PostgreSQL Source Code  git master
miscadmin.h File Reference
#include <signal.h>
#include "pgtime.h"
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Macros

#define InvalidPid   (-1)
 
#define CHECK_FOR_INTERRUPTS()
 
#define HOLD_INTERRUPTS()   (InterruptHoldoffCount++)
 
#define RESUME_INTERRUPTS()
 
#define HOLD_CANCEL_INTERRUPTS()   (QueryCancelHoldoffCount++)
 
#define RESUME_CANCEL_INTERRUPTS()
 
#define START_CRIT_SECTION()   (CritSectionCount++)
 
#define END_CRIT_SECTION()
 
#define USE_POSTGRES_DATES   0
 
#define USE_ISO_DATES   1
 
#define USE_SQL_DATES   2
 
#define USE_GERMAN_DATES   3
 
#define USE_XSD_DATES   4
 
#define DATEORDER_YMD   0
 
#define DATEORDER_DMY   1
 
#define DATEORDER_MDY   2
 
#define INTSTYLE_POSTGRES   0
 
#define INTSTYLE_POSTGRES_VERBOSE   1
 
#define INTSTYLE_SQL_STANDARD   2
 
#define INTSTYLE_ISO_8601   3
 
#define MAXTZLEN   10 /* max TZ name len, not counting tr. null */
 
#define SECURITY_LOCAL_USERID_CHANGE   0x0001
 
#define SECURITY_RESTRICTED_OPERATION   0x0002
 
#define SECURITY_NOFORCE_RLS   0x0004
 
#define IsBootstrapProcessingMode()   (Mode == BootstrapProcessing)
 
#define IsInitProcessingMode()   (Mode == InitProcessing)
 
#define IsNormalProcessingMode()   (Mode == NormalProcessing)
 
#define GetProcessingMode()   Mode
 
#define SetProcessingMode(mode)
 
#define AmBootstrapProcess()   (MyAuxProcType == BootstrapProcess)
 
#define AmStartupProcess()   (MyAuxProcType == StartupProcess)
 
#define AmBackgroundWriterProcess()   (MyAuxProcType == BgWriterProcess)
 
#define AmCheckpointerProcess()   (MyAuxProcType == CheckpointerProcess)
 
#define AmWalWriterProcess()   (MyAuxProcType == WalWriterProcess)
 
#define AmWalReceiverProcess()   (MyAuxProcType == WalReceiverProcess)
 

Typedefs

typedef char * pg_stack_base_t
 
typedef enum ProcessingMode ProcessingMode
 

Enumerations

enum  ProcessingMode { BootstrapProcessing, InitProcessing, NormalProcessing }
 
enum  AuxProcType {
  NotAnAuxProcess = -1, CheckerProcess = 0, BootstrapProcess, StartupProcess,
  BgWriterProcess, CheckpointerProcess, WalWriterProcess, WalReceiverProcess,
  NUM_AUXPROCTYPES
}
 

Functions

void ProcessInterrupts (void)
 
pg_stack_base_t set_stack_base (void)
 
void restore_stack_base (pg_stack_base_t base)
 
void check_stack_depth (void)
 
bool stack_is_too_deep (void)
 
void PostgresSigHupHandler (SIGNAL_ARGS)
 
void PreventCommandIfReadOnly (const char *cmdname)
 
void PreventCommandIfParallelMode (const char *cmdname)
 
void PreventCommandDuringRecovery (const char *cmdname)
 
int trace_recovery (int trace_level)
 
void InitPostmasterChild (void)
 
void InitStandaloneProcess (const char *argv0)
 
void SetDatabasePath (const char *path)
 
char * GetUserNameFromId (Oid roleid, bool noerr)
 
Oid GetUserId (void)
 
Oid GetOuterUserId (void)
 
Oid GetSessionUserId (void)
 
Oid GetAuthenticatedUserId (void)
 
void GetUserIdAndSecContext (Oid *userid, int *sec_context)
 
void SetUserIdAndSecContext (Oid userid, int sec_context)
 
bool InLocalUserIdChange (void)
 
bool InSecurityRestrictedOperation (void)
 
bool InNoForceRLSOperation (void)
 
void GetUserIdAndContext (Oid *userid, bool *sec_def_context)
 
void SetUserIdAndContext (Oid userid, bool sec_def_context)
 
void InitializeSessionUserId (const char *rolename, Oid useroid)
 
void InitializeSessionUserIdStandalone (void)
 
void SetSessionAuthorization (Oid userid, bool is_superuser)
 
Oid GetCurrentRoleId (void)
 
void SetCurrentRoleId (Oid roleid, bool is_superuser)
 
void SetDataDir (const char *dir)
 
void ChangeToDataDir (void)
 
void SwitchToSharedLatch (void)
 
void SwitchBackToLocalLatch (void)
 
bool superuser (void)
 
bool superuser_arg (Oid roleid)
 
void pg_split_opts (char **argv, int *argcp, const char *optstr)
 
void InitializeMaxBackends (void)
 
void InitPostgres (const char *in_dbname, Oid dboid, const char *username, Oid useroid, char *out_dbname)
 
void BaseInit (void)
 
void CreateDataDirLockFile (bool amPostmaster)
 
void CreateSocketLockFile (const char *socketfile, bool amPostmaster, const char *socketDir)
 
void TouchSocketLockFiles (void)
 
void AddToDataDirLockFile (int target_line, const char *str)
 
bool RecheckDataDirLockFile (void)
 
void ValidatePgVersion (const char *path)
 
void process_shared_preload_libraries (void)
 
void process_session_preload_libraries (void)
 
void pg_bindtextdomain (const char *domain)
 
bool has_rolreplication (Oid roleid)
 
bool BackupInProgress (void)
 
void CancelBackup (void)
 

Variables

PGDLLIMPORT volatile bool InterruptPending
 
PGDLLIMPORT volatile bool QueryCancelPending
 
PGDLLIMPORT volatile bool ProcDiePending
 
PGDLLIMPORT volatile bool IdleInTransactionSessionTimeoutPending
 
PGDLLIMPORT volatile sig_atomic_t ConfigReloadPending
 
volatile bool ClientConnectionLost
 
PGDLLIMPORT volatile uint32 InterruptHoldoffCount
 
PGDLLIMPORT volatile uint32 QueryCancelHoldoffCount
 
PGDLLIMPORT volatile uint32 CritSectionCount
 
PGDLLIMPORT pid_t PostmasterPid
 
PGDLLIMPORT bool IsPostmasterEnvironment
 
PGDLLIMPORT bool IsUnderPostmaster
 
PGDLLIMPORT bool IsBackgroundWorker
 
PGDLLIMPORT bool IsBinaryUpgrade
 
PGDLLIMPORT bool ExitOnAnyError
 
PGDLLIMPORT char * DataDir
 
PGDLLIMPORT int NBuffers
 
PGDLLIMPORT int MaxBackends
 
PGDLLIMPORT int MaxConnections
 
PGDLLIMPORT int max_worker_processes
 
int max_parallel_workers
 
PGDLLIMPORT int MyProcPid
 
PGDLLIMPORT pg_time_t MyStartTime
 
PGDLLIMPORT struct PortMyProcPort
 
PGDLLIMPORT struct LatchMyLatch
 
int32 MyCancelKey
 
int MyPMChildSlot
 
char OutputFileName []
 
PGDLLIMPORT char my_exec_path []
 
char pkglib_path []
 
PGDLLIMPORT Oid MyDatabaseId
 
PGDLLIMPORT Oid MyDatabaseTableSpace
 
PGDLLIMPORT int DateStyle
 
PGDLLIMPORT int DateOrder
 
PGDLLIMPORT int IntervalStyle
 
bool enableFsync
 
PGDLLIMPORT bool allowSystemTableMods
 
PGDLLIMPORT int work_mem
 
PGDLLIMPORT int maintenance_work_mem
 
int VacuumCostPageHit
 
int VacuumCostPageMiss
 
int VacuumCostPageDirty
 
int VacuumCostLimit
 
int VacuumCostDelay
 
int VacuumPageHit
 
int VacuumPageMiss
 
int VacuumPageDirty
 
int VacuumCostBalance
 
bool VacuumCostActive
 
int trace_recovery_messages
 
char * DatabasePath
 
ProcessingMode Mode
 
AuxProcType MyAuxProcType
 
bool IgnoreSystemIndexes
 
PGDLLIMPORT bool process_shared_preload_libraries_in_progress
 
char * session_preload_libraries_string
 
char * shared_preload_libraries_string
 
char * local_preload_libraries_string
 

Macro Definition Documentation

◆ AmBackgroundWriterProcess

#define AmBackgroundWriterProcess ( )    (MyAuxProcType == BgWriterProcess)

Definition at line 406 of file miscadmin.h.

