PostgreSQL Source Code  git master
pgstat.h File Reference
#include "datatype/timestamp.h"
#include "libpq/pqcomm.h"
#include "miscadmin.h"
#include "port/atomics.h"
#include "portability/instr_time.h"
#include "postmaster/pgarch.h"
#include "storage/proc.h"
#include "utils/hsearch.h"
#include "utils/relcache.h"
Include dependency graph for pgstat.h:
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Data Structures

struct  PgStat_TableCounts
 
struct  PgStat_TableStatus
 
struct  PgStat_TableXactStatus
 
struct  PgStat_MsgHdr
 
struct  PgStat_MsgDummy
 
struct  PgStat_MsgInquiry
 
struct  PgStat_TableEntry
 
struct  PgStat_MsgTabstat
 
struct  PgStat_MsgTabpurge
 
struct  PgStat_MsgDropdb
 
struct  PgStat_MsgResetcounter
 
struct  PgStat_MsgResetsharedcounter
 
struct  PgStat_MsgResetsinglecounter
 
struct  PgStat_MsgResetslrucounter
 
struct  PgStat_MsgResetreplslotcounter
 
struct  PgStat_MsgAutovacStart
 
struct  PgStat_MsgVacuum
 
struct  PgStat_MsgAnalyze
 
struct  PgStat_MsgArchiver
 
struct  PgStat_MsgBgWriter
 
struct  PgStat_MsgWal
 
struct  PgStat_MsgSLRU
 
struct  PgStat_MsgReplSlot
 
struct  PgStat_MsgRecoveryConflict
 
struct  PgStat_MsgTempFile
 
struct  PgStat_FunctionCounts
 
struct  PgStat_BackendFunctionEntry
 
struct  PgStat_FunctionEntry
 
struct  PgStat_MsgFuncstat
 
struct  PgStat_MsgFuncpurge
 
struct  PgStat_MsgDeadlock
 
struct  PgStat_MsgChecksumFailure
 
struct  PgStat_MsgConn
 
union  PgStat_Msg
 
struct  PgStat_StatDBEntry
 
struct  PgStat_StatTabEntry
 
struct  PgStat_StatFuncEntry
 
struct  PgStat_ArchiverStats
 
struct  PgStat_GlobalStats
 
struct  PgStat_WalStats
 
struct  PgStat_SLRUStats
 
struct  PgStat_ReplSlotStats
 
struct  PgBackendSSLStatus
 
struct  PgBackendGSSStatus
 
struct  PgBackendStatus
 
struct  LocalPgBackendStatus
 
struct  PgStat_FunctionCallUsage
 

Macros

#define PGSTAT_STAT_PERMANENT_DIRECTORY   "pg_stat"
 
#define PGSTAT_STAT_PERMANENT_FILENAME   "pg_stat/global.stat"
 
#define PGSTAT_STAT_PERMANENT_TMPFILE   "pg_stat/global.tmp"
 
#define PG_STAT_TMP_DIR   "pg_stat_tmp"
 
#define PGSTAT_MAX_MSG_SIZE   1000
 
#define PGSTAT_MSG_PAYLOAD   (PGSTAT_MAX_MSG_SIZE - sizeof(PgStat_MsgHdr))
 
#define PGSTAT_NUM_TABENTRIES
 
#define PGSTAT_NUM_TABPURGE
 
#define PGSTAT_NUM_FUNCENTRIES
 
#define PGSTAT_NUM_FUNCPURGE
 
#define PGSTAT_FILE_FORMAT_ID   0x01A5BCA0
 
#define PG_WAIT_LWLOCK   0x01000000U
 
#define PG_WAIT_LOCK   0x03000000U
 
#define PG_WAIT_BUFFER_PIN   0x04000000U
 
#define PG_WAIT_ACTIVITY   0x05000000U
 
#define PG_WAIT_CLIENT   0x06000000U
 
#define PG_WAIT_EXTENSION   0x07000000U
 
#define PG_WAIT_IPC   0x08000000U
 
#define PG_WAIT_TIMEOUT   0x09000000U
 
#define PG_WAIT_IO   0x0A000000U
 
#define PGSTAT_NUM_PROGRESS_PARAM   20
 
#define PGSTAT_BEGIN_WRITE_ACTIVITY(beentry)
 
#define PGSTAT_END_WRITE_ACTIVITY(beentry)
 
#define pgstat_begin_read_activity(beentry, before_changecount)
 
#define pgstat_end_read_activity(beentry, after_changecount)
 
#define pgstat_read_activity_complete(before_changecount, after_changecount)
 
#define pgstat_count_heap_scan(rel)
 
#define pgstat_count_heap_getnext(rel)
 
#define pgstat_count_heap_fetch(rel)
 
#define pgstat_count_index_scan(rel)
 
#define pgstat_count_index_tuples(rel, n)
 
#define pgstat_count_buffer_read(rel)
 
#define pgstat_count_buffer_hit(rel)
 
#define pgstat_count_buffer_read_time(n)   (pgStatBlockReadTime += (n))
 
#define pgstat_count_buffer_write_time(n)   (pgStatBlockWriteTime += (n))
 

Typedefs

typedef enum TrackFunctionsLevel TrackFunctionsLevel
 
typedef enum SessionEndType SessionEndType
 
typedef enum StatMsgType StatMsgType
 
typedef int64 PgStat_Counter
 
typedef struct PgStat_TableCounts PgStat_TableCounts
 
typedef enum PgStat_Shared_Reset_Target PgStat_Shared_Reset_Target
 
typedef enum PgStat_Single_Reset_Type PgStat_Single_Reset_Type
 
typedef struct PgStat_TableStatus PgStat_TableStatus
 
typedef struct PgStat_TableXactStatus PgStat_TableXactStatus
 
typedef struct PgStat_MsgHdr PgStat_MsgHdr
 
typedef struct PgStat_MsgDummy PgStat_MsgDummy
 
typedef struct PgStat_MsgInquiry PgStat_MsgInquiry
 
typedef struct PgStat_TableEntry PgStat_TableEntry
 
typedef struct PgStat_MsgTabstat PgStat_MsgTabstat
 
typedef struct PgStat_MsgTabpurge PgStat_MsgTabpurge
 
typedef struct PgStat_MsgDropdb PgStat_MsgDropdb
 
typedef struct PgStat_MsgResetcounter PgStat_MsgResetcounter
 
typedef struct PgStat_MsgResetsharedcounter PgStat_MsgResetsharedcounter
 
typedef struct PgStat_MsgResetsinglecounter PgStat_MsgResetsinglecounter
 
typedef struct PgStat_MsgResetslrucounter PgStat_MsgResetslrucounter
 
typedef struct PgStat_MsgResetreplslotcounter PgStat_MsgResetreplslotcounter
 
typedef struct PgStat_MsgAutovacStart PgStat_MsgAutovacStart
 
typedef struct PgStat_MsgVacuum PgStat_MsgVacuum
 
typedef struct PgStat_MsgAnalyze PgStat_MsgAnalyze
 
typedef struct PgStat_MsgArchiver PgStat_MsgArchiver
 
typedef struct PgStat_MsgBgWriter PgStat_MsgBgWriter
 
typedef struct PgStat_MsgWal PgStat_MsgWal
 
typedef struct PgStat_MsgSLRU PgStat_MsgSLRU
 
typedef struct PgStat_MsgReplSlot PgStat_MsgReplSlot
 
typedef struct PgStat_MsgRecoveryConflict PgStat_MsgRecoveryConflict
 
typedef struct PgStat_MsgTempFile PgStat_MsgTempFile
 
typedef struct PgStat_FunctionCounts PgStat_FunctionCounts
 
typedef struct PgStat_BackendFunctionEntry PgStat_BackendFunctionEntry
 
typedef struct PgStat_FunctionEntry PgStat_FunctionEntry
 
typedef struct PgStat_MsgFuncstat PgStat_MsgFuncstat
 
typedef struct PgStat_MsgFuncpurge PgStat_MsgFuncpurge
 
typedef struct PgStat_MsgDeadlock PgStat_MsgDeadlock
 
typedef struct PgStat_MsgChecksumFailure PgStat_MsgChecksumFailure
 
typedef struct PgStat_MsgConn PgStat_MsgConn
 
typedef union PgStat_Msg PgStat_Msg
 
typedef struct PgStat_StatDBEntry PgStat_StatDBEntry
 
typedef struct PgStat_StatTabEntry PgStat_StatTabEntry
 
typedef struct PgStat_StatFuncEntry PgStat_StatFuncEntry
 
typedef struct PgStat_ArchiverStats PgStat_ArchiverStats
 
typedef struct PgStat_GlobalStats PgStat_GlobalStats
 
typedef struct PgStat_WalStats PgStat_WalStats
 
typedef struct PgStat_SLRUStats PgStat_SLRUStats
 
typedef struct PgStat_ReplSlotStats PgStat_ReplSlotStats
 
typedef enum BackendState BackendState
 
typedef enum ProgressCommandType ProgressCommandType
 
typedef struct PgBackendSSLStatus PgBackendSSLStatus
 
typedef struct PgBackendGSSStatus PgBackendGSSStatus
 
typedef struct PgBackendStatus PgBackendStatus
 
typedef struct LocalPgBackendStatus LocalPgBackendStatus
 
typedef struct PgStat_FunctionCallUsage PgStat_FunctionCallUsage
 

Enumerations

enum  TrackFunctionsLevel { TRACK_FUNC_OFF, TRACK_FUNC_PL, TRACK_FUNC_ALL }
 
enum  SessionEndType {
  DISCONNECT_NOT_YET, DISCONNECT_NORMAL, DISCONNECT_CLIENT_EOF, DISCONNECT_FATAL,
  DISCONNECT_KILLED
}
 
enum  StatMsgType {
  PGSTAT_MTYPE_DUMMY, PGSTAT_MTYPE_INQUIRY, PGSTAT_MTYPE_TABSTAT, PGSTAT_MTYPE_TABPURGE,
  PGSTAT_MTYPE_DROPDB, PGSTAT_MTYPE_RESETCOUNTER, PGSTAT_MTYPE_RESETSHAREDCOUNTER, PGSTAT_MTYPE_RESETSINGLECOUNTER,
  PGSTAT_MTYPE_RESETSLRUCOUNTER, PGSTAT_MTYPE_RESETREPLSLOTCOUNTER, PGSTAT_MTYPE_AUTOVAC_START, PGSTAT_MTYPE_VACUUM,
  PGSTAT_MTYPE_ANALYZE, PGSTAT_MTYPE_ARCHIVER, PGSTAT_MTYPE_BGWRITER, PGSTAT_MTYPE_WAL,
  PGSTAT_MTYPE_SLRU, PGSTAT_MTYPE_FUNCSTAT, PGSTAT_MTYPE_FUNCPURGE, PGSTAT_MTYPE_RECOVERYCONFLICT,
  PGSTAT_MTYPE_TEMPFILE, PGSTAT_MTYPE_DEADLOCK, PGSTAT_MTYPE_CHECKSUMFAILURE, PGSTAT_MTYPE_REPLSLOT,
  PGSTAT_MTYPE_CONNECTION
}
 
enum  PgStat_Shared_Reset_Target { RESET_ARCHIVER, RESET_BGWRITER, RESET_WAL }
 
enum  PgStat_Single_Reset_Type { RESET_TABLE, RESET_FUNCTION }
 
enum  BackendState {
  STATE_UNDEFINED, STATE_IDLE, STATE_RUNNING, STATE_IDLEINTRANSACTION,
  STATE_FASTPATH, STATE_IDLEINTRANSACTION_ABORTED, STATE_DISABLED
}
 
enum  WaitEventActivity {
  WAIT_EVENT_ARCHIVER_MAIN = PG_WAIT_ACTIVITY, WAIT_EVENT_AUTOVACUUM_MAIN, WAIT_EVENT_BGWRITER_HIBERNATE, WAIT_EVENT_BGWRITER_MAIN,
  WAIT_EVENT_CHECKPOINTER_MAIN, WAIT_EVENT_LOGICAL_APPLY_MAIN, WAIT_EVENT_LOGICAL_LAUNCHER_MAIN, WAIT_EVENT_PGSTAT_MAIN,
  WAIT_EVENT_RECOVERY_WAL_STREAM, WAIT_EVENT_SYSLOGGER_MAIN, WAIT_EVENT_WAL_RECEIVER_MAIN, WAIT_EVENT_WAL_SENDER_MAIN,
  WAIT_EVENT_WAL_WRITER_MAIN
}
 
enum  WaitEventClient {
  WAIT_EVENT_CLIENT_READ = PG_WAIT_CLIENT, WAIT_EVENT_CLIENT_WRITE, WAIT_EVENT_GSS_OPEN_SERVER, WAIT_EVENT_LIBPQWALRECEIVER_CONNECT,
  WAIT_EVENT_LIBPQWALRECEIVER_RECEIVE, WAIT_EVENT_SSL_OPEN_SERVER, WAIT_EVENT_WAL_RECEIVER_WAIT_START, WAIT_EVENT_WAL_SENDER_WAIT_WAL,
  WAIT_EVENT_WAL_SENDER_WRITE_DATA
}
 
enum  WaitEventIPC {
  WAIT_EVENT_BACKUP_WAIT_WAL_ARCHIVE = PG_WAIT_IPC, WAIT_EVENT_BGWORKER_SHUTDOWN, WAIT_EVENT_BGWORKER_STARTUP, WAIT_EVENT_BTREE_PAGE,
  WAIT_EVENT_CHECKPOINT_DONE, WAIT_EVENT_CHECKPOINT_START, WAIT_EVENT_EXECUTE_GATHER, WAIT_EVENT_HASH_BATCH_ALLOCATE,
  WAIT_EVENT_HASH_BATCH_ELECT, WAIT_EVENT_HASH_BATCH_LOAD, WAIT_EVENT_HASH_BUILD_ALLOCATE, WAIT_EVENT_HASH_BUILD_ELECT,
  WAIT_EVENT_HASH_BUILD_HASH_INNER, WAIT_EVENT_HASH_BUILD_HASH_OUTER, WAIT_EVENT_HASH_GROW_BATCHES_ALLOCATE, WAIT_EVENT_HASH_GROW_BATCHES_DECIDE,
  WAIT_EVENT_HASH_GROW_BATCHES_ELECT, WAIT_EVENT_HASH_GROW_BATCHES_FINISH, WAIT_EVENT_HASH_GROW_BATCHES_REPARTITION, WAIT_EVENT_HASH_GROW_BUCKETS_ALLOCATE,
  WAIT_EVENT_HASH_GROW_BUCKETS_ELECT, WAIT_EVENT_HASH_GROW_BUCKETS_REINSERT, WAIT_EVENT_LOGICAL_SYNC_DATA, WAIT_EVENT_LOGICAL_SYNC_STATE_CHANGE,
  WAIT_EVENT_MQ_INTERNAL, WAIT_EVENT_MQ_PUT_MESSAGE, WAIT_EVENT_MQ_RECEIVE, WAIT_EVENT_MQ_SEND,
  WAIT_EVENT_PARALLEL_BITMAP_SCAN, WAIT_EVENT_PARALLEL_CREATE_INDEX_SCAN, WAIT_EVENT_PARALLEL_FINISH, WAIT_EVENT_PROCARRAY_GROUP_UPDATE,
  WAIT_EVENT_PROC_SIGNAL_BARRIER, WAIT_EVENT_PROMOTE, WAIT_EVENT_RECOVERY_CONFLICT_SNAPSHOT, WAIT_EVENT_RECOVERY_CONFLICT_TABLESPACE,
  WAIT_EVENT_RECOVERY_PAUSE, WAIT_EVENT_REPLICATION_ORIGIN_DROP, WAIT_EVENT_REPLICATION_SLOT_DROP, WAIT_EVENT_SAFE_SNAPSHOT,
  WAIT_EVENT_SYNC_REP, WAIT_EVENT_XACT_GROUP_UPDATE
}
 
enum  WaitEventTimeout {
  WAIT_EVENT_BASE_BACKUP_THROTTLE = PG_WAIT_TIMEOUT, WAIT_EVENT_PG_SLEEP, WAIT_EVENT_RECOVERY_APPLY_DELAY, WAIT_EVENT_RECOVERY_RETRIEVE_RETRY_INTERVAL,
  WAIT_EVENT_VACUUM_DELAY
}
 
enum  WaitEventIO {
  WAIT_EVENT_BASEBACKUP_READ = PG_WAIT_IO, WAIT_EVENT_BUFFILE_READ, WAIT_EVENT_BUFFILE_WRITE, WAIT_EVENT_BUFFILE_TRUNCATE,
  WAIT_EVENT_CONTROL_FILE_READ, WAIT_EVENT_CONTROL_FILE_SYNC, WAIT_EVENT_CONTROL_FILE_SYNC_UPDATE, WAIT_EVENT_CONTROL_FILE_WRITE,
  WAIT_EVENT_CONTROL_FILE_WRITE_UPDATE, WAIT_EVENT_COPY_FILE_READ, WAIT_EVENT_COPY_FILE_WRITE, WAIT_EVENT_DATA_FILE_EXTEND,
  WAIT_EVENT_DATA_FILE_FLUSH, WAIT_EVENT_DATA_FILE_IMMEDIATE_SYNC, WAIT_EVENT_DATA_FILE_PREFETCH, WAIT_EVENT_DATA_FILE_READ,
  WAIT_EVENT_DATA_FILE_SYNC, WAIT_EVENT_DATA_FILE_TRUNCATE, WAIT_EVENT_DATA_FILE_WRITE, WAIT_EVENT_DSM_FILL_ZERO_WRITE,
  WAIT_EVENT_LOCK_FILE_ADDTODATADIR_READ, WAIT_EVENT_LOCK_FILE_ADDTODATADIR_SYNC, WAIT_EVENT_LOCK_FILE_ADDTODATADIR_WRITE, WAIT_EVENT_LOCK_FILE_CREATE_READ,
  WAIT_EVENT_LOCK_FILE_CREATE_SYNC, WAIT_EVENT_LOCK_FILE_CREATE_WRITE, WAIT_EVENT_LOCK_FILE_RECHECKDATADIR_READ, WAIT_EVENT_LOGICAL_REWRITE_CHECKPOINT_SYNC,
  WAIT_EVENT_LOGICAL_REWRITE_MAPPING_SYNC, WAIT_EVENT_LOGICAL_REWRITE_MAPPING_WRITE, WAIT_EVENT_LOGICAL_REWRITE_SYNC, WAIT_EVENT_LOGICAL_REWRITE_TRUNCATE,
  WAIT_EVENT_LOGICAL_REWRITE_WRITE, WAIT_EVENT_RELATION_MAP_READ, WAIT_EVENT_RELATION_MAP_SYNC, WAIT_EVENT_RELATION_MAP_WRITE,
  WAIT_EVENT_REORDER_BUFFER_READ, WAIT_EVENT_REORDER_BUFFER_WRITE, WAIT_EVENT_REORDER_LOGICAL_MAPPING_READ, WAIT_EVENT_REPLICATION_SLOT_READ,
  WAIT_EVENT_REPLICATION_SLOT_RESTORE_SYNC, WAIT_EVENT_REPLICATION_SLOT_SYNC, WAIT_EVENT_REPLICATION_SLOT_WRITE, WAIT_EVENT_SLRU_FLUSH_SYNC,
  WAIT_EVENT_SLRU_READ, WAIT_EVENT_SLRU_SYNC, WAIT_EVENT_SLRU_WRITE, WAIT_EVENT_SNAPBUILD_READ,
  WAIT_EVENT_SNAPBUILD_SYNC, WAIT_EVENT_SNAPBUILD_WRITE, WAIT_EVENT_TIMELINE_HISTORY_FILE_SYNC, WAIT_EVENT_TIMELINE_HISTORY_FILE_WRITE,
  WAIT_EVENT_TIMELINE_HISTORY_READ, WAIT_EVENT_TIMELINE_HISTORY_SYNC, WAIT_EVENT_TIMELINE_HISTORY_WRITE, WAIT_EVENT_TWOPHASE_FILE_READ,
  WAIT_EVENT_TWOPHASE_FILE_SYNC, WAIT_EVENT_TWOPHASE_FILE_WRITE, WAIT_EVENT_WALSENDER_TIMELINE_HISTORY_READ, WAIT_EVENT_WAL_BOOTSTRAP_SYNC,
  WAIT_EVENT_WAL_BOOTSTRAP_WRITE, WAIT_EVENT_WAL_COPY_READ, WAIT_EVENT_WAL_COPY_SYNC, WAIT_EVENT_WAL_COPY_WRITE,
  WAIT_EVENT_WAL_INIT_SYNC, WAIT_EVENT_WAL_INIT_WRITE, WAIT_EVENT_WAL_READ, WAIT_EVENT_WAL_SYNC,
  WAIT_EVENT_WAL_SYNC_METHOD_ASSIGN, WAIT_EVENT_WAL_WRITE, WAIT_EVENT_LOGICAL_CHANGES_READ, WAIT_EVENT_LOGICAL_CHANGES_WRITE,
  WAIT_EVENT_LOGICAL_SUBXACT_READ, WAIT_EVENT_LOGICAL_SUBXACT_WRITE
}
 
enum  ProgressCommandType {
  PROGRESS_COMMAND_INVALID, PROGRESS_COMMAND_VACUUM, PROGRESS_COMMAND_ANALYZE, PROGRESS_COMMAND_CLUSTER,
  PROGRESS_COMMAND_CREATE_INDEX, PROGRESS_COMMAND_BASEBACKUP, PROGRESS_COMMAND_COPY
}
 

