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pgstat.h File Reference
#include "datatype/timestamp.h"
#include "fmgr.h"
#include "libpq/pqcomm.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_MsgAutovacStart
 
struct  PgStat_MsgVacuum
 
struct  PgStat_MsgAnalyze
 
struct  PgStat_MsgArchiver
 
struct  PgStat_MsgBgWriter
 
struct  PgStat_MsgRecoveryConflict
 
struct  PgStat_MsgTempFile
 
struct  PgStat_FunctionCounts
 
struct  PgStat_BackendFunctionEntry
 
struct  PgStat_FunctionEntry
 
struct  PgStat_MsgFuncstat
 
struct  PgStat_MsgFuncpurge
 
struct  PgStat_MsgDeadlock
 
union  PgStat_Msg
 
struct  PgStat_StatDBEntry
 
struct  PgStat_StatTabEntry
 
struct  PgStat_StatFuncEntry
 
struct  PgStat_ArchiverStats
 
struct  PgStat_GlobalStats
 
struct  PgBackendSSLStatus
 
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   0x01A5BC9D
 
#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   10
 
#define pgstat_increment_changecount_before(beentry)
 
#define pgstat_increment_changecount_after(beentry)
 
#define pgstat_save_changecount_before(beentry, save_changecount)
 
#define pgstat_save_changecount_after(beentry, save_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 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_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_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 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 enum BackendType BackendType
 
typedef enum BackendState BackendState
 
typedef enum ProgressCommandType ProgressCommandType
 
typedef struct PgBackendSSLStatus PgBackendSSLStatus
 
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  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_AUTOVAC_START, PGSTAT_MTYPE_VACUUM, PGSTAT_MTYPE_ANALYZE, PGSTAT_MTYPE_ARCHIVER,
  PGSTAT_MTYPE_BGWRITER, PGSTAT_MTYPE_FUNCSTAT, PGSTAT_MTYPE_FUNCPURGE, PGSTAT_MTYPE_RECOVERYCONFLICT,
  PGSTAT_MTYPE_TEMPFILE, PGSTAT_MTYPE_DEADLOCK
}
 
enum  PgStat_Shared_Reset_Target { RESET_ARCHIVER, RESET_BGWRITER }
 
enum  PgStat_Single_Reset_Type { RESET_TABLE, RESET_FUNCTION }
 
enum  BackendType {
  B_AUTOVAC_LAUNCHER, B_AUTOVAC_WORKER, B_BACKEND, B_BG_WORKER,
  B_BG_WRITER, B_CHECKPOINTER, B_STARTUP, B_WAL_RECEIVER,
  B_WAL_SENDER, B_WAL_WRITER
}
 
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_LAUNCHER_MAIN, WAIT_EVENT_LOGICAL_APPLY_MAIN, WAIT_EVENT_PGSTAT_MAIN,
  WAIT_EVENT_RECOVERY_WAL_ALL, 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_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_BGWORKER_SHUTDOWN = PG_WAIT_IPC, WAIT_EVENT_BGWORKER_STARTUP, WAIT_EVENT_BTREE_PAGE, WAIT_EVENT_EXECUTE_GATHER,
  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_FINISH, WAIT_EVENT_PARALLEL_BITMAP_SCAN,
  WAIT_EVENT_PROCARRAY_GROUP_UPDATE, WAIT_EVENT_CLOG_GROUP_UPDATE, WAIT_EVENT_REPLICATION_ORIGIN_DROP, WAIT_EVENT_REPLICATION_SLOT_DROP,
  WAIT_EVENT_SAFE_SNAPSHOT, WAIT_EVENT_SYNC_REP
}
 
enum  WaitEventTimeout { WAIT_EVENT_BASE_BACKUP_THROTTLE = PG_WAIT_TIMEOUT, WAIT_EVENT_PG_SLEEP, WAIT_EVENT_RECOVERY_APPLY_DELAY }
 
enum  WaitEventIO {
  WAIT_EVENT_BUFFILE_READ = PG_WAIT_IO, WAIT_EVENT_BUFFILE_WRITE, 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_METHOD_ASSIGN, WAIT_EVENT_WAL_WRITE
}
 
enum  ProgressCommandType { PROGRESS_COMMAND_INVALID, PROGRESS_COMMAND_VACUUM }
 

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_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_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)
 
const char * pgstat_get_backend_desc (BackendType backendType)
 
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 (FunctionCallInfoData *fcinfo, PgStat_FunctionCallUsage *fcu)
 
void pgstat_end_function_usage (PgStat_FunctionCallUsage *fcu, bool finalize)
 
void AtEOXact_PgStat (bool isCommit)
 
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)
 
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)
 

Variables

bool pgstat_track_activities
 
bool pgstat_track_counts
 
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_Counter pgStatBlockReadTime
 
PgStat_Counter pgStatBlockWriteTime
 

Macro Definition Documentation

#define PG_STAT_TMP_DIR   "pg_stat_tmp"

Definition at line 34 of file pgstat.h.

#define PG_WAIT_ACTIVITY   0x05000000U

Definition at line 740 of file pgstat.h.

Referenced by pgstat_get_wait_event(), and pgstat_get_wait_event_type().

#define PG_WAIT_BUFFER_PIN   0x04000000U
#define PG_WAIT_CLIENT   0x06000000U

Definition at line 741 of file pgstat.h.

Referenced by pgstat_get_wait_event(), and pgstat_get_wait_event_type().

#define PG_WAIT_IO   0x0A000000U

Definition at line 745 of file pgstat.h.

Referenced by pgstat_get_wait_event(), and pgstat_get_wait_event_type().

#define PG_WAIT_IPC   0x08000000U

Definition at line 743 of file pgstat.h.

Referenced by pgstat_get_wait_event(), and pgstat_get_wait_event_type().

#define PG_WAIT_LOCK   0x03000000U
#define PG_WAIT_LWLOCK   0x01000000U
#define PG_WAIT_TIMEOUT   0x09000000U

Definition at line 744 of file pgstat.h.

Referenced by pgstat_get_wait_event(), and pgstat_get_wait_event_type().

#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 1290 of file pgstat.h.

Referenced by ReadBufferExtended().

#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 1285 of file pgstat.h.

Referenced by ReadBufferExtended().

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

Definition at line 1295 of file pgstat.h.

Referenced by ReadBuffer_common().

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

Definition at line 1297 of file pgstat.h.

Referenced by FlushBuffer().

#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 1270 of file pgstat.h.

Referenced by BitmapHeapNext(), heap_fetch(), and index_fetch_heap().

#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 1265 of file pgstat.h.

Referenced by heap_getnext(), and tablesample_getnext().

#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 1260 of file pgstat.h.

Referenced by initscan().

#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 1275 of file pgstat.h.

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

#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 1280 of file pgstat.h.

Referenced by index_getbitmap(), and index_getnext_tid().

#define PGSTAT_FILE_FORMAT_ID   0x01A5BC9D
#define pgstat_increment_changecount_after (   beentry)
Value:
do { \
beentry->st_changecount++; \
Assert((beentry->st_changecount & 1) == 0); \
} while (0)
#define Assert(condition)
Definition: c.h:681
#define pg_write_barrier()
Definition: atomics.h:162

Definition at line 1047 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().

#define pgstat_increment_changecount_before (   beentry)
#define PGSTAT_MAX_MSG_SIZE   1000

Definition at line 206 of file pgstat.h.

Referenced by pgstat_init().

#define PGSTAT_MSG_PAYLOAD   (PGSTAT_MAX_MSG_SIZE - sizeof(PgStat_MsgHdr))

Definition at line 207 of file pgstat.h.

#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:207

Definition at line 493 of file pgstat.h.

Referenced by pgstat_send_funcstats().

#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:207

Definition at line 510 of file pgstat.h.

Referenced by pgstat_vacuum_stat().

#define PGSTAT_NUM_PROGRESS_PARAM   10
#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:74
unsigned int Oid
Definition: postgres_ext.h:31
struct PgStat_TableEntry PgStat_TableEntry
#define PGSTAT_MSG_PAYLOAD
Definition: pgstat.h:207

Definition at line 263 of file pgstat.h.

Referenced by pgstat_report_stat().

#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:207

Definition at line 285 of file pgstat.h.

Referenced by pgstat_vacuum_stat().

#define pgstat_save_changecount_after (   beentry,
  save_changecount 
)
Value:
do { \
save_changecount = beentry->st_changecount; \
} while (0)
#define pg_read_barrier()
Definition: atomics.h:161

Definition at line 1060 of file pgstat.h.

Referenced by pgstat_get_backend_current_activity(), and pgstat_read_current_status().

#define pgstat_save_changecount_before (   beentry,
  save_changecount 
)
Value:
do { \
save_changecount = beentry->st_changecount; \
} while (0)
#define pg_read_barrier()
Definition: atomics.h:161

Definition at line 1054 of file pgstat.h.

Referenced by pgstat_get_backend_current_activity(), and pgstat_read_current_status().

#define PGSTAT_STAT_PERMANENT_DIRECTORY   "pg_stat"

Definition at line 29 of file pgstat.h.

Referenced by get_dbstat_filename(), and pgstat_reset_all().

#define PGSTAT_STAT_PERMANENT_FILENAME   "pg_stat/global.stat"
#define PGSTAT_STAT_PERMANENT_TMPFILE   "pg_stat/global.tmp"

Definition at line 31 of file pgstat.h.

Referenced by pgstat_write_statsfiles().

Typedef Documentation

Definition at line 74 of file pgstat.h.

Enumeration Type Documentation

Enumerator
STATE_UNDEFINED 
STATE_IDLE 
STATE_RUNNING 
STATE_IDLEINTRANSACTION 
STATE_FASTPATH 
STATE_IDLEINTRANSACTION_ABORTED 
STATE_DISABLED 

Definition at line 721 of file pgstat.h.

Enumerator
B_AUTOVAC_LAUNCHER 
B_AUTOVAC_WORKER 
B_BACKEND 
B_BG_WORKER 
B_BG_WRITER 
B_CHECKPOINTER 
B_STARTUP 
B_WAL_RECEIVER 
B_WAL_SENDER 
B_WAL_WRITER 

Definition at line 702 of file pgstat.h.

Enumerator
RESET_ARCHIVER 
RESET_BGWRITER 

Definition at line 119 of file pgstat.h.

120 {
PgStat_Shared_Reset_Target
Definition: pgstat.h:119
Enumerator
RESET_TABLE 
RESET_FUNCTION 

Definition at line 126 of file pgstat.h.

127 {
128  RESET_TABLE,
PgStat_Single_Reset_Type
Definition: pgstat.h:126
Enumerator
PROGRESS_COMMAND_INVALID 
PROGRESS_COMMAND_VACUUM 

Definition at line 916 of file pgstat.h.

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_AUTOVAC_START 
PGSTAT_MTYPE_VACUUM 
PGSTAT_MTYPE_ANALYZE 
PGSTAT_MTYPE_ARCHIVER 
PGSTAT_MTYPE_BGWRITER 
PGSTAT_MTYPE_FUNCSTAT 
PGSTAT_MTYPE_FUNCPURGE 
PGSTAT_MTYPE_RECOVERYCONFLICT 
PGSTAT_MTYPE_TEMPFILE 
PGSTAT_MTYPE_DEADLOCK 

Definition at line 48 of file pgstat.h.

Enumerator
TRACK_FUNC_OFF 
TRACK_FUNC_PL 
TRACK_FUNC_ALL 

Definition at line 37 of file pgstat.h.

Enumerator
WAIT_EVENT_ARCHIVER_MAIN 
WAIT_EVENT_AUTOVACUUM_MAIN 
WAIT_EVENT_BGWRITER_HIBERNATE 
WAIT_EVENT_BGWRITER_MAIN 
WAIT_EVENT_CHECKPOINTER_MAIN 
WAIT_EVENT_LOGICAL_LAUNCHER_MAIN 
WAIT_EVENT_LOGICAL_APPLY_MAIN 
WAIT_EVENT_PGSTAT_MAIN 
WAIT_EVENT_RECOVERY_WAL_ALL 
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 755 of file pgstat.h.

Enumerator
WAIT_EVENT_CLIENT_READ 
WAIT_EVENT_CLIENT_WRITE 
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 781 of file pgstat.h.

Enumerator
WAIT_EVENT_BUFFILE_READ 
WAIT_EVENT_BUFFILE_WRITE 
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_METHOD_ASSIGN 
WAIT_EVENT_WAL_WRITE 

Definition at line 841 of file pgstat.h.

842 {
910 } WaitEventIO;
#define PG_WAIT_IO
Definition: pgstat.h:745
WaitEventIO
Definition: pgstat.h:841
Enumerator
WAIT_EVENT_BGWORKER_SHUTDOWN 
WAIT_EVENT_BGWORKER_STARTUP 
WAIT_EVENT_BTREE_PAGE 
WAIT_EVENT_EXECUTE_GATHER 
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_FINISH 
WAIT_EVENT_PARALLEL_BITMAP_SCAN 
WAIT_EVENT_PROCARRAY_GROUP_UPDATE 
WAIT_EVENT_CLOG_GROUP_UPDATE 
WAIT_EVENT_REPLICATION_ORIGIN_DROP 
WAIT_EVENT_REPLICATION_SLOT_DROP 
WAIT_EVENT_SAFE_SNAPSHOT 
WAIT_EVENT_SYNC_REP 

Definition at line 800 of file pgstat.h.

801 {
820 } WaitEventIPC;
WaitEventIPC
Definition: pgstat.h:800
#define PG_WAIT_IPC
Definition: pgstat.h:743
Enumerator
WAIT_EVENT_BASE_BACKUP_THROTTLE 
WAIT_EVENT_PG_SLEEP 
WAIT_EVENT_RECOVERY_APPLY_DELAY 

Definition at line 828 of file pgstat.h.

Function Documentation

void allow_immediate_pgstat_restart ( void  )

Definition at line 790 of file pgstat.c.

References last_pgstat_start_time.

Referenced by HandleChildCrash().

791 {
793 }
static time_t last_pgstat_start_time
Definition: pgstat.c:153
void AtEOSubXact_PgStat ( bool  isCommit,
int  nestDepth 
)

Definition at line 2136 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().