Referenced by ForwardFsyncRequest().

◆ AmBootstrapProcess

#define AmBootstrapProcess ( )    (MyAuxProcType == BootstrapProcess)

Definition at line 404 of file miscadmin.h.

◆ AmCheckpointerProcess

#define AmCheckpointerProcess ( )    (MyAuxProcType == CheckpointerProcess)

◆ AmStartupProcess

#define AmStartupProcess ( )    (MyAuxProcType == StartupProcess)

Definition at line 405 of file miscadmin.h.

Referenced by HotStandbyActiveInReplay(), and mdinit().

◆ AmWalReceiverProcess

#define AmWalReceiverProcess ( )    (MyAuxProcType == WalReceiverProcess)

Definition at line 409 of file miscadmin.h.

Referenced by get_sync_bit().

◆ AmWalWriterProcess

#define AmWalWriterProcess ( )    (MyAuxProcType == WalWriterProcess)

Definition at line 408 of file miscadmin.h.

◆ CHECK_FOR_INTERRUPTS

#define CHECK_FOR_INTERRUPTS ( )
Value:
do { \
ProcessInterrupts(); \
} while(0)
PGDLLIMPORT volatile bool InterruptPending
Definition: globals.c:29

Definition at line 98 of file miscadmin.h.

Referenced by _bt_buildadd(), _bt_readnextpage(), _bt_walk_left(), _crypt_blowfish_rn(), _hash_init(), _hash_readnext(), _hash_readprev(), add_partial_path(), add_path(), agg_retrieve_hash_table(), analyze_rel(), ApplyLauncherMain(), apw_dump_now(), ATRewriteTable(), autoprewarm_database_main(), backend_read_statsfile(), BipartiteMatch(), BitmapHeapNext(), blgetbitmap(), bloomBuildCallback(), brin_evacuate_page(), brin_getinsertbuffer(), brin_vacuum_scan(), bringetbitmap(), brinGetTupleForHeapBlock(), brininsert(), brinsummarize(), bt_check_level_from_leftmost(), bt_right_page_check_scankey(), bt_target_page_check(), btree_xlog_delete_get_latestRemovedXid(), BufFileDeleteShared(), BufFileOpenShared(), calculate_database_size(), calculate_relation_size(), calculate_tablespace_size(), check_default_allows_bound(), CheckSCRAMAuth(), ClientAuthentication(), cluster_rel(), collect_corrupt_items(), collect_visibility_data(), ConditionVariableSleep(), copy_file(), copy_heap_data(), copy_messages(), copy_read_data(), copy_relation_data(), copydir(), CopyFrom(), CopyTo(), count_nondeletable_pages(), CountOtherDBBackends(), db_dir_size(), DecodingContextFindStartpoint(), do_autovacuum(), do_des(), do_pg_stop_backup(), dofindsubquery(), errfinish(), exec_execute_message(), exec_parse_message(), exec_replication_command(), exec_simple_query(), exec_stmt(), exec_stmts(), ExecAgg(), ExecAppend(), ExecCustomScan(), ExecGather(), ExecGatherMerge(), ExecGroup(), ExecHashIncreaseNumBatches(), ExecHashIncreaseNumBuckets(), ExecHashJoin(), ExecHashJoinGetSavedTuple(), ExecHashRemoveNextSkewBucket(), ExecLimit(), ExecLockRows(), ExecMakeTableFunctionResult(), ExecMaterial(), ExecMergeAppend(), ExecMergeJoin(), ExecModifyTable(), ExecNestLoop(), ExecProjectSet(), ExecRecursiveUnion(), ExecResult(), ExecScanFetch(), ExecScanHashTableForUnmatched(), ExecSetOp(), ExecSort(), ExecSubPlan(), ExecUnique(), ExecWindowAgg(), fetch_input_tuple(), findPartialMatch(), fsm_vacuum_page(), gather_getnext(), gather_merge_init(), gather_readnext(), get_query_def(), get_rule_expr(), get_setop_query(), GetMultiXactIdMembers(), GetNewOidWithIndex(), GetNewRelFileNode(), getNextNearest(), ginbuild(), ginBuildCallback(), gingetbitmap(), gistgetbitmap(), gistgettuple(), gistProcessItup(), gm_readnext_tuple(), HandleFunctionRequest(), hash_xlog_vacuum_get_latestRemovedXid(), heap_lock_updated_tuple_rec(), heap_multi_insert(), heapgetpage(), hypothetical_dense_rank_final(), hypothetical_rank_common(), ident_inet(), IndexBuildHeapRangeScan(), IndexCheckExclusion(), IndexNext(), IndexNextWithReorder(), IndexOnlyNext(), initialize_worker_spi(), interactive_getc(), lazy_truncate_heap(), libpqrcv_connect(), libpqrcv_PQexec(), libpqrcv_processTuples(), logicalrep_worker_stop(), LogicalRepApplyLoop(), lseg_inside_poly(), make_bounded_heap(), mode_final(), mq_putmessage(), MultiExecBitmapIndexScan(), MultiExecProcNode(), numeric_fac(), OpenTableList(), pg_logical_slot_get_changes_guts(), pg_prewarm(), pg_sleep(), pg_visibility_map_summary(), pgfdw_get_cleanup_result(), pgfdw_get_result(), PGSemaphoreLock(), pgstat_collect_oids(), pgstat_get_backend_current_activity(), pgstat_heap(), pgstat_index(), pgstat_read_current_status(), pgstat_vacuum_stat(), pgstathashindex(), pgstatindex_impl(), plperl_spi_prepare(), PortalRunMulti(), postgresAcquireSampleRowsFunc(), PostgresMain(), predicate_implied_by_simple_clause(), predicate_refuted_by_simple_clause(), process_ordered_aggregate_multi(), ProcessClientReadInterrupt(), ProcessClientWriteInterrupt(), ProcessWalRcvInterrupts(), ProcSleep(), ProcWaitForSignal(), puttuple_common(), random_relative_prime(), RE_compile_and_cache(), RE_wchar_execute(), read_local_xlog_page(), refresh_matview_datafill(), regexp_fixed_prefix(), replace_text(), replace_text_regexp(), replorigin_create(), RequestCheckpoint(), revmap_extend_and_get_blkno(), sendAuthRequest(), sendDir(), set_rtable_names(), setop_retrieve_hash_table(), shm_mq_receive_bytes(), shm_mq_send_bytes(), shm_mq_wait_internal(), spgdoinsert(), spgWalk(), statapprox_heap(), storeQueryResult(), summarize_range(), tablesample_getnext(), test_shm_mq_pipelined(), text_to_array_internal(), tfuncLoadRows(), throttle(), TidNext(), toast_save_datum(), tuplesort_heap_insert(), tuplesort_heap_replace_top(), tuplesort_skiptuples(), tuplestore_skiptuples(), vacuum_delay_point(), vacuum_rel(), validate_index_heapscan(), wait_for_relation_state_change(), wait_for_worker_state_change(), wait_for_workers_to_become_ready(), wait_pid(), WaitExceedsMaxStandbyDelay(), WaitForBackgroundWorkerShutdown(), WaitForBackgroundWorkerStartup(), WaitForParallelWorkersToFinish(), WaitForReplicationWorkerAttach(), walkdir(), WalSndLoop(), WalSndWaitForWal(), WalSndWriteData(), and window_gettupleslot().