Functions

Size BackendStatusShmemSize (void)
 
void CreateSharedBackendStatus (void)
 
void pgstat_init (void)
 
int pgstat_start (void)
 
void pgstat_reset_all (void)
 
void allow_immediate_pgstat_restart (void)
 
void pgstat_ping (void)
 
void pgstat_report_stat (bool force)
 
void pgstat_vacuum_stat (void)
 
void pgstat_drop_database (Oid databaseid)
 
void pgstat_clear_snapshot (void)
 
void pgstat_reset_counters (void)
 
void pgstat_reset_shared_counters (const char *)
 
void pgstat_reset_single_counter (Oid objectid, PgStat_Single_Reset_Type type)
 
void pgstat_reset_slru_counter (const char *)
 
void pgstat_reset_replslot_counter (const char *name)
 
void pgstat_report_autovac (Oid dboid)
 
void pgstat_report_vacuum (Oid tableoid, bool shared, PgStat_Counter livetuples, PgStat_Counter deadtuples)
 
void pgstat_report_analyze (Relation rel, PgStat_Counter livetuples, PgStat_Counter deadtuples, bool resetcounter)
 
void pgstat_report_recovery_conflict (int reason)
 
void pgstat_report_deadlock (void)
 
void pgstat_report_checksum_failures_in_db (Oid dboid, int failurecount)
 
void pgstat_report_checksum_failure (void)
 
void pgstat_report_replslot (const char *slotname, int spilltxns, int spillcount, int spillbytes, int streamtxns, int streamcount, int streambytes)
 
void pgstat_report_replslot_drop (const char *slotname)
 
void pgstat_initialize (void)
 
void pgstat_bestart (void)
 
void pgstat_report_activity (BackendState state, const char *cmd_str)
 
void pgstat_report_tempfile (size_t filesize)
 
void pgstat_report_appname (const char *appname)
 
void pgstat_report_xact_timestamp (TimestampTz tstamp)
 
const char * pgstat_get_wait_event (uint32 wait_event_info)
 
const char * pgstat_get_wait_event_type (uint32 wait_event_info)
 
const char * pgstat_get_backend_current_activity (int pid, bool checkUser)
 
const char * pgstat_get_crashed_backend_activity (int pid, char *buffer, int buflen)
 
void pgstat_progress_start_command (ProgressCommandType cmdtype, Oid relid)
 
void pgstat_progress_update_param (int index, int64 val)
 
void pgstat_progress_update_multi_param (int nparam, const int *index, const int64 *val)
 
void pgstat_progress_end_command (void)
 
PgStat_TableStatusfind_tabstat_entry (Oid rel_id)
 
PgStat_BackendFunctionEntryfind_funcstat_entry (Oid func_id)
 
void pgstat_initstats (Relation rel)
 
char * pgstat_clip_activity (const char *raw_activity)
 
static void pgstat_report_wait_start (uint32 wait_event_info)
 
static void pgstat_report_wait_end (void)
 
void pgstat_count_heap_insert (Relation rel, PgStat_Counter n)
 
void pgstat_count_heap_update (Relation rel, bool hot)
 
void pgstat_count_heap_delete (Relation rel)
 
void pgstat_count_truncate (Relation rel)
 
void pgstat_update_heap_dead_tuples (Relation rel, int delta)
 
void pgstat_init_function_usage (struct FunctionCallInfoBaseData *fcinfo, PgStat_FunctionCallUsage *fcu)
 
void pgstat_end_function_usage (PgStat_FunctionCallUsage *fcu, bool finalize)
 
void AtEOXact_PgStat (bool isCommit, bool parallel)
 
void AtEOSubXact_PgStat (bool isCommit, int nestDepth)
 
void AtPrepare_PgStat (void)
 
void PostPrepare_PgStat (void)
 
void pgstat_twophase_postcommit (TransactionId xid, uint16 info, void *recdata, uint32 len)
 
void pgstat_twophase_postabort (TransactionId xid, uint16 info, void *recdata, uint32 len)
 
void pgstat_send_archiver (const char *xlog, bool failed)
 
void pgstat_send_bgwriter (void)
 
void pgstat_send_wal (void)
 
PgStat_StatDBEntrypgstat_fetch_stat_dbentry (Oid dbid)
 
PgStat_StatTabEntrypgstat_fetch_stat_tabentry (Oid relid)
 
PgBackendStatuspgstat_fetch_stat_beentry (int beid)
 
LocalPgBackendStatuspgstat_fetch_stat_local_beentry (int beid)
 
PgStat_StatFuncEntrypgstat_fetch_stat_funcentry (Oid funcid)
 
int pgstat_fetch_stat_numbackends (void)
 
PgStat_ArchiverStatspgstat_fetch_stat_archiver (void)
 
PgStat_GlobalStatspgstat_fetch_global (void)
 
PgStat_WalStatspgstat_fetch_stat_wal (void)
 
PgStat_SLRUStatspgstat_fetch_slru (void)
 
PgStat_ReplSlotStatspgstat_fetch_replslot (int *nslots_p)
 
void pgstat_count_slru_page_zeroed (int slru_idx)
 
void pgstat_count_slru_page_hit (int slru_idx)
 
void pgstat_count_slru_page_read (int slru_idx)
 
void pgstat_count_slru_page_written (int slru_idx)
 
void pgstat_count_slru_page_exists (int slru_idx)
 
void pgstat_count_slru_flush (int slru_idx)
 
void pgstat_count_slru_truncate (int slru_idx)
 
const char * pgstat_slru_name (int slru_idx)
 
int pgstat_slru_index (const char *name)
 

Variables

PGDLLIMPORT bool pgstat_track_activities
 
PGDLLIMPORT bool pgstat_track_counts
 
PGDLLIMPORT int pgstat_track_functions
 
PGDLLIMPORT int pgstat_track_activity_query_size
 
char * pgstat_stat_directory
 
char * pgstat_stat_tmpname
 
char * pgstat_stat_filename
 
PgStat_MsgBgWriter BgWriterStats
 
PgStat_MsgWal WalStats
 
PgStat_Counter pgStatBlockReadTime
 
PgStat_Counter pgStatBlockWriteTime
 
SessionEndType pgStatSessionEndCause
 

Macro Definition Documentation

◆ PG_STAT_TMP_DIR

#define PG_STAT_TMP_DIR   "pg_stat_tmp"

Definition at line 34 of file pgstat.h.

◆ PG_WAIT_ACTIVITY

#define PG_WAIT_ACTIVITY   0x05000000U

Definition at line 898 of file pgstat.h.

Referenced by pgstat_get_wait_event(), and pgstat_get_wait_event_type().

◆ PG_WAIT_BUFFER_PIN

#define PG_WAIT_BUFFER_PIN   0x04000000U

◆ PG_WAIT_CLIENT

#define PG_WAIT_CLIENT   0x06000000U

Definition at line 899 of file pgstat.h.

Referenced by pgstat_get_wait_event(), and pgstat_get_wait_event_type().

◆ PG_WAIT_EXTENSION

◆ PG_WAIT_IO

#define PG_WAIT_IO   0x0A000000U

Definition at line 903 of file pgstat.h.

Referenced by pgstat_get_wait_event(), and pgstat_get_wait_event_type().

◆ PG_WAIT_IPC

#define PG_WAIT_IPC   0x08000000U

Definition at line 901 of file pgstat.h.

Referenced by pgstat_get_wait_event(), and pgstat_get_wait_event_type().

◆ PG_WAIT_LOCK

#define PG_WAIT_LOCK   0x03000000U

◆ PG_WAIT_LWLOCK

#define PG_WAIT_LWLOCK   0x01000000U

◆ PG_WAIT_TIMEOUT

#define PG_WAIT_TIMEOUT   0x09000000U

Definition at line 902 of file pgstat.h.

Referenced by pgstat_get_wait_event(), and pgstat_get_wait_event_type().

◆ pgstat_begin_read_activity

#define pgstat_begin_read_activity (   beentry,
  before_changecount 
)
Value:
do { \
(before_changecount) = (beentry)->st_changecount; \
pg_read_barrier(); \
} while (0)

Definition at line 1301 of file pgstat.h.

Referenced by pgstat_get_backend_current_activity(), and pgstat_read_current_status().

◆ PGSTAT_BEGIN_WRITE_ACTIVITY

#define PGSTAT_BEGIN_WRITE_ACTIVITY (   beentry)

◆ pgstat_count_buffer_hit

#define pgstat_count_buffer_hit (   rel)
Value:
do { \
if ((rel)->pgstat_info != NULL) \
(rel)->pgstat_info->t_counts.t_blocks_hit++; \
} while (0)

Definition at line 1558 of file pgstat.h.

Referenced by ReadBufferExtended().

◆ pgstat_count_buffer_read

#define pgstat_count_buffer_read (   rel)
Value:
do { \
if ((rel)->pgstat_info != NULL) \
(rel)->pgstat_info->t_counts.t_blocks_fetched++; \
} while (0)

Definition at line 1553 of file pgstat.h.

Referenced by ReadBufferExtended().

◆ pgstat_count_buffer_read_time

#define pgstat_count_buffer_read_time (   n)    (pgStatBlockReadTime += (n))

Definition at line 1563 of file pgstat.h.

Referenced by ReadBuffer_common().

◆ pgstat_count_buffer_write_time

#define pgstat_count_buffer_write_time (   n)    (pgStatBlockWriteTime += (n))

Definition at line 1565 of file pgstat.h.

Referenced by FlushBuffer().

◆ pgstat_count_heap_fetch

#define pgstat_count_heap_fetch (   rel)
Value:
do { \
if ((rel)->pgstat_info != NULL) \
(rel)->pgstat_info->t_counts.t_tuples_fetched++; \
} while (0)

Definition at line 1538 of file pgstat.h.

Referenced by heapam_scan_bitmap_next_tuple(), and index_fetch_heap().

◆ pgstat_count_heap_getnext

#define pgstat_count_heap_getnext (   rel)
Value:
do { \
if ((rel)->pgstat_info != NULL) \
(rel)->pgstat_info->t_counts.t_tuples_returned++; \
} while (0)

Definition at line 1533 of file pgstat.h.

Referenced by heap_getnext(), heap_getnextslot(), heap_getnextslot_tidrange(), and heapam_scan_sample_next_tuple().

◆ pgstat_count_heap_scan

#define pgstat_count_heap_scan (   rel)
Value:
do { \
if ((rel)->pgstat_info != NULL) \
(rel)->pgstat_info->t_counts.t_numscans++; \
} while (0)

Definition at line 1528 of file pgstat.h.

Referenced by initscan().

◆ pgstat_count_index_scan

#define pgstat_count_index_scan (   rel)
Value:
do { \
if ((rel)->pgstat_info != NULL) \
(rel)->pgstat_info->t_counts.t_numscans++; \
} while (0)

Definition at line 1543 of file pgstat.h.

Referenced by _bt_first(), _hash_first(), bringetbitmap(), gistgetbitmap(), and gistgettuple().

◆ pgstat_count_index_tuples

#define pgstat_count_index_tuples (   rel,
 
)
Value:
do { \
if ((rel)->pgstat_info != NULL) \
(rel)->pgstat_info->t_counts.t_tuples_returned += (n); \
} while (0)

Definition at line 1548 of file pgstat.h.

Referenced by index_getbitmap(), and index_getnext_tid().

◆ pgstat_end_read_activity

#define pgstat_end_read_activity (   beentry,
  after_changecount 
)
Value:
do { \
pg_read_barrier(); \
(after_changecount) = (beentry)->st_changecount; \
} while (0)

Definition at line 1307 of file pgstat.h.

Referenced by pgstat_get_backend_current_activity(), and pgstat_read_current_status().

◆ PGSTAT_END_WRITE_ACTIVITY

#define PGSTAT_END_WRITE_ACTIVITY (   beentry)
Value:
do { \
pg_write_barrier(); \
(beentry)->st_changecount++; \
Assert(((beentry)->st_changecount & 1) == 0); \
END_CRIT_SECTION(); \
} while (0)

Definition at line 1293 of file pgstat.h.

Referenced by pgstat_beshutdown_hook(), pgstat_bestart(), pgstat_progress_end_command(), pgstat_progress_start_command(), pgstat_progress_update_multi_param(), pgstat_progress_update_param(), pgstat_report_activity(), pgstat_report_appname(), and pgstat_report_xact_timestamp().

◆ PGSTAT_FILE_FORMAT_ID

#define PGSTAT_FILE_FORMAT_ID   0x01A5BCA0

◆ PGSTAT_MAX_MSG_SIZE

#define PGSTAT_MAX_MSG_SIZE   1000

Definition at line 224 of file pgstat.h.

Referenced by pgstat_init().

◆ PGSTAT_MSG_PAYLOAD

#define PGSTAT_MSG_PAYLOAD   (PGSTAT_MAX_MSG_SIZE - sizeof(PgStat_MsgHdr))

Definition at line 225 of file pgstat.h.

◆ PGSTAT_NUM_FUNCENTRIES

#define PGSTAT_NUM_FUNCENTRIES
Value:
((PGSTAT_MSG_PAYLOAD - sizeof(Oid) - sizeof(int)) \
unsigned int Oid
Definition: postgres_ext.h:31
#define PGSTAT_MSG_PAYLOAD
Definition: pgstat.h:225

Definition at line 583 of file pgstat.h.

Referenced by pgstat_send_funcstats().

◆ PGSTAT_NUM_FUNCPURGE

#define PGSTAT_NUM_FUNCPURGE
Value:
((PGSTAT_MSG_PAYLOAD - sizeof(Oid) - sizeof(int)) \
/ sizeof(Oid))
unsigned int Oid
Definition: postgres_ext.h:31
#define PGSTAT_MSG_PAYLOAD
Definition: pgstat.h:225

Definition at line 600 of file pgstat.h.

Referenced by pgstat_vacuum_stat().

◆ PGSTAT_NUM_PROGRESS_PARAM

#define PGSTAT_NUM_PROGRESS_PARAM   20

◆ PGSTAT_NUM_TABENTRIES

#define PGSTAT_NUM_TABENTRIES
Value:
((PGSTAT_MSG_PAYLOAD - sizeof(Oid) - 3 * sizeof(int) - 2 * sizeof(PgStat_Counter)) \
/ sizeof(PgStat_TableEntry))
int64 PgStat_Counter
Definition: pgstat.h:91
unsigned int Oid
Definition: postgres_ext.h:31
struct PgStat_TableEntry PgStat_TableEntry
#define PGSTAT_MSG_PAYLOAD
Definition: pgstat.h:225

Definition at line 281 of file pgstat.h.

Referenced by pgstat_report_stat().

◆ PGSTAT_NUM_TABPURGE

#define PGSTAT_NUM_TABPURGE
Value:
((PGSTAT_MSG_PAYLOAD - sizeof(Oid) - sizeof(int)) \
/ sizeof(Oid))
unsigned int Oid
Definition: postgres_ext.h:31
#define PGSTAT_MSG_PAYLOAD
Definition: pgstat.h:225

Definition at line 303 of file pgstat.h.

Referenced by pgstat_vacuum_stat().

◆ pgstat_read_activity_complete

#define pgstat_read_activity_complete (   before_changecount,
  after_changecount 
)
Value:
((before_changecount) == (after_changecount) && \
((before_changecount) & 1) == 0)

Definition at line 1313 of file pgstat.h.

Referenced by pgstat_get_backend_current_activity(), and pgstat_read_current_status().

◆ PGSTAT_STAT_PERMANENT_DIRECTORY

#define PGSTAT_STAT_PERMANENT_DIRECTORY   "pg_stat"

Definition at line 29 of file pgstat.h.

Referenced by get_dbstat_filename(), and pgstat_reset_all().

◆ PGSTAT_STAT_PERMANENT_FILENAME

#define PGSTAT_STAT_PERMANENT_FILENAME   "pg_stat/global.stat"

◆ PGSTAT_STAT_PERMANENT_TMPFILE

#define PGSTAT_STAT_PERMANENT_TMPFILE   "pg_stat/global.tmp"

Definition at line 31 of file pgstat.h.

Referenced by pgstat_write_statsfiles().

Typedef Documentation

◆ BackendState

typedef enum BackendState BackendState

◆ LocalPgBackendStatus

◆ PgBackendGSSStatus

◆ PgBackendSSLStatus

◆ PgBackendStatus

◆ PgStat_ArchiverStats

◆ PgStat_BackendFunctionEntry

◆ PgStat_Counter

typedef int64 PgStat_Counter

Definition at line 91 of file pgstat.h.

◆ PgStat_FunctionCallUsage

◆ PgStat_FunctionCounts

◆ PgStat_FunctionEntry

◆ PgStat_GlobalStats

◆ PgStat_Msg

typedef union PgStat_Msg PgStat_Msg

◆ PgStat_MsgAnalyze

◆ PgStat_MsgArchiver

◆ PgStat_MsgAutovacStart

◆ PgStat_MsgBgWriter

◆ PgStat_MsgChecksumFailure

◆ PgStat_MsgConn

◆ PgStat_MsgDeadlock

◆ PgStat_MsgDropdb

◆ PgStat_MsgDummy

◆ PgStat_MsgFuncpurge

◆ PgStat_MsgFuncstat

◆ PgStat_MsgHdr

typedef struct PgStat_MsgHdr PgStat_MsgHdr

◆ PgStat_MsgInquiry

◆ PgStat_MsgRecoveryConflict

◆ PgStat_MsgReplSlot

◆ PgStat_MsgResetcounter

◆ PgStat_MsgResetreplslotcounter

◆ PgStat_MsgResetsharedcounter

◆ PgStat_MsgResetsinglecounter

◆ PgStat_MsgResetslrucounter

◆ PgStat_MsgSLRU

◆ PgStat_MsgTabpurge

◆ PgStat_MsgTabstat

◆ PgStat_MsgTempFile

◆ PgStat_MsgVacuum

◆ PgStat_MsgWal

typedef struct PgStat_MsgWal PgStat_MsgWal

◆ PgStat_ReplSlotStats

◆ PgStat_Shared_Reset_Target

◆ PgStat_Single_Reset_Type

◆ PgStat_SLRUStats

◆ PgStat_StatDBEntry

◆ PgStat_StatFuncEntry

◆ PgStat_StatTabEntry

◆ PgStat_TableCounts

◆ PgStat_TableEntry

◆ PgStat_TableStatus

◆ PgStat_TableXactStatus

◆ PgStat_WalStats

◆ ProgressCommandType

◆ SessionEndType

◆ StatMsgType

typedef enum StatMsgType StatMsgType

◆ TrackFunctionsLevel

Enumeration Type Documentation

◆ BackendState

Enumerator
STATE_UNDEFINED 
STATE_IDLE 
STATE_RUNNING 
STATE_IDLEINTRANSACTION 
STATE_FASTPATH 
STATE_IDLEINTRANSACTION_ABORTED 
STATE_DISABLED 

Definition at line 879 of file pgstat.h.

◆ PgStat_Shared_Reset_Target

Enumerator
RESET_ARCHIVER 
RESET_BGWRITER 
RESET_WAL 

Definition at line 136 of file pgstat.h.

137 {
140  RESET_WAL
PgStat_Shared_Reset_Target
Definition: pgstat.h:136

◆ PgStat_Single_Reset_Type

Enumerator
RESET_TABLE 
RESET_FUNCTION 

Definition at line 144 of file pgstat.h.

145 {
146  RESET_TABLE,
PgStat_Single_Reset_Type
Definition: pgstat.h:144

◆ ProgressCommandType

Enumerator
PROGRESS_COMMAND_INVALID 
PROGRESS_COMMAND_VACUUM 
PROGRESS_COMMAND_ANALYZE 
PROGRESS_COMMAND_CLUSTER 
PROGRESS_COMMAND_CREATE_INDEX 
PROGRESS_COMMAND_BASEBACKUP 
PROGRESS_COMMAND_COPY 

Definition at line 1107 of file pgstat.h.

◆ SessionEndType

Enumerator
DISCONNECT_NOT_YET 
DISCONNECT_NORMAL 
DISCONNECT_CLIENT_EOF 
DISCONNECT_FATAL 
DISCONNECT_KILLED 

Definition at line 45 of file pgstat.h.

◆ StatMsgType

Enumerator
PGSTAT_MTYPE_DUMMY 
PGSTAT_MTYPE_INQUIRY 
PGSTAT_MTYPE_TABSTAT 
PGSTAT_MTYPE_TABPURGE 
PGSTAT_MTYPE_DROPDB 
PGSTAT_MTYPE_RESETCOUNTER 
PGSTAT_MTYPE_RESETSHAREDCOUNTER 
PGSTAT_MTYPE_RESETSINGLECOUNTER 
PGSTAT_MTYPE_RESETSLRUCOUNTER 
PGSTAT_MTYPE_RESETREPLSLOTCOUNTER 
PGSTAT_MTYPE_AUTOVAC_START 
PGSTAT_MTYPE_VACUUM 
PGSTAT_MTYPE_ANALYZE 
PGSTAT_MTYPE_ARCHIVER 
PGSTAT_MTYPE_BGWRITER 
PGSTAT_MTYPE_WAL 
PGSTAT_MTYPE_SLRU 
PGSTAT_MTYPE_FUNCSTAT 
PGSTAT_MTYPE_FUNCPURGE 
PGSTAT_MTYPE_RECOVERYCONFLICT 
PGSTAT_MTYPE_TEMPFILE 
PGSTAT_MTYPE_DEADLOCK 
PGSTAT_MTYPE_CHECKSUMFAILURE 
PGSTAT_MTYPE_REPLSLOT 
PGSTAT_MTYPE_CONNECTION 

Definition at line 58 of file pgstat.h.

59 {
85 } StatMsgType;
StatMsgType
Definition: pgstat.h:58

◆ TrackFunctionsLevel

Enumerator
TRACK_FUNC_OFF 
TRACK_FUNC_PL 
TRACK_FUNC_ALL 

Definition at line 37 of file pgstat.h.

◆ WaitEventActivity

Enumerator
WAIT_EVENT_ARCHIVER_MAIN 
WAIT_EVENT_AUTOVACUUM_MAIN 
WAIT_EVENT_BGWRITER_HIBERNATE 
WAIT_EVENT_BGWRITER_MAIN 
WAIT_EVENT_CHECKPOINTER_MAIN 
WAIT_EVENT_LOGICAL_APPLY_MAIN 
WAIT_EVENT_LOGICAL_LAUNCHER_MAIN 
WAIT_EVENT_PGSTAT_MAIN 
WAIT_EVENT_RECOVERY_WAL_STREAM 
WAIT_EVENT_SYSLOGGER_MAIN 
WAIT_EVENT_WAL_RECEIVER_MAIN 
WAIT_EVENT_WAL_SENDER_MAIN 
WAIT_EVENT_WAL_WRITER_MAIN 

Definition at line 913 of file pgstat.h.