2137 {
2138  PgStat_SubXactStatus *xact_state;
2139 
2140  /*
2141  * Transfer transactional insert/update counts into the next higher
2142  * subtransaction state.
2143  */
2144  xact_state = pgStatXactStack;
2145  if (xact_state != NULL &&
2146  xact_state->nest_level >= nestDepth)
2147  {
2149  PgStat_TableXactStatus *next_trans;
2150 
2151  /* delink xact_state from stack immediately to simplify reuse case */
2152  pgStatXactStack = xact_state->prev;
2153 
2154  for (trans = xact_state->first; trans != NULL; trans = next_trans)
2155  {
2156  PgStat_TableStatus *tabstat;
2157 
2158  next_trans = trans->next;
2159  Assert(trans->nest_level == nestDepth);
2160  tabstat = trans->parent;
2161  Assert(tabstat->trans == trans);
2162  if (isCommit)
2163  {
2164  if (trans->upper && trans->upper->nest_level == nestDepth - 1)
2165  {
2166  if (trans->truncated)
2167  {
2168  /* propagate the truncate status one level up */
2170  /* replace upper xact stats with ours */
2171  trans->upper->tuples_inserted = trans->tuples_inserted;
2172  trans->upper->tuples_updated = trans->tuples_updated;
2173  trans->upper->tuples_deleted = trans->tuples_deleted;
2174  }
2175  else
2176  {
2177  trans->upper->tuples_inserted += trans->tuples_inserted;
2178  trans->upper->tuples_updated += trans->tuples_updated;
2179  trans->upper->tuples_deleted += trans->tuples_deleted;
2180  }
2181  tabstat->trans = trans->upper;
2182  pfree(trans);
2183  }
2184  else
2185  {
2186  /*
2187  * When there isn't an immediate parent state, we can just
2188  * reuse the record instead of going through a
2189  * palloc/pfree pushup (this works since it's all in
2190  * TopTransactionContext anyway). We have to re-link it
2191  * into the parent level, though, and that might mean
2192  * pushing a new entry into the pgStatXactStack.
2193  */
2194  PgStat_SubXactStatus *upper_xact_state;
2195 
2196  upper_xact_state = get_tabstat_stack_level(nestDepth - 1);
2197  trans->next = upper_xact_state->first;
2198  upper_xact_state->first = trans;
2199  trans->nest_level = nestDepth - 1;
2200  }
2201  }
2202  else
2203  {
2204  /*
2205  * On abort, update top-level tabstat counts, then forget the
2206  * subtransaction
2207  */
2208 
2209  /* first restore values obliterated by truncate */
2211  /* count attempted actions regardless of commit/abort */
2212  tabstat->t_counts.t_tuples_inserted += trans->tuples_inserted;
2213  tabstat->t_counts.t_tuples_updated += trans->tuples_updated;
2214  tabstat->t_counts.t_tuples_deleted += trans->tuples_deleted;
2215  /* inserted tuples are dead, deleted tuples are unaffected */
2216  tabstat->t_counts.t_delta_dead_tuples +=
2217  trans->tuples_inserted + trans->tuples_updated;
2218  tabstat->trans = trans->upper;
2219  pfree(trans);
2220  }
2221  }
2222  pfree(xact_state);
2223  }
2224 }
PgStat_Counter tuples_updated
Definition: pgstat.h:168
struct PgStat_TableXactStatus * next
Definition: pgstat.h:179
PgStat_TableCounts t_counts
Definition: pgstat.h:158
static PgStat_SubXactStatus * get_tabstat_stack_level(int nest_level)
Definition: pgstat.c:1858
void pfree(void *pointer)
Definition: mcxt.c:949
PgStat_Counter t_tuples_updated
Definition: pgstat.h:105
static void pgstat_truncate_restore_counters(PgStat_TableXactStatus *trans)
Definition: pgstat.c:1994
PgStat_Counter tuples_inserted
Definition: pgstat.h:167
PgStat_Counter t_delta_dead_tuples
Definition: pgstat.h:111
struct PgStat_TableXactStatus * upper
Definition: pgstat.h:176
PgStat_Counter t_tuples_deleted
Definition: pgstat.h:106
PgStat_Counter tuples_deleted
Definition: pgstat.h:169
struct PgStat_SubXactStatus * prev
Definition: pgstat.c:215
#define Assert(condition)
Definition: c.h:681
static PgStat_SubXactStatus * pgStatXactStack
Definition: pgstat.c:219
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:157
static zic_t trans[TZ_MAX_LEAPS]
Definition: zic.c:387
PgStat_TableXactStatus * first
Definition: pgstat.c:216
static void pgstat_truncate_save_counters(PgStat_TableXactStatus *trans)
Definition: pgstat.c:1979
PgStat_Counter t_tuples_inserted
Definition: pgstat.h:104
PgStat_TableStatus * parent
Definition: pgstat.h:177
void AtEOXact_PgStat ( bool  isCommit)

Definition at line 2053 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().

2054 {
2055  PgStat_SubXactStatus *xact_state;
2056 
2057  /*
2058  * Count transaction commit or abort. (We use counters, not just bools,
2059  * in case the reporting message isn't sent right away.)
2060  */
2061  if (isCommit)
2062  pgStatXactCommit++;
2063  else
2065 
2066  /*
2067  * Transfer transactional insert/update counts into the base tabstat
2068  * entries. We don't bother to free any of the transactional state, since
2069  * it's all in TopTransactionContext and will go away anyway.
2070  */
2071  xact_state = pgStatXactStack;
2072  if (xact_state != NULL)
2073  {
2075 
2076  Assert(xact_state->nest_level == 1);
2077  Assert(xact_state->prev == NULL);
2078  for (trans = xact_state->first; trans != NULL; trans = trans->next)
2079  {
2080  PgStat_TableStatus *tabstat;
2081 
2082  Assert(trans->nest_level == 1);
2083  Assert(trans->upper == NULL);
2084  tabstat = trans->parent;
2085  Assert(tabstat->trans == trans);
2086  /* restore pre-truncate stats (if any) in case of aborted xact */
2087  if (!isCommit)
2089  /* count attempted actions regardless of commit/abort */
2090  tabstat->t_counts.t_tuples_inserted += trans->tuples_inserted;
2091  tabstat->t_counts.t_tuples_updated += trans->tuples_updated;
2092  tabstat->t_counts.t_tuples_deleted += trans->tuples_deleted;
2093  if (isCommit)
2094  {
2095  tabstat->t_counts.t_truncated = trans->truncated;
2096  if (trans->truncated)
2097  {
2098  /* forget live/dead stats seen by backend thus far */
2099  tabstat->t_counts.t_delta_live_tuples = 0;
2100  tabstat->t_counts.t_delta_dead_tuples = 0;
2101  }
2102  /* insert adds a live tuple, delete removes one */
2103  tabstat->t_counts.t_delta_live_tuples +=
2104  trans->tuples_inserted - trans->tuples_deleted;
2105  /* update and delete each create a dead tuple */
2106  tabstat->t_counts.t_delta_dead_tuples +=
2107  trans->tuples_updated + trans->tuples_deleted;
2108  /* insert, update, delete each count as one change event */
2109  tabstat->t_counts.t_changed_tuples +=
2110  trans->tuples_inserted + trans->tuples_updated +
2111  trans->tuples_deleted;
2112  }
2113  else
2114  {
2115  /* inserted tuples are dead, deleted tuples are unaffected */
2116  tabstat->t_counts.t_delta_dead_tuples +=
2117  trans->tuples_inserted + trans->tuples_updated;
2118  /* an aborted xact generates no changed_tuple events */
2119  }
2120  tabstat->trans = NULL;
2121  }
2122  }
2123  pgStatXactStack = NULL;
2124 
2125  /* Make sure any stats snapshot is thrown away */
2127 }
PgStat_Counter t_delta_live_tuples
Definition: pgstat.h:110
PgStat_Counter tuples_updated
Definition: pgstat.h:168
static int pgStatXactCommit
Definition: pgstat.c:221
struct PgStat_TableXactStatus * next
Definition: pgstat.h:179
PgStat_TableCounts t_counts
Definition: pgstat.h:158
PgStat_Counter t_tuples_updated
Definition: pgstat.h:105
static void pgstat_truncate_restore_counters(PgStat_TableXactStatus *trans)
Definition: pgstat.c:1994
static int pgStatXactRollback
Definition: pgstat.c:222
PgStat_Counter tuples_inserted
Definition: pgstat.h:167
PgStat_Counter t_delta_dead_tuples
Definition: pgstat.h:111
struct PgStat_TableXactStatus * upper
Definition: pgstat.h:176
PgStat_Counter t_tuples_deleted
Definition: pgstat.h:106
PgStat_Counter tuples_deleted
Definition: pgstat.h:169
struct PgStat_SubXactStatus * prev
Definition: pgstat.c:215
PgStat_Counter t_changed_tuples
Definition: pgstat.h:112
#define Assert(condition)
Definition: c.h:681
void pgstat_clear_snapshot(void)
Definition: pgstat.c:5560
static PgStat_SubXactStatus * pgStatXactStack
Definition: pgstat.c:219
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:157
static zic_t trans[TZ_MAX_LEAPS]
Definition: zic.c:387
PgStat_TableXactStatus * first
Definition: pgstat.c:216
PgStat_Counter t_tuples_inserted
Definition: pgstat.h:104
PgStat_TableStatus * parent
Definition: pgstat.h:177
void AtPrepare_PgStat ( void  )

Definition at line 2235 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().

2236 {
2237  PgStat_SubXactStatus *xact_state;
2238 
2239  xact_state = pgStatXactStack;
2240  if (xact_state != NULL)
2241  {
2243 
2244  Assert(xact_state->nest_level == 1);
2245  Assert(xact_state->prev == NULL);
2246  for (trans = xact_state->first; trans != NULL; trans = trans->next)
2247  {
2248  PgStat_TableStatus *tabstat;
2249  TwoPhasePgStatRecord record;
2250 
2251  Assert(trans->nest_level == 1);
2252  Assert(trans->upper == NULL);
2253  tabstat = trans->parent;
2254  Assert(tabstat->trans == trans);
2255 
2256  record.tuples_inserted = trans->tuples_inserted;
2257  record.tuples_updated = trans->tuples_updated;
2258  record.tuples_deleted = trans->tuples_deleted;
2259  record.inserted_pre_trunc = trans->inserted_pre_trunc;
2260  record.updated_pre_trunc = trans->updated_pre_trunc;
2261  record.deleted_pre_trunc = trans->deleted_pre_trunc;
2262  record.t_id = tabstat->t_id;
2263  record.t_shared = tabstat->t_shared;
2264  record.t_truncated = trans->truncated;
2265 
2267  &record, sizeof(TwoPhasePgStatRecord));
2268  }
2269  }
2270 }
PgStat_Counter tuples_updated
Definition: pgstat.h:168
struct PgStat_TableXactStatus * next
Definition: pgstat.h:179
PgStat_Counter deleted_pre_trunc
Definition: pgstat.h:173
PgStat_Counter deleted_pre_trunc
Definition: pgstat.c:234
void RegisterTwoPhaseRecord(TwoPhaseRmgrId rmid, uint16 info, const void *data, uint32 len)
Definition: twophase.c:1164
PgStat_Counter tuples_inserted
Definition: pgstat.h:167
PgStat_Counter updated_pre_trunc
Definition: pgstat.c:233
PgStat_Counter inserted_pre_trunc
Definition: pgstat.c:232
struct PgStat_TableXactStatus * upper
Definition: pgstat.h:176
PgStat_Counter tuples_updated
Definition: pgstat.c:230
PgStat_Counter tuples_deleted
Definition: pgstat.h:169
struct PgStat_SubXactStatus * prev
Definition: pgstat.c:215
#define Assert(condition)
Definition: c.h:681
PgStat_Counter inserted_pre_trunc
Definition: pgstat.h:171
PgStat_Counter tuples_inserted
Definition: pgstat.c:229
static PgStat_SubXactStatus * pgStatXactStack
Definition: pgstat.c:219
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:157
PgStat_Counter tuples_deleted
Definition: pgstat.c:231
#define TWOPHASE_RM_PGSTAT_ID
Definition: twophase_rmgr.h:26
PgStat_Counter updated_pre_trunc
Definition: pgstat.h:172
static zic_t trans[TZ_MAX_LEAPS]
Definition: zic.c:387
PgStat_TableXactStatus * first
Definition: pgstat.c:216
PgStat_TableStatus * parent
Definition: pgstat.h:177
Size BackendStatusShmemSize ( void  )

Definition at line 2604 of file pgstat.c.

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

Referenced by CreateSharedMemoryAndSemaphores().

2605 {
2606  Size size;
2607 
2608  /* BackendStatusArray: */
2609  size = mul_size(sizeof(PgBackendStatus), NumBackendStatSlots);
2610  /* BackendAppnameBuffer: */
2611  size = add_size(size,
2613  /* BackendClientHostnameBuffer: */
2614  size = add_size(size,
2616  /* BackendActivityBuffer: */
2617  size = add_size(size,
2619 #ifdef USE_SSL
2620  /* BackendSslStatusBuffer: */
2621  size = add_size(size,
2623 #endif
2624  return size;
2625 }
#define NumBackendStatSlots
Definition: pgstat.c:118
#define NAMEDATALEN
int pgstat_track_activity_query_size
Definition: pgstat.c:128
Size mul_size(Size s1, Size s2)
Definition: shmem.c:492
Size add_size(Size s1, Size s2)
Definition: shmem.c:475
size_t Size
Definition: c.h:350
void CreateSharedBackendStatus ( void  )

Definition at line 2632 of file pgstat.c.

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

Referenced by CreateSharedMemoryAndSemaphores().

2633 {
2634  Size size;
2635  bool found;
2636  int i;
2637  char *buffer;
2638 
2639  /* Create or attach to the shared array */
2640  size = mul_size(sizeof(PgBackendStatus), NumBackendStatSlots);
2642  ShmemInitStruct("Backend Status Array", size, &found);
2643 
2644  if (!found)
2645  {
2646  /*
2647  * We're the first - initialize.
2648  */
2649  MemSet(BackendStatusArray, 0, size);
2650  }
2651 
2652  /* Create or attach to the shared appname buffer */
2653  size = mul_size(NAMEDATALEN, MaxBackends);
2654  BackendAppnameBuffer = (char *)
2655  ShmemInitStruct("Backend Application Name Buffer", size, &found);
2656 
2657  if (!found)
2658  {
2659  MemSet(BackendAppnameBuffer, 0, size);
2660 
2661  /* Initialize st_appname pointers. */
2662  buffer = BackendAppnameBuffer;
2663  for (i = 0; i < NumBackendStatSlots; i++)
2664  {
2666  buffer += NAMEDATALEN;
2667  }
2668  }
2669 
2670  /* Create or attach to the shared client hostname buffer */
2671  size = mul_size(NAMEDATALEN, MaxBackends);
2672  BackendClientHostnameBuffer = (char *)
2673  ShmemInitStruct("Backend Client Host Name Buffer", size, &found);
2674 
2675  if (!found)
2676  {
2678 
2679  /* Initialize st_clienthostname pointers. */
2680  buffer = BackendClientHostnameBuffer;
2681  for (i = 0; i < NumBackendStatSlots; i++)
2682  {
2684  buffer += NAMEDATALEN;
2685  }
2686  }
2687 
2688  /* Create or attach to the shared activity buffer */
2691  BackendActivityBuffer = (char *)
2692  ShmemInitStruct("Backend Activity Buffer",
2694  &found);
2695 
2696  if (!found)
2697  {
2698  MemSet(BackendActivityBuffer, 0, size);
2699 
2700  /* Initialize st_activity pointers. */
2701  buffer = BackendActivityBuffer;
2702  for (i = 0; i < NumBackendStatSlots; i++)
2703  {
2706  }
2707  }
2708 
2709 #ifdef USE_SSL
2710  /* Create or attach to the shared SSL status buffer */
2712  BackendSslStatusBuffer = (PgBackendSSLStatus *)
2713  ShmemInitStruct("Backend SSL Status Buffer", size, &found);
2714 
2715  if (!found)
2716  {
2717  PgBackendSSLStatus *ptr;
2718 
2719  MemSet(BackendSslStatusBuffer, 0, size);
2720 
2721  /* Initialize st_sslstatus pointers. */
2722  ptr = BackendSslStatusBuffer;
2723  for (i = 0; i < NumBackendStatSlots; i++)
2724  {
2726  ptr++;
2727  }
2728  }
2729 #endif
2730 }
static PgBackendStatus * BackendStatusArray
Definition: pgstat.c:2589
static char * BackendActivityBuffer
Definition: pgstat.c:2593
static Size BackendActivityBufferSize
Definition: pgstat.c:2594
#define MemSet(start, val, len)
Definition: c.h:863
#define NumBackendStatSlots
Definition: pgstat.c:118
char * st_clienthostname
Definition: pgstat.h:994
#define NAMEDATALEN
static char * BackendAppnameBuffer
Definition: pgstat.c:2591
void * ShmemInitStruct(const char *name, Size size, bool *foundPtr)
Definition: shmem.c:372
int MaxBackends
Definition: globals.c:126
char * st_activity_raw
Definition: pgstat.h:1013
int pgstat_track_activity_query_size
Definition: pgstat.c:128
char * st_appname
Definition: pgstat.h:1004
Size mul_size(Size s1, Size s2)
Definition: shmem.c:492
WalTimeSample buffer[LAG_TRACKER_BUFFER_SIZE]
Definition: walsender.c:214
size_t Size
Definition: c.h:350
int i
PgBackendSSLStatus * st_sslstatus
Definition: pgstat.h:998
static char * BackendClientHostnameBuffer
Definition: pgstat.c:2592
PgStat_BackendFunctionEntry* find_funcstat_entry ( Oid  func_id)

Definition at line 1633 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().