◆ DATEORDER_DMY

#define DATEORDER_DMY   1

◆ DATEORDER_MDY

#define DATEORDER_MDY   2

Definition at line 219 of file miscadmin.h.

Referenced by check_datestyle(), locale_date_order(), and setup_config().

◆ DATEORDER_YMD

#define DATEORDER_YMD   0

Definition at line 217 of file miscadmin.h.

Referenced by check_datestyle(), DecodeNumber(), locale_date_order(), and setup_config().

◆ END_CRIT_SECTION

#define END_CRIT_SECTION ( )
Value:
do { \
Assert(CritSectionCount > 0); \
CritSectionCount--; \
} while(0)
PGDLLIMPORT volatile uint32 CritSectionCount
Definition: globals.c:37

Definition at line 133 of file miscadmin.h.

Referenced by _bt_delitems_delete(), _bt_delitems_vacuum(), _bt_getroot(), _bt_insertonpg(), _bt_mark_page_halfdead(), _bt_newroot(), _bt_split(), _bt_unlink_halfdead_page(), _hash_addovflpage(), _hash_doinsert(), _hash_expandtable(), _hash_freeovflpage(), _hash_splitbucket(), _hash_squeezebucket(), _hash_vacuum_one_page(), AbsorbFsyncRequests(), addLeafTuple(), brin_doinsert(), brin_doupdate(), brin_initialize_empty_new_buffer(), brinbuildempty(), brinRevmapDesummarizeRange(), CreateCheckPoint(), CreateEndOfRecoveryRecord(), createPostingTree(), CreateSlotOnDisk(), do_setval(), doPickSplit(), EndPrepare(), fill_seq_with_data(), FreeSpaceMapTruncateRel(), GenericXLogFinish(), ginbuild(), ginbuildempty(), ginbulkdelete(), ginDeletePage(), ginHeapTupleFastInsert(), ginPlaceToPage(), ginUpdateStats(), ginVacuumPostingTreeLeaf(), gistbuild(), gistbuildempty(), gistbulkdelete(), gistplacetopage(), gistvacuumpage(), hashbucketcleanup(), hashbulkdelete(), heap_abort_speculative(), heap_delete(), heap_finish_speculative(), heap_inplace_update(), heap_insert(), heap_lock_tuple(), heap_lock_updated_tuple_rec(), heap_multi_insert(), heap_page_prune(), heap_update(), lazy_scan_heap(), lazy_vacuum_page(), moveLeafs(), MultiXactIdCreateFromMembers(), nextval_internal(), PostPrepare_Locks(), RecordTransactionAbort(), RecordTransactionAbortPrepared(), RecordTransactionCommit(), RecordTransactionCommitPrepared(), ReplicationSlotDropPtr(), RestoreSlotFromDisk(), revmap_physical_extend(), SaveSlotToPath(), shiftList(), SlruPhysicalWritePage(), spgAddNodeAction(), spgbuild(), spgSplitNodeAction(), TruncateMultiXact(), UpdateFullPageWrites(), vacuumLeafPage(), vacuumLeafRoot(), vacuumRedirectAndPlaceholder(), visibilitymap_set(), visibilitymap_truncate(), write_relmap_file(), writeListPage(), XLogBackgroundFlush(), XLogFlush(), and XLogInsertRecord().

◆ GetProcessingMode

#define GetProcessingMode ( )    Mode

Definition at line 371 of file miscadmin.h.

◆ HOLD_CANCEL_INTERRUPTS

#define HOLD_CANCEL_INTERRUPTS ( )    (QueryCancelHoldoffCount++)

Definition at line 123 of file miscadmin.h.

Referenced by CopyGetData(), and SocketBackend().

◆ HOLD_INTERRUPTS

◆ INTSTYLE_ISO_8601

#define INTSTYLE_ISO_8601   3

Definition at line 234 of file miscadmin.h.

Referenced by EncodeInterval().

◆ INTSTYLE_POSTGRES

#define INTSTYLE_POSTGRES   0

Definition at line 231 of file miscadmin.h.

Referenced by EncodeInterval(), and set_transmission_modes().

◆ INTSTYLE_POSTGRES_VERBOSE

#define INTSTYLE_POSTGRES_VERBOSE   1

Definition at line 232 of file miscadmin.h.

Referenced by DecodeInterval(), EncodeInterval(), and PGTYPESinterval_to_asc().

◆ INTSTYLE_SQL_STANDARD

#define INTSTYLE_SQL_STANDARD   2

Definition at line 233 of file miscadmin.h.

Referenced by DecodeInterval(), and EncodeInterval().

◆ InvalidPid

◆ IsBootstrapProcessingMode

◆ IsInitProcessingMode

#define IsInitProcessingMode ( )    (Mode == InitProcessing)

◆ IsNormalProcessingMode

#define IsNormalProcessingMode ( )    (Mode == NormalProcessing)

◆ MAXTZLEN

#define MAXTZLEN   10 /* max TZ name len, not counting tr. null */

Definition at line 238 of file miscadmin.h.

Referenced by abstime2tm(), and EncodeDateTime().

◆ RESUME_CANCEL_INTERRUPTS

#define RESUME_CANCEL_INTERRUPTS ( )
Value:
do { \
Assert(QueryCancelHoldoffCount > 0); \
QueryCancelHoldoffCount--; \
} while(0)
PGDLLIMPORT volatile uint32 QueryCancelHoldoffCount
Definition: globals.c:36

Definition at line 125 of file miscadmin.h.

Referenced by CopyGetData(), and SocketBackend().

◆ RESUME_INTERRUPTS

◆ SECURITY_LOCAL_USERID_CHANGE

◆ SECURITY_NOFORCE_RLS

#define SECURITY_NOFORCE_RLS   0x0004

Definition at line 295 of file miscadmin.h.

Referenced by InNoForceRLSOperation(), ri_PerformCheck(), and ri_PlanCheck().

◆ SECURITY_RESTRICTED_OPERATION

#define SECURITY_RESTRICTED_OPERATION   0x0002

◆ SetProcessingMode

#define SetProcessingMode (   mode)

◆ START_CRIT_SECTION

#define START_CRIT_SECTION ( )    (CritSectionCount++)

Definition at line 131 of file miscadmin.h.