◆ WaitEventClient

Enumerator
WAIT_EVENT_CLIENT_READ 
WAIT_EVENT_CLIENT_WRITE 
WAIT_EVENT_GSS_OPEN_SERVER 
WAIT_EVENT_LIBPQWALRECEIVER_CONNECT 
WAIT_EVENT_LIBPQWALRECEIVER_RECEIVE 
WAIT_EVENT_SSL_OPEN_SERVER 
WAIT_EVENT_WAL_RECEIVER_WAIT_START 
WAIT_EVENT_WAL_SENDER_WAIT_WAL 
WAIT_EVENT_WAL_SENDER_WRITE_DATA 

Definition at line 938 of file pgstat.h.

◆ WaitEventIO

Enumerator
WAIT_EVENT_BASEBACKUP_READ 
WAIT_EVENT_BUFFILE_READ 
WAIT_EVENT_BUFFILE_WRITE 
WAIT_EVENT_BUFFILE_TRUNCATE 
WAIT_EVENT_CONTROL_FILE_READ 
WAIT_EVENT_CONTROL_FILE_SYNC 
WAIT_EVENT_CONTROL_FILE_SYNC_UPDATE 
WAIT_EVENT_CONTROL_FILE_WRITE 
WAIT_EVENT_CONTROL_FILE_WRITE_UPDATE 
WAIT_EVENT_COPY_FILE_READ 
WAIT_EVENT_COPY_FILE_WRITE 
WAIT_EVENT_DATA_FILE_EXTEND 
WAIT_EVENT_DATA_FILE_FLUSH 
WAIT_EVENT_DATA_FILE_IMMEDIATE_SYNC 
WAIT_EVENT_DATA_FILE_PREFETCH 
WAIT_EVENT_DATA_FILE_READ 
WAIT_EVENT_DATA_FILE_SYNC 
WAIT_EVENT_DATA_FILE_TRUNCATE 
WAIT_EVENT_DATA_FILE_WRITE 
WAIT_EVENT_DSM_FILL_ZERO_WRITE 
WAIT_EVENT_LOCK_FILE_ADDTODATADIR_READ 
WAIT_EVENT_LOCK_FILE_ADDTODATADIR_SYNC 
WAIT_EVENT_LOCK_FILE_ADDTODATADIR_WRITE 
WAIT_EVENT_LOCK_FILE_CREATE_READ 
WAIT_EVENT_LOCK_FILE_CREATE_SYNC 
WAIT_EVENT_LOCK_FILE_CREATE_WRITE 
WAIT_EVENT_LOCK_FILE_RECHECKDATADIR_READ 
WAIT_EVENT_LOGICAL_REWRITE_CHECKPOINT_SYNC 
WAIT_EVENT_LOGICAL_REWRITE_MAPPING_SYNC 
WAIT_EVENT_LOGICAL_REWRITE_MAPPING_WRITE 
WAIT_EVENT_LOGICAL_REWRITE_SYNC 
WAIT_EVENT_LOGICAL_REWRITE_TRUNCATE 
WAIT_EVENT_LOGICAL_REWRITE_WRITE 
WAIT_EVENT_RELATION_MAP_READ 
WAIT_EVENT_RELATION_MAP_SYNC 
WAIT_EVENT_RELATION_MAP_WRITE 
WAIT_EVENT_REORDER_BUFFER_READ 
WAIT_EVENT_REORDER_BUFFER_WRITE 
WAIT_EVENT_REORDER_LOGICAL_MAPPING_READ 
WAIT_EVENT_REPLICATION_SLOT_READ 
WAIT_EVENT_REPLICATION_SLOT_RESTORE_SYNC 
WAIT_EVENT_REPLICATION_SLOT_SYNC 
WAIT_EVENT_REPLICATION_SLOT_WRITE 
WAIT_EVENT_SLRU_FLUSH_SYNC 
WAIT_EVENT_SLRU_READ 
WAIT_EVENT_SLRU_SYNC 
WAIT_EVENT_SLRU_WRITE 
WAIT_EVENT_SNAPBUILD_READ 
WAIT_EVENT_SNAPBUILD_SYNC 
WAIT_EVENT_SNAPBUILD_WRITE 
WAIT_EVENT_TIMELINE_HISTORY_FILE_SYNC 
WAIT_EVENT_TIMELINE_HISTORY_FILE_WRITE 
WAIT_EVENT_TIMELINE_HISTORY_READ 
WAIT_EVENT_TIMELINE_HISTORY_SYNC 
WAIT_EVENT_TIMELINE_HISTORY_WRITE 
WAIT_EVENT_TWOPHASE_FILE_READ 
WAIT_EVENT_TWOPHASE_FILE_SYNC 
WAIT_EVENT_TWOPHASE_FILE_WRITE 
WAIT_EVENT_WALSENDER_TIMELINE_HISTORY_READ 
WAIT_EVENT_WAL_BOOTSTRAP_SYNC 
WAIT_EVENT_WAL_BOOTSTRAP_WRITE 
WAIT_EVENT_WAL_COPY_READ 
WAIT_EVENT_WAL_COPY_SYNC 
WAIT_EVENT_WAL_COPY_WRITE 
WAIT_EVENT_WAL_INIT_SYNC 
WAIT_EVENT_WAL_INIT_WRITE 
WAIT_EVENT_WAL_READ 
WAIT_EVENT_WAL_SYNC 
WAIT_EVENT_WAL_SYNC_METHOD_ASSIGN 
WAIT_EVENT_WAL_WRITE 
WAIT_EVENT_LOGICAL_CHANGES_READ 
WAIT_EVENT_LOGICAL_CHANGES_WRITE 
WAIT_EVENT_LOGICAL_SUBXACT_READ 
WAIT_EVENT_LOGICAL_SUBXACT_WRITE 

Definition at line 1025 of file pgstat.h.

1026 {
1101 } WaitEventIO;
#define PG_WAIT_IO
Definition: pgstat.h:903
WaitEventIO
Definition: pgstat.h:1025

◆ WaitEventIPC

Enumerator
WAIT_EVENT_BACKUP_WAIT_WAL_ARCHIVE 
WAIT_EVENT_BGWORKER_SHUTDOWN 
WAIT_EVENT_BGWORKER_STARTUP 
WAIT_EVENT_BTREE_PAGE 
WAIT_EVENT_CHECKPOINT_DONE 
WAIT_EVENT_CHECKPOINT_START 
WAIT_EVENT_EXECUTE_GATHER 
WAIT_EVENT_HASH_BATCH_ALLOCATE 
WAIT_EVENT_HASH_BATCH_ELECT 
WAIT_EVENT_HASH_BATCH_LOAD 
WAIT_EVENT_HASH_BUILD_ALLOCATE 
WAIT_EVENT_HASH_BUILD_ELECT 
WAIT_EVENT_HASH_BUILD_HASH_INNER 
WAIT_EVENT_HASH_BUILD_HASH_OUTER 
WAIT_EVENT_HASH_GROW_BATCHES_ALLOCATE 
WAIT_EVENT_HASH_GROW_BATCHES_DECIDE 
WAIT_EVENT_HASH_GROW_BATCHES_ELECT 
WAIT_EVENT_HASH_GROW_BATCHES_FINISH 
WAIT_EVENT_HASH_GROW_BATCHES_REPARTITION 
WAIT_EVENT_HASH_GROW_BUCKETS_ALLOCATE 
WAIT_EVENT_HASH_GROW_BUCKETS_ELECT 
WAIT_EVENT_HASH_GROW_BUCKETS_REINSERT 
WAIT_EVENT_LOGICAL_SYNC_DATA 
WAIT_EVENT_LOGICAL_SYNC_STATE_CHANGE 
WAIT_EVENT_MQ_INTERNAL 
WAIT_EVENT_MQ_PUT_MESSAGE 
WAIT_EVENT_MQ_RECEIVE 
WAIT_EVENT_MQ_SEND 
WAIT_EVENT_PARALLEL_BITMAP_SCAN 
WAIT_EVENT_PARALLEL_CREATE_INDEX_SCAN 
WAIT_EVENT_PARALLEL_FINISH 
WAIT_EVENT_PROCARRAY_GROUP_UPDATE 
WAIT_EVENT_PROC_SIGNAL_BARRIER 
WAIT_EVENT_PROMOTE 
WAIT_EVENT_RECOVERY_CONFLICT_SNAPSHOT 
WAIT_EVENT_RECOVERY_CONFLICT_TABLESPACE 
WAIT_EVENT_RECOVERY_PAUSE 
WAIT_EVENT_REPLICATION_ORIGIN_DROP 
WAIT_EVENT_REPLICATION_SLOT_DROP 
WAIT_EVENT_SAFE_SNAPSHOT 
WAIT_EVENT_SYNC_REP 
WAIT_EVENT_XACT_GROUP_UPDATE 

Definition at line 958 of file pgstat.h.

959 {
1002 } WaitEventIPC;
WaitEventIPC
Definition: pgstat.h:958
#define PG_WAIT_IPC
Definition: pgstat.h:901

◆ WaitEventTimeout

Enumerator
WAIT_EVENT_BASE_BACKUP_THROTTLE 
WAIT_EVENT_PG_SLEEP 
WAIT_EVENT_RECOVERY_APPLY_DELAY 
WAIT_EVENT_RECOVERY_RETRIEVE_RETRY_INTERVAL 
WAIT_EVENT_VACUUM_DELAY 

Definition at line 1010 of file pgstat.h.

Function Documentation

◆ allow_immediate_pgstat_restart()

void allow_immediate_pgstat_restart ( void  )

Definition at line 844 of file pgstat.c.

References last_pgstat_start_time.

Referenced by HandleChildCrash().

845 {
847 }
static time_t last_pgstat_start_time
Definition: pgstat.c:189

◆ AtEOSubXact_PgStat()

void AtEOSubXact_PgStat ( bool  isCommit,
int  nestDepth 
)

Definition at line 2408 of file pgstat.c.

References Assert, PgStat_SubXactStatus::first, get_tabstat_stack_level(), PgStat_TableXactStatus::nest_level, PgStat_SubXactStatus::nest_level, PgStat_TableXactStatus::next, PgStat_TableXactStatus::parent, pfree(), pgstat_truncate_restore_counters(), pgstat_truncate_save_counters(), pgStatXactStack, PgStat_SubXactStatus::prev, PgStat_TableStatus::t_counts, PgStat_TableCounts::t_delta_dead_tuples, PgStat_TableCounts::t_tuples_deleted, PgStat_TableCounts::t_tuples_inserted, PgStat_TableCounts::t_tuples_updated, PgStat_TableStatus::trans, trans, PgStat_TableXactStatus::truncated, PgStat_TableXactStatus::tuples_deleted, PgStat_TableXactStatus::tuples_inserted, PgStat_TableXactStatus::tuples_updated, and PgStat_TableXactStatus::upper.

Referenced by AbortSubTransaction(), and CommitSubTransaction().

2409 {
2410  PgStat_SubXactStatus *xact_state;
2411 
2412  /*
2413  * Transfer transactional insert/update counts into the next higher
2414  * subtransaction state.
2415  */
2416  xact_state = pgStatXactStack;
2417  if (xact_state != NULL &&
2418  xact_state->nest_level >= nestDepth)
2419  {
2421  PgStat_TableXactStatus *next_trans;
2422 
2423  /* delink xact_state from stack immediately to simplify reuse case */
2424  pgStatXactStack = xact_state->prev;
2425 
2426  for (trans = xact_state->first; trans != NULL; trans = next_trans)
2427  {
2428  PgStat_TableStatus *tabstat;
2429 
2430  next_trans = trans->next;
2431  Assert(trans->nest_level == nestDepth);
2432  tabstat = trans->parent;
2433  Assert(tabstat->trans == trans);
2434  if (isCommit)
2435  {
2436  if (trans->upper && trans->upper->nest_level == nestDepth - 1)
2437  {
2438  if (trans->truncated)
2439  {
2440  /* propagate the truncate status one level up */
2442  /* replace upper xact stats with ours */
2443  trans->upper->tuples_inserted = trans->tuples_inserted;
2444  trans->upper->tuples_updated = trans->tuples_updated;
2445  trans->upper->tuples_deleted = trans->tuples_deleted;
2446  }
2447  else
2448  {
2449  trans->upper->tuples_inserted += trans->tuples_inserted;
2450  trans->upper->tuples_updated += trans->tuples_updated;
2451  trans->upper->tuples_deleted += trans->tuples_deleted;
2452  }
2453  tabstat->trans = trans->upper;
2454  pfree(trans);
2455  }
2456  else
2457  {
2458  /*
2459  * When there isn't an immediate parent state, we can just
2460  * reuse the record instead of going through a
2461  * palloc/pfree pushup (this works since it's all in
2462  * TopTransactionContext anyway). We have to re-link it
2463  * into the parent level, though, and that might mean
2464  * pushing a new entry into the pgStatXactStack.
2465  */
2466  PgStat_SubXactStatus *upper_xact_state;
2467 
2468  upper_xact_state = get_tabstat_stack_level(nestDepth - 1);
2469  trans->next = upper_xact_state->first;
2470  upper_xact_state->first = trans;
2471  trans->nest_level = nestDepth - 1;
2472  }
2473  }
2474  else
2475  {
2476  /*
2477  * On abort, update top-level tabstat counts, then forget the
2478  * subtransaction
2479  */
2480 
2481  /* first restore values obliterated by truncate */
2483  /* count attempted actions regardless of commit/abort */
2484  tabstat->t_counts.t_tuples_inserted += trans->tuples_inserted;
2485  tabstat->t_counts.t_tuples_updated += trans->tuples_updated;
2486  tabstat->t_counts.t_tuples_deleted += trans->tuples_deleted;
2487  /* inserted tuples are dead, deleted tuples are unaffected */
2488  tabstat->t_counts.t_delta_dead_tuples +=
2489  trans->tuples_inserted + trans->tuples_updated;
2490  tabstat->trans = trans->upper;
2491  pfree(trans);
2492  }
2493  }
2494  pfree(xact_state);
2495  }
2496 }
PgStat_Counter tuples_updated
Definition: pgstat.h:186
struct PgStat_TableXactStatus * next
Definition: pgstat.h:197
PgStat_TableCounts t_counts
Definition: pgstat.h:176
static PgStat_SubXactStatus * get_tabstat_stack_level(int nest_level)
Definition: pgstat.c:2126
void pfree(void *pointer)
Definition: mcxt.c:1057
PgStat_Counter t_tuples_updated
Definition: pgstat.h:122
static void pgstat_truncate_restore_counters(PgStat_TableXactStatus *trans)
Definition: pgstat.c:2262
PgStat_Counter tuples_inserted
Definition: pgstat.h:185
PgStat_Counter t_delta_dead_tuples
Definition: pgstat.h:128
struct PgStat_TableXactStatus * upper
Definition: pgstat.h:194
PgStat_Counter t_tuples_deleted
Definition: pgstat.h:123
PgStat_Counter tuples_deleted
Definition: pgstat.h:187
struct PgStat_SubXactStatus * prev
Definition: pgstat.c:251
#define Assert(condition)
Definition: c.h:804
static PgStat_SubXactStatus * pgStatXactStack
Definition: pgstat.c:255
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:175
static zic_t trans[TZ_MAX_LEAPS]
Definition: zic.c:400
PgStat_TableXactStatus * first
Definition: pgstat.c:252
static void pgstat_truncate_save_counters(PgStat_TableXactStatus *trans)
Definition: pgstat.c:2247
PgStat_Counter t_tuples_inserted
Definition: pgstat.h:121
PgStat_TableStatus * parent
Definition: pgstat.h:195

◆ AtEOXact_PgStat()

void AtEOXact_PgStat ( bool  isCommit,
bool  parallel 
)

Definition at line 2321 of file pgstat.c.

References Assert, PgStat_SubXactStatus::first, PgStat_TableXactStatus::nest_level, PgStat_SubXactStatus::nest_level, PgStat_TableXactStatus::next, PgStat_TableXactStatus::parent, pgstat_clear_snapshot(), pgstat_truncate_restore_counters(), pgStatXactCommit, pgStatXactRollback, pgStatXactStack, PgStat_SubXactStatus::prev, PgStat_TableCounts::t_changed_tuples, PgStat_TableStatus::t_counts, PgStat_TableCounts::t_delta_dead_tuples, PgStat_TableCounts::t_delta_live_tuples, PgStat_TableCounts::t_truncated, PgStat_TableCounts::t_tuples_deleted, PgStat_TableCounts::t_tuples_inserted, PgStat_TableCounts::t_tuples_updated, PgStat_TableStatus::trans, trans, PgStat_TableXactStatus::truncated, PgStat_TableXactStatus::tuples_deleted, PgStat_TableXactStatus::tuples_inserted, PgStat_TableXactStatus::tuples_updated, and PgStat_TableXactStatus::upper.

Referenced by AbortTransaction(), CommitTransaction(), and FinishPreparedTransaction().

2322 {
2323  PgStat_SubXactStatus *xact_state;
2324 
2325  /* Don't count parallel worker transaction stats */
2326  if (!parallel)
2327  {
2328  /*
2329  * Count transaction commit or abort. (We use counters, not just
2330  * bools, in case the reporting message isn't sent right away.)
2331  */
2332  if (isCommit)
2333  pgStatXactCommit++;
2334  else
2336  }
2337 
2338  /*
2339  * Transfer transactional insert/update counts into the base tabstat
2340  * entries. We don't bother to free any of the transactional state, since
2341  * it's all in TopTransactionContext and will go away anyway.
2342  */
2343  xact_state = pgStatXactStack;
2344  if (xact_state != NULL)
2345  {
2347 
2348  Assert(xact_state->nest_level == 1);
2349  Assert(xact_state->prev == NULL);
2350  for (trans = xact_state->first; trans != NULL; trans = trans->next)
2351  {
2352  PgStat_TableStatus *tabstat;
2353 
2354  Assert(trans->nest_level == 1);
2355  Assert(trans->upper == NULL);
2356  tabstat = trans->parent;
2357  Assert(tabstat->trans == trans);
2358  /* restore pre-truncate stats (if any) in case of aborted xact */
2359  if (!isCommit)
2361  /* count attempted actions regardless of commit/abort */
2362  tabstat->t_counts.t_tuples_inserted += trans->tuples_inserted;
2363  tabstat->t_counts.t_tuples_updated += trans->tuples_updated;
2364  tabstat->t_counts.t_tuples_deleted += trans->tuples_deleted;
2365  if (isCommit)
2366  {
2367  tabstat->t_counts.t_truncated = trans->truncated;
2368  if (trans->truncated)
2369  {
2370  /* forget live/dead stats seen by backend thus far */
2371  tabstat->t_counts.t_delta_live_tuples = 0;
2372  tabstat->t_counts.t_delta_dead_tuples = 0;
2373  }
2374  /* insert adds a live tuple, delete removes one */
2375  tabstat->t_counts.t_delta_live_tuples +=
2376  trans->tuples_inserted - trans->tuples_deleted;
2377  /* update and delete each create a dead tuple */
2378  tabstat->t_counts.t_delta_dead_tuples +=
2379  trans->tuples_updated + trans->tuples_deleted;
2380  /* insert, update, delete each count as one change event */
2381  tabstat->t_counts.t_changed_tuples +=
2382  trans->tuples_inserted + trans->tuples_updated +
2383  trans->tuples_deleted;
2384  }
2385  else
2386  {
2387  /* inserted tuples are dead, deleted tuples are unaffected */
2388  tabstat->t_counts.t_delta_dead_tuples +=
2389  trans->tuples_inserted + trans->tuples_updated;
2390  /* an aborted xact generates no changed_tuple events */
2391  }
2392  tabstat->trans = NULL;
2393  }
2394  }
2395  pgStatXactStack = NULL;
2396 
2397  /* Make sure any stats snapshot is thrown away */
2399 }
PgStat_Counter t_delta_live_tuples
Definition: pgstat.h:127
PgStat_Counter tuples_updated
Definition: pgstat.h:186
static int pgStatXactCommit
Definition: pgstat.c:257
struct PgStat_TableXactStatus * next
Definition: pgstat.h:197
PgStat_TableCounts t_counts
Definition: pgstat.h:176
PgStat_Counter t_tuples_updated
Definition: pgstat.h:122
static void pgstat_truncate_restore_counters(PgStat_TableXactStatus *trans)
Definition: pgstat.c:2262
static int pgStatXactRollback
Definition: pgstat.c:258
PgStat_Counter tuples_inserted
Definition: pgstat.h:185
PgStat_Counter t_delta_dead_tuples
Definition: pgstat.h:128
struct PgStat_TableXactStatus * upper
Definition: pgstat.h:194
PgStat_Counter t_tuples_deleted
Definition: pgstat.h:123
PgStat_Counter tuples_deleted
Definition: pgstat.h:187
struct PgStat_SubXactStatus * prev
Definition: pgstat.c:251
PgStat_Counter t_changed_tuples
Definition: pgstat.h:129
#define Assert(condition)
Definition: c.h:804
void pgstat_clear_snapshot(void)
Definition: pgstat.c:6270
static PgStat_SubXactStatus * pgStatXactStack
Definition: pgstat.c:255
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:175
static zic_t trans[TZ_MAX_LEAPS]
Definition: zic.c:400
PgStat_TableXactStatus * first
Definition: pgstat.c:252
PgStat_Counter t_tuples_inserted
Definition: pgstat.h:121
PgStat_TableStatus * parent
Definition: pgstat.h:195

◆ AtPrepare_PgStat()

void AtPrepare_PgStat ( void  )

Definition at line 2507 of file pgstat.c.