1634 {
1635  if (pgStatFunctions == NULL)
1636  return NULL;
1637 
1639  (void *) &func_id,
1640  HASH_FIND, NULL);
1641 }
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:902
static HTAB * pgStatFunctions
Definition: pgstat.c:197
PgStat_TableStatus* find_tabstat_entry ( Oid  rel_id)

Definition at line 1838 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().

1839 {
1840  TabStatHashEntry *hash_entry;
1841 
1842  /* If hashtable doesn't exist, there are no entries at all */
1843  if (!pgStatTabHash)
1844  return NULL;
1845 
1846  hash_entry = hash_search(pgStatTabHash, &rel_id, HASH_FIND, NULL);
1847  if (!hash_entry)
1848  return NULL;
1849 
1850  /* Note that this step could also return NULL, but that's correct */
1851  return hash_entry->tsa_entry;
1852 }
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:902
static HTAB * pgStatTabHash
Definition: pgstat.c:191
PgStat_TableStatus * tsa_entry
Definition: pgstat.c:185
void pgstat_bestart ( void  )

Definition at line 2785 of file pgstat.c.

References am_walsender, application_name, Assert, B_AUTOVAC_LAUNCHER, B_AUTOVAC_WORKER, B_BACKEND, B_BG_WORKER, B_BG_WRITER, B_CHECKPOINTER, B_STARTUP, B_WAL_RECEIVER, B_WAL_SENDER, B_WAL_WRITER, be_tls_get_cipher(), be_tls_get_cipher_bits(), be_tls_get_compression(), be_tls_get_peerdn_name(), be_tls_get_version(), BgWriterProcess, CheckpointerProcess, elog, FATAL, GetCurrentTimestamp(), GetSessionUserId(), InvalidBackendId, InvalidOid, IsAutoVacuumLauncherProcess(), IsAutoVacuumWorkerProcess(), IsBackgroundWorker, MemSet, MyAuxProcType, MyBackendId, MyBEEntry, MyDatabaseId, MyProcPid, MyProcPort, NAMEDATALEN, NotAnAuxProcess, pgstat_increment_changecount_after, pgstat_increment_changecount_before, pgstat_report_appname(), pgstat_track_activity_query_size, proc_exit(), PROGRESS_COMMAND_INVALID, Port::raddr, Port::remote_hostname, Port::SessionStartTime, PgBackendSSLStatus::ssl_bits, PgBackendSSLStatus::ssl_cipher, PgBackendSSLStatus::ssl_clientdn, PgBackendSSLStatus::ssl_compression, 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_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, StartupProcess, STATE_UNDEFINED, strlcpy(), WalReceiverProcess, and WalWriterProcess.

Referenced by AuxiliaryProcessMain(), and InitPostgres().

2786 {
2787  TimestampTz proc_start_timestamp;
2788  SockAddr clientaddr;
2789  volatile PgBackendStatus *beentry;
2790 
2791  /*
2792  * To minimize the time spent modifying the PgBackendStatus entry, fetch
2793  * all the needed data first.
2794  *
2795  * If we have a MyProcPort, use its session start time (for consistency,
2796  * and to save a kernel call).
2797  */
2798  if (MyProcPort)
2799  proc_start_timestamp = MyProcPort->SessionStartTime;
2800  else
2801  proc_start_timestamp = GetCurrentTimestamp();
2802 
2803  /*
2804  * We may not have a MyProcPort (eg, if this is the autovacuum process).
2805  * If so, use all-zeroes client address, which is dealt with specially in
2806  * pg_stat_get_backend_client_addr and pg_stat_get_backend_client_port.
2807  */
2808  if (MyProcPort)
2809  memcpy(&clientaddr, &MyProcPort->raddr, sizeof(clientaddr));
2810  else
2811  MemSet(&clientaddr, 0, sizeof(clientaddr));
2812 
2813  /*
2814  * Initialize my status entry, following the protocol of bumping
2815  * st_changecount before and after; and make sure it's even afterwards. We
2816  * use a volatile pointer here to ensure the compiler doesn't try to get
2817  * cute.
2818  */
2819  beentry = MyBEEntry;
2820 
2821  /* pgstats state must be initialized from pgstat_initialize() */
2822  Assert(beentry != NULL);
2823 
2825  {
2827  {
2828  /* Autovacuum Launcher */
2830  }
2831  else if (IsAutoVacuumWorkerProcess())
2832  {
2833  /* Autovacuum Worker */
2834  beentry->st_backendType = B_AUTOVAC_WORKER;
2835  }
2836  else if (am_walsender)
2837  {
2838  /* Wal sender */
2839  beentry->st_backendType = B_WAL_SENDER;
2840  }
2841  else if (IsBackgroundWorker)
2842  {
2843  /* bgworker */
2844  beentry->st_backendType = B_BG_WORKER;
2845  }
2846  else
2847  {
2848  /* client-backend */
2849  beentry->st_backendType = B_BACKEND;
2850  }
2851  }
2852  else
2853  {
2854  /* Must be an auxiliary process */
2856  switch (MyAuxProcType)
2857  {
2858  case StartupProcess:
2859  beentry->st_backendType = B_STARTUP;
2860  break;
2861  case BgWriterProcess:
2862  beentry->st_backendType = B_BG_WRITER;
2863  break;
2864  case CheckpointerProcess:
2865  beentry->st_backendType = B_CHECKPOINTER;
2866  break;
2867  case WalWriterProcess:
2868  beentry->st_backendType = B_WAL_WRITER;
2869  break;
2870  case WalReceiverProcess:
2871  beentry->st_backendType = B_WAL_RECEIVER;
2872  break;
2873  default:
2874  elog(FATAL, "unrecognized process type: %d",
2875  (int) MyAuxProcType);
2876  proc_exit(1);
2877  }
2878  }
2879 
2880  do
2881  {
2883  } while ((beentry->st_changecount & 1) == 0);
2884 
2885  beentry->st_procpid = MyProcPid;
2886  beentry->st_proc_start_timestamp = proc_start_timestamp;
2887  beentry->st_activity_start_timestamp = 0;
2888  beentry->st_state_start_timestamp = 0;
2889  beentry->st_xact_start_timestamp = 0;
2890  beentry->st_databaseid = MyDatabaseId;
2891 
2892  /* We have userid for client-backends, wal-sender and bgworker processes */
2893  if (beentry->st_backendType == B_BACKEND
2894  || beentry->st_backendType == B_WAL_SENDER
2895  || beentry->st_backendType == B_BG_WORKER)
2896  beentry->st_userid = GetSessionUserId();
2897  else
2898  beentry->st_userid = InvalidOid;
2899 
2900  beentry->st_clientaddr = clientaddr;
2903  NAMEDATALEN);
2904  else
2905  beentry->st_clienthostname[0] = '\0';
2906 #ifdef USE_SSL
2907  if (MyProcPort && MyProcPort->ssl != NULL)
2908  {
2909  beentry->st_ssl = true;
2915  }
2916  else
2917  {
2918  beentry->st_ssl = false;
2919  }
2920 #else
2921  beentry->st_ssl = false;
2922 #endif
2923  beentry->st_state = STATE_UNDEFINED;
2924  beentry->st_appname[0] = '\0';
2925  beentry->st_activity_raw[0] = '\0';
2926  /* Also make sure the last byte in each string area is always 0 */
2927  beentry->st_clienthostname[NAMEDATALEN - 1] = '\0';
2928  beentry->st_appname[NAMEDATALEN - 1] = '\0';
2932 
2933  /*
2934  * we don't zero st_progress_param here to save cycles; nobody should
2935  * examine it until st_progress_command has been set to something other
2936  * than PROGRESS_COMMAND_INVALID
2937  */
2938 
2940 
2941  /* Update app name to current GUC setting */
2942  if (application_name)
2944 }
bool ssl_compression
Definition: pgstat.h:940
char ssl_cipher[NAMEDATALEN]
Definition: pgstat.h:942
Oid st_progress_command_target
Definition: pgstat.h:1025
int MyProcPid
Definition: globals.c:39
BackendId MyBackendId
Definition: globals.c:73
struct Port * MyProcPort
Definition: globals.c:41
TimestampTz st_activity_start_timestamp
Definition: pgstat.h:987
TimestampTz GetCurrentTimestamp(void)
Definition: timestamp.c:1570
int64 TimestampTz
Definition: timestamp.h:39
char ssl_version[NAMEDATALEN]
Definition: pgstat.h:941
SockAddr st_clientaddr
Definition: pgstat.h:993
void proc_exit(int code)
Definition: ipc.c:99
#define MemSet(start, val, len)
Definition: c.h:863
ProgressCommandType st_progress_command
Definition: pgstat.h:1024
BackendState st_state
Definition: pgstat.h:1001
char * st_clienthostname
Definition: pgstat.h:994
Oid GetSessionUserId(void)
Definition: miscinit.c:318
bool IsBackgroundWorker
Definition: globals.c:103
Oid st_databaseid
Definition: pgstat.h:991
#define NAMEDATALEN
char * remote_hostname
Definition: libpq-be.h:124
SockAddr raddr
Definition: libpq-be.h:122
bool am_walsender
Definition: walsender.c:114
bool be_tls_get_compression(Port *port)
#define FATAL
Definition: elog.h:52
TimestampTz SessionStartTime
Definition: libpq-be.h:151
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2590
#define pgstat_increment_changecount_before(beentry)
Definition: pgstat.h:1041
char * st_activity_raw
Definition: pgstat.h:1013
int pgstat_track_activity_query_size
Definition: pgstat.c:128
TimestampTz st_state_start_timestamp
Definition: pgstat.h:988
#define pgstat_increment_changecount_after(beentry)
Definition: pgstat.h:1047
bool IsAutoVacuumWorkerProcess(void)
Definition: autovacuum.c:3256
char * st_appname
Definition: pgstat.h:1004
#define InvalidBackendId
Definition: backendid.h:23
int be_tls_get_cipher_bits(Port *port)
AuxProcType MyAuxProcType
Definition: bootstrap.c:69
Oid MyDatabaseId
Definition: globals.c:77
BackendType st_backendType
Definition: pgstat.h:982
void be_tls_get_version(Port *port, char *ptr, size_t len)
void pgstat_report_appname(const char *appname)
Definition: pgstat.c:3167
#define InvalidOid
Definition: postgres_ext.h:36
void be_tls_get_peerdn_name(Port *port, char *ptr, size_t len)
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:45
bool IsAutoVacuumLauncherProcess(void)
Definition: autovacuum.c:3250
#define Assert(condition)
Definition: c.h:681
int st_procpid
Definition: pgstat.h:979
char * application_name
Definition: guc.c:469
void be_tls_get_cipher(Port *port, char *ptr, size_t len)
TimestampTz st_xact_start_timestamp
Definition: pgstat.h:986
int st_changecount
Definition: pgstat.h:976
#define elog
Definition: elog.h:219
TimestampTz st_proc_start_timestamp
Definition: pgstat.h:985
PgBackendSSLStatus * st_sslstatus
Definition: pgstat.h:998
char ssl_clientdn[NAMEDATALEN]
Definition: pgstat.h:943
void pgstat_clear_snapshot ( void  )

Definition at line 5560 of file pgstat.c.

References localNumBackends, and MemoryContextDelete().

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

5561 {
5562  /* Release memory, if any was allocated */
5563  if (pgStatLocalContext)
5565 
5566  /* Reset variables */
5567  pgStatLocalContext = NULL;
5568  pgStatDBHash = NULL;
5569  localBackendStatusTable = NULL;
5570  localNumBackends = 0;
5571 }
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:200
static LocalPgBackendStatus * localBackendStatusTable
Definition: pgstat.c:247
static HTAB * pgStatDBHash
Definition: pgstat.c:244
static int localNumBackends
Definition: pgstat.c:250
static MemoryContext pgStatLocalContext
Definition: pgstat.c:243
char* pgstat_clip_activity ( const char *  raw_activity)

Definition at line 6291 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().

6292 {
6293  char *activity;
6294  int rawlen;
6295  int cliplen;
6296 
6297  /*
6298  * Some callers, like pgstat_get_backend_current_activity(), do not
6299  * guarantee that the buffer isn't concurrently modified. We try to take
6300  * care that the buffer is always terminated by a NUL byte regardless, but
6301  * let's still be paranoid about the string's length. In those cases the
6302  * underlying buffer is guaranteed to be pgstat_track_activity_query_size
6303  * large.
6304  */
6305  activity = pnstrdup(raw_activity, pgstat_track_activity_query_size - 1);
6306 
6307  /* now double-guaranteed to be NUL terminated */
6308  rawlen = strlen(activity);
6309 
6310  /*
6311  * All supported server-encodings make it possible to determine the length
6312  * of a multi-byte character from its first byte (this is not the case for
6313  * client encodings, see GB18030). As st_activity is always stored using
6314  * server encoding, this allows us to perform multi-byte aware truncation,
6315  * even if the string earlier was truncated in the middle of a multi-byte
6316  * character.
6317  */
6318  cliplen = pg_mbcliplen(activity, rawlen,
6320 
6321  activity[cliplen] = '\0';
6322 
6323  return activity;
6324 }
char * pnstrdup(const char *in, Size len)
Definition: mcxt.c:1087
int pg_mbcliplen(const char *mbstr, int len, int limit)
Definition: mbutils.c:820
int pgstat_track_activity_query_size
Definition: pgstat.c:128
static int cliplen(const char *str, int len, int limit)
Definition: mbutils.c:887
void pgstat_count_heap_delete ( Relation  rel)

Definition at line 1953 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().

1954 {
1955  PgStat_TableStatus *pgstat_info = rel->pgstat_info;
1956 
1957  if (pgstat_info != NULL)
1958  {
1959  /* We have to log the effect at the proper transactional level */
1960  int nest_level = GetCurrentTransactionNestLevel();
1961 
1962  if (pgstat_info->trans == NULL ||
1963  pgstat_info->trans->nest_level != nest_level)
1964  add_tabstat_xact_level(pgstat_info, nest_level);
1965 
1966  pgstat_info->trans->tuples_deleted++;
1967  }
1968 }
PgStat_Counter tuples_deleted
Definition: pgstat.h:169
int GetCurrentTransactionNestLevel(void)
Definition: xact.c:754
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:218
static void add_tabstat_xact_level(PgStat_TableStatus *pgstat_info, int nest_level)
Definition: pgstat.c:1880
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:157
void pgstat_count_heap_insert ( Relation  rel,
PgStat_Counter  n 
)

Definition at line 1907 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().

1908 {
1909  PgStat_TableStatus *pgstat_info = rel->pgstat_info;
1910 
1911  if (pgstat_info != NULL)
1912  {
1913  /* We have to log the effect at the proper transactional level */
1914  int nest_level = GetCurrentTransactionNestLevel();
1915 
1916  if (pgstat_info->trans == NULL ||
1917  pgstat_info->trans->nest_level != nest_level)
1918  add_tabstat_xact_level(pgstat_info, nest_level);
1919 
1920  pgstat_info->trans->tuples_inserted += n;
1921  }
1922 }
PgStat_Counter tuples_inserted
Definition: pgstat.h:167
int GetCurrentTransactionNestLevel(void)
Definition: xact.c:754
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:218
static void add_tabstat_xact_level(PgStat_TableStatus *pgstat_info, int nest_level)
Definition: pgstat.c:1880
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:157
void pgstat_count_heap_update ( Relation  rel,
bool  hot 
)

Definition at line 1928 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().