Referenced by _bt_delitems_delete(), _bt_delitems_vacuum(), _bt_getroot(), _bt_insertonpg(), _bt_mark_page_halfdead(), _bt_newroot(), _bt_split(), _bt_unlink_halfdead_page(), _hash_addovflpage(), _hash_doinsert(), _hash_expandtable(), _hash_freeovflpage(), _hash_splitbucket(), _hash_squeezebucket(), _hash_vacuum_one_page(), AbsorbFsyncRequests(), addLeafTuple(), brin_doinsert(), brin_doupdate(), brin_initialize_empty_new_buffer(), brinbuildempty(), brinRevmapDesummarizeRange(), CreateCheckPoint(), CreateEndOfRecoveryRecord(), createPostingTree(), CreateSlotOnDisk(), do_setval(), doPickSplit(), EndPrepare(), fill_seq_with_data(), FreeSpaceMapTruncateRel(), GenericXLogFinish(), GetNewMultiXactId(), ginbuild(), ginbuildempty(), ginbulkdelete(), ginDeletePage(), ginHeapTupleFastInsert(), ginPlaceToPage(), ginUpdateStats(), ginVacuumPostingTreeLeaf(), gistbuild(), gistbuildempty(), gistbulkdelete(), gistplacetopage(), gistvacuumpage(), hashbucketcleanup(), hashbulkdelete(), heap_abort_speculative(), heap_delete(), heap_finish_speculative(), heap_inplace_update(), heap_insert(), heap_lock_tuple(), heap_lock_updated_tuple_rec(), heap_multi_insert(), heap_page_prune(), heap_update(), lazy_scan_heap(), lazy_vacuum_page(), moveLeafs(), nextval_internal(), PostPrepare_Locks(), RecordTransactionAbort(), RecordTransactionAbortPrepared(), RecordTransactionCommit(), RecordTransactionCommitPrepared(), ReplicationSlotDropPtr(), RestoreSlotFromDisk(), revmap_physical_extend(), SaveSlotToPath(), shiftList(), SlruPhysicalWritePage(), spgAddNodeAction(), spgbuild(), spgSplitNodeAction(), TruncateMultiXact(), UpdateFullPageWrites(), vacuumLeafPage(), vacuumLeafRoot(), vacuumRedirectAndPlaceholder(), visibilitymap_set(), visibilitymap_truncate(), write_relmap_file(), writeListPage(), XLogBackgroundFlush(), XLogFlush(), and XLogInsertRecord().

◆ USE_GERMAN_DATES

#define USE_GERMAN_DATES   3

Definition at line 213 of file miscadmin.h.

Referenced by check_datestyle(), EncodeDateOnly(), and EncodeDateTime().

◆ USE_ISO_DATES

#define USE_ISO_DATES   1

◆ USE_POSTGRES_DATES

#define USE_POSTGRES_DATES   0

Definition at line 210 of file miscadmin.h.

Referenced by check_datestyle(), EncodeDateOnly(), and EncodeDateTime().

◆ USE_SQL_DATES

#define USE_SQL_DATES   2

Definition at line 212 of file miscadmin.h.

Referenced by check_datestyle(), EncodeDateOnly(), and EncodeDateTime().

◆ USE_XSD_DATES

#define USE_XSD_DATES   4

Typedef Documentation

◆ pg_stack_base_t

Definition at line 268 of file miscadmin.h.

◆ ProcessingMode

Enumeration Type Documentation

◆ AuxProcType

Enumerator
NotAnAuxProcess 
CheckerProcess 
BootstrapProcess 
StartupProcess 
BgWriterProcess 
CheckpointerProcess 
WalWriterProcess 
WalReceiverProcess 
NUM_AUXPROCTYPES 

Definition at line 388 of file miscadmin.h.

◆ ProcessingMode

Enumerator
BootstrapProcessing 
InitProcessing 
NormalProcessing 

Definition at line 358 of file miscadmin.h.

359 {
360  BootstrapProcessing, /* bootstrap creation of template database */
361  InitProcessing, /* initializing system */
362  NormalProcessing /* normal processing */
ProcessingMode
Definition: miscadmin.h:358

Function Documentation

◆ AddToDataDirLockFile()

void AddToDataDirLockFile ( int  target_line,
const char *  str 
)

Definition at line 1158 of file miscinit.c.

References close, DIRECTORY_LOCK_FILE, ereport, errcode_for_file_access(), errmsg(), fd(), LOG, PG_BINARY, pg_fsync(), pgstat_report_wait_end(), pgstat_report_wait_start(), read, snprintf(), WAIT_EVENT_LOCK_FILE_ADDTODATADIR_READ, WAIT_EVENT_LOCK_FILE_ADDTODATADIR_SYNC, WAIT_EVENT_LOCK_FILE_ADDTODATADIR_WRITE, and write.

Referenced by InternalIpcMemoryCreate(), pmdie(), PostmasterMain(), reaper(), and sigusr1_handler().

1159 {
1160  int fd;
1161  int len;
1162  int lineno;
1163  char *srcptr;
1164  char *destptr;
1165  char srcbuffer[BLCKSZ];
1166  char destbuffer[BLCKSZ];
1167 
1168  fd = open(DIRECTORY_LOCK_FILE, O_RDWR | PG_BINARY, 0);
1169  if (fd < 0)
1170  {
1171  ereport(LOG,
1173  errmsg("could not open file \"%s\": %m",
1175  return;
1176  }
1178  len = read(fd, srcbuffer, sizeof(srcbuffer) - 1);
1180  if (len < 0)
1181  {
1182  ereport(LOG,
1184  errmsg("could not read from file \"%s\": %m",
1186  close(fd);
1187  return;
1188  }
1189  srcbuffer[len] = '\0';
1190 
1191  /*
1192  * Advance over lines we are not supposed to rewrite, then copy them to
1193  * destbuffer.
1194  */
1195  srcptr = srcbuffer;
1196  for (lineno = 1; lineno < target_line; lineno++)
1197  {
1198  char *eol = strchr(srcptr, '\n');
1199 
1200  if (eol == NULL)
1201  break; /* not enough lines in file yet */
1202  srcptr = eol + 1;
1203  }
1204  memcpy(destbuffer, srcbuffer, srcptr - srcbuffer);
1205  destptr = destbuffer + (srcptr - srcbuffer);
1206 
1207  /*
1208  * Fill in any missing lines before the target line, in case lines are
1209  * added to the file out of order.
1210  */
1211  for (; lineno < target_line; lineno++)
1212  {
1213  if (destptr < destbuffer + sizeof(destbuffer))
1214  *destptr++ = '\n';
1215  }
1216 
1217  /*
1218  * Write or rewrite the target line.
1219  */
1220  snprintf(destptr, destbuffer + sizeof(destbuffer) - destptr, "%s\n", str);
1221  destptr += strlen(destptr);
1222 
1223  /*
1224  * If there are more lines in the old file, append them to destbuffer.
1225  */
1226  if ((srcptr = strchr(srcptr, '\n')) != NULL)
1227  {
1228  srcptr++;
1229  snprintf(destptr, destbuffer + sizeof(destbuffer) - destptr, "%s",
1230  srcptr);
1231  }
1232 
1233  /*
1234  * And rewrite the data. Since we write in a single kernel call, this
1235  * update should appear atomic to onlookers.
1236  */
1237  len = strlen(destbuffer);
1238  errno = 0;
1240  if (lseek(fd, (off_t) 0, SEEK_SET) != 0 ||
1241  (int) write(fd, destbuffer, len) != len)
1242  {
1244  /* if write didn't set errno, assume problem is no disk space */
1245  if (errno == 0)
1246  errno = ENOSPC;
1247  ereport(LOG,
1249  errmsg("could not write to file \"%s\": %m",
1251  close(fd);
1252  return;
1253  }
1256  if (pg_fsync(fd) != 0)
1257  {
1258  ereport(LOG,
1260  errmsg("could not write to file \"%s\": %m",
1262  }
1264  if (close(fd) != 0)
1265  {
1266  ereport(LOG,
1268  errmsg("could not write to file \"%s\": %m",
1270  }
1271 }
#define write(a, b, c)
Definition: win32.h:14
#define DIRECTORY_LOCK_FILE
Definition: miscinit.c:55
int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
#define LOG
Definition: elog.h:26
static int fd(const char *x, int i)
Definition: preproc-init.c:105
#define PG_BINARY
Definition: c.h:1025
int errcode_for_file_access(void)
Definition: elog.c:598
static void pgstat_report_wait_end(void)
Definition: pgstat.h:1244
#define ereport(elevel, rest)
Definition: elog.h:122
static void pgstat_report_wait_start(uint32 wait_event_info)
Definition: pgstat.h:1220
int errmsg(const char *fmt,...)
Definition: elog.c:797
int pg_fsync(int fd)
Definition: fd.c:347
#define close(a)
Definition: win32.h:12
#define read(a, b, c)
Definition: win32.h:13

◆ BackupInProgress()

bool BackupInProgress ( void  )

Definition at line 11381 of file xlog.c.