References Assert, PgStat_TableXactStatus::deleted_pre_trunc, TwoPhasePgStatRecord::deleted_pre_trunc, PgStat_SubXactStatus::first, PgStat_TableXactStatus::inserted_pre_trunc, TwoPhasePgStatRecord::inserted_pre_trunc, PgStat_TableXactStatus::nest_level, PgStat_SubXactStatus::nest_level, PgStat_TableXactStatus::next, PgStat_TableXactStatus::parent, pgStatXactStack, PgStat_SubXactStatus::prev, RegisterTwoPhaseRecord(), PgStat_TableStatus::t_id, TwoPhasePgStatRecord::t_id, PgStat_TableStatus::t_shared, TwoPhasePgStatRecord::t_shared, TwoPhasePgStatRecord::t_truncated, PgStat_TableStatus::trans, trans, PgStat_TableXactStatus::truncated, PgStat_TableXactStatus::tuples_deleted, TwoPhasePgStatRecord::tuples_deleted, PgStat_TableXactStatus::tuples_inserted, TwoPhasePgStatRecord::tuples_inserted, PgStat_TableXactStatus::tuples_updated, TwoPhasePgStatRecord::tuples_updated, TWOPHASE_RM_PGSTAT_ID, PgStat_TableXactStatus::updated_pre_trunc, TwoPhasePgStatRecord::updated_pre_trunc, and PgStat_TableXactStatus::upper.

Referenced by PrepareTransaction().

2508 {
2509  PgStat_SubXactStatus *xact_state;
2510 
2511  xact_state = pgStatXactStack;
2512  if (xact_state != NULL)
2513  {
2515 
2516  Assert(xact_state->nest_level == 1);
2517  Assert(xact_state->prev == NULL);
2518  for (trans = xact_state->first; trans != NULL; trans = trans->next)
2519  {
2520  PgStat_TableStatus *tabstat;
2521  TwoPhasePgStatRecord record;
2522 
2523  Assert(trans->nest_level == 1);
2524  Assert(trans->upper == NULL);
2525  tabstat = trans->parent;
2526  Assert(tabstat->trans == trans);
2527 
2528  record.tuples_inserted = trans->tuples_inserted;
2529  record.tuples_updated = trans->tuples_updated;
2530  record.tuples_deleted = trans->tuples_deleted;
2531  record.inserted_pre_trunc = trans->inserted_pre_trunc;
2532  record.updated_pre_trunc = trans->updated_pre_trunc;
2533  record.deleted_pre_trunc = trans->deleted_pre_trunc;
2534  record.t_id = tabstat->t_id;
2535  record.t_shared = tabstat->t_shared;
2536  record.t_truncated = trans->truncated;
2537 
2539  &record, sizeof(TwoPhasePgStatRecord));
2540  }
2541  }
2542 }
PgStat_Counter tuples_updated
Definition: pgstat.h:186
struct PgStat_TableXactStatus * next
Definition: pgstat.h:197
PgStat_Counter deleted_pre_trunc
Definition: pgstat.h:191
PgStat_Counter deleted_pre_trunc
Definition: pgstat.c:273
void RegisterTwoPhaseRecord(TwoPhaseRmgrId rmid, uint16 info, const void *data, uint32 len)
Definition: twophase.c:1182
PgStat_Counter tuples_inserted
Definition: pgstat.h:185
PgStat_Counter updated_pre_trunc
Definition: pgstat.c:272
PgStat_Counter inserted_pre_trunc
Definition: pgstat.c:271
struct PgStat_TableXactStatus * upper
Definition: pgstat.h:194
PgStat_Counter tuples_updated
Definition: pgstat.c:269
PgStat_Counter tuples_deleted
Definition: pgstat.h:187
struct PgStat_SubXactStatus * prev
Definition: pgstat.c:251
#define Assert(condition)
Definition: c.h:804
PgStat_Counter inserted_pre_trunc
Definition: pgstat.h:189
PgStat_Counter tuples_inserted
Definition: pgstat.c:268
static PgStat_SubXactStatus * pgStatXactStack
Definition: pgstat.c:255
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:175
PgStat_Counter tuples_deleted
Definition: pgstat.c:270
#define TWOPHASE_RM_PGSTAT_ID
Definition: twophase_rmgr.h:26
PgStat_Counter updated_pre_trunc
Definition: pgstat.h:190
static zic_t trans[TZ_MAX_LEAPS]
Definition: zic.c:400
PgStat_TableXactStatus * first
Definition: pgstat.c:252
PgStat_TableStatus * parent
Definition: pgstat.h:195

◆ BackendStatusShmemSize()

Size BackendStatusShmemSize ( void  )

Definition at line 2928 of file pgstat.c.

References add_size(), mul_size(), NAMEDATALEN, NumBackendStatSlots, and pgstat_track_activity_query_size.

Referenced by CreateSharedMemoryAndSemaphores().

2929 {
2930  Size size;
2931 
2932  /* BackendStatusArray: */
2933  size = mul_size(sizeof(PgBackendStatus), NumBackendStatSlots);
2934  /* BackendAppnameBuffer: */
2935  size = add_size(size,
2937  /* BackendClientHostnameBuffer: */
2938  size = add_size(size,
2940  /* BackendActivityBuffer: */
2941  size = add_size(size,
2943 #ifdef USE_SSL
2944  /* BackendSslStatusBuffer: */
2945  size = add_size(size,
2947 #endif
2948 #ifdef ENABLE_GSS
2949  /* BackendGssStatusBuffer: */
2950  size = add_size(size,
2952 #endif
2953  return size;
2954 }
#define NumBackendStatSlots
Definition: pgstat.c:119
#define NAMEDATALEN
int pgstat_track_activity_query_size
Definition: pgstat.c:129
Size mul_size(Size s1, Size s2)
Definition: shmem.c:519
Size add_size(Size s1, Size s2)
Definition: shmem.c:502
size_t Size
Definition: c.h:540

◆ CreateSharedBackendStatus()

void CreateSharedBackendStatus ( void  )

Definition at line 2961 of file pgstat.c.

References BackendActivityBuffer, BackendActivityBufferSize, BackendAppnameBuffer, BackendClientHostnameBuffer, i, MemSet, mul_size(), NAMEDATALEN, NumBackendStatSlots, pgstat_track_activity_query_size, ShmemInitStruct(), PgBackendStatus::st_activity_raw, PgBackendStatus::st_appname, PgBackendStatus::st_clienthostname, PgBackendStatus::st_gssstatus, and PgBackendStatus::st_sslstatus.

Referenced by CreateSharedMemoryAndSemaphores().

2962 {
2963  Size size;
2964  bool found;
2965  int i;
2966  char *buffer;
2967 
2968  /* Create or attach to the shared array */
2969  size = mul_size(sizeof(PgBackendStatus), NumBackendStatSlots);
2971  ShmemInitStruct("Backend Status Array", size, &found);
2972 
2973  if (!found)
2974  {
2975  /*
2976  * We're the first - initialize.
2977  */
2978  MemSet(BackendStatusArray, 0, size);
2979  }
2980 
2981  /* Create or attach to the shared appname buffer */
2983  BackendAppnameBuffer = (char *)
2984  ShmemInitStruct("Backend Application Name Buffer", size, &found);
2985 
2986  if (!found)
2987  {
2988  MemSet(BackendAppnameBuffer, 0, size);
2989 
2990  /* Initialize st_appname pointers. */
2991  buffer = BackendAppnameBuffer;
2992  for (i = 0; i < NumBackendStatSlots; i++)
2993  {
2994  BackendStatusArray[i].st_appname = buffer;
2995  buffer += NAMEDATALEN;
2996  }
2997  }
2998 
2999  /* Create or attach to the shared client hostname buffer */
3001  BackendClientHostnameBuffer = (char *)
3002  ShmemInitStruct("Backend Client Host Name Buffer", size, &found);
3003 
3004  if (!found)
3005  {
3007 
3008  /* Initialize st_clienthostname pointers. */
3009  buffer = BackendClientHostnameBuffer;
3010  for (i = 0; i < NumBackendStatSlots; i++)
3011  {
3013  buffer += NAMEDATALEN;
3014  }
3015  }
3016 
3017  /* Create or attach to the shared activity buffer */
3020  BackendActivityBuffer = (char *)
3021  ShmemInitStruct("Backend Activity Buffer",
3023  &found);
3024 
3025  if (!found)
3026  {
3028 
3029  /* Initialize st_activity pointers. */
3030  buffer = BackendActivityBuffer;
3031  for (i = 0; i < NumBackendStatSlots; i++)
3032  {
3035  }
3036  }
3037 
3038 #ifdef USE_SSL
3039  /* Create or attach to the shared SSL status buffer */
3041  BackendSslStatusBuffer = (PgBackendSSLStatus *)
3042  ShmemInitStruct("Backend SSL Status Buffer", size, &found);
3043 
3044  if (!found)
3045  {
3046  PgBackendSSLStatus *ptr;
3047 
3048  MemSet(BackendSslStatusBuffer, 0, size);
3049 
3050  /* Initialize st_sslstatus pointers. */
3051  ptr = BackendSslStatusBuffer;
3052  for (i = 0; i < NumBackendStatSlots; i++)
3053  {
3055  ptr++;
3056  }
3057  }
3058 #endif
3059 
3060 #ifdef ENABLE_GSS
3061  /* Create or attach to the shared GSSAPI status buffer */
3063  BackendGssStatusBuffer = (PgBackendGSSStatus *)
3064  ShmemInitStruct("Backend GSS Status Buffer", size, &found);
3065 
3066  if (!found)
3067  {
3068  PgBackendGSSStatus *ptr;
3069 
3070  MemSet(BackendGssStatusBuffer, 0, size);
3071 
3072  /* Initialize st_gssstatus pointers. */
3073  ptr = BackendGssStatusBuffer;
3074  for (i = 0; i < NumBackendStatSlots; i++)
3075  {
3077  ptr++;
3078  }
3079  }
3080 #endif
3081 }
static PgBackendStatus * BackendStatusArray
Definition: pgstat.c:2910
static char * BackendActivityBuffer
Definition: pgstat.c:2914
static Size BackendActivityBufferSize
Definition: pgstat.c:2915
#define MemSet(start, val, len)
Definition: c.h:1008
#define NumBackendStatSlots
Definition: pgstat.c:119
char * st_clienthostname
Definition: pgstat.h:1218
#define NAMEDATALEN
static char * BackendAppnameBuffer
Definition: pgstat.c:2912
void * ShmemInitStruct(const char *name, Size size, bool *foundPtr)
Definition: shmem.c:396
char * st_activity_raw
Definition: pgstat.h:1241
int pgstat_track_activity_query_size
Definition: pgstat.c:129
char * st_appname
Definition: pgstat.h:1232
Size mul_size(Size s1, Size s2)
Definition: shmem.c:519
size_t Size
Definition: c.h:540
int i
PgBackendSSLStatus * st_sslstatus
Definition: pgstat.h:1222
PgBackendGSSStatus * st_gssstatus
Definition: pgstat.h:1226
static char * BackendClientHostnameBuffer
Definition: pgstat.c:2913

◆ find_funcstat_entry()

PgStat_BackendFunctionEntry* find_funcstat_entry ( Oid  func_id)

Definition at line 1906 of file pgstat.c.

References HASH_FIND, and hash_search().

Referenced by pg_stat_get_xact_function_calls(), pg_stat_get_xact_function_self_time(), and pg_stat_get_xact_function_total_time().

1907 {
1908  if (pgStatFunctions == NULL)
1909  return NULL;
1910 
1912  (void *) &func_id,
1913  HASH_FIND, NULL);
1914 }
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:954
static HTAB * pgStatFunctions
Definition: pgstat.c:233

◆ find_tabstat_entry()

PgStat_TableStatus* find_tabstat_entry ( Oid  rel_id)

Definition at line 2106 of file pgstat.c.

References HASH_FIND, hash_search(), and TabStatHashEntry::tsa_entry.

Referenced by pg_stat_get_xact_blocks_fetched(), pg_stat_get_xact_blocks_hit(), pg_stat_get_xact_numscans(), pg_stat_get_xact_tuples_deleted(), pg_stat_get_xact_tuples_fetched(), pg_stat_get_xact_tuples_hot_updated(), pg_stat_get_xact_tuples_inserted(), pg_stat_get_xact_tuples_returned(), and pg_stat_get_xact_tuples_updated().

2107 {
2108  TabStatHashEntry *hash_entry;
2109 
2110  /* If hashtable doesn't exist, there are no entries at all */
2111  if (!pgStatTabHash)
2112  return NULL;
2113 
2114  hash_entry = hash_search(pgStatTabHash, &rel_id, HASH_FIND, NULL);
2115  if (!hash_entry)
2116  return NULL;
2117 
2118  /* Note that this step could also return NULL, but that's correct */
2119  return hash_entry->tsa_entry;
2120 }
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:954
static HTAB * pgStatTabHash
Definition: pgstat.c:227
PgStat_TableStatus * tsa_entry
Definition: pgstat.c:221

◆ pgstat_bestart()

void pgstat_bestart ( void  )

Definition at line 3145 of file pgstat.c.

References application_name, Assert, B_BACKEND, B_BG_WORKER, B_WAL_SENDER, be_gssapi_get_auth(), be_gssapi_get_enc(), be_gssapi_get_princ(), be_tls_get_cipher(), be_tls_get_cipher_bits(), be_tls_get_compression(), be_tls_get_peer_issuer_name(), be_tls_get_peer_serial(), be_tls_get_peer_subject_name(), be_tls_get_version(), GetSessionUserId(), Port::gss, PgBackendGSSStatus::gss_auth, PgBackendGSSStatus::gss_enc, PgBackendGSSStatus::gss_princ, InvalidOid, MemSet, MyBackendType, MyBEEntry, MyDatabaseId, MyProcPid, MyProcPort, MyStartTimestamp, NAMEDATALEN, PGSTAT_BEGIN_WRITE_ACTIVITY, PGSTAT_END_WRITE_ACTIVITY, pgstat_report_appname(), pgstat_track_activity_query_size, PROGRESS_COMMAND_INVALID, Port::raddr, Port::remote_hostname, PgBackendSSLStatus::ssl_bits, PgBackendSSLStatus::ssl_cipher, PgBackendSSLStatus::ssl_client_dn, PgBackendSSLStatus::ssl_client_serial, PgBackendSSLStatus::ssl_compression, Port::ssl_in_use, PgBackendSSLStatus::ssl_issuer_dn, PgBackendSSLStatus::ssl_version, PgBackendStatus::st_activity_raw, PgBackendStatus::st_activity_start_timestamp, PgBackendStatus::st_appname, PgBackendStatus::st_backendType, PgBackendStatus::st_changecount, PgBackendStatus::st_clientaddr, PgBackendStatus::st_clienthostname, PgBackendStatus::st_databaseid, PgBackendStatus::st_gss, PgBackendStatus::st_gssstatus, PgBackendStatus::st_proc_start_timestamp, PgBackendStatus::st_procpid, PgBackendStatus::st_progress_command, PgBackendStatus::st_progress_command_target, PgBackendStatus::st_ssl, PgBackendStatus::st_sslstatus, PgBackendStatus::st_state, PgBackendStatus::st_state_start_timestamp, PgBackendStatus::st_userid, PgBackendStatus::st_xact_start_timestamp, STATE_UNDEFINED, strlcpy(), and unvolatize.

Referenced by AuxiliaryProcessMain(), and InitPostgres().

3146 {
3147  volatile PgBackendStatus *vbeentry = MyBEEntry;
3148  PgBackendStatus lbeentry;
3149 #ifdef USE_SSL
3150  PgBackendSSLStatus lsslstatus;
3151 #endif
3152 #ifdef ENABLE_GSS
3153  PgBackendGSSStatus lgssstatus;
3154 #endif
3155 
3156  /* pgstats state must be initialized from pgstat_initialize() */
3157  Assert(vbeentry != NULL);
3158 
3159  /*
3160  * To minimize the time spent modifying the PgBackendStatus entry, and
3161  * avoid risk of errors inside the critical section, we first copy the
3162  * shared-memory struct to a local variable, then modify the data in the
3163  * local variable, then copy the local variable back to shared memory.
3164  * Only the last step has to be inside the critical section.
3165  *
3166  * Most of the data we copy from shared memory is just going to be
3167  * overwritten, but the struct's not so large that it's worth the
3168  * maintenance hassle to copy only the needful fields.
3169  */
3170  memcpy(&lbeentry,
3171  unvolatize(PgBackendStatus *, vbeentry),
3172  sizeof(PgBackendStatus));
3173 
3174  /* These structs can just start from zeroes each time, though */
3175 #ifdef USE_SSL
3176  memset(&lsslstatus, 0, sizeof(lsslstatus));
3177 #endif
3178 #ifdef ENABLE_GSS
3179  memset(&lgssstatus, 0, sizeof(lgssstatus));
3180 #endif
3181 
3182  /*
3183  * Now fill in all the fields of lbeentry, except for strings that are
3184  * out-of-line data. Those have to be handled separately, below.
3185  */
3186  lbeentry.st_procpid = MyProcPid;
3187  lbeentry.st_backendType = MyBackendType;
3189  lbeentry.st_activity_start_timestamp = 0;
3190  lbeentry.st_state_start_timestamp = 0;
3191  lbeentry.st_xact_start_timestamp = 0;
3192  lbeentry.st_databaseid = MyDatabaseId;
3193 
3194  /* We have userid for client-backends, wal-sender and bgworker processes */
3195  if (lbeentry.st_backendType == B_BACKEND
3196  || lbeentry.st_backendType == B_WAL_SENDER
3197  || lbeentry.st_backendType == B_BG_WORKER)
3198  lbeentry.st_userid = GetSessionUserId();
3199  else
3200  lbeentry.st_userid = InvalidOid;
3201 
3202  /*
3203  * We may not have a MyProcPort (eg, if this is the autovacuum process).
3204  * If so, use all-zeroes client address, which is dealt with specially in
3205  * pg_stat_get_backend_client_addr and pg_stat_get_backend_client_port.
3206  */
3207  if (MyProcPort)
3208  memcpy(&lbeentry.st_clientaddr, &MyProcPort->raddr,
3209  sizeof(lbeentry.st_clientaddr));
3210  else
3211  MemSet(&lbeentry.st_clientaddr, 0, sizeof(lbeentry.st_clientaddr));
3212 
3213 #ifdef USE_SSL
3215  {
3216  lbeentry.st_ssl = true;
3224  }
3225  else
3226  {
3227  lbeentry.st_ssl = false;
3228  }
3229 #else
3230  lbeentry.st_ssl = false;
3231 #endif
3232 
3233 #ifdef ENABLE_GSS
3234  if (MyProcPort && MyProcPort->gss != NULL)
3235  {
3236  const char *princ = be_gssapi_get_princ(MyProcPort);
3237 
3238  lbeentry.st_gss = true;
3239  lgssstatus.gss_auth = be_gssapi_get_auth(MyProcPort);
3240  lgssstatus.gss_enc = be_gssapi_get_enc(MyProcPort);
3241  if (princ)
3242  strlcpy(lgssstatus.gss_princ, princ, NAMEDATALEN);
3243  }
3244  else
3245  {
3246  lbeentry.st_gss = false;
3247  }
3248 #else
3249  lbeentry.st_gss = false;
3250 #endif
3251 
3252  lbeentry.st_state = STATE_UNDEFINED;
3255 
3256  /*
3257  * we don't zero st_progress_param here to save cycles; nobody should
3258  * examine it until st_progress_command has been set to something other
3259  * than PROGRESS_COMMAND_INVALID
3260  */
3261 
3262  /*
3263  * We're ready to enter the critical section that fills the shared-memory
3264  * status entry. We follow the protocol of bumping st_changecount before
3265  * and after; and make sure it's even afterwards. We use a volatile
3266  * pointer here to ensure the compiler doesn't try to get cute.
3267  */
3268  PGSTAT_BEGIN_WRITE_ACTIVITY(vbeentry);
3269 
3270  /* make sure we'll memcpy the same st_changecount back */
3271  lbeentry.st_changecount = vbeentry->st_changecount;
3272 
3273  memcpy(unvolatize(PgBackendStatus *, vbeentry),
3274  &lbeentry,
3275  sizeof(PgBackendStatus));
3276 
3277  /*
3278  * We can write the out-of-line strings and structs using the pointers
3279  * that are in lbeentry; this saves some de-volatilizing messiness.
3280  */
3281  lbeentry.st_appname[0] = '\0';
3284  NAMEDATALEN);
3285  else
3286  lbeentry.st_clienthostname[0] = '\0';
3287  lbeentry.st_activity_raw[0] = '\0';
3288  /* Also make sure the last byte in each string area is always 0 */
3289  lbeentry.st_appname[NAMEDATALEN - 1] = '\0';
3290  lbeentry.st_clienthostname[NAMEDATALEN - 1] = '\0';
3292 
3293 #ifdef USE_SSL
3294  memcpy(lbeentry.st_sslstatus, &lsslstatus, sizeof(PgBackendSSLStatus));
3295 #endif
3296 #ifdef ENABLE_GSS
3297  memcpy(lbeentry.st_gssstatus, &lgssstatus, sizeof(PgBackendGSSStatus));
3298 #endif
3299 
3300  PGSTAT_END_WRITE_ACTIVITY(vbeentry);
3301 
3302  /* Update app name to current GUC setting */
3303  if (application_name)
3305 }
char ssl_issuer_dn[NAMEDATALEN]
Definition: pgstat.h:1149
char gss_princ[NAMEDATALEN]
Definition: pgstat.h:1163
bool ssl_compression
Definition: pgstat.h:1138
char ssl_cipher[NAMEDATALEN]
Definition: pgstat.h:1140
Oid st_progress_command_target
Definition: pgstat.h:1253
int MyProcPid
Definition: globals.c:41
struct Port * MyProcPort
Definition: globals.c:44
const char * be_gssapi_get_princ(Port *port)
BackendType MyBackendType
Definition: miscinit.c:62
TimestampTz st_activity_start_timestamp
Definition: pgstat.h:1211
char ssl_client_dn[NAMEDATALEN]
Definition: pgstat.h:1141
char ssl_version[NAMEDATALEN]
Definition: pgstat.h:1139
SockAddr st_clientaddr
Definition: pgstat.h:1217
#define MemSet(start, val, len)
Definition: c.h:1008
bool ssl_in_use
Definition: libpq-be.h:191
ProgressCommandType st_progress_command
Definition: pgstat.h:1252
char ssl_client_serial[NAMEDATALEN]
Definition: pgstat.h:1147
BackendState st_state
Definition: pgstat.h:1229
char * st_clienthostname
Definition: pgstat.h:1218
Oid GetSessionUserId(void)
Definition: miscinit.c:512
Oid st_databaseid
Definition: pgstat.h:1215
#define NAMEDATALEN
char * remote_hostname
Definition: libpq-be.h:128
SockAddr raddr
Definition: libpq-be.h:126
bool be_tls_get_compression(Port *port)
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2911
#define PGSTAT_END_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1293
char * st_activity_raw
Definition: pgstat.h:1241
int pgstat_track_activity_query_size
Definition: pgstat.c:129
TimestampTz st_state_start_timestamp
Definition: pgstat.h:1212
char * st_appname
Definition: pgstat.h:1232
bool be_gssapi_get_enc(Port *port)
TimestampTz MyStartTimestamp
Definition: globals.c:43
int be_tls_get_cipher_bits(Port *port)
Oid MyDatabaseId
Definition: globals.c:86
BackendType st_backendType
Definition: pgstat.h:1206
void pgstat_report_appname(const char *appname)
Definition: pgstat.c:3552
#define InvalidOid
Definition: postgres_ext.h:36
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:45
#define Assert(condition)
Definition: c.h:804
const char * be_tls_get_version(Port *port)
void be_tls_get_peer_issuer_name(Port *port, char *ptr, size_t len)
char * application_name
Definition: guc.c:565
void be_tls_get_peer_subject_name(Port *port, char *ptr, size_t len)
void * gss
Definition: libpq-be.h:185
#define unvolatize(underlying_type, expr)
Definition: c.h:1245
void be_tls_get_peer_serial(Port *port, char *ptr, size_t len)
TimestampTz st_xact_start_timestamp
Definition: pgstat.h:1210
int st_changecount
Definition: pgstat.h:1200
const char * be_tls_get_cipher(Port *port)
TimestampTz st_proc_start_timestamp
Definition: pgstat.h:1209
PgBackendSSLStatus * st_sslstatus
Definition: pgstat.h:1222
#define PGSTAT_BEGIN_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1286
PgBackendGSSStatus * st_gssstatus
Definition: pgstat.h:1226
bool be_gssapi_get_auth(Port *port)

◆ pgstat_clear_snapshot()

void pgstat_clear_snapshot ( void  )

Definition at line 6270 of file pgstat.c.