1929 {
1930  PgStat_TableStatus *pgstat_info = rel->pgstat_info;
1931 
1932  if (pgstat_info != NULL)
1933  {
1934  /* We have to log the effect at the proper transactional level */
1935  int nest_level = GetCurrentTransactionNestLevel();
1936 
1937  if (pgstat_info->trans == NULL ||
1938  pgstat_info->trans->nest_level != nest_level)
1939  add_tabstat_xact_level(pgstat_info, nest_level);
1940 
1941  pgstat_info->trans->tuples_updated++;
1942 
1943  /* t_tuples_hot_updated is nontransactional, so just advance it */
1944  if (hot)
1945  pgstat_info->t_counts.t_tuples_hot_updated++;
1946  }
1947 }
PgStat_Counter tuples_updated
Definition: pgstat.h:168
PgStat_Counter t_tuples_hot_updated
Definition: pgstat.h:107
PgStat_TableCounts t_counts
Definition: pgstat.h:158
int GetCurrentTransactionNestLevel(void)
Definition: xact.c:754
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:218
static void add_tabstat_xact_level(PgStat_TableStatus *pgstat_info, int nest_level)
Definition: pgstat.c:1880
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:157
void pgstat_count_truncate ( Relation  rel)

Definition at line 2008 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 ExecuteTruncate().

2009 {
2010  PgStat_TableStatus *pgstat_info = rel->pgstat_info;
2011 
2012  if (pgstat_info != NULL)
2013  {
2014  /* We have to log the effect at the proper transactional level */
2015  int nest_level = GetCurrentTransactionNestLevel();
2016 
2017  if (pgstat_info->trans == NULL ||
2018  pgstat_info->trans->nest_level != nest_level)
2019  add_tabstat_xact_level(pgstat_info, nest_level);
2020 
2021  pgstat_truncate_save_counters(pgstat_info->trans);
2022  pgstat_info->trans->tuples_inserted = 0;
2023  pgstat_info->trans->tuples_updated = 0;
2024  pgstat_info->trans->tuples_deleted = 0;
2025  }
2026 }
PgStat_Counter tuples_updated
Definition: pgstat.h:168
PgStat_Counter tuples_inserted
Definition: pgstat.h:167
PgStat_Counter tuples_deleted
Definition: pgstat.h:169
int GetCurrentTransactionNestLevel(void)
Definition: xact.c:754
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:218
static void add_tabstat_xact_level(PgStat_TableStatus *pgstat_info, int nest_level)
Definition: pgstat.c:1880
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:157
static void pgstat_truncate_save_counters(PgStat_TableXactStatus *trans)
Definition: pgstat.c:1979
void pgstat_drop_database ( Oid  databaseid)

Definition at line 1250 of file pgstat.c.

References PgStat_MsgDropdb::m_databaseid, PgStat_MsgDropdb::m_hdr, PGINVALID_SOCKET, PGSTAT_MTYPE_DROPDB, pgstat_send(), pgstat_setheader(), and pgStatSock.

Referenced by dropdb(), and pgstat_vacuum_stat().

1251 {
1252  PgStat_MsgDropdb msg;
1253 
1255  return;
1256 
1258  msg.m_databaseid = databaseid;
1259  pgstat_send(&msg, sizeof(msg));
1260 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
Oid m_databaseid
Definition: pgstat.h:306
PgStat_MsgHdr m_hdr
Definition: pgstat.h:305
#define PGINVALID_SOCKET
Definition: port.h:24
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
void pgstat_end_function_usage ( PgStat_FunctionCallUsage fcu,
bool  finalize 
)

Definition at line 1653 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(), ExecInterpExpr(), ExecMakeFunctionResultSet(), ExecMakeTableFunctionResult(), and fmgr_security_definer().

1654 {
1655  PgStat_FunctionCounts *fs = fcu->fs;
1656  instr_time f_total;
1657  instr_time f_others;
1658  instr_time f_self;
1659 
1660  /* stats not wanted? */
1661  if (fs == NULL)
1662  return;
1663 
1664  /* total elapsed time in this function call */
1665  INSTR_TIME_SET_CURRENT(f_total);
1666  INSTR_TIME_SUBTRACT(f_total, fcu->f_start);
1667 
1668  /* self usage: elapsed minus anything already charged to other calls */
1669  f_others = total_func_time;
1670  INSTR_TIME_SUBTRACT(f_others, fcu->save_total);
1671  f_self = f_total;
1672  INSTR_TIME_SUBTRACT(f_self, f_others);
1673 
1674  /* update backend-wide total time */
1676 
1677  /*
1678  * Compute the new f_total_time as the total elapsed time added to the
1679  * pre-call value of f_total_time. This is necessary to avoid
1680  * double-counting any time taken by recursive calls of myself. (We do
1681  * not need any similar kluge for self time, since that already excludes
1682  * any recursive calls.)
1683  */
1684  INSTR_TIME_ADD(f_total, fcu->save_f_total_time);
1685 
1686  /* update counters in function stats table */
1687  if (finalize)
1688  fs->f_numcalls++;
1689  fs->f_total_time = f_total;
1690  INSTR_TIME_ADD(fs->f_self_time, f_self);
1691 
1692  /* indicate that we have something to send */
1693  have_function_stats = true;
1694 }
instr_time f_self_time
Definition: pgstat.h:463
instr_time save_total
Definition: pgstat.h:1105
struct timeval instr_time
Definition: instr_time.h:147
instr_time f_total_time
Definition: pgstat.h:462
PgStat_FunctionCounts * fs
Definition: pgstat.h:1101
PgStat_Counter f_numcalls
Definition: pgstat.h:461
#define INSTR_TIME_SUBTRACT(x, y)
Definition: instr_time.h:167
#define INSTR_TIME_ADD(x, y)
Definition: instr_time.h:155
static instr_time total_func_time
Definition: pgstat.c:276
static bool have_function_stats
Definition: pgstat.c:203
#define INSTR_TIME_SET_CURRENT(t)
Definition: instr_time.h:153
instr_time save_f_total_time
Definition: pgstat.h:1103
PgStat_ArchiverStats* pgstat_fetch_stat_archiver ( void  )

Definition at line 2559 of file pgstat.c.

References archiverStats, and backend_read_statsfile().

Referenced by pg_stat_get_archiver().

2560 {
2562 
2563  return &archiverStats;
2564 }
static void backend_read_statsfile(void)
Definition: pgstat.c:5406
static PgStat_ArchiverStats archiverStats
Definition: pgstat.c:257
PgStat_StatDBEntry* pgstat_fetch_stat_dbentry ( Oid  dbid)

Definition at line 2387 of file pgstat.c.

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

Referenced by do_autovacuum(), do_start_worker(), 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_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_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 table_recheck_autovac().

2388 {
2389  /*
2390  * If not done for this transaction, read the statistics collector stats
2391  * file into some hash tables.
2392  */
2394 
2395  /*
2396  * Lookup the requested database; return NULL if not found
2397  */
2399  (void *) &dbid,
2400  HASH_FIND, NULL);
2401 }
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:902
static void backend_read_statsfile(void)
Definition: pgstat.c:5406
static HTAB * pgStatDBHash
Definition: pgstat.c:244
PgStat_StatFuncEntry* pgstat_fetch_stat_funcentry ( Oid  funcid)

Definition at line 2470 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().

2471 {
2472  PgStat_StatDBEntry *dbentry;
2473  PgStat_StatFuncEntry *funcentry = NULL;
2474 
2475  /* load the stats file if needed */
2477 
2478  /* Lookup our database, then find the requested function. */
2480  if (dbentry != NULL && dbentry->functions != NULL)
2481  {
2482  funcentry = (PgStat_StatFuncEntry *) hash_search(dbentry->functions,
2483  (void *) &func_id,
2484  HASH_FIND, NULL);
2485  }
2486 
2487  return funcentry;
2488 }
HTAB * functions
Definition: pgstat.h:607
PgStat_StatDBEntry * pgstat_fetch_stat_dbentry(Oid dbid)
Definition: pgstat.c:2387
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:902
static void backend_read_statsfile(void)
Definition: pgstat.c:5406
Oid MyDatabaseId
Definition: globals.c:77
LocalPgBackendStatus* pgstat_fetch_stat_local_beentry ( int  beid)

Definition at line 2524 of file pgstat.c.

References localNumBackends, and pgstat_read_current_status().

Referenced by pg_stat_get_activity(), and pg_stat_get_progress_info().

2525 {
2527 
2528  if (beid < 1 || beid > localNumBackends)
2529  return NULL;
2530 
2531  return &localBackendStatusTable[beid - 1];
2532 }
static void pgstat_read_current_status(void)
Definition: pgstat.c:3221
static LocalPgBackendStatus * localBackendStatusTable
Definition: pgstat.c:247
static int localNumBackends
Definition: pgstat.c:250
int pgstat_fetch_stat_numbackends ( void  )

Definition at line 2543 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().

2544 {
2546 
2547  return localNumBackends;
2548 }
static void pgstat_read_current_status(void)
Definition: pgstat.c:3221
static int localNumBackends
Definition: pgstat.c:250
PgStat_StatTabEntry* pgstat_fetch_stat_tabentry ( Oid  relid)

Definition at line 2414 of file pgstat.c.

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

Referenced by 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_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().

2415 {
2416  Oid dbid;
2417  PgStat_StatDBEntry *dbentry;
2418  PgStat_StatTabEntry *tabentry;
2419 
2420  /*
2421  * If not done for this transaction, read the statistics collector stats
2422  * file into some hash tables.
2423  */
2425 
2426  /*
2427  * Lookup our database, then look in its table hash table.
2428  */
2429  dbid = MyDatabaseId;
2431  (void *) &dbid,
2432  HASH_FIND, NULL);
2433  if (dbentry != NULL && dbentry->tables != NULL)
2434  {
2435  tabentry = (PgStat_StatTabEntry *) hash_search(dbentry->tables,
2436  (void *) &relid,
2437  HASH_FIND, NULL);
2438  if (tabentry)
2439  return tabentry;
2440  }
2441 
2442  /*
2443  * If we didn't find it, maybe it's a shared table.
2444  */
2445  dbid = InvalidOid;
2447  (void *) &dbid,
2448  HASH_FIND, NULL);
2449  if (dbentry != NULL && dbentry->tables != NULL)
2450  {
2451  tabentry = (PgStat_StatTabEntry *) hash_search(dbentry->tables,
2452  (void *) &relid,
2453  HASH_FIND, NULL);
2454  if (tabentry)
2455  return tabentry;
2456  }
2457 
2458  return NULL;
2459 }
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:902
unsigned int Oid
Definition: postgres_ext.h:31
static void backend_read_statsfile(void)
Definition: pgstat.c:5406
Oid MyDatabaseId
Definition: globals.c:77
#define InvalidOid
Definition: postgres_ext.h:36
static HTAB * pgStatDBHash
Definition: pgstat.c:244
const char* pgstat_get_backend_current_activity ( int  pid,
bool  checkUser 
)

Definition at line 3907 of file pgstat.c.

References BackendStatusArray, CHECK_FOR_INTERRUPTS, GetUserId(), i, MaxBackends, pgstat_clip_activity(), pgstat_save_changecount_after, pgstat_save_changecount_before, PgBackendStatus::st_activity_raw, PgBackendStatus::st_procpid, PgBackendStatus::st_userid, and superuser().

Referenced by DeadLockReport().

3908 {
3909  PgBackendStatus *beentry;
3910  int i;
3911 
3912  beentry = BackendStatusArray;
3913  for (i = 1; i <= MaxBackends; i++)
3914  {
3915  /*
3916  * Although we expect the target backend's entry to be stable, that
3917  * doesn't imply that anyone else's is. To avoid identifying the
3918  * wrong backend, while we check for a match to the desired PID we
3919  * must follow the protocol of retrying if st_changecount changes
3920  * while we examine the entry, or if it's odd. (This might be
3921  * unnecessary, since fetching or storing an int is almost certainly
3922  * atomic, but let's play it safe.) We use a volatile pointer here to
3923  * ensure the compiler doesn't try to get cute.
3924  */
3925  volatile PgBackendStatus *vbeentry = beentry;
3926  bool found;
3927 
3928  for (;;)
3929  {
3930  int before_changecount;
3931  int after_changecount;
3932 
3933  pgstat_save_changecount_before(vbeentry, before_changecount);
3934 
3935  found = (vbeentry->st_procpid == pid);
3936 
3937  pgstat_save_changecount_after(vbeentry, after_changecount);
3938 
3939  if (before_changecount == after_changecount &&
3940  (before_changecount & 1) == 0)
3941  break;
3942 
3943  /* Make sure we can break out of loop if stuck... */
3945  }
3946 
3947  if (found)
3948  {
3949  /* Now it is safe to use the non-volatile pointer */
3950  if (checkUser && !superuser() && beentry->st_userid != GetUserId())
3951  return "<insufficient privilege>";
3952  else if (*(beentry->st_activity_raw) == '\0')
3953  return "<command string not enabled>";
3954  else
3955  {
3956  /* this'll leak a bit of memory, but that seems acceptable */
3957  return pgstat_clip_activity(beentry->st_activity_raw);
3958  }
3959  }
3960 
3961  beentry++;
3962  }
3963 
3964  /* If we get here, caller is in error ... */
3965  return "<backend information not available>";
3966 }
static PgBackendStatus * BackendStatusArray
Definition: pgstat.c:2589
Oid GetUserId(void)
Definition: miscinit.c:284
bool superuser(void)
Definition: superuser.c:47
int MaxBackends
Definition: globals.c:126
char * st_activity_raw
Definition: pgstat.h:1013
#define pgstat_save_changecount_before(beentry, save_changecount)
Definition: pgstat.h:1054
#define pgstat_save_changecount_after(beentry, save_changecount)
Definition: pgstat.h:1060
int st_procpid
Definition: pgstat.h:979
char * pgstat_clip_activity(const char *raw_activity)
Definition: pgstat.c:6291
int i
#define CHECK_FOR_INTERRUPTS()
Definition: miscadmin.h:98
const char* pgstat_get_backend_desc ( BackendType  backendType)

Definition at line 4044 of file pgstat.c.

References B_AUTOVAC_LAUNCHER, B_AUTOVAC_WORKER, B_BACKEND, B_BG_WORKER, B_BG_WRITER, B_CHECKPOINTER, B_STARTUP, B_WAL_RECEIVER, B_WAL_SENDER, and B_WAL_WRITER.

Referenced by AutoVacLauncherMain(), AutoVacWorkerMain(), AuxiliaryProcessMain(), BackendInitialize(), and pg_stat_get_activity().

4045 {
4046  const char *backendDesc = "unknown process type";
4047 
4048  switch (backendType)
4049  {
4050  case B_AUTOVAC_LAUNCHER:
4051  backendDesc = "autovacuum launcher";
4052  break;
4053  case B_AUTOVAC_WORKER:
4054  backendDesc = "autovacuum worker";
4055  break;
4056  case B_BACKEND:
4057  backendDesc = "client backend";
4058  break;
4059  case B_BG_WORKER:
4060  backendDesc = "background worker";
4061  break;
4062  case B_BG_WRITER:
4063  backendDesc = "background writer";
4064  break;
4065  case B_CHECKPOINTER:
4066  backendDesc = "checkpointer";
4067  break;
4068  case B_STARTUP:
4069  backendDesc = "startup";
4070  break;
4071  case B_WAL_RECEIVER:
4072  backendDesc = "walreceiver";
4073  break;
4074  case B_WAL_SENDER:
4075  backendDesc = "walsender";
4076  break;
4077  case B_WAL_WRITER:
4078  backendDesc = "walwriter";
4079  break;
4080  }
4081 
4082  return backendDesc;
4083 }
const char* pgstat_get_crashed_backend_activity ( int  pid,
char *  buffer,
int  buflen 
)

Definition at line 3985 of file pgstat.c.

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

Referenced by LogChildExit().