References BACKUP_LABEL_FILE, and stat.

Referenced by pg_is_in_backup(), and PostmasterStateMachine().

11382 {
11383  struct stat stat_buf;
11384 
11385  return (stat(BACKUP_LABEL_FILE, &stat_buf) == 0);
11386 }
struct stat stat_buf
Definition: pg_standby.c:103
#define stat(a, b)
Definition: win32_port.h:266
#define BACKUP_LABEL_FILE
Definition: xlog.h:322

◆ BaseInit()

void BaseInit ( void  )

Definition at line 518 of file postinit.c.

References DebugFileOpen(), InitBufferPoolAccess(), InitCommunication(), InitFileAccess(), and smgrinit().

Referenced by AutoVacLauncherMain(), AutoVacWorkerMain(), AuxiliaryProcessMain(), PostgresMain(), and StartBackgroundWorker().

519 {
520  /*
521  * Attach to shared memory and semaphores, and initialize our
522  * input/output/debugging file descriptors.
523  */
525  DebugFileOpen();
526 
527  /* Do local initialization of file, storage and buffer managers */
528  InitFileAccess();
529  smgrinit();
531 }
static void InitCommunication(void)
Definition: postinit.c:410
void InitBufferPoolAccess(void)
Definition: bufmgr.c:2437
void DebugFileOpen(void)
Definition: elog.c:1863
void smgrinit(void)
Definition: smgr.c:102
void InitFileAccess(void)
Definition: fd.c:778

◆ CancelBackup()

void CancelBackup ( void  )

Definition at line 11401 of file xlog.c.

References BACKUP_LABEL_FILE, BACKUP_LABEL_OLD, DEBUG1, durable_rename(), ereport, errcode_for_file_access(), errdetail(), errmsg(), LOG, stat, TABLESPACE_MAP, TABLESPACE_MAP_OLD, and WARNING.

Referenced by PostmasterStateMachine().

11402 {
11403  struct stat stat_buf;
11404 
11405  /* if the backup_label file is not there, return */
11406  if (stat(BACKUP_LABEL_FILE, &stat_buf) < 0)
11407  return;
11408 
11409  /* remove leftover file from previously canceled backup if it exists */
11410  unlink(BACKUP_LABEL_OLD);
11411 
11413  {
11414  ereport(WARNING,
11416  errmsg("online backup mode was not canceled"),
11417  errdetail("File \"%s\" could not be renamed to \"%s\": %m.",
11419  return;
11420  }
11421 
11422  /* if the tablespace_map file is not there, return */
11423  if (stat(TABLESPACE_MAP, &stat_buf) < 0)
11424  {
11425  ereport(LOG,
11426  (errmsg("online backup mode canceled"),
11427  errdetail("File \"%s\" was renamed to \"%s\".",
11429  return;
11430  }
11431 
11432  /* remove leftover file from previously canceled backup if it exists */
11433  unlink(TABLESPACE_MAP_OLD);
11434 
11436  {
11437  ereport(LOG,
11438  (errmsg("online backup mode canceled"),
11439  errdetail("Files \"%s\" and \"%s\" were renamed to "
11440  "\"%s\" and \"%s\", respectively.",
11443  }
11444  else
11445  {
11446  ereport(WARNING,
11448  errmsg("online backup mode canceled"),
11449  errdetail("File \"%s\" was renamed to \"%s\", but "
11450  "file \"%s\" could not be renamed to \"%s\": %m.",
11453  }
11454 }
#define DEBUG1
Definition: elog.h:25
#define LOG
Definition: elog.h:26
#define BACKUP_LABEL_OLD
Definition: xlog.h:323
#define TABLESPACE_MAP
Definition: xlog.h:325
struct stat stat_buf
Definition: pg_standby.c:103
int errdetail(const char *fmt,...)
Definition: elog.c:873
int errcode_for_file_access(void)
Definition: elog.c:598
#define ereport(elevel, rest)
Definition: elog.h:122
int durable_rename(const char *oldfile, const char *newfile, int elevel)
Definition: fd.c:607
#define WARNING
Definition: elog.h:40
#define stat(a, b)
Definition: win32_port.h:266
#define TABLESPACE_MAP_OLD
Definition: xlog.h:326
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define BACKUP_LABEL_FILE
Definition: xlog.h:322

◆ ChangeToDataDir()

void ChangeToDataDir ( void  )

Definition at line 116 of file miscinit.c.

References AssertState, DataDir, ereport, errcode_for_file_access(), errmsg(), and FATAL.

Referenced by AuxiliaryProcessMain(), PostgresMain(), and PostmasterMain().

117 {
119 
120  if (chdir(DataDir) < 0)
121  ereport(FATAL,
123  errmsg("could not change directory to \"%s\": %m",
124  DataDir)));
125 }
#define AssertState(condition)
Definition: c.h:673
#define FATAL
Definition: elog.h:52
int errcode_for_file_access(void)
Definition: elog.c:598
#define ereport(elevel, rest)
Definition: elog.h:122
int errmsg(const char *fmt,...)
Definition: elog.c:797
char * DataDir
Definition: globals.c:60

◆ check_stack_depth()

void check_stack_depth ( void  )

Definition at line 3150 of file postgres.c.

References ereport, errcode(), errhint(), errmsg(), ERROR, max_stack_depth, and stack_is_too_deep().

Referenced by clean_NOT_intree(), clean_stopword_intree(), cntsize(), contains_required_value(), convertJsonbValue(), copyObjectImpl(), Cover(), datum_to_json(), datum_to_jsonb(), dofindsubquery(), EventTriggerInvoke(), ExecEndNode(), ExecEvalAlternativeSubPlan(), ExecEvalSubPlan(), ExecInitExprRec(), ExecInitNode(), ExecMakeFunctionResultSet(), ExecProcNodeFirst(), ExecShutdownNode(), execute(), expand_partitioned_rtentry(), expression_tree_mutator(), expression_tree_walker(), fillQT(), find_composite_type_dependencies(), findoprnd(), findoprnd_recurse(), flatten_grouping_sets(), FreePageManagerDumpBtree(), freetree(), generate_partition_qual(), generate_partition_wise_join_paths(), get_partition_dispatch_recurse(), get_query_def(), get_rels_with_domain(), get_rule_expr(), get_setop_query(), gistSplit(), hash_range(), hash_range_extended(), hk_depth_search(), infix(), inline_set_returning_function(), int_query_opr_selec(), JsonbDeepContains(), JumbleExpr(), ltree_execute(), makepol(), maketree(), MatchText(), MultiExecProcNode(), parse_array(), parse_object(), plainnode(), plperl_hash_from_tuple(), plperl_sv_to_datum(), PLy_input_setup_func(), PLy_output_setup_func(), populate_array_dim_jsonb(), populate_record_field(), QT2QTN(), QTNBinary(), QTNClearFlags(), QTNCopy(), QTNFree(), QTNodeCompare(), QTNSort(), QTNTernary(), range_cmp(), range_in(), range_out(), range_recv(), range_send(), raw_expression_tree_walker(), record_cmp(), record_eq(), record_in(), record_out(), record_recv(), record_send(), set_append_rel_size(), setPath(), split_array(), transformExprRecurse(), transformSetOperationTree(), traverse_lacons(), try_partition_wise_join(), TS_execute(), TS_execute_ternary(), TS_phrase_execute(), tsquery_opr_selec(), and tsquery_requires_match().