References localNumBackends, and MemoryContextDelete().

Referenced by AtEOXact_PgStat(), autovac_refresh_stats(), AutoVacLauncherMain(), pg_stat_clear_snapshot(), and PostPrepare_PgStat().

6271 {
6272  /* Release memory, if any was allocated */
6273  if (pgStatLocalContext)
6275 
6276  /* Reset variables */
6277  pgStatLocalContext = NULL;
6278  pgStatDBHash = NULL;
6279  localBackendStatusTable = NULL;
6280  localNumBackends = 0;
6281 }
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:212
static LocalPgBackendStatus * localBackendStatusTable
Definition: pgstat.c:286
static HTAB * pgStatDBHash
Definition: pgstat.c:283
static int localNumBackends
Definition: pgstat.c:289
static MemoryContext pgStatLocalContext
Definition: pgstat.c:282

◆ pgstat_clip_activity()

char* pgstat_clip_activity ( const char *  raw_activity)

Definition at line 7220 of file pgstat.c.

References cliplen(), pg_mbcliplen(), pgstat_track_activity_query_size, and pnstrdup().

Referenced by pg_stat_get_activity(), pg_stat_get_backend_activity(), and pgstat_get_backend_current_activity().

7221 {
7222  char *activity;
7223  int rawlen;
7224  int cliplen;
7225 
7226  /*
7227  * Some callers, like pgstat_get_backend_current_activity(), do not
7228  * guarantee that the buffer isn't concurrently modified. We try to take
7229  * care that the buffer is always terminated by a NUL byte regardless, but
7230  * let's still be paranoid about the string's length. In those cases the
7231  * underlying buffer is guaranteed to be pgstat_track_activity_query_size
7232  * large.
7233  */
7234  activity = pnstrdup(raw_activity, pgstat_track_activity_query_size - 1);
7235 
7236  /* now double-guaranteed to be NUL terminated */
7237  rawlen = strlen(activity);
7238 
7239  /*
7240  * All supported server-encodings make it possible to determine the length
7241  * of a multi-byte character from its first byte (this is not the case for
7242  * client encodings, see GB18030). As st_activity is always stored using
7243  * server encoding, this allows us to perform multi-byte aware truncation,
7244  * even if the string earlier was truncated in the middle of a multi-byte
7245  * character.
7246  */
7247  cliplen = pg_mbcliplen(activity, rawlen,
7249 
7250  activity[cliplen] = '\0';
7251 
7252  return activity;
7253 }
char * pnstrdup(const char *in, Size len)
Definition: mcxt.c:1198
int pg_mbcliplen(const char *mbstr, int len, int limit)
Definition: mbutils.c:967
int pgstat_track_activity_query_size
Definition: pgstat.c:129
static int cliplen(const char *str, int len, int limit)
Definition: mbutils.c:1034

◆ pgstat_count_heap_delete()

void pgstat_count_heap_delete ( Relation  rel)

Definition at line 2221 of file pgstat.c.

References add_tabstat_xact_level(), GetCurrentTransactionNestLevel(), PgStat_TableXactStatus::nest_level, RelationData::pgstat_info, PgStat_TableStatus::trans, and PgStat_TableXactStatus::tuples_deleted.

Referenced by heap_abort_speculative(), and heap_delete().

2222 {
2223  PgStat_TableStatus *pgstat_info = rel->pgstat_info;
2224 
2225  if (pgstat_info != NULL)
2226  {
2227  /* We have to log the effect at the proper transactional level */
2228  int nest_level = GetCurrentTransactionNestLevel();
2229 
2230  if (pgstat_info->trans == NULL ||
2231  pgstat_info->trans->nest_level != nest_level)
2232  add_tabstat_xact_level(pgstat_info, nest_level);
2233 
2234  pgstat_info->trans->tuples_deleted++;
2235  }
2236 }
PgStat_Counter tuples_deleted
Definition: pgstat.h:187
int GetCurrentTransactionNestLevel(void)
Definition: xact.c:857
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:237
static void add_tabstat_xact_level(PgStat_TableStatus *pgstat_info, int nest_level)
Definition: pgstat.c:2148
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:175

◆ pgstat_count_heap_insert()

void pgstat_count_heap_insert ( Relation  rel,
PgStat_Counter  n 
)

Definition at line 2175 of file pgstat.c.

References add_tabstat_xact_level(), GetCurrentTransactionNestLevel(), PgStat_TableXactStatus::nest_level, RelationData::pgstat_info, PgStat_TableStatus::trans, and PgStat_TableXactStatus::tuples_inserted.

Referenced by ExecRefreshMatView(), heap_insert(), and heap_multi_insert().

2176 {
2177  PgStat_TableStatus *pgstat_info = rel->pgstat_info;
2178 
2179  if (pgstat_info != NULL)
2180  {
2181  /* We have to log the effect at the proper transactional level */
2182  int nest_level = GetCurrentTransactionNestLevel();
2183 
2184  if (pgstat_info->trans == NULL ||
2185  pgstat_info->trans->nest_level != nest_level)
2186  add_tabstat_xact_level(pgstat_info, nest_level);
2187 
2188  pgstat_info->trans->tuples_inserted += n;
2189  }
2190 }
PgStat_Counter tuples_inserted
Definition: pgstat.h:185
int GetCurrentTransactionNestLevel(void)
Definition: xact.c:857
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:237
static void add_tabstat_xact_level(PgStat_TableStatus *pgstat_info, int nest_level)
Definition: pgstat.c:2148
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:175

◆ pgstat_count_heap_update()

void pgstat_count_heap_update ( Relation  rel,
bool  hot 
)

Definition at line 2196 of file pgstat.c.

References add_tabstat_xact_level(), GetCurrentTransactionNestLevel(), PgStat_TableXactStatus::nest_level, RelationData::pgstat_info, PgStat_TableStatus::t_counts, PgStat_TableCounts::t_tuples_hot_updated, PgStat_TableStatus::trans, and PgStat_TableXactStatus::tuples_updated.

Referenced by heap_update().

2197 {
2198  PgStat_TableStatus *pgstat_info = rel->pgstat_info;
2199 
2200  if (pgstat_info != NULL)
2201  {
2202  /* We have to log the effect at the proper transactional level */
2203  int nest_level = GetCurrentTransactionNestLevel();
2204 
2205  if (pgstat_info->trans == NULL ||
2206  pgstat_info->trans->nest_level != nest_level)
2207  add_tabstat_xact_level(pgstat_info, nest_level);
2208 
2209  pgstat_info->trans->tuples_updated++;
2210 
2211  /* t_tuples_hot_updated is nontransactional, so just advance it */
2212  if (hot)
2213  pgstat_info->t_counts.t_tuples_hot_updated++;
2214  }
2215 }
PgStat_Counter tuples_updated
Definition: pgstat.h:186
PgStat_Counter t_tuples_hot_updated
Definition: pgstat.h:124
PgStat_TableCounts t_counts
Definition: pgstat.h:176
int GetCurrentTransactionNestLevel(void)
Definition: xact.c:857
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:237
static void add_tabstat_xact_level(PgStat_TableStatus *pgstat_info, int nest_level)
Definition: pgstat.c:2148
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:175

◆ pgstat_count_slru_flush()

void pgstat_count_slru_flush ( int  slru_idx)

Definition at line 7402 of file pgstat.c.

References PgStat_MsgSLRU::m_flush, and slru_entry().

Referenced by SimpleLruWriteAll().

7403 {
7404  slru_entry(slru_idx)->m_flush += 1;
7405 }
PgStat_Counter m_flush
Definition: pgstat.h:492
static PgStat_MsgSLRU * slru_entry(int slru_idx)
Definition: pgstat.c:7354

◆ pgstat_count_slru_page_exists()

void pgstat_count_slru_page_exists ( int  slru_idx)

Definition at line 7384 of file pgstat.c.

References PgStat_MsgSLRU::m_blocks_exists, and slru_entry().

Referenced by SimpleLruDoesPhysicalPageExist().

7385 {
7386  slru_entry(slru_idx)->m_blocks_exists += 1;
7387 }
static PgStat_MsgSLRU * slru_entry(int slru_idx)
Definition: pgstat.c:7354
PgStat_Counter m_blocks_exists
Definition: pgstat.h:491

◆ pgstat_count_slru_page_hit()

void pgstat_count_slru_page_hit ( int  slru_idx)

Definition at line 7378 of file pgstat.c.

References PgStat_MsgSLRU::m_blocks_hit, and slru_entry().

Referenced by SimpleLruReadPage(), and SimpleLruReadPage_ReadOnly().

7379 {
7380  slru_entry(slru_idx)->m_blocks_hit += 1;
7381 }
static PgStat_MsgSLRU * slru_entry(int slru_idx)
Definition: pgstat.c:7354
PgStat_Counter m_blocks_hit
Definition: pgstat.h:488

◆ pgstat_count_slru_page_read()

void pgstat_count_slru_page_read ( int  slru_idx)

Definition at line 7390 of file pgstat.c.

References PgStat_MsgSLRU::m_blocks_read, and slru_entry().

Referenced by SimpleLruReadPage().

7391 {
7392  slru_entry(slru_idx)->m_blocks_read += 1;
7393 }
static PgStat_MsgSLRU * slru_entry(int slru_idx)
Definition: pgstat.c:7354
PgStat_Counter m_blocks_read
Definition: pgstat.h:489

◆ pgstat_count_slru_page_written()

void pgstat_count_slru_page_written ( int  slru_idx)

Definition at line 7396 of file pgstat.c.

References PgStat_MsgSLRU::m_blocks_written, and slru_entry().

Referenced by SlruPhysicalWritePage().

7397 {
7398  slru_entry(slru_idx)->m_blocks_written += 1;
7399 }
static PgStat_MsgSLRU * slru_entry(int slru_idx)
Definition: pgstat.c:7354
PgStat_Counter m_blocks_written
Definition: pgstat.h:490

◆ pgstat_count_slru_page_zeroed()

void pgstat_count_slru_page_zeroed ( int  slru_idx)

Definition at line 7372 of file pgstat.c.

References PgStat_MsgSLRU::m_blocks_zeroed, and slru_entry().

Referenced by SimpleLruZeroPage().

7373 {
7374  slru_entry(slru_idx)->m_blocks_zeroed += 1;
7375 }
static PgStat_MsgSLRU * slru_entry(int slru_idx)
Definition: pgstat.c:7354
PgStat_Counter m_blocks_zeroed
Definition: pgstat.h:487

◆ pgstat_count_slru_truncate()

void pgstat_count_slru_truncate ( int  slru_idx)

Definition at line 7408 of file pgstat.c.

References PgStat_MsgSLRU::m_truncate, and slru_entry().

Referenced by SimpleLruTruncate().

7409 {
7410  slru_entry(slru_idx)->m_truncate += 1;
7411 }
static PgStat_MsgSLRU * slru_entry(int slru_idx)
Definition: pgstat.c:7354
PgStat_Counter m_truncate
Definition: pgstat.h:493

◆ pgstat_count_truncate()

void pgstat_count_truncate ( Relation  rel)

Definition at line 2276 of file pgstat.c.

References add_tabstat_xact_level(), GetCurrentTransactionNestLevel(), PgStat_TableXactStatus::nest_level, RelationData::pgstat_info, pgstat_truncate_save_counters(), PgStat_TableStatus::trans, PgStat_TableXactStatus::tuples_deleted, PgStat_TableXactStatus::tuples_inserted, and PgStat_TableXactStatus::tuples_updated.

Referenced by ExecRefreshMatView(), and ExecuteTruncateGuts().

2277 {
2278  PgStat_TableStatus *pgstat_info = rel->pgstat_info;
2279 
2280  if (pgstat_info != NULL)
2281  {
2282  /* We have to log the effect at the proper transactional level */
2283  int nest_level = GetCurrentTransactionNestLevel();
2284 
2285  if (pgstat_info->trans == NULL ||
2286  pgstat_info->trans->nest_level != nest_level)
2287  add_tabstat_xact_level(pgstat_info, nest_level);
2288 
2289  pgstat_truncate_save_counters(pgstat_info->trans);
2290  pgstat_info->trans->tuples_inserted = 0;
2291  pgstat_info->trans->tuples_updated = 0;
2292  pgstat_info->trans->tuples_deleted = 0;
2293  }
2294 }
PgStat_Counter tuples_updated
Definition: pgstat.h:186
PgStat_Counter tuples_inserted
Definition: pgstat.h:185
PgStat_Counter tuples_deleted
Definition: pgstat.h:187
int GetCurrentTransactionNestLevel(void)
Definition: xact.c:857
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:237
static void add_tabstat_xact_level(PgStat_TableStatus *pgstat_info, int nest_level)
Definition: pgstat.c:2148
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:175
static void pgstat_truncate_save_counters(PgStat_TableXactStatus *trans)
Definition: pgstat.c:2247

◆ pgstat_drop_database()

void pgstat_drop_database ( Oid  databaseid)

Definition at line 1322 of file pgstat.c.

References PgStat_MsgTabpurge::m_databaseid, PgStat_MsgDropdb::m_databaseid, PgStat_MsgTabpurge::m_hdr, PgStat_MsgDropdb::m_hdr, PgStat_MsgTabpurge::m_nentries, PgStat_MsgTabpurge::m_tableid, MyDatabaseId, offsetof, PGINVALID_SOCKET, PGSTAT_MTYPE_DROPDB, PGSTAT_MTYPE_TABPURGE, pgstat_send(), pgstat_setheader(), and pgStatSock.

Referenced by dropdb(), and pgstat_vacuum_stat().

1323 {
1324  PgStat_MsgDropdb msg;
1325 
1327  return;
1328 
1330  msg.m_databaseid = databaseid;
1331  pgstat_send(&msg, sizeof(msg));
1332 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4593
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:185
Oid m_databaseid
Definition: pgstat.h:324
PgStat_MsgHdr m_hdr
Definition: pgstat.h:323
#define PGINVALID_SOCKET
Definition: port.h:33
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4580

◆ pgstat_end_function_usage()

void pgstat_end_function_usage ( PgStat_FunctionCallUsage fcu,
bool  finalize 
)

Definition at line 1926 of file pgstat.c.

References PgStat_FunctionCounts::f_numcalls, PgStat_FunctionCounts::f_self_time, PgStat_FunctionCallUsage::f_start, PgStat_FunctionCounts::f_total_time, PgStat_FunctionCallUsage::fs, have_function_stats, INSTR_TIME_ADD, INSTR_TIME_SET_CURRENT, INSTR_TIME_SUBTRACT, PgStat_FunctionCallUsage::save_f_total_time, PgStat_FunctionCallUsage::save_total, and total_func_time.

Referenced by call_pltcl_start_proc(), EventTriggerInvoke(), ExecCallTriggerFunc(), ExecEvalFuncExprFusage(), ExecEvalFuncExprStrictFusage(), ExecMakeFunctionResultSet(), ExecMakeTableFunctionResult(), ExecuteCallStmt(), and fmgr_security_definer().

1927 {
1928  PgStat_FunctionCounts *fs = fcu->fs;
1929  instr_time f_total;
1930  instr_time f_others;
1931  instr_time f_self;
1932 
1933  /* stats not wanted? */
1934  if (fs == NULL)
1935  return;
1936 
1937  /* total elapsed time in this function call */
1938  INSTR_TIME_SET_CURRENT(f_total);
1939  INSTR_TIME_SUBTRACT(f_total, fcu->f_start);
1940 
1941  /* self usage: elapsed minus anything already charged to other calls */
1942  f_others = total_func_time;
1943  INSTR_TIME_SUBTRACT(f_others, fcu->save_total);
1944  f_self = f_total;
1945  INSTR_TIME_SUBTRACT(f_self, f_others);
1946 
1947  /* update backend-wide total time */
1949 
1950  /*
1951  * Compute the new f_total_time as the total elapsed time added to the
1952  * pre-call value of f_total_time. This is necessary to avoid
1953  * double-counting any time taken by recursive calls of myself. (We do
1954  * not need any similar kluge for self time, since that already excludes
1955  * any recursive calls.)
1956  */
1957  INSTR_TIME_ADD(f_total, fcu->save_f_total_time);
1958 
1959  /* update counters in function stats table */
1960  if (finalize)
1961  fs->f_numcalls++;
1962  fs->f_total_time = f_total;
1963  INSTR_TIME_ADD(fs->f_self_time, f_self);
1964 
1965  /* indicate that we have something to send */
1966  have_function_stats = true;
1967 }
instr_time f_self_time
Definition: pgstat.h:553
instr_time save_total
Definition: pgstat.h:1357
struct timeval instr_time
Definition: instr_time.h:150
instr_time f_total_time
Definition: pgstat.h:552
PgStat_FunctionCounts * fs
Definition: pgstat.h:1353
PgStat_Counter f_numcalls
Definition: pgstat.h:551
#define INSTR_TIME_SUBTRACT(x, y)
Definition: instr_time.h:170
#define INSTR_TIME_ADD(x, y)
Definition: instr_time.h:158
static instr_time total_func_time
Definition: pgstat.c:315
static bool have_function_stats
Definition: pgstat.c:239
#define INSTR_TIME_SET_CURRENT(t)
Definition: instr_time.h:156
instr_time save_f_total_time
Definition: pgstat.h:1355

◆ pgstat_fetch_global()

◆ pgstat_fetch_replslot()

PgStat_ReplSlotStats* pgstat_fetch_replslot ( int *  nslots_p)

Definition at line 2897 of file pgstat.c.

References backend_read_statsfile(), nReplSlotStats, and replSlotStats.

Referenced by pg_stat_get_replication_slots().

2898 {
2900 
2901  *nslots_p = nReplSlotStats;
2902  return replSlotStats;
2903 }
static void backend_read_statsfile(void)
Definition: pgstat.c:6115
static int nReplSlotStats
Definition: pgstat.c:301
static PgStat_ReplSlotStats * replSlotStats
Definition: pgstat.c:300

◆ pgstat_fetch_slru()

PgStat_SLRUStats* pgstat_fetch_slru ( void  )

Definition at line 2880 of file pgstat.c.

References backend_read_statsfile(), and slruStats.

Referenced by pg_stat_get_slru().

2881 {
2883 
2884  return slruStats;
2885 }
static void backend_read_statsfile(void)
Definition: pgstat.c:6115
static PgStat_SLRUStats slruStats[SLRU_NUM_ELEMENTS]
Definition: pgstat.c:299

◆ pgstat_fetch_stat_archiver()

PgStat_ArchiverStats* pgstat_fetch_stat_archiver ( void  )

Definition at line 2831 of file pgstat.c.

References archiverStats, and backend_read_statsfile().

Referenced by pg_stat_get_archiver().

2832 {
2834 
2835  return &archiverStats;
2836 }
static void backend_read_statsfile(void)
Definition: pgstat.c:6115
static PgStat_ArchiverStats archiverStats
Definition: pgstat.c:296

◆ pgstat_fetch_stat_beentry()

◆ pgstat_fetch_stat_dbentry()

PgStat_StatDBEntry* pgstat_fetch_stat_dbentry ( Oid  dbid)

Definition at line 2659 of file pgstat.c.

References backend_read_statsfile(), HASH_FIND, and hash_search().