3986 {
3987  volatile PgBackendStatus *beentry;
3988  int i;
3989 
3990  beentry = BackendStatusArray;
3991 
3992  /*
3993  * We probably shouldn't get here before shared memory has been set up,
3994  * but be safe.
3995  */
3996  if (beentry == NULL || BackendActivityBuffer == NULL)
3997  return NULL;
3998 
3999  for (i = 1; i <= MaxBackends; i++)
4000  {
4001  if (beentry->st_procpid == pid)
4002  {
4003  /* Read pointer just once, so it can't change after validation */
4004  const char *activity = beentry->st_activity_raw;
4005  const char *activity_last;
4006 
4007  /*
4008  * We mustn't access activity string before we verify that it
4009  * falls within the BackendActivityBuffer. To make sure that the
4010  * entire string including its ending is contained within the
4011  * buffer, subtract one activity length from the buffer size.
4012  */
4015 
4016  if (activity < BackendActivityBuffer ||
4017  activity > activity_last)
4018  return NULL;
4019 
4020  /* If no string available, no point in a report */
4021  if (activity[0] == '\0')
4022  return NULL;
4023 
4024  /*
4025  * Copy only ASCII-safe characters so we don't run into encoding
4026  * problems when reporting the message; and be sure not to run off
4027  * the end of memory. As only ASCII characters are reported, it
4028  * doesn't seem necessary to perform multibyte aware clipping.
4029  */
4030  ascii_safe_strlcpy(buffer, activity,
4031  Min(buflen, pgstat_track_activity_query_size));
4032 
4033  return buffer;
4034  }
4035 
4036  beentry++;
4037  }
4038 
4039  /* PID not found */
4040  return NULL;
4041 }
static PgBackendStatus * BackendStatusArray
Definition: pgstat.c:2589
static char * BackendActivityBuffer
Definition: pgstat.c:2593
#define Min(x, y)
Definition: c.h:812
static Size BackendActivityBufferSize
Definition: pgstat.c:2594
void ascii_safe_strlcpy(char *dest, const char *src, size_t destsiz)
Definition: ascii.c:173
int MaxBackends
Definition: globals.c:126
char * st_activity_raw
Definition: pgstat.h:1013
int pgstat_track_activity_query_size
Definition: pgstat.c:128
WalTimeSample buffer[LAG_TRACKER_BUFFER_SIZE]
Definition: walsender.c:214
int st_procpid
Definition: pgstat.h:979
int i
const char* pgstat_get_wait_event ( uint32  wait_event_info)

Definition at line 3390 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().

3391 {
3392  uint32 classId;
3393  uint16 eventId;
3394  const char *event_name;
3395 
3396  /* report process as not waiting. */
3397  if (wait_event_info == 0)
3398  return NULL;
3399 
3400  classId = wait_event_info & 0xFF000000;
3401  eventId = wait_event_info & 0x0000FFFF;
3402 
3403  switch (classId)
3404  {
3405  case PG_WAIT_LWLOCK:
3406  event_name = GetLWLockIdentifier(classId, eventId);
3407  break;
3408  case PG_WAIT_LOCK:
3409  event_name = GetLockNameFromTagType(eventId);
3410  break;
3411  case PG_WAIT_BUFFER_PIN:
3412  event_name = "BufferPin";
3413  break;
3414  case PG_WAIT_ACTIVITY:
3415  {
3416  WaitEventActivity w = (WaitEventActivity) wait_event_info;
3417 
3418  event_name = pgstat_get_wait_activity(w);
3419  break;
3420  }
3421  case PG_WAIT_CLIENT:
3422  {
3423  WaitEventClient w = (WaitEventClient) wait_event_info;
3424 
3425  event_name = pgstat_get_wait_client(w);
3426  break;
3427  }
3428  case PG_WAIT_EXTENSION:
3429  event_name = "Extension";
3430  break;
3431  case PG_WAIT_IPC:
3432  {
3433  WaitEventIPC w = (WaitEventIPC) wait_event_info;
3434 
3435  event_name = pgstat_get_wait_ipc(w);
3436  break;
3437  }
3438  case PG_WAIT_TIMEOUT:
3439  {
3440  WaitEventTimeout w = (WaitEventTimeout) wait_event_info;
3441 
3442  event_name = pgstat_get_wait_timeout(w);
3443  break;
3444  }
3445  case PG_WAIT_IO:
3446  {
3447  WaitEventIO w = (WaitEventIO) wait_event_info;
3448 
3449  event_name = pgstat_get_wait_io(w);
3450  break;
3451  }
3452  default:
3453  event_name = "unknown wait event";
3454  break;
3455  }
3456 
3457  return event_name;
3458 }
#define PG_WAIT_LOCK
Definition: pgstat.h:738
WaitEventIPC
Definition: pgstat.h:800
static const char * pgstat_get_wait_timeout(WaitEventTimeout w)
Definition: pgstat.c:3644
static const char * pgstat_get_wait_ipc(WaitEventIPC w)
Definition: pgstat.c:3571
#define PG_WAIT_ACTIVITY
Definition: pgstat.h:740
#define PG_WAIT_IO
Definition: pgstat.h:745
static const char * pgstat_get_wait_activity(WaitEventActivity w)
Definition: pgstat.c:3467
unsigned short uint16
Definition: c.h:257
#define PG_WAIT_CLIENT
Definition: pgstat.h:741
WaitEventClient
Definition: pgstat.h:781
static const char * pgstat_get_wait_client(WaitEventClient w)
Definition: pgstat.c:3528
unsigned int uint32
Definition: c.h:258
WaitEventTimeout
Definition: pgstat.h:828
#define PG_WAIT_EXTENSION
Definition: pgstat.h:742
#define PG_WAIT_BUFFER_PIN
Definition: pgstat.h:739
const char * GetLockNameFromTagType(uint16 locktag_type)
Definition: lmgr.c:1039
WaitEventIO
Definition: pgstat.h:841
#define PG_WAIT_TIMEOUT
Definition: pgstat.h:744
#define PG_WAIT_IPC
Definition: pgstat.h:743
const char * GetLWLockIdentifier(uint32 classId, uint16 eventId)
Definition: lwlock.c:709
static const char * pgstat_get_wait_io(WaitEventIO w)
Definition: pgstat.c:3672
#define PG_WAIT_LWLOCK
Definition: pgstat.h:737
WaitEventActivity
Definition: pgstat.h:755
const char* pgstat_get_wait_event_type ( uint32  wait_event_info)

Definition at line 3335 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().

3336 {
3337  uint32 classId;
3338  const char *event_type;
3339 
3340  /* report process as not waiting. */
3341  if (wait_event_info == 0)
3342  return NULL;
3343 
3344  classId = wait_event_info & 0xFF000000;
3345 
3346  switch (classId)
3347  {
3348  case PG_WAIT_LWLOCK:
3349  event_type = "LWLock";
3350  break;
3351  case PG_WAIT_LOCK:
3352  event_type = "Lock";
3353  break;
3354  case PG_WAIT_BUFFER_PIN:
3355  event_type = "BufferPin";
3356  break;
3357  case PG_WAIT_ACTIVITY:
3358  event_type = "Activity";
3359  break;
3360  case PG_WAIT_CLIENT:
3361  event_type = "Client";
3362  break;
3363  case PG_WAIT_EXTENSION:
3364  event_type = "Extension";
3365  break;
3366  case PG_WAIT_IPC:
3367  event_type = "IPC";
3368  break;
3369  case PG_WAIT_TIMEOUT:
3370  event_type = "Timeout";
3371  break;
3372  case PG_WAIT_IO:
3373  event_type = "IO";
3374  break;
3375  default:
3376  event_type = "???";
3377  break;
3378  }
3379 
3380  return event_type;
3381 }
#define PG_WAIT_LOCK
Definition: pgstat.h:738
#define PG_WAIT_ACTIVITY
Definition: pgstat.h:740
#define PG_WAIT_IO
Definition: pgstat.h:745
#define PG_WAIT_CLIENT
Definition: pgstat.h:741
unsigned int uint32
Definition: c.h:258
#define PG_WAIT_EXTENSION
Definition: pgstat.h:742
#define PG_WAIT_BUFFER_PIN
Definition: pgstat.h:739
#define PG_WAIT_TIMEOUT
Definition: pgstat.h:744
#define PG_WAIT_IPC
Definition: pgstat.h:743
#define PG_WAIT_LWLOCK
Definition: pgstat.h:737
void pgstat_init ( void  )

Definition at line 355 of file pgstat.c.

References addrinfo::ai_next, AI_PASSIVE, bind, closesocket, connect, EINTR, elog, 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, select, send, SetConfigOption(), socket, StaticAssertStmt, and TESTBYTEVAL.

Referenced by PostmasterMain().

356 {
357  ACCEPT_TYPE_ARG3 alen;
358  struct addrinfo *addrs = NULL,
359  *addr,
360  hints;
361  int ret;
362  fd_set rset;
363  struct timeval tv;
364  char test_byte;
365  int sel_res;
366  int tries = 0;
367 
368 #define TESTBYTEVAL ((char) 199)
369 
370  /*
371  * This static assertion verifies that we didn't mess up the calculations
372  * involved in selecting maximum payload sizes for our UDP messages.
373  * Because the only consequence of overrunning PGSTAT_MAX_MSG_SIZE would
374  * be silent performance loss from fragmentation, it seems worth having a
375  * compile-time cross-check that we didn't.
376  */
378  "maximum stats message size exceeds PGSTAT_MAX_MSG_SIZE");
379 
380  /*
381  * Create the UDP socket for sending and receiving statistic messages
382  */
383  hints.ai_flags = AI_PASSIVE;
384  hints.ai_family = AF_UNSPEC;
385  hints.ai_socktype = SOCK_DGRAM;
386  hints.ai_protocol = 0;
387  hints.ai_addrlen = 0;
388  hints.ai_addr = NULL;
389  hints.ai_canonname = NULL;
390  hints.ai_next = NULL;
391  ret = pg_getaddrinfo_all("localhost", NULL, &hints, &addrs);
392  if (ret || !addrs)
393  {
394  ereport(LOG,
395  (errmsg("could not resolve \"localhost\": %s",
396  gai_strerror(ret))));
397  goto startup_failed;
398  }
399 
400  /*
401  * On some platforms, pg_getaddrinfo_all() may return multiple addresses
402  * only one of which will actually work (eg, both IPv6 and IPv4 addresses
403  * when kernel will reject IPv6). Worse, the failure may occur at the
404  * bind() or perhaps even connect() stage. So we must loop through the
405  * results till we find a working combination. We will generate LOG
406  * messages, but no error, for bogus combinations.
407  */
408  for (addr = addrs; addr; addr = addr->ai_next)
409  {
410 #ifdef HAVE_UNIX_SOCKETS
411  /* Ignore AF_UNIX sockets, if any are returned. */
412  if (addr->ai_family == AF_UNIX)
413  continue;
414 #endif
415 
416  if (++tries > 1)
417  ereport(LOG,
418  (errmsg("trying another address for the statistics collector")));
419 
420  /*
421  * Create the socket.
422  */
423  if ((pgStatSock = socket(addr->ai_family, SOCK_DGRAM, 0)) == PGINVALID_SOCKET)
424  {
425  ereport(LOG,
427  errmsg("could not create socket for statistics collector: %m")));
428  continue;
429  }
430 
431  /*
432  * Bind it to a kernel assigned port on localhost and get the assigned
433  * port via getsockname().
434  */
435  if (bind(pgStatSock, addr->ai_addr, addr->ai_addrlen) < 0)
436  {
437  ereport(LOG,
439  errmsg("could not bind socket for statistics collector: %m")));
442  continue;
443  }
444 
445  alen = sizeof(pgStatAddr);
446  if (getsockname(pgStatSock, (struct sockaddr *) &pgStatAddr, &alen) < 0)
447  {
448  ereport(LOG,
450  errmsg("could not get address of socket for statistics collector: %m")));
453  continue;
454  }
455 
456  /*
457  * Connect the socket to its own address. This saves a few cycles by
458  * not having to respecify the target address on every send. This also
459  * provides a kernel-level check that only packets from this same
460  * address will be received.
461  */
462  if (connect(pgStatSock, (struct sockaddr *) &pgStatAddr, alen) < 0)
463  {
464  ereport(LOG,
466  errmsg("could not connect socket for statistics collector: %m")));
469  continue;
470  }
471 
472  /*
473  * Try to send and receive a one-byte test message on the socket. This
474  * is to catch situations where the socket can be created but will not
475  * actually pass data (for instance, because kernel packet filtering
476  * rules prevent it).
477  */
478  test_byte = TESTBYTEVAL;
479 
480 retry1:
481  if (send(pgStatSock, &test_byte, 1, 0) != 1)
482  {
483  if (errno == EINTR)
484  goto retry1; /* if interrupted, just retry */
485  ereport(LOG,
487  errmsg("could not send test message on socket for statistics collector: %m")));
490  continue;
491  }
492 
493  /*
494  * There could possibly be a little delay before the message can be
495  * received. We arbitrarily allow up to half a second before deciding
496  * it's broken.
497  */
498  for (;;) /* need a loop to handle EINTR */
499  {
500  FD_ZERO(&rset);
501  FD_SET(pgStatSock, &rset);
502 
503  tv.tv_sec = 0;
504  tv.tv_usec = 500000;
505  sel_res = select(pgStatSock + 1, &rset, NULL, NULL, &tv);
506  if (sel_res >= 0 || errno != EINTR)
507  break;
508  }
509  if (sel_res < 0)
510  {
511  ereport(LOG,
513  errmsg("select() failed in statistics collector: %m")));
516  continue;
517  }
518  if (sel_res == 0 || !FD_ISSET(pgStatSock, &rset))
519  {
520  /*
521  * This is the case we actually think is likely, so take pains to
522  * give a specific message for it.
523  *
524  * errno will not be set meaningfully here, so don't use it.
525  */
526  ereport(LOG,
527  (errcode(ERRCODE_CONNECTION_FAILURE),
528  errmsg("test message did not get through on socket for statistics collector")));
531  continue;
532  }
533 
534  test_byte++; /* just make sure variable is changed */
535 
536 retry2:
537  if (recv(pgStatSock, &test_byte, 1, 0) != 1)
538  {
539  if (errno == EINTR)
540  goto retry2; /* if interrupted, just retry */
541  ereport(LOG,
543  errmsg("could not receive test message on socket for statistics collector: %m")));
546  continue;
547  }
548 
549  if (test_byte != TESTBYTEVAL) /* strictly paranoia ... */
550  {
551  ereport(LOG,
552  (errcode(ERRCODE_INTERNAL_ERROR),
553  errmsg("incorrect test message transmission on socket for statistics collector")));
556  continue;
557  }
558 
559  /* If we get here, we have a working socket */
560  break;
561  }
562 
563  /* Did we find a working address? */
564  if (!addr || pgStatSock == PGINVALID_SOCKET)
565  goto startup_failed;
566 
567  /*
568  * Set the socket to non-blocking IO. This ensures that if the collector
569  * falls behind, statistics messages will be discarded; backends won't
570  * block waiting to send messages to the collector.
571  */
573  {
574  ereport(LOG,
576  errmsg("could not set statistics collector socket to nonblocking mode: %m")));
577  goto startup_failed;
578  }
579 
580  /*
581  * Try to ensure that the socket's receive buffer is at least
582  * PGSTAT_MIN_RCVBUF bytes, so that it won't easily overflow and lose
583  * data. Use of UDP protocol means that we are willing to lose data under
584  * heavy load, but we don't want it to happen just because of ridiculously
585  * small default buffer sizes (such as 8KB on older Windows versions).
586  */
587  {
588  int old_rcvbuf;
589  int new_rcvbuf;
590  ACCEPT_TYPE_ARG3 rcvbufsize = sizeof(old_rcvbuf);
591 
592  if (getsockopt(pgStatSock, SOL_SOCKET, SO_RCVBUF,
593  (char *) &old_rcvbuf, &rcvbufsize) < 0)
594  {
595  elog(LOG, "getsockopt(SO_RCVBUF) failed: %m");
596  /* if we can't get existing size, always try to set it */
597  old_rcvbuf = 0;
598  }
599 
600  new_rcvbuf = PGSTAT_MIN_RCVBUF;
601  if (old_rcvbuf < new_rcvbuf)
602  {
603  if (setsockopt(pgStatSock, SOL_SOCKET, SO_RCVBUF,
604  (char *) &new_rcvbuf, sizeof(new_rcvbuf)) < 0)
605  elog(LOG, "setsockopt(SO_RCVBUF) failed: %m");
606  }
607  }
608 
609  pg_freeaddrinfo_all(hints.ai_family, addrs);
610 
611  return;
612 
613 startup_failed:
614  ereport(LOG,
615  (errmsg("disabling statistics collector for lack of working socket")));
616 
617  if (addrs)
618  pg_freeaddrinfo_all(hints.ai_family, addrs);
619 
623 
624  /*
625  * Adjust GUC variables to suppress useless activity, and for debugging
626  * purposes (seeing track_counts off is a clue that we failed here). We
627  * use PGC_S_OVERRIDE because there is no point in trying to turn it back
628  * on from postgresql.conf without a restart.
629  */
630  SetConfigOption("track_counts", "off", PGC_INTERNAL, PGC_S_OVERRIDE);
631 }
#define send(s, buf, len, flags)
Definition: win32.h:376
#define connect(s, name, namelen)
Definition: win32.h:373
void pg_freeaddrinfo_all(int hint_ai_family, struct addrinfo *ai)
Definition: ip.c:88
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
#define closesocket
Definition: port.h:331
#define socket(af, type, protocol)
Definition: win32.h:369
int errcode(int sqlerrcode)
Definition: elog.c:575
#define select(n, r, w, e, timeout)
Definition: win32.h:374
#define recv(s, buf, len, flags)
Definition: win32.h:375
#define LOG
Definition: elog.h:26
#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:763
#define PGSTAT_MIN_RCVBUF
Definition: pgstat.c:97
#define bind(s, addr, addrlen)
Definition: win32.h:370
#define TESTBYTEVAL
void SetConfigOption(const char *name, const char *value, GucContext context, GucSource source)
Definition: guc.c:6681
#define AI_PASSIVE
Definition: getaddrinfo.h:62
#define ereport(elevel, rest)
Definition: elog.h:122
int errcode_for_socket_access(void)
Definition: elog.c:669
#define PGSTAT_MAX_MSG_SIZE
Definition: pgstat.h:206
#define PGINVALID_SOCKET
Definition: port.h:24
#define EINTR
Definition: win32.h:285
static struct sockaddr_storage pgStatAddr
Definition: pgstat.c:151
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:797
#define elog
Definition: elog.h:219
void pgstat_init_function_usage ( FunctionCallInfoData fcinfo,
PgStat_FunctionCallUsage fcu 
)