3151 {
3152  if (stack_is_too_deep())
3153  {
3154  ereport(ERROR,
3155  (errcode(ERRCODE_STATEMENT_TOO_COMPLEX),
3156  errmsg("stack depth limit exceeded"),
3157  errhint("Increase the configuration parameter \"max_stack_depth\" (currently %dkB), "
3158  "after ensuring the platform's stack depth limit is adequate.",
3159  max_stack_depth)));
3160  }
3161 }
int errhint(const char *fmt,...)
Definition: elog.c:987
int errcode(int sqlerrcode)
Definition: elog.c:575
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
int max_stack_depth
Definition: postgres.c:96
int errmsg(const char *fmt,...)
Definition: elog.c:797
bool stack_is_too_deep(void)
Definition: postgres.c:3164

◆ CreateDataDirLockFile()

void CreateDataDirLockFile ( bool  amPostmaster)

Definition at line 1081 of file miscinit.c.

References CreateLockFile(), DataDir, and DIRECTORY_LOCK_FILE.

Referenced by AuxiliaryProcessMain(), PostgresMain(), and PostmasterMain().

1082 {
1083  CreateLockFile(DIRECTORY_LOCK_FILE, amPostmaster, "", true, DataDir);
1084 }
#define DIRECTORY_LOCK_FILE
Definition: miscinit.c:55
static void CreateLockFile(const char *filename, bool amPostmaster, const char *socketDir, bool isDDLock, const char *refName)
Definition: miscinit.c:769
char * DataDir
Definition: globals.c:60

◆ CreateSocketLockFile()

void CreateSocketLockFile ( const char *  socketfile,
bool  amPostmaster,
const char *  socketDir 
)

Definition at line 1090 of file miscinit.c.

References CreateLockFile(), MAXPGPATH, and snprintf().

Referenced by StreamServerPort().

1092 {
1093  char lockfile[MAXPGPATH];
1094 
1095  snprintf(lockfile, sizeof(lockfile), "%s.lock", socketfile);
1096  CreateLockFile(lockfile, amPostmaster, socketDir, false, socketfile);
1097 }
int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
static void CreateLockFile(const char *filename, bool amPostmaster, const char *socketDir, bool isDDLock, const char *refName)
Definition: miscinit.c:769
#define MAXPGPATH

◆ GetAuthenticatedUserId()

Oid GetAuthenticatedUserId ( void  )

Definition at line 343 of file miscinit.c.

References AssertState, AuthenticatedUserId, and OidIsValid.

Referenced by InitializeParallelDSM().

344 {
346  return AuthenticatedUserId;
347 }
#define AssertState(condition)
Definition: c.h:673
#define OidIsValid(objectId)
Definition: c.h:576
static Oid AuthenticatedUserId
Definition: miscinit.c:156

◆ GetCurrentRoleId()

Oid GetCurrentRoleId ( void  )

Definition at line 636 of file miscinit.c.

References InvalidOid, OuterUserId, and SetRoleIsActive.

Referenced by InitializeParallelDSM(), and show_role().

637 {
638  if (SetRoleIsActive)
639  return OuterUserId;
640  else
641  return InvalidOid;
642 }
static Oid OuterUserId
Definition: miscinit.c:158
#define InvalidOid
Definition: postgres_ext.h:36
static bool SetRoleIsActive
Definition: miscinit.c:168

◆ GetOuterUserId()

Oid GetOuterUserId ( void  )

Definition at line 295 of file miscinit.c.

References AssertState, OidIsValid, and OuterUserId.

Referenced by DropRole(), and RenameRole().

296 {
298  return OuterUserId;
299 }
#define AssertState(condition)
Definition: c.h:673
static Oid OuterUserId
Definition: miscinit.c:158
#define OidIsValid(objectId)
Definition: c.h:576

◆ GetSessionUserId()

Oid GetSessionUserId ( void  )

Definition at line 318 of file miscinit.c.

References AssertState, OidIsValid, and SessionUserId.

Referenced by check_role(), DropRole(), get_rolespec_oid(), get_rolespec_tuple(), InitPostgres(), is_admin_of_role(), pgstat_bestart(), RenameRole(), and session_user().

319 {
321  return SessionUserId;
322 }
#define AssertState(condition)
Definition: c.h:673
static Oid SessionUserId
Definition: miscinit.c:157
#define OidIsValid(objectId)
Definition: c.h:576

◆ GetUserId()

Oid GetUserId ( void  )

Definition at line 284 of file miscinit.c.

References AssertState, CurrentUserId, and OidIsValid.