Referenced by do_autovacuum(), do_start_worker(), pg_stat_get_db_active_time(), pg_stat_get_db_blk_read_time(), pg_stat_get_db_blk_write_time(), pg_stat_get_db_blocks_fetched(), pg_stat_get_db_blocks_hit(), pg_stat_get_db_checksum_failures(), pg_stat_get_db_checksum_last_failure(), pg_stat_get_db_conflict_all(), pg_stat_get_db_conflict_bufferpin(), pg_stat_get_db_conflict_lock(), pg_stat_get_db_conflict_snapshot(), pg_stat_get_db_conflict_startup_deadlock(), pg_stat_get_db_conflict_tablespace(), pg_stat_get_db_deadlocks(), pg_stat_get_db_idle_in_transaction_time(), pg_stat_get_db_session_time(), pg_stat_get_db_sessions(), pg_stat_get_db_sessions_abandoned(), pg_stat_get_db_sessions_fatal(), pg_stat_get_db_sessions_killed(), pg_stat_get_db_stat_reset_time(), pg_stat_get_db_temp_bytes(), pg_stat_get_db_temp_files(), pg_stat_get_db_tuples_deleted(), pg_stat_get_db_tuples_fetched(), pg_stat_get_db_tuples_inserted(), pg_stat_get_db_tuples_returned(), pg_stat_get_db_tuples_updated(), pg_stat_get_db_xact_commit(), pg_stat_get_db_xact_rollback(), pgstat_fetch_stat_funcentry(), rebuild_database_list(), and recheck_relation_needs_vacanalyze().

2660 {
2661  /*
2662  * If not done for this transaction, read the statistics collector stats
2663  * file into some hash tables.
2664  */
2666 
2667  /*
2668  * Lookup the requested database; return NULL if not found
2669  */
2671  (void *) &dbid,
2672  HASH_FIND, NULL);
2673 }
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:954
static void backend_read_statsfile(void)
Definition: pgstat.c:6115
static HTAB * pgStatDBHash
Definition: pgstat.c:283

◆ pgstat_fetch_stat_funcentry()

PgStat_StatFuncEntry* pgstat_fetch_stat_funcentry ( Oid  funcid)

Definition at line 2742 of file pgstat.c.

References backend_read_statsfile(), PgStat_StatDBEntry::functions, HASH_FIND, hash_search(), MyDatabaseId, and pgstat_fetch_stat_dbentry().

Referenced by pg_stat_get_function_calls(), pg_stat_get_function_self_time(), and pg_stat_get_function_total_time().

2743 {
2744  PgStat_StatDBEntry *dbentry;
2745  PgStat_StatFuncEntry *funcentry = NULL;
2746 
2747  /* load the stats file if needed */
2749 
2750  /* Lookup our database, then find the requested function. */
2752  if (dbentry != NULL && dbentry->functions != NULL)
2753  {
2754  funcentry = (PgStat_StatFuncEntry *) hash_search(dbentry->functions,
2755  (void *) &func_id,
2756  HASH_FIND, NULL);
2757  }
2758 
2759  return funcentry;
2760 }
HTAB * functions
Definition: pgstat.h:742
PgStat_StatDBEntry * pgstat_fetch_stat_dbentry(Oid dbid)
Definition: pgstat.c:2659
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:954
static void backend_read_statsfile(void)
Definition: pgstat.c:6115
Oid MyDatabaseId
Definition: globals.c:86

◆ pgstat_fetch_stat_local_beentry()

LocalPgBackendStatus* pgstat_fetch_stat_local_beentry ( int  beid)

Definition at line 2796 of file pgstat.c.

References localNumBackends, and pgstat_read_current_status().

Referenced by pg_stat_get_activity(), and pg_stat_get_progress_info().

2797 {
2799 
2800  if (beid < 1 || beid > localNumBackends)
2801  return NULL;
2802 
2803  return &localBackendStatusTable[beid - 1];
2804 }
static void pgstat_read_current_status(void)
Definition: pgstat.c:3608
static LocalPgBackendStatus * localBackendStatusTable
Definition: pgstat.c:286
static int localNumBackends
Definition: pgstat.c:289

◆ pgstat_fetch_stat_numbackends()

int pgstat_fetch_stat_numbackends ( void  )

Definition at line 2815 of file pgstat.c.

References localNumBackends, and pgstat_read_current_status().

Referenced by pg_stat_get_activity(), pg_stat_get_backend_idset(), pg_stat_get_db_numbackends(), and pg_stat_get_progress_info().

2816 {
2818 
2819  return localNumBackends;
2820 }
static void pgstat_read_current_status(void)
Definition: pgstat.c:3608
static int localNumBackends
Definition: pgstat.c:289

◆ pgstat_fetch_stat_tabentry()

PgStat_StatTabEntry* pgstat_fetch_stat_tabentry ( Oid  relid)

Definition at line 2686 of file pgstat.c.

References backend_read_statsfile(), HASH_FIND, hash_search(), InvalidOid, MyDatabaseId, and PgStat_StatDBEntry::tables.

Referenced by index_concurrently_swap(), pg_stat_get_analyze_count(), pg_stat_get_autoanalyze_count(), pg_stat_get_autovacuum_count(), pg_stat_get_blocks_fetched(), pg_stat_get_blocks_hit(), pg_stat_get_dead_tuples(), pg_stat_get_ins_since_vacuum(), pg_stat_get_last_analyze_time(), pg_stat_get_last_autoanalyze_time(), pg_stat_get_last_autovacuum_time(), pg_stat_get_last_vacuum_time(), pg_stat_get_live_tuples(), pg_stat_get_mod_since_analyze(), pg_stat_get_numscans(), pg_stat_get_tuples_deleted(), pg_stat_get_tuples_fetched(), pg_stat_get_tuples_hot_updated(), pg_stat_get_tuples_inserted(), pg_stat_get_tuples_returned(), pg_stat_get_tuples_updated(), and pg_stat_get_vacuum_count().

2687 {
2688  Oid dbid;
2689  PgStat_StatDBEntry *dbentry;
2690  PgStat_StatTabEntry *tabentry;
2691 
2692  /*
2693  * If not done for this transaction, read the statistics collector stats
2694  * file into some hash tables.
2695  */
2697 
2698  /*
2699  * Lookup our database, then look in its table hash table.
2700  */
2701  dbid = MyDatabaseId;
2703  (void *) &dbid,
2704  HASH_FIND, NULL);
2705  if (dbentry != NULL && dbentry->tables != NULL)
2706  {
2707  tabentry = (PgStat_StatTabEntry *) hash_search(dbentry->tables,
2708  (void *) &relid,
2709  HASH_FIND, NULL);
2710  if (tabentry)
2711  return tabentry;
2712  }
2713 
2714  /*
2715  * If we didn't find it, maybe it's a shared table.
2716  */
2717  dbid = InvalidOid;
2719  (void *) &dbid,
2720  HASH_FIND, NULL);
2721  if (dbentry != NULL && dbentry->tables != NULL)
2722  {
2723  tabentry = (PgStat_StatTabEntry *) hash_search(dbentry->tables,
2724  (void *) &relid,
2725  HASH_FIND, NULL);
2726  if (tabentry)
2727  return tabentry;
2728  }
2729 
2730  return NULL;
2731 }
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:954
unsigned int Oid
Definition: postgres_ext.h:31
static void backend_read_statsfile(void)
Definition: pgstat.c:6115
Oid MyDatabaseId
Definition: globals.c:86
#define InvalidOid
Definition: postgres_ext.h:36
static HTAB * pgStatDBHash
Definition: pgstat.c:283

◆ pgstat_fetch_stat_wal()

PgStat_WalStats* pgstat_fetch_stat_wal ( void  )

Definition at line 2864 of file pgstat.c.

References backend_read_statsfile(), and walStats.

Referenced by pg_stat_get_wal().

2865 {
2867 
2868  return &walStats;
2869 }
static PgStat_WalStats walStats
Definition: pgstat.c:298
static void backend_read_statsfile(void)
Definition: pgstat.c:6115

◆ pgstat_get_backend_current_activity()

const char* pgstat_get_backend_current_activity ( int  pid,
bool  checkUser 
)

Definition at line 4431 of file pgstat.c.

References BackendStatusArray, CHECK_FOR_INTERRUPTS, GetUserId(), i, MaxBackends, pgstat_begin_read_activity, pgstat_clip_activity(), pgstat_end_read_activity, pgstat_read_activity_complete, PgBackendStatus::st_activity_raw, PgBackendStatus::st_procpid, PgBackendStatus::st_userid, and superuser().

Referenced by DeadLockReport().

4432 {
4433  PgBackendStatus *beentry;
4434  int i;
4435 
4436  beentry = BackendStatusArray;
4437  for (i = 1; i <= MaxBackends; i++)
4438  {
4439  /*
4440  * Although we expect the target backend's entry to be stable, that
4441  * doesn't imply that anyone else's is. To avoid identifying the
4442  * wrong backend, while we check for a match to the desired PID we
4443  * must follow the protocol of retrying if st_changecount changes
4444  * while we examine the entry, or if it's odd. (This might be
4445  * unnecessary, since fetching or storing an int is almost certainly
4446  * atomic, but let's play it safe.) We use a volatile pointer here to
4447  * ensure the compiler doesn't try to get cute.
4448  */
4449  volatile PgBackendStatus *vbeentry = beentry;
4450  bool found;
4451 
4452  for (;;)
4453  {
4454  int before_changecount;
4455  int after_changecount;
4456 
4457  pgstat_begin_read_activity(vbeentry, before_changecount);
4458 
4459  found = (vbeentry->st_procpid == pid);
4460 
4461  pgstat_end_read_activity(vbeentry, after_changecount);
4462 
4463  if (pgstat_read_activity_complete(before_changecount,
4464  after_changecount))
4465  break;
4466 
4467  /* Make sure we can break out of loop if stuck... */
4469  }
4470 
4471  if (found)
4472  {
4473  /* Now it is safe to use the non-volatile pointer */
4474  if (checkUser && !superuser() && beentry->st_userid != GetUserId())
4475  return "<insufficient privilege>";
4476  else if (*(beentry->st_activity_raw) == '\0')
4477  return "<command string not enabled>";
4478  else
4479  {
4480  /* this'll leak a bit of memory, but that seems acceptable */
4481  return pgstat_clip_activity(beentry->st_activity_raw);
4482  }
4483  }
4484 
4485  beentry++;
4486  }
4487 
4488  /* If we get here, caller is in error ... */
4489  return "<backend information not available>";
4490 }
static PgBackendStatus * BackendStatusArray
Definition: pgstat.c:2910
Oid GetUserId(void)
Definition: miscinit.c:478
bool superuser(void)
Definition: superuser.c:46
int MaxBackends
Definition: globals.c:137
char * st_activity_raw
Definition: pgstat.h:1241
#define pgstat_end_read_activity(beentry, after_changecount)
Definition: pgstat.h:1307
#define pgstat_begin_read_activity(beentry, before_changecount)
Definition: pgstat.h:1301
char * pgstat_clip_activity(const char *raw_activity)
Definition: pgstat.c:7220
int i
#define CHECK_FOR_INTERRUPTS()
Definition: miscadmin.h:100
#define pgstat_read_activity_complete(before_changecount, after_changecount)
Definition: pgstat.h:1313

◆ pgstat_get_crashed_backend_activity()

const char* pgstat_get_crashed_backend_activity ( int  pid,
char *  buffer,
int  buflen 
)

Definition at line 4509 of file pgstat.c.

References ascii_safe_strlcpy(), BackendActivityBuffer, BackendActivityBufferSize, BackendStatusArray, i, MaxBackends, Min, pgstat_track_activity_query_size, PgBackendStatus::st_activity_raw, and PgBackendStatus::st_procpid.

Referenced by LogChildExit().

4510 {
4511  volatile PgBackendStatus *beentry;
4512  int i;
4513 
4514  beentry = BackendStatusArray;
4515 
4516  /*
4517  * We probably shouldn't get here before shared memory has been set up,
4518  * but be safe.
4519  */
4520  if (beentry == NULL || BackendActivityBuffer == NULL)
4521  return NULL;
4522 
4523  for (i = 1; i <= MaxBackends; i++)
4524  {
4525  if (beentry->st_procpid == pid)
4526  {
4527  /* Read pointer just once, so it can't change after validation */
4528  const char *activity = beentry->st_activity_raw;
4529  const char *activity_last;
4530 
4531  /*
4532  * We mustn't access activity string before we verify that it
4533  * falls within the BackendActivityBuffer. To make sure that the
4534  * entire string including its ending is contained within the
4535  * buffer, subtract one activity length from the buffer size.
4536  */
4539 
4540  if (activity < BackendActivityBuffer ||
4541  activity > activity_last)
4542  return NULL;
4543 
4544  /* If no string available, no point in a report */
4545  if (activity[0] == '\0')
4546  return NULL;
4547 
4548  /*
4549  * Copy only ASCII-safe characters so we don't run into encoding
4550  * problems when reporting the message; and be sure not to run off
4551  * the end of memory. As only ASCII characters are reported, it
4552  * doesn't seem necessary to perform multibyte aware clipping.
4553  */
4554  ascii_safe_strlcpy(buffer, activity,
4555  Min(buflen, pgstat_track_activity_query_size));
4556 
4557  return buffer;
4558  }
4559 
4560  beentry++;
4561  }
4562 
4563  /* PID not found */
4564  return NULL;
4565 }
static PgBackendStatus * BackendStatusArray
Definition: pgstat.c:2910
static char * BackendActivityBuffer
Definition: pgstat.c:2914
#define Min(x, y)
Definition: c.h:986
static Size BackendActivityBufferSize
Definition: pgstat.c:2915
void ascii_safe_strlcpy(char *dest, const char *src, size_t destsiz)
Definition: ascii.c:173
int MaxBackends
Definition: globals.c:137
char * st_activity_raw
Definition: pgstat.h:1241
int pgstat_track_activity_query_size
Definition: pgstat.c:129
int i

◆ pgstat_get_wait_event()

const char* pgstat_get_wait_event ( uint32  wait_event_info)

Definition at line 3815 of file pgstat.c.

References GetLockNameFromTagType(), GetLWLockIdentifier(), PG_WAIT_ACTIVITY, PG_WAIT_BUFFER_PIN, PG_WAIT_CLIENT, PG_WAIT_EXTENSION, PG_WAIT_IO, PG_WAIT_IPC, PG_WAIT_LOCK, PG_WAIT_LWLOCK, PG_WAIT_TIMEOUT, pgstat_get_wait_activity(), pgstat_get_wait_client(), pgstat_get_wait_io(), pgstat_get_wait_ipc(), and pgstat_get_wait_timeout().

Referenced by pg_stat_get_activity(), and pg_stat_get_backend_wait_event().

3816 {
3817  uint32 classId;
3818  uint16 eventId;
3819  const char *event_name;
3820 
3821  /* report process as not waiting. */
3822  if (wait_event_info == 0)
3823  return NULL;
3824 
3825  classId = wait_event_info & 0xFF000000;
3826  eventId = wait_event_info & 0x0000FFFF;
3827 
3828  switch (classId)
3829  {
3830  case PG_WAIT_LWLOCK:
3831  event_name = GetLWLockIdentifier(classId, eventId);
3832  break;
3833  case PG_WAIT_LOCK:
3834  event_name = GetLockNameFromTagType(eventId);
3835  break;
3836  case PG_WAIT_BUFFER_PIN:
3837  event_name = "BufferPin";
3838  break;
3839  case PG_WAIT_ACTIVITY:
3840  {
3841  WaitEventActivity w = (WaitEventActivity) wait_event_info;
3842 
3843  event_name = pgstat_get_wait_activity(w);
3844  break;
3845  }
3846  case PG_WAIT_CLIENT:
3847  {
3848  WaitEventClient w = (WaitEventClient) wait_event_info;
3849 
3850  event_name = pgstat_get_wait_client(w);
3851  break;
3852  }
3853  case PG_WAIT_EXTENSION:
3854  event_name = "Extension";
3855  break;
3856  case PG_WAIT_IPC:
3857  {
3858  WaitEventIPC w = (WaitEventIPC) wait_event_info;
3859 
3860  event_name = pgstat_get_wait_ipc(w);
3861  break;
3862  }
3863  case PG_WAIT_TIMEOUT:
3864  {
3865  WaitEventTimeout w = (WaitEventTimeout) wait_event_info;
3866 
3867  event_name = pgstat_get_wait_timeout(w);
3868  break;
3869  }
3870  case PG_WAIT_IO:
3871  {
3872  WaitEventIO w = (WaitEventIO) wait_event_info;
3873 
3874  event_name = pgstat_get_wait_io(w);
3875  break;
3876  }
3877  default:
3878  event_name = "unknown wait event";
3879  break;
3880  }
3881 
3882  return event_name;
3883 }
#define PG_WAIT_LOCK
Definition: pgstat.h:896
WaitEventIPC
Definition: pgstat.h:958
static const char * pgstat_get_wait_timeout(WaitEventTimeout w)
Definition: pgstat.c:4141
static const char * pgstat_get_wait_ipc(WaitEventIPC w)
Definition: pgstat.c:3996
#define PG_WAIT_ACTIVITY
Definition: pgstat.h:898
#define PG_WAIT_IO
Definition: pgstat.h:903
static const char * pgstat_get_wait_activity(WaitEventActivity w)
Definition: pgstat.c:3892
unsigned short uint16
Definition: c.h:440
#define PG_WAIT_CLIENT
Definition: pgstat.h:899
WaitEventClient
Definition: pgstat.h:938
static const char * pgstat_get_wait_client(WaitEventClient w)
Definition: pgstat.c:3950
unsigned int uint32
Definition: c.h:441
WaitEventTimeout
Definition: pgstat.h:1010
#define PG_WAIT_EXTENSION
Definition: pgstat.h:900
#define PG_WAIT_BUFFER_PIN
Definition: pgstat.h:897
const char * GetLockNameFromTagType(uint16 locktag_type)
Definition: lmgr.c:1189
WaitEventIO
Definition: pgstat.h:1025
#define PG_WAIT_TIMEOUT
Definition: pgstat.h:902
#define PG_WAIT_IPC
Definition: pgstat.h:901
const char * GetLWLockIdentifier(uint32 classId, uint16 eventId)
Definition: lwlock.c:807
static const char * pgstat_get_wait_io(WaitEventIO w)
Definition: pgstat.c:4175
#define PG_WAIT_LWLOCK
Definition: pgstat.h:895
WaitEventActivity
Definition: pgstat.h:913

◆ pgstat_get_wait_event_type()

const char* pgstat_get_wait_event_type ( uint32  wait_event_info)

Definition at line 3760 of file pgstat.c.

References PG_WAIT_ACTIVITY, PG_WAIT_BUFFER_PIN, PG_WAIT_CLIENT, PG_WAIT_EXTENSION, PG_WAIT_IO, PG_WAIT_IPC, PG_WAIT_LOCK, PG_WAIT_LWLOCK, and PG_WAIT_TIMEOUT.

Referenced by pg_stat_get_activity(), and pg_stat_get_backend_wait_event_type().

3761 {
3762  uint32 classId;
3763  const char *event_type;
3764 
3765  /* report process as not waiting. */
3766  if (wait_event_info == 0)
3767  return NULL;
3768 
3769  classId = wait_event_info & 0xFF000000;
3770 
3771  switch (classId)
3772  {
3773  case PG_WAIT_LWLOCK:
3774  event_type = "LWLock";
3775  break;
3776  case PG_WAIT_LOCK:
3777  event_type = "Lock";
3778  break;
3779  case PG_WAIT_BUFFER_PIN:
3780  event_type = "BufferPin";
3781  break;
3782  case PG_WAIT_ACTIVITY:
3783  event_type = "Activity";
3784  break;
3785  case PG_WAIT_CLIENT:
3786  event_type = "Client";
3787  break;
3788  case PG_WAIT_EXTENSION:
3789  event_type = "Extension";
3790  break;
3791  case PG_WAIT_IPC:
3792  event_type = "IPC";
3793  break;
3794  case PG_WAIT_TIMEOUT:
3795  event_type = "Timeout";
3796  break;
3797  case PG_WAIT_IO:
3798  event_type = "IO";
3799  break;
3800  default:
3801  event_type = "???";
3802  break;
3803  }
3804 
3805  return event_type;
3806 }
#define PG_WAIT_LOCK
Definition: pgstat.h:896
#define PG_WAIT_ACTIVITY
Definition: pgstat.h:898
#define PG_WAIT_IO
Definition: pgstat.h:903
#define PG_WAIT_CLIENT
Definition: pgstat.h:899
unsigned int uint32
Definition: c.h:441
#define PG_WAIT_EXTENSION
Definition: pgstat.h:900
#define PG_WAIT_BUFFER_PIN
Definition: pgstat.h:897
#define PG_WAIT_TIMEOUT
Definition: pgstat.h:902
#define PG_WAIT_IPC
Definition: pgstat.h:901
#define PG_WAIT_LWLOCK
Definition: pgstat.h:895

◆ pgstat_init()

void pgstat_init ( void  )

Definition at line 404 of file pgstat.c.

References addrinfo::ai_next, AI_PASSIVE, bind, closesocket, connect, EINTR, ereport, errcode(), errcode_for_socket_access(), errmsg(), gai_strerror, LOG, pg_freeaddrinfo_all(), pg_getaddrinfo_all(), pg_set_noblock(), PGC_INTERNAL, PGC_S_OVERRIDE, PGINVALID_SOCKET, PGSTAT_MAX_MSG_SIZE, PGSTAT_MIN_RCVBUF, pgStatAddr, pgStatSock, recv, ReserveExternalFD(), select, send, SetConfigOption(), socket, StaticAssertStmt, and TESTBYTEVAL.

Referenced by PostmasterMain().