Definition at line 1581 of file pgstat.c.

References HASHCTL::entrysize, PgStat_BackendFunctionEntry::f_counts, PgStat_FunctionCallUsage::f_start, PgStat_FunctionCounts::f_total_time, FunctionCallInfoData::flinfo, FmgrInfo::fn_oid, PgStat_FunctionCallUsage::fs, HASH_BLOBS, hash_create(), HASH_ELEM, HASH_ENTER, hash_search(), INSTR_TIME_SET_CURRENT, HASHCTL::keysize, MemSet, PGSTAT_FUNCTION_HASH_SIZE, PgStat_FunctionCallUsage::save_f_total_time, PgStat_FunctionCallUsage::save_total, and total_func_time.

Referenced by call_pltcl_start_proc(), EventTriggerInvoke(), ExecCallTriggerFunc(), ExecInterpExpr(), ExecMakeFunctionResultSet(), ExecMakeTableFunctionResult(), and fmgr_security_definer().

1583 {
1584  PgStat_BackendFunctionEntry *htabent;
1585  bool found;
1586 
1587  if (pgstat_track_functions <= fcinfo->flinfo->fn_stats)
1588  {
1589  /* stats not wanted */
1590  fcu->fs = NULL;
1591  return;
1592  }
1593 
1594  if (!pgStatFunctions)
1595  {
1596  /* First time through - initialize function stat table */
1597  HASHCTL hash_ctl;
1598 
1599  memset(&hash_ctl, 0, sizeof(hash_ctl));
1600  hash_ctl.keysize = sizeof(Oid);
1601  hash_ctl.entrysize = sizeof(PgStat_BackendFunctionEntry);
1602  pgStatFunctions = hash_create("Function stat entries",
1604  &hash_ctl,
1605  HASH_ELEM | HASH_BLOBS);
1606  }
1607 
1608  /* Get the stats entry for this function, create if necessary */
1609  htabent = hash_search(pgStatFunctions, &fcinfo->flinfo->fn_oid,
1610  HASH_ENTER, &found);
1611  if (!found)
1612  MemSet(&htabent->f_counts, 0, sizeof(PgStat_FunctionCounts));
1613 
1614  fcu->fs = &htabent->f_counts;
1615 
1616  /* save stats for this function, later used to compensate for recursion */
1617  fcu->save_f_total_time = htabent->f_counts.f_total_time;
1618 
1619  /* save current backend-wide total time */
1620  fcu->save_total = total_func_time;
1621 
1622  /* get clock time as of function start */
1624 }
#define HASH_ELEM
Definition: hsearch.h:87
instr_time save_total
Definition: pgstat.h:1105
Size entrysize
Definition: hsearch.h:73
#define MemSet(start, val, len)
Definition: c.h:863
instr_time f_total_time
Definition: pgstat.h:462
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:902
unsigned int Oid
Definition: postgres_ext.h:31
PgStat_FunctionCounts * fs
Definition: pgstat.h:1101
FmgrInfo * flinfo
Definition: fmgr.h:79
PgStat_FunctionCounts f_counts
Definition: pgstat.h:473
#define PGSTAT_FUNCTION_HASH_SIZE
Definition: pgstat.c:106
#define HASH_BLOBS
Definition: hsearch.h:88
HTAB * hash_create(const char *tabname, long nelem, HASHCTL *info, int flags)
Definition: dynahash.c:316
Size keysize
Definition: hsearch.h:72
Oid fn_oid
Definition: fmgr.h:59
static instr_time total_func_time
Definition: pgstat.c:276
static HTAB * pgStatFunctions
Definition: pgstat.c:197
#define INSTR_TIME_SET_CURRENT(t)
Definition: instr_time.h:153
instr_time save_f_total_time
Definition: pgstat.h:1103
struct PgStat_BackendFunctionEntry PgStat_BackendFunctionEntry
void pgstat_initialize ( void  )

Definition at line 2745 of file pgstat.c.

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

Referenced by AuxiliaryProcessMain(), and InitPostgres().

2746 {
2747  /* Initialize MyBEEntry */
2749  {
2752  }
2753  else
2754  {
2755  /* Must be an auxiliary process */
2757 
2758  /*
2759  * Assign the MyBEEntry for an auxiliary process. Since it doesn't
2760  * have a BackendId, the slot is statically allocated based on the
2761  * auxiliary process type (MyAuxProcType). Backends use slots indexed
2762  * in the range from 1 to MaxBackends (inclusive), so we use
2763  * MaxBackends + AuxBackendType + 1 as the index of the slot for an
2764  * auxiliary process.
2765  */
2767  }
2768 
2769  /* Set up a process-exit hook to clean up */
2771 }
static PgBackendStatus * BackendStatusArray
Definition: pgstat.c:2589
BackendId MyBackendId
Definition: globals.c:73
int MaxBackends
Definition: globals.c:126
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2590
void on_shmem_exit(pg_on_exit_callback function, Datum arg)
Definition: ipc.c:348
static void pgstat_beshutdown_hook(int code, Datum arg)
Definition: pgstat.c:2956
#define InvalidBackendId
Definition: backendid.h:23
AuxProcType MyAuxProcType
Definition: bootstrap.c:69
#define Assert(condition)
Definition: c.h:681
void pgstat_initstats ( Relation  rel)

Definition at line 1710 of file pgstat.c.

References get_tabstat_entry(), PGINVALID_SOCKET, RelationData::pgstat_info, pgstat_track_counts, pgStatSock, RelationData::rd_id, RelationData::rd_rel, RELKIND_INDEX, RELKIND_MATVIEW, RELKIND_RELATION, RELKIND_SEQUENCE, RELKIND_TOASTVALUE, and PgStat_TableStatus::t_id.

Referenced by relation_open(), and try_relation_open().

1711 {
1712  Oid rel_id = rel->rd_id;
1713  char relkind = rel->rd_rel->relkind;
1714 
1715  /* We only count stats for things that have storage */
1716  if (!(relkind == RELKIND_RELATION ||
1717  relkind == RELKIND_MATVIEW ||
1718  relkind == RELKIND_INDEX ||
1719  relkind == RELKIND_TOASTVALUE ||
1720  relkind == RELKIND_SEQUENCE))
1721  {
1722  rel->pgstat_info = NULL;
1723  return;
1724  }
1725 
1727  {
1728  /* We're not counting at all */
1729  rel->pgstat_info = NULL;
1730  return;
1731  }
1732 
1733  /*
1734  * If we already set up this relation in the current transaction, nothing
1735  * to do.
1736  */
1737  if (rel->pgstat_info != NULL &&
1738  rel->pgstat_info->t_id == rel_id)
1739  return;
1740 
1741  /* Else find or make the PgStat_TableStatus entry, and update link */
1742  rel->pgstat_info = get_tabstat_entry(rel_id, rel->rd_rel->relisshared);
1743 }
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
#define RELKIND_MATVIEW
Definition: pg_class.h:165
Form_pg_class rd_rel
Definition: rel.h:114
unsigned int Oid
Definition: postgres_ext.h:31
bool pgstat_track_counts
Definition: pgstat.c:126
Oid rd_id
Definition: rel.h:116
static PgStat_TableStatus * get_tabstat_entry(Oid rel_id, bool isshared)
Definition: pgstat.c:1749
#define RELKIND_TOASTVALUE
Definition: pg_class.h:163
#define PGINVALID_SOCKET
Definition: port.h:24
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:218
#define RELKIND_INDEX
Definition: pg_class.h:161
#define RELKIND_RELATION
Definition: pg_class.h:160
#define RELKIND_SEQUENCE
Definition: pg_class.h:162
void pgstat_ping ( void  )

Definition at line 1546 of file pgstat.c.

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

1547 {
1548  PgStat_MsgDummy msg;
1549 
1551  return;
1552 
1554  pgstat_send(&msg, sizeof(msg));
1555 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
#define PGINVALID_SOCKET
Definition: port.h:24
PgStat_MsgHdr m_hdr
Definition: pgstat.h:216
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
void pgstat_progress_end_command ( void  )

Definition at line 3144 of file pgstat.c.

References InvalidOid, MyBEEntry, pgstat_increment_changecount_after, pgstat_increment_changecount_before, pgstat_track_activities, PROGRESS_COMMAND_INVALID, PgBackendStatus::st_progress_command, and PgBackendStatus::st_progress_command_target.

Referenced by AbortSubTransaction(), AbortTransaction(), and lazy_vacuum_rel().

3145 {
3146  volatile PgBackendStatus *beentry = MyBEEntry;
3147 
3148  if (!beentry)
3149  return;
3152  return;
3153 
3158 }
Oid st_progress_command_target
Definition: pgstat.h:1025
ProgressCommandType st_progress_command
Definition: pgstat.h:1024
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2590
#define pgstat_increment_changecount_before(beentry)
Definition: pgstat.h:1041
#define pgstat_increment_changecount_after(beentry)
Definition: pgstat.h:1047
#define InvalidOid
Definition: postgres_ext.h:36
bool pgstat_track_activities
Definition: pgstat.c:125
void pgstat_progress_start_command ( ProgressCommandType  cmdtype,
Oid  relid 
)

Definition at line 3072 of file pgstat.c.

References MemSet, MyBEEntry, pgstat_increment_changecount_after, pgstat_increment_changecount_before, pgstat_track_activities, PgBackendStatus::st_progress_command, PgBackendStatus::st_progress_command_target, and PgBackendStatus::st_progress_param.

Referenced by lazy_vacuum_rel().

3073 {
3074  volatile PgBackendStatus *beentry = MyBEEntry;
3075 
3076  if (!beentry || !pgstat_track_activities)
3077  return;
3078 
3080  beentry->st_progress_command = cmdtype;
3081  beentry->st_progress_command_target = relid;
3082  MemSet(&beentry->st_progress_param, 0, sizeof(beentry->st_progress_param));
3084 }
Oid st_progress_command_target
Definition: pgstat.h:1025
#define MemSet(start, val, len)
Definition: c.h:863
ProgressCommandType st_progress_command
Definition: pgstat.h:1024
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2590
#define pgstat_increment_changecount_before(beentry)
Definition: pgstat.h:1041
#define pgstat_increment_changecount_after(beentry)
Definition: pgstat.h:1047
int64 st_progress_param[PGSTAT_NUM_PROGRESS_PARAM]
Definition: pgstat.h:1026
bool pgstat_track_activities
Definition: pgstat.c:125
void pgstat_progress_update_multi_param ( int  nparam,
const int *  index,
const int64 *  val 
)

Definition at line 3115 of file pgstat.c.

References Assert, i, MyBEEntry, pgstat_increment_changecount_after, pgstat_increment_changecount_before, PGSTAT_NUM_PROGRESS_PARAM, pgstat_track_activities, and PgBackendStatus::st_progress_param.

Referenced by lazy_scan_heap().

3117 {
3118  volatile PgBackendStatus *beentry = MyBEEntry;
3119  int i;
3120 
3121  if (!beentry || !pgstat_track_activities || nparam == 0)
3122  return;
3123 
3125 
3126  for (i = 0; i < nparam; ++i)
3127  {
3128  Assert(index[i] >= 0 && index[i] < PGSTAT_NUM_PROGRESS_PARAM);
3129 
3130  beentry->st_progress_param[index[i]] = val[i];
3131  }
3132 
3134 }
Definition: type.h:89
#define PGSTAT_NUM_PROGRESS_PARAM
Definition: pgstat.h:922
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2590
#define pgstat_increment_changecount_before(beentry)
Definition: pgstat.h:1041
#define pgstat_increment_changecount_after(beentry)
Definition: pgstat.h:1047
#define Assert(condition)
Definition: c.h:681
int64 st_progress_param[PGSTAT_NUM_PROGRESS_PARAM]
Definition: pgstat.h:1026
bool pgstat_track_activities
Definition: pgstat.c:125
int i
long val
Definition: informix.c:689
void pgstat_progress_update_param ( int  index,
int64  val 
)

Definition at line 3093 of file pgstat.c.

References Assert, MyBEEntry, pgstat_increment_changecount_after, pgstat_increment_changecount_before, PGSTAT_NUM_PROGRESS_PARAM, pgstat_track_activities, PgBackendStatus::st_progress_param, and val.

Referenced by lazy_record_dead_tuple(), lazy_scan_heap(), lazy_truncate_heap(), lazy_vacuum_page(), and lazy_vacuum_rel().

3094 {
3095  volatile PgBackendStatus *beentry = MyBEEntry;
3096 
3098 
3099  if (!beentry || !pgstat_track_activities)
3100  return;
3101 
3103  beentry->st_progress_param[index] = val;
3105 }
Definition: type.h:89
#define PGSTAT_NUM_PROGRESS_PARAM
Definition: pgstat.h:922
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2590
#define pgstat_increment_changecount_before(beentry)
Definition: pgstat.h:1041
#define pgstat_increment_changecount_after(beentry)
Definition: pgstat.h:1047
#define Assert(condition)
Definition: c.h:681
int64 st_progress_param[PGSTAT_NUM_PROGRESS_PARAM]
Definition: pgstat.h:1026
bool pgstat_track_activities
Definition: pgstat.c:125
long val
Definition: informix.c:689
void pgstat_report_activity ( BackendState  state,
const char *  cmd_str 
)

Definition at line 2994 of file pgstat.c.