Referenced by AddRoleMems(), AggregateCreate(), AlterCollation(), AlterDatabase(), AlterDatabaseOwner(), AlterDatabaseSet(), AlterEventTrigger(), AlterEventTriggerOwner_internal(), AlterExtensionNamespace(), AlterForeignServer(), AlterForeignServerOwner_internal(), AlterFunction(), AlterObjectNamespace_internal(), AlterObjectOwner_internal(), AlterObjectRename_internal(), AlterOperator(), AlterOpFamilyAdd(), AlterPublication(), AlterPublicationOwner_internal(), AlterRole(), AlterRoleSet(), AlterSchemaOwner_internal(), AlterSubscription(), AlterSubscriptionOwner_internal(), AlterTableMoveAll(), AlterTableSpaceOptions(), AlterTSConfiguration(), AlterTSDictionary(), AlterTypeNamespace_oid(), AlterTypeOwner(), analyze_rel(), ATExecAddColumn(), ATExecChangeOwner(), ATPrepAlterColumnType(), ATPrepSetStatistics(), ATPrepSetTableSpace(), ATSimplePermissions(), be_lo_put(), be_lo_unlink(), binary_upgrade_create_empty_extension(), brin_desummarize_range(), brin_summarize_range(), BuildCachedPlan(), BuildDescForRelation(), BuildIndexValueDescription(), calculate_database_size(), calculate_tablespace_size(), call_pltcl_start_proc(), check_enable_rls(), check_permissions(), check_temp_tablespaces(), CheckCachedPlan(), checkDomainOwner(), checkEnumOwner(), checkFkeyPermissions(), CheckFunctionValidatorAccess(), CheckMyDatabase(), cluster_rel(), CommentObject(), compile_plperl_function(), compile_pltcl_function(), CompleteCachedPlan(), compute_return_type(), CreateCast(), CreateConversionCommand(), createdb(), CreateEventTrigger(), CreateExtensionInternal(), CreateForeignDataWrapper(), CreateForeignServer(), CreateForeignTable(), CreateFunction(), CreateOpFamily(), CreateProceduralLanguage(), CreatePublication(), CreateRole(), CreateStatistics(), CreateSubscription(), CreateTableSpace(), CreateTransform(), CreateTrigger(), current_user(), currtid_byrelname(), currtid_byreloid(), currval_oid(), DefineAggregate(), DefineCollation(), DefineDomain(), DefineEnum(), DefineIndex(), DefineOpClass(), DefineOperator(), DefineOpFamily(), DefineQueryRewrite(), DefineRange(), DefineRelation(), DefineTSConfiguration(), DefineTSDictionary(), DefineType(), DelRoleMems(), do_setval(), dropdb(), DropOwnedObjects(), DropRole(), DropSubscription(), DropTableSpace(), EnableDisableRule(), examine_simple_variable(), examine_variable(), ExecAlterDefaultPrivilegesStmt(), ExecAlterExtensionContentsStmt(), ExecAlterExtensionStmt(), ExecBuildSlotPartitionKeyDescription(), ExecBuildSlotValueDescription(), ExecCheckRTEPerms(), ExecGrant_Attribute(), ExecGrant_Database(), ExecGrant_Fdw(), ExecGrant_ForeignServer(), ExecGrant_Function(), ExecGrant_Language(), ExecGrant_Largeobject(), ExecGrant_Namespace(), ExecGrant_Relation(), ExecGrant_Tablespace(), ExecGrant_Type(), ExecInitAgg(), ExecInitExprRec(), ExecInitFunc(), ExecInitWindowAgg(), ExecSecLabelStmt(), ExecuteCallStmt(), ExecuteDoStmt(), ExecuteTruncate(), findRangeCanonicalFunction(), findRangeSubtypeDiffFunction(), FinishPreparedTransaction(), get_connect_string(), get_other_operator(), get_rel_from_relname(), get_rolespec_oid(), get_rolespec_tuple(), get_row_security_policies(), get_tables_to_cluster(), GetConfigOption(), GetConfigOptionByName(), GetConfigOptionByNum(), GetConfigOptionResetString(), gin_clean_pending_list(), GrantRole(), HandleFunctionRequest(), has_any_column_privilege_id(), has_any_column_privilege_name(), has_column_privilege_id_attnum(), has_column_privilege_id_name(), has_column_privilege_name_attnum(), has_column_privilege_name_name(), has_database_privilege_id(), has_database_privilege_name(), has_foreign_data_wrapper_privilege_id(), has_foreign_data_wrapper_privilege_name(), has_function_privilege_id(), has_function_privilege_name(), has_language_privilege_id(), has_language_privilege_name(), has_schema_privilege_id(), has_schema_privilege_name(), has_sequence_privilege_id(), has_sequence_privilege_name(), has_server_privilege_id(), has_server_privilege_name(), has_table_privilege_id(), has_table_privilege_name(), has_tablespace_privilege_id(), has_tablespace_privilege_name(), has_type_privilege_id(), has_type_privilege_name(), have_createdb_privilege(), have_createrole_privilege(), ImportForeignSchema(), init_sexpr(), InitializeSearchPath(), InitPostgres(), InitTempTableNamespace(), inline_function(), inline_set_returning_function(), insert_username(), interpret_function_parameter_list(), inv_create(), inv_open(), LargeObjectCreate(), lastval(), LockTableAclCheck(), lookup_agg_function(), LookupCreationNamespace(), LookupExplicitNamespace(), MergeAttributes(), movedb(), nextval_internal(), OperatorCreate(), OperatorShellMake(), pg_has_role_id(), pg_has_role_name(), pg_import_system_collations(), pg_prewarm(), pg_sequence_last_value(), pg_sequence_parameters(), pg_signal_backend(), pg_stat_get_activity(), pg_stat_get_backend_activity(), pg_stat_get_backend_activity_start(), pg_stat_get_backend_client_addr(), pg_stat_get_backend_client_port(), pg_stat_get_backend_start(), pg_stat_get_backend_wait_event(), pg_stat_get_backend_wait_event_type(), pg_stat_get_backend_xact_start(), pg_stat_get_progress_info(), pg_stat_get_wal_receiver(), pg_stat_statements_internal(), pgrowlocks(), pgss_store(), pgstat_get_backend_current_activity(), pltcl_fetch_interp(), postgresBeginDirectModify(), postgresBeginForeignModify(), postgresBeginForeignScan(), postgresGetForeignRelSize(), postgresImportForeignSchema(), PrepareTempTablespaces(), PrepareTransaction(), PublicationAddTables(), RangeVarCallbackForAlterRelation(), RangeVarCallbackForDropRelation(), RangeVarCallbackForPolicy(), RangeVarCallbackForReindexIndex(), RangeVarCallbackForRenameRule(), RangeVarCallbackForRenameTrigger(), RangeVarCallbackOwnsRelation(), RangeVarCallbackOwnsTable(), RangeVarGetAndCheckCreationNamespace(), ReassignOwnedObjects(), recomputeNamespacePath(), ReindexMultipleTables(), RemoveObjects(), RemoveRoleFromObjectPolicy(), renameatt_check(), RenameDatabase(), RenameSchema(), RenameTableSpace(), RenameType(), RevalidateCachedQuery(), RI_Initial_Check(), ri_ReportViolation(), select_perl_context(), set_foreign_rel_properties(), superuser(), timetravel(), transformTableLikeClause(), truncate_check_rel(), user_mapping_ddl_aclcheck(), vacuum_rel(), ValidateJoinEstimator(), and ValidateRestrictionEstimator().

285 {
287  return CurrentUserId;
288 }
#define AssertState(condition)
Definition: c.h:673
#define OidIsValid(objectId)
Definition: c.h:576
static Oid CurrentUserId
Definition: miscinit.c:159

◆ GetUserIdAndContext()

void GetUserIdAndContext ( Oid userid,
bool sec_def_context 
)

Definition at line 438 of file miscinit.c.

References CurrentUserId, and InLocalUserIdChange().

439 {
440  *userid = CurrentUserId;
441  *sec_def_context = InLocalUserIdChange();
442 }
bool InLocalUserIdChange(void)
Definition: miscinit.c:407
static Oid CurrentUserId
Definition: miscinit.c:159

◆ GetUserIdAndSecContext()

void GetUserIdAndSecContext ( Oid userid,
int *  sec_context 
)

◆ GetUserNameFromId()

char* GetUserNameFromId ( Oid  roleid,
bool  noerr 
)

Definition at line 692 of file miscinit.c.

References AUTHOID, ereport, errcode(), errmsg(), ERROR, GETSTRUCT, HeapTupleIsValid, NameStr, ObjectIdGetDatum, pstrdup(), ReleaseSysCache(), and SearchSysCache1().

Referenced by check_is_member_of_role(), current_user(), getObjectDescription(), getObjectIdentityParts(), insert_username(), regroleout(), RemoveRoleFromObjectPolicy(), session_user(), and timetravel().

693 {
694  HeapTuple tuple;
695  char *result;
696 
697  tuple = SearchSysCache1(AUTHOID, ObjectIdGetDatum(roleid));
698  if (!HeapTupleIsValid(tuple))
699  {
700  if (!noerr)
701  ereport(ERROR,
702  (errcode(ERRCODE_UNDEFINED_OBJECT),
703  errmsg("invalid role OID: %u", roleid)));
704  result = NULL;
705  }
706  else
707  {
708  result = pstrdup(NameStr(((Form_pg_authid) GETSTRUCT(tuple))->rolname));
709  ReleaseSysCache(tuple);
710  }
711  return result;
712 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:661
char * pstrdup(const char *in)
Definition: mcxt.c:1076
int errcode(int sqlerrcode)
Definition: elog.c:575
FormData_pg_authid * Form_pg_authid
Definition: pg_authid.h:72
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1112
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1160
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define NameStr(name)
Definition: c.h:547

◆ has_rolreplication()

bool has_rolreplication ( Oid  roleid)

Definition at line 465 of file miscinit.c.

References AUTHOID, GETSTRUCT, HeapTupleIsValid, ObjectIdGetDatum, ReleaseSysCache(), and SearchSysCache1().

Referenced by check_permissions(), and InitPostgres().

466 {
467  bool result = false;
468  HeapTuple utup;
469 
470  utup = SearchSysCache1(AUTHOID, ObjectIdGetDatum(roleid));
471  if (HeapTupleIsValid(utup))
472  {
473  result = ((Form_pg_authid) GETSTRUCT(utup))->rolreplication;
474  ReleaseSysCache(utup);
475  }
476  return result;
477 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:661
FormData_pg_authid * Form_pg_authid
Definition: pg_authid.h:72
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1112
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1160
#define HeapTupleIsValid(tuple)
Definition: htup.h:77

◆ InitializeMaxBackends()

void InitializeMaxBackends ( void  )

Definition at line 496 of file postinit.c.

References Assert, autovacuum_max_workers, elog, ERROR, MAX_BACKENDS, max_worker_processes, MaxBackends, and MaxConnections.

Referenced by AuxiliaryProcessMain(), PostgresMain(), and PostmasterMain().

497 {
498  Assert(MaxBackends == 0);
499 
500  /* the extra unit accounts for the autovacuum launcher */
503 
504  /* internal error because the values were all checked previously */
506  elog(ERROR, "too many backends configured");
507 }
#define ERROR
Definition: elog.h:43
#define MAX_BACKENDS
Definition: postmaster.h:75
int MaxBackends
Definition: globals.c:126
int MaxConnections
Definition: globals.c:123
int autovacuum_max_workers
Definition: autovacuum.c:115
#define Assert(condition)
Definition: c.h:670
int max_worker_processes
Definition: globals.c:124
#define elog
Definition: elog.h:219

◆ InitializeSessionUserId()

void InitializeSessionUserId ( const char *  rolename,
Oid  useroid 
)

Definition at line 483 of file miscinit.c.