405 {
406  ACCEPT_TYPE_ARG3 alen;
407  struct addrinfo *addrs = NULL,
408  *addr,
409  hints;
410  int ret;
411  fd_set rset;
412  struct timeval tv;
413  char test_byte;
414  int sel_res;
415  int tries = 0;
416 
417 #define TESTBYTEVAL ((char) 199)
418 
419  /*
420  * This static assertion verifies that we didn't mess up the calculations
421  * involved in selecting maximum payload sizes for our UDP messages.
422  * Because the only consequence of overrunning PGSTAT_MAX_MSG_SIZE would
423  * be silent performance loss from fragmentation, it seems worth having a
424  * compile-time cross-check that we didn't.
425  */
427  "maximum stats message size exceeds PGSTAT_MAX_MSG_SIZE");
428 
429  /*
430  * Create the UDP socket for sending and receiving statistic messages
431  */
432  hints.ai_flags = AI_PASSIVE;
433  hints.ai_family = AF_UNSPEC;
434  hints.ai_socktype = SOCK_DGRAM;
435  hints.ai_protocol = 0;
436  hints.ai_addrlen = 0;
437  hints.ai_addr = NULL;
438  hints.ai_canonname = NULL;
439  hints.ai_next = NULL;
440  ret = pg_getaddrinfo_all("localhost", NULL, &hints, &addrs);
441  if (ret || !addrs)
442  {
443  ereport(LOG,
444  (errmsg("could not resolve \"localhost\": %s",
445  gai_strerror(ret))));
446  goto startup_failed;
447  }
448 
449  /*
450  * On some platforms, pg_getaddrinfo_all() may return multiple addresses
451  * only one of which will actually work (eg, both IPv6 and IPv4 addresses
452  * when kernel will reject IPv6). Worse, the failure may occur at the
453  * bind() or perhaps even connect() stage. So we must loop through the
454  * results till we find a working combination. We will generate LOG
455  * messages, but no error, for bogus combinations.
456  */
457  for (addr = addrs; addr; addr = addr->ai_next)
458  {
459 #ifdef HAVE_UNIX_SOCKETS
460  /* Ignore AF_UNIX sockets, if any are returned. */
461  if (addr->ai_family == AF_UNIX)
462  continue;
463 #endif
464 
465  if (++tries > 1)
466  ereport(LOG,
467  (errmsg("trying another address for the statistics collector")));
468 
469  /*
470  * Create the socket.
471  */
472  if ((pgStatSock = socket(addr->ai_family, SOCK_DGRAM, 0)) == PGINVALID_SOCKET)
473  {
474  ereport(LOG,
476  errmsg("could not create socket for statistics collector: %m")));
477  continue;
478  }
479 
480  /*
481  * Bind it to a kernel assigned port on localhost and get the assigned
482  * port via getsockname().
483  */
484  if (bind(pgStatSock, addr->ai_addr, addr->ai_addrlen) < 0)
485  {
486  ereport(LOG,
488  errmsg("could not bind socket for statistics collector: %m")));
491  continue;
492  }
493 
494  alen = sizeof(pgStatAddr);
495  if (getsockname(pgStatSock, (struct sockaddr *) &pgStatAddr, &alen) < 0)
496  {
497  ereport(LOG,
499  errmsg("could not get address of socket for statistics collector: %m")));
502  continue;
503  }
504 
505  /*
506  * Connect the socket to its own address. This saves a few cycles by
507  * not having to respecify the target address on every send. This also
508  * provides a kernel-level check that only packets from this same
509  * address will be received.
510  */
511  if (connect(pgStatSock, (struct sockaddr *) &pgStatAddr, alen) < 0)
512  {
513  ereport(LOG,
515  errmsg("could not connect socket for statistics collector: %m")));
518  continue;
519  }
520 
521  /*
522  * Try to send and receive a one-byte test message on the socket. This
523  * is to catch situations where the socket can be created but will not
524  * actually pass data (for instance, because kernel packet filtering
525  * rules prevent it).
526  */
527  test_byte = TESTBYTEVAL;
528 
529 retry1:
530  if (send(pgStatSock, &test_byte, 1, 0) != 1)
531  {
532  if (errno == EINTR)
533  goto retry1; /* if interrupted, just retry */
534  ereport(LOG,
536  errmsg("could not send test message on socket for statistics collector: %m")));
539  continue;
540  }
541 
542  /*
543  * There could possibly be a little delay before the message can be
544  * received. We arbitrarily allow up to half a second before deciding
545  * it's broken.
546  */
547  for (;;) /* need a loop to handle EINTR */
548  {
549  FD_ZERO(&rset);
550  FD_SET(pgStatSock, &rset);
551 
552  tv.tv_sec = 0;
553  tv.tv_usec = 500000;
554  sel_res = select(pgStatSock + 1, &rset, NULL, NULL, &tv);
555  if (sel_res >= 0 || errno != EINTR)
556  break;
557  }
558  if (sel_res < 0)
559  {
560  ereport(LOG,
562  errmsg("select() failed in statistics collector: %m")));
565  continue;
566  }
567  if (sel_res == 0 || !FD_ISSET(pgStatSock, &rset))
568  {
569  /*
570  * This is the case we actually think is likely, so take pains to
571  * give a specific message for it.
572  *
573  * errno will not be set meaningfully here, so don't use it.
574  */
575  ereport(LOG,
576  (errcode(ERRCODE_CONNECTION_FAILURE),
577  errmsg("test message did not get through on socket for statistics collector")));
580  continue;
581  }
582 
583  test_byte++; /* just make sure variable is changed */
584 
585 retry2:
586  if (recv(pgStatSock, &test_byte, 1, 0) != 1)
587  {
588  if (errno == EINTR)
589  goto retry2; /* if interrupted, just retry */
590  ereport(LOG,
592  errmsg("could not receive test message on socket for statistics collector: %m")));
595  continue;
596  }
597 
598  if (test_byte != TESTBYTEVAL) /* strictly paranoia ... */
599  {
600  ereport(LOG,
601  (errcode(ERRCODE_INTERNAL_ERROR),
602  errmsg("incorrect test message transmission on socket for statistics collector")));
605  continue;
606  }
607 
608  /* If we get here, we have a working socket */
609  break;
610  }
611 
612  /* Did we find a working address? */
613  if (!addr || pgStatSock == PGINVALID_SOCKET)
614  goto startup_failed;
615 
616  /*
617  * Set the socket to non-blocking IO. This ensures that if the collector
618  * falls behind, statistics messages will be discarded; backends won't
619  * block waiting to send messages to the collector.
620  */
622  {
623  ereport(LOG,
625  errmsg("could not set statistics collector socket to nonblocking mode: %m")));
626  goto startup_failed;
627  }
628 
629  /*
630  * Try to ensure that the socket's receive buffer is at least
631  * PGSTAT_MIN_RCVBUF bytes, so that it won't easily overflow and lose
632  * data. Use of UDP protocol means that we are willing to lose data under
633  * heavy load, but we don't want it to happen just because of ridiculously
634  * small default buffer sizes (such as 8KB on older Windows versions).
635  */
636  {
637  int old_rcvbuf;
638  int new_rcvbuf;
639  ACCEPT_TYPE_ARG3 rcvbufsize = sizeof(old_rcvbuf);
640 
641  if (getsockopt(pgStatSock, SOL_SOCKET, SO_RCVBUF,
642  (char *) &old_rcvbuf, &rcvbufsize) < 0)
643  {
644  ereport(LOG,
645  (errmsg("getsockopt(%s) failed: %m", "SO_RCVBUF")));
646  /* if we can't get existing size, always try to set it */
647  old_rcvbuf = 0;
648  }
649 
650  new_rcvbuf = PGSTAT_MIN_RCVBUF;
651  if (old_rcvbuf < new_rcvbuf)
652  {
653  if (setsockopt(pgStatSock, SOL_SOCKET, SO_RCVBUF,
654  (char *) &new_rcvbuf, sizeof(new_rcvbuf)) < 0)
655  ereport(LOG,
656  (errmsg("setsockopt(%s) failed: %m", "SO_RCVBUF")));
657  }
658  }
659 
660  pg_freeaddrinfo_all(hints.ai_family, addrs);
661 
662  /* Now that we have a long-lived socket, tell fd.c about it. */
664 
665  return;
666 
667 startup_failed:
668  ereport(LOG,
669  (errmsg("disabling statistics collector for lack of working socket")));
670 
671  if (addrs)
672  pg_freeaddrinfo_all(hints.ai_family, addrs);
673 
677 
678  /*
679  * Adjust GUC variables to suppress useless activity, and for debugging
680  * purposes (seeing track_counts off is a clue that we failed here). We
681  * use PGC_S_OVERRIDE because there is no point in trying to turn it back
682  * on from postgresql.conf without a restart.
683  */
684  SetConfigOption("track_counts", "off", PGC_INTERNAL, PGC_S_OVERRIDE);
685 }
void pg_freeaddrinfo_all(int hint_ai_family, struct addrinfo *ai)
Definition: ip.c:88
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:185
#define closesocket
Definition: port.h:332
int errcode(int sqlerrcode)
Definition: elog.c:694
#define connect(s, name, namelen)
Definition: win32_port.h:463
#define LOG
Definition: elog.h:26
#define bind(s, addr, addrlen)
Definition: win32_port.h:460
#define recv(s, buf, len, flags)
Definition: win32_port.h:465
#define gai_strerror
Definition: getaddrinfo.h:146
int pg_getaddrinfo_all(const char *hostname, const char *servname, const struct addrinfo *hintp, struct addrinfo **result)
Definition: ip.c:57
#define StaticAssertStmt(condition, errmessage)
Definition: c.h:918
#define PGSTAT_MIN_RCVBUF
Definition: pgstat.c:98
#define TESTBYTEVAL
void ReserveExternalFD(void)
Definition: fd.c:1111
void SetConfigOption(const char *name, const char *value, GucContext context, GucSource source)
Definition: guc.c:7888
#define AI_PASSIVE
Definition: getaddrinfo.h:62
#define select(n, r, w, e, timeout)
Definition: win32_port.h:464
int errcode_for_socket_access(void)
Definition: elog.c:788
#define socket(af, type, protocol)
Definition: win32_port.h:459
#define PGSTAT_MAX_MSG_SIZE
Definition: pgstat.h:224
#define PGINVALID_SOCKET
Definition: port.h:33
#define ereport(elevel,...)
Definition: elog.h:155
static struct sockaddr_storage pgStatAddr
Definition: pgstat.c:187
bool pg_set_noblock(pgsocket sock)
Definition: noblock.c:25
struct addrinfo * ai_next
Definition: getaddrinfo.h:107
int errmsg(const char *fmt,...)
Definition: elog.c:905
#define EINTR
Definition: win32_port.h:343
#define send(s, buf, len, flags)
Definition: win32_port.h:466

◆ pgstat_init_function_usage()

void pgstat_init_function_usage ( struct FunctionCallInfoBaseData fcinfo,
PgStat_FunctionCallUsage fcu 
)

◆ pgstat_initialize()

void pgstat_initialize ( void  )

Definition at line 3096 of file pgstat.c.

References Assert, InvalidBackendId, MaxBackends, MyAuxProcType, MyBackendId, NotAnAuxProcess, on_shmem_exit(), pgstat_beshutdown_hook(), and pgWalUsage.

Referenced by AuxiliaryProcessMain(), and InitPostgres().

3097 {
3098  /* Initialize MyBEEntry */
3100  {
3103  }
3104  else
3105  {
3106  /* Must be an auxiliary process */
3108 
3109  /*
3110  * Assign the MyBEEntry for an auxiliary process. Since it doesn't
3111  * have a BackendId, the slot is statically allocated based on the
3112  * auxiliary process type (MyAuxProcType). Backends use slots indexed
3113  * in the range from 1 to MaxBackends (inclusive), so we use
3114  * MaxBackends + AuxBackendType + 1 as the index of the slot for an
3115  * auxiliary process.
3116  */
3118  }
3119 
3120  /*
3121  * Initialize prevWalUsage with pgWalUsage so that pgstat_send_wal() can
3122  * calculate how much pgWalUsage counters are increased by substracting
3123  * prevWalUsage from pgWalUsage.
3124  */
3126 
3127  /* Set up a process-exit hook to clean up */
3129 }
static PgBackendStatus * BackendStatusArray
Definition: pgstat.c:2910
BackendId MyBackendId
Definition: globals.c:82
WalUsage pgWalUsage
Definition: instrument.c:22
int MaxBackends
Definition: globals.c:137
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2911
void on_shmem_exit(pg_on_exit_callback function, Datum arg)
Definition: ipc.c:361
static void pgstat_beshutdown_hook(int code, Datum arg)
Definition: pgstat.c:3317
#define InvalidBackendId
Definition: backendid.h:23
AuxProcType MyAuxProcType
Definition: bootstrap.c:70
#define Assert(condition)
Definition: c.h:804
static WalUsage prevWalUsage
Definition: pgstat.c:153

◆ pgstat_initstats()

void pgstat_initstats ( Relation  rel)

Definition at line 1983 of file pgstat.c.

References get_tabstat_entry(), PGINVALID_SOCKET, RelationData::pgstat_info, pgstat_track_counts, pgStatSock, RelationData::rd_id, RelationData::rd_rel, and PgStat_TableStatus::t_id.

Referenced by relation_open(), and try_relation_open().

1984 {
1985  Oid rel_id = rel->rd_id;
1986  char relkind = rel->rd_rel->relkind;
1987 
1988  /* We only count stats for things that have storage */
1989  if (!RELKIND_HAS_STORAGE(relkind))
1990  {
1991  rel->pgstat_info = NULL;
1992  return;
1993  }
1994 
1996  {
1997  /* We're not counting at all */
1998  rel->pgstat_info = NULL;
1999  return;
2000  }
2001 
2002  /*
2003  * If we already set up this relation in the current transaction, nothing
2004  * to do.
2005  */
2006  if (rel->pgstat_info != NULL &&
2007  rel->pgstat_info->t_id == rel_id)
2008  return;
2009 
2010  /* Else find or make the PgStat_TableStatus entry, and update link */
2011  rel->pgstat_info = get_tabstat_entry(rel_id, rel->rd_rel->relisshared);
2012 }
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:185
Form_pg_class rd_rel
Definition: rel.h:110
unsigned int Oid
Definition: postgres_ext.h:31
bool pgstat_track_counts
Definition: pgstat.c:127
Oid rd_id
Definition: rel.h:112
static PgStat_TableStatus * get_tabstat_entry(Oid rel_id, bool isshared)
Definition: pgstat.c:2018
#define PGINVALID_SOCKET
Definition: port.h:33
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:237

◆ pgstat_ping()

void pgstat_ping ( void  )

Definition at line 1820 of file pgstat.c.

References PgStat_MsgDummy::m_hdr, PGINVALID_SOCKET, PGSTAT_MTYPE_DUMMY, pgstat_send(), pgstat_setheader(), and pgStatSock.

1821 {
1822  PgStat_MsgDummy msg;
1823 
1825  return;
1826 
1828  pgstat_send(&msg, sizeof(msg));
1829 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4593
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:185
#define PGINVALID_SOCKET
Definition: port.h:33
PgStat_MsgHdr m_hdr
Definition: pgstat.h:234
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4580

◆ pgstat_progress_end_command()

void pgstat_progress_end_command ( void  )

Definition at line 3529 of file pgstat.c.

References InvalidOid, MyBEEntry, PGSTAT_BEGIN_WRITE_ACTIVITY, PGSTAT_END_WRITE_ACTIVITY, pgstat_track_activities, PROGRESS_COMMAND_INVALID, PgBackendStatus::st_progress_command, and PgBackendStatus::st_progress_command_target.

Referenced by AbortSubTransaction(), AbortTransaction(), analyze_rel(), cluster_rel(), DefineIndex(), EndCopy(), EndCopyFrom(), heap_vacuum_rel(), perform_base_backup(), reindex_index(), and ReindexRelationConcurrently().

3530 {
3531  volatile PgBackendStatus *beentry = MyBEEntry;
3532 
3533  if (!beentry || !pgstat_track_activities)
3534  return;
3535 
3537  return;
3538 
3539  PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
3542  PGSTAT_END_WRITE_ACTIVITY(beentry);
3543 }
Oid st_progress_command_target
Definition: pgstat.h:1253
ProgressCommandType st_progress_command
Definition: pgstat.h:1252
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2911
#define PGSTAT_END_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1293
#define InvalidOid
Definition: postgres_ext.h:36
bool pgstat_track_activities
Definition: pgstat.c:126
#define PGSTAT_BEGIN_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1286

◆ pgstat_progress_start_command()

void pgstat_progress_start_command ( ProgressCommandType  cmdtype,
Oid  relid 
)

Definition at line 3457 of file pgstat.c.

References MemSet, MyBEEntry, PGSTAT_BEGIN_WRITE_ACTIVITY, PGSTAT_END_WRITE_ACTIVITY, pgstat_track_activities, PgBackendStatus::st_progress_command, PgBackendStatus::st_progress_command_target, and PgBackendStatus::st_progress_param.

Referenced by analyze_rel(), BeginCopyFrom(), BeginCopyTo(), cluster_rel(), DefineIndex(), heap_vacuum_rel(), perform_base_backup(), reindex_index(), and ReindexRelationConcurrently().

3458 {
3459  volatile PgBackendStatus *beentry = MyBEEntry;
3460 
3461  if (!beentry || !pgstat_track_activities)
3462  return;
3463 
3464  PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
3465  beentry->st_progress_command = cmdtype;
3466  beentry->st_progress_command_target = relid;
3467  MemSet(&beentry->st_progress_param, 0, sizeof(beentry->st_progress_param));
3468  PGSTAT_END_WRITE_ACTIVITY(beentry);
3469 }
Oid st_progress_command_target
Definition: pgstat.h:1253
#define MemSet(start, val, len)
Definition: c.h:1008
ProgressCommandType st_progress_command
Definition: pgstat.h:1252
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2911
#define PGSTAT_END_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1293
int64 st_progress_param[PGSTAT_NUM_PROGRESS_PARAM]
Definition: pgstat.h:1254
bool pgstat_track_activities
Definition: pgstat.c:126
#define PGSTAT_BEGIN_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1286

◆ pgstat_progress_update_multi_param()

void pgstat_progress_update_multi_param ( int  nparam,
const int *  index,
const int64 *  val 
)

Definition at line 3500 of file pgstat.c.

References Assert, i, MyBEEntry, PGSTAT_BEGIN_WRITE_ACTIVITY, PGSTAT_END_WRITE_ACTIVITY, PGSTAT_NUM_PROGRESS_PARAM, pgstat_track_activities, and PgBackendStatus::st_progress_param.

Referenced by _bt_spools_heapscan(), BuildRelationExtStatistics(), DefineIndex(), heapam_relation_copy_for_cluster(), index_build(), lazy_scan_heap(), perform_base_backup(), reindex_index(), ReindexRelationConcurrently(), update_basebackup_progress(), validate_index(), and WaitForLockersMultiple().

3502 {
3503  volatile PgBackendStatus *beentry = MyBEEntry;
3504  int i;
3505 
3506  if (!beentry || !pgstat_track_activities || nparam == 0)
3507  return;
3508 
3509  PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
3510 
3511  for (i = 0; i < nparam; ++i)
3512  {
3513  Assert(index[i] >= 0 && index[i] < PGSTAT_NUM_PROGRESS_PARAM);
3514 
3515  beentry->st_progress_param[index[i]] = val[i];
3516  }
3517 
3518  PGSTAT_END_WRITE_ACTIVITY(beentry);
3519 }
Definition: type.h:89
#define PGSTAT_NUM_PROGRESS_PARAM
Definition: pgstat.h:1118
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2911
#define PGSTAT_END_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1293
#define Assert(condition)
Definition: c.h:804
int64 st_progress_param[PGSTAT_NUM_PROGRESS_PARAM]
Definition: pgstat.h:1254
bool pgstat_track_activities
Definition: pgstat.c:126
int i
#define PGSTAT_BEGIN_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1286
long val
Definition: informix.c:664

◆ pgstat_progress_update_param()

void pgstat_progress_update_param ( int  index,
int64  val 
)

Definition at line 3478 of file pgstat.c.

References Assert, MyBEEntry, PGSTAT_BEGIN_WRITE_ACTIVITY, PGSTAT_END_WRITE_ACTIVITY, PGSTAT_NUM_PROGRESS_PARAM, pgstat_track_activities, PgBackendStatus::st_progress_param, and val.

Referenced by _bt_leafbuild(), _bt_load(), _bt_spools_heapscan(), _h_indexbuild(), acquire_inherited_sample_rows(), acquire_sample_rows(), BeginCopyFrom(), btvacuumscan(), BuildRelationExtStatistics(), cluster_rel(), copy_dest_receive(), CopyFrom(), CopyLoadRawBuf(), CopySendEndOfRow(), DefineIndex(), do_analyze_rel(), DoCopyTo(), finish_heap_swap(), hashbuild(), heap_vacuum_rel(), heapam_index_build_range_scan(), heapam_index_validate_scan(), heapam_relation_copy_for_cluster(), lazy_cleanup_all_indexes(), lazy_record_dead_tuple(), lazy_scan_heap(), lazy_truncate_heap(), lazy_vacuum_all_indexes(), lazy_vacuum_heap(), lazy_vacuum_page(), perform_base_backup(), reindex_index(), reindex_relation(), ReindexRelationConcurrently(), validate_index(), WaitForLockersMultiple(), and WaitForOlderSnapshots().

3479 {
3480  volatile PgBackendStatus *beentry = MyBEEntry;
3481 
3483 
3484  if (!beentry || !pgstat_track_activities)
3485  return;
3486 
3487  PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
3488  beentry->st_progress_param[index] = val;
3489  PGSTAT_END_WRITE_ACTIVITY(beentry);
3490 }
Definition: type.h:89
#define PGSTAT_NUM_PROGRESS_PARAM
Definition: pgstat.h:1118
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2911
#define PGSTAT_END_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1293
#define Assert(condition)
Definition: c.h:804
int64 st_progress_param[PGSTAT_NUM_PROGRESS_PARAM]
Definition: pgstat.h:1254
bool pgstat_track_activities
Definition: pgstat.c:126
#define PGSTAT_BEGIN_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1286
long val
Definition: informix.c:664

◆ pgstat_report_activity()

void pgstat_report_activity ( BackendState  state,
const char *  cmd_str 
)

Definition at line 3355 of file pgstat.c.