References GetCurrentStatementStartTimestamp(), GetCurrentTimestamp(), Min, MyBEEntry, MyProc, pgstat_increment_changecount_after, pgstat_increment_changecount_before, pgstat_track_activities, pgstat_track_activity_query_size, PgBackendStatus::st_activity_raw, PgBackendStatus::st_activity_start_timestamp, PgBackendStatus::st_state, PgBackendStatus::st_state_start_timestamp, PgBackendStatus::st_xact_start_timestamp, STATE_DISABLED, and PGPROC::wait_event_info.

Referenced by apply_handle_begin(), apply_handle_commit(), autovac_report_activity(), autovac_report_workitem(), exec_bind_message(), exec_execute_message(), exec_parse_message(), exec_simple_query(), initialize_worker_spi(), LogicalRepApplyLoop(), ParallelQueryMain(), PostgresMain(), and WalSndLoop().

2995 {
2996  volatile PgBackendStatus *beentry = MyBEEntry;
2997  TimestampTz start_timestamp;
2998  TimestampTz current_timestamp;
2999  int len = 0;
3000 
3001  TRACE_POSTGRESQL_STATEMENT_STATUS(cmd_str);
3002 
3003  if (!beentry)
3004  return;
3005 
3007  {
3008  if (beentry->st_state != STATE_DISABLED)
3009  {
3010  volatile PGPROC *proc = MyProc;
3011 
3012  /*
3013  * track_activities is disabled, but we last reported a
3014  * non-disabled state. As our final update, change the state and
3015  * clear fields we will not be updating anymore.
3016  */
3018  beentry->st_state = STATE_DISABLED;
3019  beentry->st_state_start_timestamp = 0;
3020  beentry->st_activity_raw[0] = '\0';
3021  beentry->st_activity_start_timestamp = 0;
3022  /* st_xact_start_timestamp and wait_event_info are also disabled */
3023  beentry->st_xact_start_timestamp = 0;
3024  proc->wait_event_info = 0;
3026  }
3027  return;
3028  }
3029 
3030  /*
3031  * To minimize the time spent modifying the entry, fetch all the needed
3032  * data first.
3033  */
3034  start_timestamp = GetCurrentStatementStartTimestamp();
3035  if (cmd_str != NULL)
3036  {
3037  /*
3038  * Compute length of to-be-stored string unaware of multi-byte
3039  * characters. For speed reasons that'll get corrected on read, rather
3040  * than computed every write.
3041  */
3042  len = Min(strlen(cmd_str), pgstat_track_activity_query_size - 1);
3043  }
3044  current_timestamp = GetCurrentTimestamp();
3045 
3046  /*
3047  * Now update the status entry
3048  */
3050 
3051  beentry->st_state = state;
3052  beentry->st_state_start_timestamp = current_timestamp;
3053 
3054  if (cmd_str != NULL)
3055  {
3056  memcpy((char *) beentry->st_activity_raw, cmd_str, len);
3057  beentry->st_activity_raw[len] = '\0';
3058  beentry->st_activity_start_timestamp = start_timestamp;
3059  }
3060 
3062 }
uint32 wait_event_info
Definition: proc.h:173
TimestampTz st_activity_start_timestamp
Definition: pgstat.h:987
TimestampTz GetCurrentTimestamp(void)
Definition: timestamp.c:1570
PGPROC * MyProc
Definition: proc.c:67
int64 TimestampTz
Definition: timestamp.h:39
#define Min(x, y)
Definition: c.h:812
BackendState st_state
Definition: pgstat.h:1001
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2590
#define pgstat_increment_changecount_before(beentry)
Definition: pgstat.h:1041
char * st_activity_raw
Definition: pgstat.h:1013
int pgstat_track_activity_query_size
Definition: pgstat.c:128
TimestampTz st_state_start_timestamp
Definition: pgstat.h:988
#define pgstat_increment_changecount_after(beentry)
Definition: pgstat.h:1047
Definition: regguts.h:298
TimestampTz st_xact_start_timestamp
Definition: pgstat.h:986
bool pgstat_track_activities
Definition: pgstat.c:125
Definition: proc.h:95
TimestampTz GetCurrentStatementStartTimestamp(void)
Definition: xact.c:710
void pgstat_report_analyze ( Relation  rel,
PgStat_Counter  livetuples,
PgStat_Counter  deadtuples,
bool  resetcounter 
)

Definition at line 1433 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().

1436 {
1437  PgStat_MsgAnalyze msg;
1438 
1440  return;
1441 
1442  /*
1443  * Unlike VACUUM, ANALYZE might be running inside a transaction that has
1444  * already inserted and/or deleted rows in the target table. ANALYZE will
1445  * have counted such rows as live or dead respectively. Because we will
1446  * report our counts of such rows at transaction end, we should subtract
1447  * off these counts from what we send to the collector now, else they'll
1448  * be double-counted after commit. (This approach also ensures that the
1449  * collector ends up with the right numbers if we abort instead of
1450  * committing.)
1451  */
1452  if (rel->pgstat_info != NULL)
1453  {
1455 
1456  for (trans = rel->pgstat_info->trans; trans; trans = trans->upper)
1457  {
1458  livetuples -= trans->tuples_inserted - trans->tuples_deleted;
1459  deadtuples -= trans->tuples_updated + trans->tuples_deleted;
1460  }
1461  /* count stuff inserted by already-aborted subxacts, too */
1462  deadtuples -= rel->pgstat_info->t_counts.t_delta_dead_tuples;
1463  /* Since ANALYZE's counts are estimates, we could have underflowed */
1464  livetuples = Max(livetuples, 0);
1465  deadtuples = Max(deadtuples, 0);
1466  }
1467 
1469  msg.m_databaseid = rel->rd_rel->relisshared ? InvalidOid : MyDatabaseId;
1470  msg.m_tableoid = RelationGetRelid(rel);
1472  msg.m_resetcounter = resetcounter;
1474  msg.m_live_tuples = livetuples;
1475  msg.m_dead_tuples = deadtuples;
1476  pgstat_send(&msg, sizeof(msg));
1477 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
PgStat_Counter tuples_updated
Definition: pgstat.h:168
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
TimestampTz GetCurrentTimestamp(void)
Definition: timestamp.c:1570
TimestampTz m_analyzetime
Definition: pgstat.h:387
PgStat_TableCounts t_counts
Definition: pgstat.h:158
Form_pg_class rd_rel
Definition: rel.h:114
bool m_resetcounter
Definition: pgstat.h:386
bool pgstat_track_counts
Definition: pgstat.c:126
PgStat_Counter tuples_inserted
Definition: pgstat.h:167
PgStat_Counter t_delta_dead_tuples
Definition: pgstat.h:111
bool IsAutoVacuumWorkerProcess(void)
Definition: autovacuum.c:3256
struct PgStat_TableXactStatus * upper
Definition: pgstat.h:176
PgStat_Counter m_live_tuples
Definition: pgstat.h:388
bool m_autovacuum
Definition: pgstat.h:385
PgStat_Counter tuples_deleted
Definition: pgstat.h:169
#define PGINVALID_SOCKET
Definition: port.h:24
Oid MyDatabaseId
Definition: globals.c:77
#define InvalidOid
Definition: postgres_ext.h:36
#define Max(x, y)
Definition: c.h:806
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
struct PgStat_TableStatus * pgstat_info
Definition: rel.h:218
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:157
PgStat_MsgHdr m_hdr
Definition: pgstat.h:382
static zic_t trans[TZ_MAX_LEAPS]
Definition: zic.c:387
PgStat_Counter m_dead_tuples
Definition: pgstat.h:389
#define RelationGetRelid(relation)
Definition: rel.h:416
void pgstat_report_appname ( const char *  appname)

Definition at line 3167 of file pgstat.c.

References MyBEEntry, NAMEDATALEN, pg_mbcliplen(), pgstat_increment_changecount_after, pgstat_increment_changecount_before, and PgBackendStatus::st_appname.

Referenced by assign_application_name(), and pgstat_bestart().

3168 {
3169  volatile PgBackendStatus *beentry = MyBEEntry;
3170  int len;
3171 
3172  if (!beentry)
3173  return;
3174 
3175  /* This should be unnecessary if GUC did its job, but be safe */
3176  len = pg_mbcliplen(appname, strlen(appname), NAMEDATALEN - 1);
3177 
3178  /*
3179  * Update my status entry, following the protocol of bumping
3180  * st_changecount before and after. We use a volatile pointer here to
3181  * ensure the compiler doesn't try to get cute.
3182  */
3184 
3185  memcpy((char *) beentry->st_appname, appname, len);
3186  beentry->st_appname[len] = '\0';
3187 
3189 }
#define NAMEDATALEN
int pg_mbcliplen(const char *mbstr, int len, int limit)
Definition: mbutils.c:820
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2590
#define pgstat_increment_changecount_before(beentry)
Definition: pgstat.h:1041
#define pgstat_increment_changecount_after(beentry)
Definition: pgstat.h:1047
char * st_appname
Definition: pgstat.h:1004
void pgstat_report_autovac ( Oid  dboid)

Definition at line 1383 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().

1384 {
1386 
1388  return;
1389 
1391  msg.m_databaseid = dboid;
1393 
1394  pgstat_send(&msg, sizeof(msg));
1395 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
TimestampTz GetCurrentTimestamp(void)
Definition: timestamp.c:1570
PgStat_MsgHdr m_hdr
Definition: pgstat.h:352
#define PGINVALID_SOCKET
Definition: port.h:24
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
TimestampTz m_start_time
Definition: pgstat.h:354
void pgstat_report_deadlock ( void  )

Definition at line 1506 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().

1507 {
1508  PgStat_MsgDeadlock msg;
1509 
1511  return;
1512 
1514  msg.m_databaseid = MyDatabaseId;
1515  pgstat_send(&msg, sizeof(msg));
1516 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
bool pgstat_track_counts
Definition: pgstat.c:126
PgStat_MsgHdr m_hdr
Definition: pgstat.h:529
#define PGINVALID_SOCKET
Definition: port.h:24
Oid MyDatabaseId
Definition: globals.c:77
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
void pgstat_report_recovery_conflict ( int  reason)

Definition at line 1486 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().

1487 {
1489 
1491  return;
1492 
1494  msg.m_databaseid = MyDatabaseId;
1495  msg.m_reason = reason;
1496  pgstat_send(&msg, sizeof(msg));
1497 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
bool pgstat_track_counts
Definition: pgstat.c:126
PgStat_MsgHdr m_hdr
Definition: pgstat.h:431
#define PGINVALID_SOCKET
Definition: port.h:24
Oid MyDatabaseId
Definition: globals.c:77
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
void pgstat_report_stat ( bool  force)

Definition at line 812 of file pgstat.c.

References Assert, GetCurrentTransactionStopTimestamp(), hash_destroy(), have_function_stats, i, InvalidOid, PgStat_MsgTabstat::m_databaseid, PgStat_MsgTabstat::m_entry, PgStat_MsgTabstat::m_nentries, MemSet, MyDatabaseId, now(), PGSTAT_NUM_TABENTRIES, pgstat_send_funcstats(), pgstat_send_tabstat(), 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(), LogicalRepSyncTableStart(), pg_attribute_noreturn(), pgstat_beshutdown_hook(), PostgresMain(), and process_syncing_tables_for_apply().

813 {
814  /* we assume this inits to all zeroes: */
815  static const PgStat_TableCounts all_zeroes;
816  static TimestampTz last_report = 0;
817 
819  PgStat_MsgTabstat regular_msg;
820  PgStat_MsgTabstat shared_msg;
821  TabStatusArray *tsa;
822  int i;
823 
824  /* Don't expend a clock check if nothing to do */
825  if ((pgStatTabList == NULL || pgStatTabList->tsa_used == 0) &&
826  pgStatXactCommit == 0 && pgStatXactRollback == 0 &&
828  return;
829 
830  /*
831  * Don't send a message unless it's been at least PGSTAT_STAT_INTERVAL
832  * msec since we last sent one, or the caller wants to force stats out.
833  */
835  if (!force &&
837  return;
838  last_report = now;
839 
840  /*
841  * Destroy pgStatTabHash before we start invalidating PgStat_TableEntry
842  * entries it points to. (Should we fail partway through the loop below,
843  * it's okay to have removed the hashtable already --- the only
844  * consequence is we'd get multiple entries for the same table in the
845  * pgStatTabList, and that's safe.)
846  */
847  if (pgStatTabHash)
849  pgStatTabHash = NULL;
850 
851  /*
852  * Scan through the TabStatusArray struct(s) to find tables that actually
853  * have counts, and build messages to send. We have to separate shared
854  * relations from regular ones because the databaseid field in the message
855  * header has to depend on that.
856  */
857  regular_msg.m_databaseid = MyDatabaseId;
858  shared_msg.m_databaseid = InvalidOid;
859  regular_msg.m_nentries = 0;
860  shared_msg.m_nentries = 0;
861 
862  for (tsa = pgStatTabList; tsa != NULL; tsa = tsa->tsa_next)
863  {
864  for (i = 0; i < tsa->tsa_used; i++)
865  {
866  PgStat_TableStatus *entry = &tsa->tsa_entries[i];
867  PgStat_MsgTabstat *this_msg;
868  PgStat_TableEntry *this_ent;
869 
870  /* Shouldn't have any pending transaction-dependent counts */
871  Assert(entry->trans == NULL);
872 
873  /*
874  * Ignore entries that didn't accumulate any actual counts, such
875  * as indexes that were opened by the planner but not used.
876  */
877  if (memcmp(&entry->t_counts, &all_zeroes,
878  sizeof(PgStat_TableCounts)) == 0)
879  continue;
880 
881  /*
882  * OK, insert data into the appropriate message, and send if full.
883  */
884  this_msg = entry->t_shared ? &shared_msg : &regular_msg;
885  this_ent = &this_msg->m_entry[this_msg->m_nentries];
886  this_ent->t_id = entry->t_id;
887  memcpy(&this_ent->t_counts, &entry->t_counts,
888  sizeof(PgStat_TableCounts));
889  if (++this_msg->m_nentries >= PGSTAT_NUM_TABENTRIES)
890  {
891  pgstat_send_tabstat(this_msg);
892  this_msg->m_nentries = 0;
893  }
894  }
895  /* zero out TableStatus structs after use */
896  MemSet(tsa->tsa_entries, 0,
897  tsa->tsa_used * sizeof(PgStat_TableStatus));
898  tsa->tsa_used = 0;
899  }
900 
901  /*
902  * Send partial messages. Make sure that any pending xact commit/abort
903  * gets counted, even if there are no table stats to send.
904  */
905  if (regular_msg.m_nentries > 0 ||
907  pgstat_send_tabstat(&regular_msg);
908  if (shared_msg.m_nentries > 0)
909  pgstat_send_tabstat(&shared_msg);
910 
911  /* Now, send function statistics */
913 }
void hash_destroy(HTAB *hashp)
Definition: dynahash.c:810
int tsa_used
Definition: pgstat.c:173
static int pgStatXactCommit
Definition: pgstat.c:221
int64 TimestampTz
Definition: timestamp.h:39
#define MemSet(start, val, len)
Definition: c.h:863
struct TabStatusArray * tsa_next
Definition: pgstat.c:172
PgStat_TableCounts t_counts
Definition: pgstat.h:158
bool TimestampDifferenceExceeds(TimestampTz start_time, TimestampTz stop_time, int msec)
Definition: timestamp.c:1649
static void pgstat_send_tabstat(PgStat_MsgTabstat *tsmsg)
Definition: pgstat.c:919
static HTAB * pgStatTabHash
Definition: pgstat.c:191
static int pgStatXactRollback
Definition: pgstat.c:222
#define PGSTAT_STAT_INTERVAL
Definition: pgstat.c:77
PgStat_TableStatus tsa_entries[TABSTAT_QUANTUM]
Definition: pgstat.c:174
#define PGSTAT_NUM_TABENTRIES
Definition: pgstat.h:263
Oid MyDatabaseId
Definition: globals.c:77
static TabStatusArray * pgStatTabList
Definition: pgstat.c:177
#define InvalidOid
Definition: postgres_ext.h:36
static bool have_function_stats
Definition: pgstat.c:203
TimestampTz GetCurrentTransactionStopTimestamp(void)
Definition: xact.c:722
#define Assert(condition)
Definition: c.h:681
PgStat_TableCounts t_counts
Definition: pgstat.h:255
struct PgStat_TableXactStatus * trans
Definition: pgstat.h:157
PgStat_TableEntry m_entry[PGSTAT_NUM_TABENTRIES]
Definition: pgstat.h:276
int i
static void pgstat_send_funcstats(void)
Definition: pgstat.c:963
Datum now(PG_FUNCTION_ARGS)
Definition: timestamp.c:1534
void pgstat_report_tempfile ( size_t  filesize)

Definition at line 1525 of file pgstat.c.

References PgStat_MsgTempFile::m_databaseid, PgStat_MsgTempFile::m_filesize, PgStat_MsgTempFile::m_hdr, MyDatabaseId, PGINVALID_SOCKET, PGSTAT_MTYPE_TEMPFILE, pgstat_send(), pgstat_setheader(), pgstat_track_counts, and pgStatSock.

Referenced by FileClose().

1526 {
1527  PgStat_MsgTempFile msg;
1528 
1530  return;
1531 
1533  msg.m_databaseid = MyDatabaseId;
1534  msg.m_filesize = filesize;
1535  pgstat_send(&msg, sizeof(msg));
1536 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
PgStat_MsgHdr m_hdr
Definition: pgstat.h:443
size_t m_filesize
Definition: pgstat.h:446
bool pgstat_track_counts
Definition: pgstat.c:126
#define PGINVALID_SOCKET
Definition: port.h:24
Oid MyDatabaseId
Definition: globals.c:77
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
void pgstat_report_vacuum ( Oid  tableoid,
bool  shared,
PgStat_Counter  livetuples,
PgStat_Counter  deadtuples 
)

Definition at line 1405 of file pgstat.c.

References GetCurrentTimestamp(), InvalidOid, IsAutoVacuumWorkerProcess(), PgStat_MsgVacuum::m_autovacuum, PgStat_MsgVacuum::m_databaseid, PgStat_MsgVacuum::m_dead_tuples, PgStat_MsgVacuum::m_hdr, PgStat_MsgVacuum::m_live_tuples, PgStat_MsgVacuum::m_tableoid, PgStat_MsgVacuum::m_vacuumtime, MyDatabaseId, PGINVALID_SOCKET, PGSTAT_MTYPE_VACUUM, pgstat_send(), pgstat_setheader(), pgstat_track_counts, and pgStatSock.

Referenced by lazy_vacuum_rel().

1407 {
1408  PgStat_MsgVacuum msg;
1409 
1411  return;
1412 
1414  msg.m_databaseid = shared ? InvalidOid : MyDatabaseId;
1415  msg.m_tableoid = tableoid;
1418  msg.m_live_tuples = livetuples;
1419  msg.m_dead_tuples = deadtuples;
1420  pgstat_send(&msg, sizeof(msg));
1421 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
PgStat_Counter m_dead_tuples
Definition: pgstat.h:371
TimestampTz m_vacuumtime
Definition: pgstat.h:369
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
PgStat_Counter m_live_tuples
Definition: pgstat.h:370
TimestampTz GetCurrentTimestamp(void)
Definition: timestamp.c:1570
Oid m_databaseid
Definition: pgstat.h:366
bool m_autovacuum
Definition: pgstat.h:368
bool pgstat_track_counts
Definition: pgstat.c:126
bool IsAutoVacuumWorkerProcess(void)
Definition: autovacuum.c:3256
#define PGINVALID_SOCKET
Definition: port.h:24
Oid MyDatabaseId
Definition: globals.c:77
#define InvalidOid
Definition: postgres_ext.h:36
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
PgStat_MsgHdr m_hdr
Definition: pgstat.h:365
static void pgstat_report_wait_end ( void  )
inlinestatic

Definition at line 1244 of file pgstat.h.

References MyProc, pgstat_track_activities, and PGPROC::wait_event_info.

Referenced by AbortSubTransaction(), AbortTransaction(), AddToDataDirLockFile(), ApplyLogicalMappingFile(), assign_xlog_sync_method(), AutoVacLauncherMain(), BackgroundWriterMain(), BootStrapXLOG(), CheckpointerMain(), CheckPointLogicalRewriteHeap(), copy_file(), CreateLockFile(), dsm_impl_mmap(), FilePrefetch(), FileRead(), FileSync(), FileTruncate(), FileWrite(), FileWriteback(), heap_xlog_logical_rewrite(), load_relmap_file(), LWLockReportWaitEnd(), ProcArrayGroupClearXid(), ReadControlFile(), ReadTwoPhaseFile(), RecheckDataDirLockFile(), RecreateTwoPhaseFile(), ReorderBufferRestoreChanges(), ReorderBufferSerializeChange(), RestoreSlotFromDisk(), SaveSlotToPath(), SendTimeLineHistory(), ShutdownAuxiliaryProcess(), SimpleLruFlush(), SlruPhysicalReadPage(), SlruPhysicalWritePage(), SnapBuildRestore(), SnapBuildSerialize(), TransactionGroupUpdateXidStatus(), UpdateControlFile(), WaitEventSetWait(), WalSndErrorCleanup(), WalWriterMain(), write_relmap_file(), WriteControlFile(), writeTimeLineHistory(), writeTimeLineHistoryFile(), XLogFileCopy(), XLogFileInit(), XLogPageRead(), XLogRead(), and XLogWrite().

1245 {
1246  volatile PGPROC *proc = MyProc;
1247 
1248  if (!pgstat_track_activities || !proc)
1249  return;
1250 
1251  /*
1252  * Since this is a four-byte field which is always read and written as
1253  * four-bytes, updates are atomic.
1254  */
1255  proc->wait_event_info = 0;
1256 }
uint32 wait_event_info
Definition: proc.h:173
PGPROC * MyProc
Definition: proc.c:67
bool pgstat_track_activities
Definition: pgstat.c:125
Definition: proc.h:95
static void pgstat_report_wait_start ( uint32  wait_event_info)
inlinestatic

Definition at line 1220 of file pgstat.h.

References MyProc, pgstat_track_activities, and PGPROC::wait_event_info.

Referenced by AddToDataDirLockFile(), ApplyLogicalMappingFile(), assign_xlog_sync_method(), BootStrapXLOG(), CheckPointLogicalRewriteHeap(), copy_file(), CreateLockFile(), dsm_impl_mmap(), FilePrefetch(), FileRead(), FileSync(), FileTruncate(), FileWrite(), FileWriteback(), heap_xlog_logical_rewrite(), load_relmap_file(), LWLockReportWaitStart(), ProcArrayGroupClearXid(), ReadControlFile(), ReadTwoPhaseFile(), RecheckDataDirLockFile(), RecreateTwoPhaseFile(), ReorderBufferRestoreChanges(), ReorderBufferSerializeChange(), RestoreSlotFromDisk(), SaveSlotToPath(), SendTimeLineHistory(), SimpleLruFlush(), SlruPhysicalReadPage(), SlruPhysicalWritePage(), SnapBuildRestore(), SnapBuildSerialize(), TransactionGroupUpdateXidStatus(), UpdateControlFile(), WaitEventSetWait(), write_relmap_file(), WriteControlFile(), writeTimeLineHistory(), writeTimeLineHistoryFile(), XLogFileCopy(), XLogFileInit(), XLogPageRead(), XLogRead(), and XLogWrite().

1221 {
1222  volatile PGPROC *proc = MyProc;
1223 
1224  if (!pgstat_track_activities || !proc)
1225  return;
1226 
1227  /*
1228  * Since this is a four-byte field which is always read and written as
1229  * four-bytes, updates are atomic.
1230  */
1231  proc->wait_event_info = wait_event_info;
1232 }
uint32 wait_event_info
Definition: proc.h:173
PGPROC * MyProc
Definition: proc.c:67
bool pgstat_track_activities
Definition: pgstat.c:125
Definition: proc.h:95
void pgstat_report_xact_timestamp ( TimestampTz  tstamp)

Definition at line 3196 of file pgstat.c.

References MyBEEntry, pgstat_increment_changecount_after, pgstat_increment_changecount_before, pgstat_track_activities, and PgBackendStatus::st_xact_start_timestamp.

Referenced by AbortTransaction(), CommitTransaction(), PrepareTransaction(), and StartTransaction().

3197 {
3198  volatile PgBackendStatus *beentry = MyBEEntry;
3199 
3200  if (!pgstat_track_activities || !beentry)
3201  return;
3202 
3203  /*
3204  * Update my status entry, following the protocol of bumping
3205  * st_changecount before and after. We use a volatile pointer here to
3206  * ensure the compiler doesn't try to get cute.
3207  */
3209  beentry->st_xact_start_timestamp = tstamp;
3211 }
static PgBackendStatus * MyBEEntry
Definition: pgstat.c:2590
#define pgstat_increment_changecount_before(beentry)
Definition: pgstat.h:1041
#define pgstat_increment_changecount_after(beentry)
Definition: pgstat.h:1047
TimestampTz st_xact_start_timestamp
Definition: pgstat.h:986
bool pgstat_track_activities
Definition: pgstat.c:125
void pgstat_reset_all ( void  )

Definition at line 685 of file pgstat.c.

References pgstat_reset_remove_files(), pgstat_stat_directory, and PGSTAT_STAT_PERMANENT_DIRECTORY.

Referenced by StartupXLOG().

686 {
689 }
#define PGSTAT_STAT_PERMANENT_DIRECTORY
Definition: pgstat.h:29
char * pgstat_stat_directory
Definition: pgstat.c:134
static void pgstat_reset_remove_files(const char *directory)
Definition: pgstat.c:637
void pgstat_reset_counters ( void  )

Definition at line 1306 of file pgstat.c.

References PgStat_MsgResetcounter::m_databaseid, PgStat_MsgResetcounter::m_hdr, MyDatabaseId, PGINVALID_SOCKET, PGSTAT_MTYPE_RESETCOUNTER, pgstat_send(), pgstat_setheader(), and pgStatSock.

Referenced by pg_stat_reset().

1307 {
1309 
1311  return;
1312 
1314  msg.m_databaseid = MyDatabaseId;
1315  pgstat_send(&msg, sizeof(msg));
1316 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
PgStat_MsgHdr m_hdr
Definition: pgstat.h:317
#define PGINVALID_SOCKET
Definition: port.h:24
Oid MyDatabaseId
Definition: globals.c:77
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
void pgstat_reset_shared_counters ( const char *  )

Definition at line 1328 of file pgstat.c.

References ereport, errcode(), errhint(), errmsg(), ERROR, PgStat_MsgResetsharedcounter::m_hdr, PgStat_MsgResetsharedcounter::m_resettarget, PGINVALID_SOCKET, PGSTAT_MTYPE_RESETSHAREDCOUNTER, pgstat_send(), pgstat_setheader(), pgStatSock, RESET_ARCHIVER, and RESET_BGWRITER.

Referenced by pg_stat_reset_shared().

1329 {
1331 
1333  return;
1334 
1335  if (strcmp(target, "archiver") == 0)
1337  else if (strcmp(target, "bgwriter") == 0)
1339  else
1340  ereport(ERROR,
1341  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1342  errmsg("unrecognized reset target: \"%s\"", target),
1343  errhint("Target must be \"archiver\" or \"bgwriter\".")));
1344 
1346  pgstat_send(&msg, sizeof(msg));
1347 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
int errhint(const char *fmt,...)
Definition: elog.c:987
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
int errcode(int sqlerrcode)
Definition: elog.c:575
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
#define PGINVALID_SOCKET
Definition: port.h:24
PgStat_Shared_Reset_Target m_resettarget
Definition: pgstat.h:329
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
int errmsg(const char *fmt,...)
Definition: elog.c:797
void pgstat_reset_single_counter ( Oid  objectid,
PgStat_Single_Reset_Type  type 
)

Definition at line 1359 of file pgstat.c.

References PgStat_MsgResetsinglecounter::m_databaseid, PgStat_MsgResetsinglecounter::m_hdr, PgStat_MsgResetsinglecounter::m_objectid, PgStat_MsgResetsinglecounter::m_resettype, MyDatabaseId, PGINVALID_SOCKET, PGSTAT_MTYPE_RESETSINGLECOUNTER, pgstat_send(), pgstat_setheader(), and pgStatSock.

Referenced by pg_stat_reset_single_function_counters(), and pg_stat_reset_single_table_counters().

1360 {
1362 
1364  return;
1365 
1367  msg.m_databaseid = MyDatabaseId;
1368  msg.m_resettype = type;
1369  msg.m_objectid = objoid;
1370 
1371  pgstat_send(&msg, sizeof(msg));
1372 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
NON_EXEC_STATIC pgsocket pgStatSock
Definition: pgstat.c:149
#define PGINVALID_SOCKET
Definition: port.h:24
Oid MyDatabaseId
Definition: globals.c:77
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
PgStat_Single_Reset_Type m_resettype
Definition: pgstat.h:341
void pgstat_send_archiver ( const char *  xlog,
bool  failed 
)

Definition at line 4141 of file pgstat.c.

References GetCurrentTimestamp(), PgStat_MsgArchiver::m_failed, PgStat_MsgArchiver::m_hdr, PgStat_MsgArchiver::m_timestamp, PgStat_MsgArchiver::m_xlog, PGSTAT_MTYPE_ARCHIVER, pgstat_send(), pgstat_setheader(), and StrNCpy.

Referenced by pgarch_ArchiverCopyLoop().

4142 {
4143  PgStat_MsgArchiver msg;
4144 
4145  /*
4146  * Prepare and send the message
4147  */
4149  msg.m_failed = failed;
4150  StrNCpy(msg.m_xlog, xlog, sizeof(msg.m_xlog));
4152  pgstat_send(&msg, sizeof(msg));
4153 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
char m_xlog[MAX_XFN_CHARS+1]
Definition: pgstat.h:401
TimestampTz GetCurrentTimestamp(void)
Definition: timestamp.c:1570
TimestampTz m_timestamp
Definition: pgstat.h:402
#define StrNCpy(dst, src, len)
Definition: c.h:836
static void pgstat_setheader(PgStat_MsgHdr *hdr, StatMsgType mtype)
Definition: pgstat.c:4098
PgStat_MsgHdr m_hdr
Definition: pgstat.h:399
void pgstat_send_bgwriter ( void  )

Definition at line 4162 of file pgstat.c.

References PgStat_MsgBgWriter::m_hdr, MemSet, PGSTAT_MTYPE_BGWRITER, pgstat_send(), and pgstat_setheader().

Referenced by BackgroundWriterMain(), CheckpointerMain(), and CheckpointWriteDelay().

4163 {
4164  /* We assume this initializes to zeroes */
4165  static const PgStat_MsgBgWriter all_zeroes;
4166 
4167  /*
4168  * This function can be called even if nothing at all has happened. In
4169  * this case, avoid sending a completely empty message to the stats
4170  * collector.
4171  */
4172  if (memcmp(&BgWriterStats, &all_zeroes, sizeof(PgStat_MsgBgWriter)) == 0)
4173  return;
4174 
4175  /*
4176  * Prepare and send the message
4177  */
4180 
4181  /*
4182  * Clear out the statistics buffer, so it can be re-used.
4183  */
4184  MemSet(&BgWriterStats, 0, sizeof(BgWriterStats));
4185 }
static void pgstat_send(void *msg, int len)
Definition: pgstat.c:4111
PgStat_MsgHdr m_hdr
Definition: pgstat.h:411
PgStat_MsgBgWriter BgWriterStats
Definition: pgstat.c:143