References GetCurrentStatementStartTimestamp(), GetCurrentTimestamp(), Min, MyBEEntry, MyProc, PGSTAT_BEGIN_WRITE_ACTIVITY, PGSTAT_END_WRITE_ACTIVITY, pgstat_track_activities, pgstat_track_activity_query_size, pgStatActiveTime, pgStatTransactionIdleTime, PgBackendStatus::st_activity_raw, PgBackendStatus::st_activity_start_timestamp, PgBackendStatus::st_state, PgBackendStatus::st_state_start_timestamp, PgBackendStatus::st_xact_start_timestamp, STATE_DISABLED, STATE_FASTPATH, STATE_IDLEINTRANSACTION, STATE_IDLEINTRANSACTION_ABORTED, STATE_RUNNING, TimestampDifference(), and PGPROC::wait_event_info.

Referenced by _bt_parallel_build_main(), apply_handle_begin(), apply_handle_commit(), apply_handle_stream_commit(), apply_handle_stream_start(), apply_handle_stream_stop(), autovac_report_activity(), autovac_report_workitem(), exec_bind_message(), exec_execute_message(), exec_parse_message(), exec_replication_command(), exec_simple_query(), initialize_worker_spi(), LogicalRepApplyLoop(), parallel_vacuum_main(), ParallelQueryMain(), and PostgresMain().

3356 {
3357  volatile PgBackendStatus *beentry = MyBEEntry;
3358  TimestampTz start_timestamp;
3359  TimestampTz current_timestamp;
3360  int len = 0;
3361 
3362  TRACE_POSTGRESQL_STATEMENT_STATUS(cmd_str);
3363 
3364  if (!beentry)
3365  return;
3366 
3368  {
3369  if (beentry->st_state != STATE_DISABLED)
3370  {
3371  volatile PGPROC *proc = MyProc;
3372 
3373  /*
3374  * track_activities is disabled, but we last reported a
3375  * non-disabled state. As our final update, change the state and
3376  * clear fields we will not be updating anymore.
3377  */
3378  PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
3379  beentry->st_state = STATE_DISABLED;
3380  beentry->st_state_start_timestamp = 0;
3381  beentry->st_activity_raw[0] = '\0';
3382  beentry->st_activity_start_timestamp = 0;
3383  /* st_xact_start_timestamp and wait_event_info are also disabled */
3384  beentry->st_xact_start_timestamp = 0;
3385  proc->wait_event_info = 0;
3386  PGSTAT_END_WRITE_ACTIVITY(beentry);
3387  }
3388  return;
3389  }
3390 
3391  /*
3392  * To minimize the time spent modifying the entry, and avoid risk of
3393  * errors inside the critical section, fetch all the needed data first.
3394  */
3395  start_timestamp = GetCurrentStatementStartTimestamp();
3396  if (cmd_str != NULL)
3397  {
3398  /*
3399  * Compute length of to-be-stored string unaware of multi-byte
3400  * characters. For speed reasons that'll get corrected on read, rather
3401  * than computed every write.
3402  */
3403  len = Min(strlen(cmd_str), pgstat_track_activity_query_size - 1);
3404  }
3405  current_timestamp = GetCurrentTimestamp();
3406 
3407  /*
3408  * If the state has changed from "active" or "idle in transaction",
3409  * calculate the duration.
3410  */
3411  if ((beentry->st_state == STATE_RUNNING ||
3412  beentry->st_state == STATE_FASTPATH ||
3413  beentry->st_state == STATE_IDLEINTRANSACTION ||
3415  state != beentry->st_state)
3416  {
3417  long secs;
3418  int usecs;
3419 
3421  current_timestamp,
3422  &secs, &usecs);
3423 
3424  if (beentry->st_state == STATE_RUNNING ||
3425  beentry->st_state == STATE_FASTPATH)
3426  pgStatActiveTime += secs * 1000000 + usecs;
3427  else
3428  pgStatTransactionIdleTime += secs * 1000000 + usecs;
3429  }
3430 
3431  /*
3432  * Now update the status entry
3433  */
3434  PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
3435 
3436  beentry->st_state = state;
3437  beentry->st_state_start_timestamp = current_timestamp;
3438 
3439  if (cmd_str != NULL)
3440  {
3441  memcpy((char *) beentry->st_activity_raw, cmd_str, len);
3442  beentry->st_activity_raw[len] = '\0';
3443  beentry->st_activity_start_timestamp = start_timestamp;
3444  }
3445 
3446  PGSTAT_END_WRITE_ACTIVITY(beentry);
3447 }
uint32 wait_event_info
Definition: proc.h:226
TimestampTz st_activity_start_timestamp
Definition: pgstat.h:1211
TimestampTz GetCurrentTimestamp(void)
Definition: timestamp.c:1578
PGPROC * MyProc
Definition: proc.c:68
int64 TimestampTz
Definition: timestamp.h:39
#define Min(x, y)
Definition: c.h:986
BackendState st_state
Definition: pgstat.h:1229
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2911
#define PGSTAT_END_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1293
char * st_activity_raw
Definition: pgstat.h:1241
static PgStat_Counter pgStatActiveTime
Definition: pgstat.c:261
int pgstat_track_activity_query_size
Definition: pgstat.c:129
TimestampTz st_state_start_timestamp
Definition: pgstat.h:1212
Definition: regguts.h:317
static PgStat_Counter pgStatTransactionIdleTime
Definition: pgstat.c:262
TimestampTz st_xact_start_timestamp
Definition: pgstat.h:1210
bool pgstat_track_activities
Definition: pgstat.c:126
void TimestampDifference(TimestampTz start_time, TimestampTz stop_time, long *secs, int *microsecs)
Definition: timestamp.c:1654
Definition: proc.h:121
#define PGSTAT_BEGIN_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1286
TimestampTz GetCurrentStatementStartTimestamp(void)
Definition: xact.c:807

◆ pgstat_report_analyze()

void pgstat_report_analyze ( Relation  rel,
PgStat_Counter  livetuples,
PgStat_Counter  deadtuples,
bool  resetcounter 
)

Definition at line 1628 of file pgstat.c.

References GetCurrentTimestamp(), InvalidOid, IsAutoVacuumWorkerProcess(), PgStat_MsgAnalyze::m_analyzetime, PgStat_MsgAnalyze::m_autovacuum, PgStat_MsgAnalyze::m_databaseid, PgStat_MsgAnalyze::m_dead_tuples, PgStat_MsgAnalyze::m_hdr, PgStat_MsgAnalyze::m_live_tuples, PgStat_MsgAnalyze::m_resetcounter, PgStat_MsgAnalyze::m_tableoid, Max, MyDatabaseId, PGINVALID_SOCKET, RelationData::pgstat_info, PGSTAT_MTYPE_ANALYZE, pgstat_send(), pgstat_setheader(), pgstat_track_counts, pgStatSock, RelationData::rd_rel, RelationGetRelid, PgStat_TableStatus::t_counts, PgStat_TableCounts::t_delta_dead_tuples, PgStat_TableStatus::trans, trans, PgStat_TableXactStatus::tuples_deleted, PgStat_TableXactStatus::tuples_inserted, PgStat_TableXactStatus::tuples_updated, and PgStat_TableXactStatus::upper.

Referenced by do_analyze_rel().

1631 {
1632  PgStat_MsgAnalyze msg;
1633 
1635  return;
1636 
1637  /*
1638  * Unlike VACUUM, ANALYZE might be running inside a transaction that has
1639  * already inserted and/or deleted rows in the target table. ANALYZE will
1640  * have counted such rows as live or dead respectively. Because we will
1641  * report our counts of such rows at transaction end, we should subtract
1642  * off these counts from what we send to the collector now, else they'll
1643  * be double-counted after commit. (This approach also ensures that the
1644  * collector ends up with the right numbers if we abort instead of
1645  * committing.)
1646  */
1647  if (rel->pgstat_info != NULL)
1648  {
1650 
1651  for (trans = rel->pgstat_info->trans; trans; trans = trans->upper)
1652  {
1653  livetuples -= trans->tuples_inserted - trans->tuples_deleted;
1654  deadtuples -= trans->tuples_updated + trans->tuples_deleted;
1655  }
1656  /* count stuff inserted by already-aborted subxacts, too */
1657  deadtuples -= rel->pgstat_info->t_counts.t_delta_dead_tuples;
1658  /* Since ANALYZE's counts are estimates, we could have underflowed */
1659  livetuples = Max(livetuples, 0);
1660  deadtuples = Max(deadtuples, 0);
1661  }
1662 
1664  msg.m_databaseid = rel->rd_rel->relisshared ? InvalidOid : MyDatabaseId;
1665  msg.m_tableoid = RelationGetRelid(rel);
1667  msg.m_resetcounter = resetcounter;
1669  msg.m_live_tuples = livetuples;
1670  msg.m_dead_tuples = deadtuples;
1671  pgstat_send(&msg, sizeof(msg));
1672 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4593
PgStat_Counter tuples_updated
Definition: pgstat.h:186
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:185
TimestampTz GetCurrentTimestamp(void)
Definition: timestamp.c:1578
TimestampTz m_analyzetime
Definition: pgstat.h:428
PgStat_TableCounts t_counts
Definition: pgstat.h:176
Form_pg_class rd_rel
Definition: rel.h:110
bool m_resetcounter
Definition: pgstat.h:427
bool pgstat_track_counts
Definition: pgstat.c:127
PgStat_Counter tuples_inserted
Definition: pgstat.h:185
PgStat_Counter t_delta_dead_tuples
Definition: pgstat.h:128
bool IsAutoVacuumWorkerProcess(void)
Definition: autovacuum.c:3395
struct PgStat_TableXactStatus * upper
Definition: pgstat.h:194
PgStat_Counter m_live_tuples
Definition: pgstat.h:429
bool m_autovacuum
Definition: pgstat.h:426
PgStat_Counter tuples_deleted
Definition: pgstat.h:187
#define PGINVALID_SOCKET
Definition: port.h:33
Oid MyDatabaseId
Definition: globals.c:86
#define InvalidOid
Definition: postgres_ext.h:36
#define Max(x, y)
Definition: c.h:980
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4580
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:237
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:175
PgStat_MsgHdr m_hdr
Definition: pgstat.h:423
static zic_t trans[TZ_MAX_LEAPS]
Definition: zic.c:400
PgStat_Counter m_dead_tuples
Definition: pgstat.h:430
#define RelationGetRelid(relation)
Definition: rel.h:457

◆ pgstat_report_appname()

void pgstat_report_appname ( const char *  appname)

Definition at line 3552 of file pgstat.c.

References MyBEEntry, NAMEDATALEN, pg_mbcliplen(), PGSTAT_BEGIN_WRITE_ACTIVITY, PGSTAT_END_WRITE_ACTIVITY, and PgBackendStatus::st_appname.

Referenced by assign_application_name(), and pgstat_bestart().

3553 {
3554  volatile PgBackendStatus *beentry = MyBEEntry;
3555  int len;
3556 
3557  if (!beentry)
3558  return;
3559 
3560  /* This should be unnecessary if GUC did its job, but be safe */
3561  len = pg_mbcliplen(appname, strlen(appname), NAMEDATALEN - 1);
3562 
3563  /*
3564  * Update my status entry, following the protocol of bumping
3565  * st_changecount before and after. We use a volatile pointer here to
3566  * ensure the compiler doesn't try to get cute.
3567  */
3568  PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
3569 
3570  memcpy((char *) beentry->st_appname, appname, len);
3571  beentry->st_appname[len] = '\0';
3572 
3573  PGSTAT_END_WRITE_ACTIVITY(beentry);
3574 }
#define NAMEDATALEN
int pg_mbcliplen(const char *mbstr, int len, int limit)
Definition: mbutils.c:967
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2911
#define PGSTAT_END_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1293
char * st_appname
Definition: pgstat.h:1232
#define PGSTAT_BEGIN_WRITE_ACTIVITY(beentry)
Definition: pgstat.h:1286

◆ pgstat_report_autovac()

void pgstat_report_autovac ( Oid  dboid)

Definition at line 1578 of file pgstat.c.

References GetCurrentTimestamp(), PgStat_MsgAutovacStart::m_databaseid, PgStat_MsgAutovacStart::m_hdr, PgStat_MsgAutovacStart::m_start_time, PGINVALID_SOCKET, PGSTAT_MTYPE_AUTOVAC_START, pgstat_send(), pgstat_setheader(), and pgStatSock.

Referenced by AutoVacWorkerMain().

1579 {
1581 
1583  return;
1584 
1586  msg.m_databaseid = dboid;
1588 
1589  pgstat_send(&msg, sizeof(msg));
1590 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4593
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:185
TimestampTz GetCurrentTimestamp(void)
Definition: timestamp.c:1578
PgStat_MsgHdr m_hdr
Definition: pgstat.h:393
#define PGINVALID_SOCKET
Definition: port.h:33
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4580
TimestampTz m_start_time
Definition: pgstat.h:395

◆ pgstat_report_checksum_failure()

void pgstat_report_checksum_failure ( void  )

Definition at line 1744 of file pgstat.c.

References MyDatabaseId, and pgstat_report_checksum_failures_in_db().

Referenced by PageIsVerifiedExtended().

1745 {
1747 }
void pgstat_report_checksum_failures_in_db(Oid dboid, int failurecount)
Definition: pgstat.c:1722
Oid MyDatabaseId
Definition: globals.c:86

◆ pgstat_report_checksum_failures_in_db()

void pgstat_report_checksum_failures_in_db ( Oid  dboid,
int  failurecount 
)

Definition at line 1722 of file pgstat.c.

References GetCurrentTimestamp(), PgStat_MsgChecksumFailure::m_databaseid, PgStat_MsgChecksumFailure::m_failure_time, PgStat_MsgChecksumFailure::m_failurecount, PgStat_MsgChecksumFailure::m_hdr, PGINVALID_SOCKET, PGSTAT_MTYPE_CHECKSUMFAILURE, pgstat_send(), pgstat_setheader(), pgstat_track_counts, and pgStatSock.

Referenced by pgstat_report_checksum_failure(), and sendFile().

1723 {
1725 
1727  return;
1728 
1730  msg.m_databaseid = dboid;
1731  msg.m_failurecount = failurecount;
1733 
1734  pgstat_send(&msg, sizeof(msg));
1735 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4593
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:185
TimestampTz GetCurrentTimestamp(void)
Definition: timestamp.c:1578
PgStat_MsgHdr m_hdr
Definition: pgstat.h:630
bool pgstat_track_counts
Definition: pgstat.c:127
TimestampTz m_failure_time
Definition: pgstat.h:633
#define PGINVALID_SOCKET
Definition: port.h:33
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4580

◆ pgstat_report_deadlock()

void pgstat_report_deadlock ( void  )

Definition at line 1701 of file pgstat.c.

References PgStat_MsgDeadlock::m_databaseid, PgStat_MsgDeadlock::m_hdr, MyDatabaseId, PGINVALID_SOCKET, PGSTAT_MTYPE_DEADLOCK, pgstat_send(), pgstat_setheader(), pgstat_track_counts, and pgStatSock.

Referenced by DeadLockReport().

1702 {
1703  PgStat_MsgDeadlock msg;
1704 
1706  return;
1707 
1709  msg.m_databaseid = MyDatabaseId;
1710  pgstat_send(&msg, sizeof(msg));
1711 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4593
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:185
bool pgstat_track_counts
Definition: pgstat.c:127
PgStat_MsgHdr m_hdr
Definition: pgstat.h:619
#define PGINVALID_SOCKET
Definition: port.h:33
Oid MyDatabaseId
Definition: globals.c:86
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4580

◆ pgstat_report_recovery_conflict()

void pgstat_report_recovery_conflict ( int  reason)

Definition at line 1681 of file pgstat.c.

References PgStat_MsgRecoveryConflict::m_databaseid, PgStat_MsgRecoveryConflict::m_hdr, PgStat_MsgRecoveryConflict::m_reason, MyDatabaseId, PGINVALID_SOCKET, PGSTAT_MTYPE_RECOVERYCONFLICT, pgstat_send(), pgstat_setheader(), pgstat_track_counts, and pgStatSock.

Referenced by ProcessInterrupts().

1682 {
1684 
1686  return;
1687 
1689  msg.m_databaseid = MyDatabaseId;
1690  msg.m_reason = reason;
1691  pgstat_send(&msg, sizeof(msg));
1692 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4593
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:185
bool pgstat_track_counts
Definition: pgstat.c:127
PgStat_MsgHdr m_hdr
Definition: pgstat.h:521
#define PGINVALID_SOCKET
Definition: port.h:33
Oid MyDatabaseId
Definition: globals.c:86
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4580

◆ pgstat_report_replslot()

void pgstat_report_replslot ( const char *  slotname,
int  spilltxns,
int  spillcount,
int  spillbytes,
int  streamtxns,
int  streamcount,
int  streambytes 
)

Definition at line 1776 of file pgstat.c.

References PgStat_MsgReplSlot::m_drop, PgStat_MsgReplSlot::m_hdr, PgStat_MsgReplSlot::m_slotname, PgStat_MsgReplSlot::m_spill_bytes, PgStat_MsgReplSlot::m_spill_count, PgStat_MsgReplSlot::m_spill_txns, PgStat_MsgReplSlot::m_stream_bytes, PgStat_MsgReplSlot::m_stream_count, PgStat_MsgReplSlot::m_stream_txns, NAMEDATALEN, PGSTAT_MTYPE_REPLSLOT, pgstat_send(), pgstat_setheader(), and strlcpy().

Referenced by ReplicationSlotCreate(), and UpdateDecodingStats().

1778 {
1779  PgStat_MsgReplSlot msg;
1780 
1781  /*
1782  * Prepare and send the message
1783  */
1785  strlcpy(msg.m_slotname, slotname, NAMEDATALEN);
1786  msg.m_drop = false;
1787  msg.m_spill_txns = spilltxns;
1788  msg.m_spill_count = spillcount;
1789  msg.m_spill_bytes = spillbytes;
1790  msg.m_stream_txns = streamtxns;
1791  msg.m_stream_count = streamcount;
1792  msg.m_stream_bytes = streambytes;
1793  pgstat_send(&msg, sizeof(PgStat_MsgReplSlot));
1794 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4593
PgStat_Counter m_spill_bytes
Definition: pgstat.h:508
char m_slotname[NAMEDATALEN]
Definition: pgstat.h:504
PgStat_Counter m_stream_bytes
Definition: pgstat.h:511
#define NAMEDATALEN
PgStat_Counter m_spill_txns
Definition: pgstat.h:506
PgStat_Counter m_stream_txns
Definition: pgstat.h:509
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:45
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4580
PgStat_Counter m_spill_count
Definition: pgstat.h:507
PgStat_MsgHdr m_hdr
Definition: pgstat.h:503
PgStat_Counter m_stream_count
Definition: pgstat.h:510

◆ pgstat_report_replslot_drop()

void pgstat_report_replslot_drop ( const char *  slotname)

Definition at line 1803 of file pgstat.c.

References PgStat_MsgReplSlot::m_drop, PgStat_MsgReplSlot::m_hdr, PgStat_MsgReplSlot::m_slotname, NAMEDATALEN, PGSTAT_MTYPE_REPLSLOT, pgstat_send(), pgstat_setheader(), and strlcpy().

Referenced by ReplicationSlotDropPtr().

1804 {
1805  PgStat_MsgReplSlot msg;
1806 
1808  strlcpy(msg.m_slotname, slotname, NAMEDATALEN);
1809  msg.m_drop = true;
1810  pgstat_send(&msg, sizeof(PgStat_MsgReplSlot));
1811 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4593
char m_slotname[NAMEDATALEN]
Definition: pgstat.h:504
#define NAMEDATALEN
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:45
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4580
PgStat_MsgHdr m_hdr
Definition: pgstat.h:503

◆ pgstat_report_stat()

void pgstat_report_stat ( bool  force)

Definition at line 870 of file pgstat.c.

References Assert, B_BACKEND, GetCurrentTransactionStopTimestamp(), hash_destroy(), have_function_stats, i, InvalidOid, PgStat_MsgTabstat::m_databaseid, PgStat_MsgTabstat::m_entry, PgStat_MsgTabstat::m_nentries, MemSet, MyBackendType, MyDatabaseId, now(), PGSTAT_NUM_TABENTRIES, pgstat_send_connstats(), pgstat_send_funcstats(), pgstat_send_slru(), pgstat_send_tabstat(), pgstat_send_wal(), PGSTAT_STAT_INTERVAL, pgStatXactCommit, pgStatXactRollback, PgStat_TableStatus::t_counts, PgStat_TableEntry::t_counts, PgStat_TableStatus::t_id, PgStat_TableEntry::t_id, PgStat_TableStatus::t_shared, TimestampDifferenceExceeds(), PgStat_TableStatus::trans, TabStatusArray::tsa_entries, TabStatusArray::tsa_next, and TabStatusArray::tsa_used.

Referenced by apply_handle_commit_internal(), initialize_worker_spi(), LogicalRepSyncTableStart(), pg_attribute_noreturn(), pgstat_beshutdown_hook(), PostgresMain(), and process_syncing_tables_for_apply().

871 {
872  /* we assume this inits to all zeroes: */
873  static const PgStat_TableCounts all_zeroes;
874  static TimestampTz last_report = 0;
875 
877  PgStat_MsgTabstat regular_msg;
878  PgStat_MsgTabstat shared_msg;
879  TabStatusArray *tsa;
880  int i;
881 
882  /* Don't expend a clock check if nothing to do */
883  if ((pgStatTabList == NULL || pgStatTabList->tsa_used == 0) &&
884  pgStatXactCommit == 0 && pgStatXactRollback == 0 &&
885  !have_function_stats && !disconnect)
886  return;