References AssertState, AuthenticatedUserId, AuthenticatedUserIsSuperuser, AUTHNAME, AUTHOID, CountUserBackends(), ereport, errcode(), errmsg(), FATAL, GETSTRUCT, HeapTupleGetOid, HeapTupleIsValid, IsBootstrapProcessingMode, IsUnderPostmaster, MyProc, NameStr, ObjectIdGetDatum, OidIsValid, PGC_BACKEND, PGC_INTERNAL, PGC_S_OVERRIDE, PointerGetDatum, ReleaseSysCache(), PGPROC::roleId, SearchSysCache1(), SetConfigOption(), and SetSessionUserId().

Referenced by InitPostgres().

484 {
485  HeapTuple roleTup;
486  Form_pg_authid rform;
487  char *rname;
488 
489  /*
490  * Don't do scans if we're bootstrapping, none of the system catalogs
491  * exist yet, and they should be owned by postgres anyway.
492  */
494 
495  /* call only once */
497 
498  if (rolename != NULL)
499  {
500  roleTup = SearchSysCache1(AUTHNAME, PointerGetDatum(rolename));
501  if (!HeapTupleIsValid(roleTup))
502  ereport(FATAL,
503  (errcode(ERRCODE_INVALID_AUTHORIZATION_SPECIFICATION),
504  errmsg("role \"%s\" does not exist", rolename)));
505  }
506  else
507  {
508  roleTup = SearchSysCache1(AUTHOID, ObjectIdGetDatum(roleid));
509  if (!HeapTupleIsValid(roleTup))
510  ereport(FATAL,
511  (errcode(ERRCODE_INVALID_AUTHORIZATION_SPECIFICATION),
512  errmsg("role with OID %u does not exist", roleid)));
513  }
514 
515  rform = (Form_pg_authid) GETSTRUCT(roleTup);
516  roleid = HeapTupleGetOid(roleTup);
517  rname = NameStr(rform->rolname);
518 
519  AuthenticatedUserId = roleid;
520  AuthenticatedUserIsSuperuser = rform->rolsuper;
521 
522  /* This sets OuterUserId/CurrentUserId too */
524 
525  /* Also mark our PGPROC entry with the authenticated user id */
526  /* (We assume this is an atomic store so no lock is needed) */
527  MyProc->roleId = roleid;
528 
529  /*
530  * These next checks are not enforced when in standalone mode, so that
531  * there is a way to recover from sillinesses like "UPDATE pg_authid SET
532  * rolcanlogin = false;".
533  */
534  if (IsUnderPostmaster)
535  {
536  /*
537  * Is role allowed to login at all?
538  */
539  if (!rform->rolcanlogin)
540  ereport(FATAL,
541  (errcode(ERRCODE_INVALID_AUTHORIZATION_SPECIFICATION),
542  errmsg("role \"%s\" is not permitted to log in",
543  rname)));
544 
545  /*
546  * Check connection limit for this role.
547  *
548  * There is a race condition here --- we create our PGPROC before
549  * checking for other PGPROCs. If two backends did this at about the
550  * same time, they might both think they were over the limit, while
551  * ideally one should succeed and one fail. Getting that to work
552  * exactly seems more trouble than it is worth, however; instead we
553  * just document that the connection limit is approximate.
554  */
555  if (rform->rolconnlimit >= 0 &&
557  CountUserBackends(roleid) > rform->rolconnlimit)
558  ereport(FATAL,
559  (errcode(ERRCODE_TOO_MANY_CONNECTIONS),
560  errmsg("too many connections for role \"%s\"",
561  rname)));
562  }
563 
564  /* Record username and superuser status as GUC settings too */
565  SetConfigOption("session_authorization", rname,
567  SetConfigOption("is_superuser",
568  AuthenticatedUserIsSuperuser ? "on" : "off",
570 
571  ReleaseSysCache(roleTup);
572 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:661
#define AssertState(condition)
Definition: c.h:673
PGPROC * MyProc
Definition: proc.c:67
#define PointerGetDatum(X)
Definition: postgres.h:562
Oid roleId
Definition: proc.h:115
int errcode(int sqlerrcode)
Definition: elog.c:575
#define OidIsValid(objectId)
Definition: c.h:576
FormData_pg_authid * Form_pg_authid
Definition: pg_authid.h:72
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define FATAL
Definition: elog.h:52
void SetConfigOption(const char *name, const char *value, GucContext context, GucSource source)
Definition: guc.c:6700
bool IsUnderPostmaster
Definition: globals.c:101
static bool AuthenticatedUserIsSuperuser
Definition: miscinit.c:162
#define ereport(elevel, rest)
Definition: elog.h:122
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1112
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1160
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
int CountUserBackends(Oid roleid)
Definition: procarray.c:2840
#define IsBootstrapProcessingMode()
Definition: miscadmin.h:367
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define NameStr(name)
Definition: c.h:547
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:700
static void SetSessionUserId(Oid userid, bool is_superuser)
Definition: miscinit.c:326
static Oid AuthenticatedUserId
Definition: miscinit.c:156

◆ InitializeSessionUserIdStandalone()

void InitializeSessionUserIdStandalone ( void  )

Definition at line 579 of file miscinit.c.

References AssertState, AuthenticatedUserId, AuthenticatedUserIsSuperuser, BOOTSTRAP_SUPERUSERID, IsAutoVacuumWorkerProcess(), IsBackgroundWorker, IsUnderPostmaster, OidIsValid, and SetSessionUserId().

Referenced by InitPostgres().

580 {
581  /*
582  * This function should only be called in single-user mode, in autovacuum
583  * workers, and in background workers.
584  */
586 
587  /* call only once */
589 
592 
594 }
#define AssertState(condition)
Definition: c.h:673
#define OidIsValid(objectId)
Definition: c.h:576
bool IsBackgroundWorker
Definition: globals.c:103
bool IsUnderPostmaster
Definition: globals.c:101
static bool AuthenticatedUserIsSuperuser
Definition: miscinit.c:162
bool IsAutoVacuumWorkerProcess(void)
Definition: autovacuum.c:3256
#define BOOTSTRAP_SUPERUSERID
Definition: pg_authid.h:102
static void SetSessionUserId(Oid userid, bool is_superuser)
Definition: miscinit.c:326
static Oid AuthenticatedUserId
Definition: miscinit.c:156

◆ InitPostgres()

void InitPostgres ( const char *  in_dbname,
Oid  dboid,
const char *  username,
Oid  useroid,
char *  out_dbname 
)

Definition at line 559 of file postinit.c.

References am_db_walsender, am_walsender, Assert, before_shmem_exit(), CAC_WAITBACKUP, Port::canAcceptConnections, CheckDeadLockAlert(), CheckMyDatabase(), CommitTransactionCommand(), PGPROC::databaseId, DatabaseRelationId, dbname, DEADLOCK_TIMEOUT, DEBUG3, DEFAULTTABLESPACE_OID, elog, EnablePortalManager(), ereport, errcode(), errcode_for_file_access(), errdetail(), errhint(), errmsg(), FATAL, GetDatabasePath(), GetDatabaseTuple(), GetDatabaseTupleByOid(), GetSessionUserId(), GETSTRUCT, GetTransactionSnapshot(), GetUserId(), has_rolreplication(), HaveNFreeProcs(), HeapTupleGetOid, HeapTupleIsValid, IDLE_IN_TRANSACTION_SESSION_TIMEOUT, IdleInTransactionSessionTimeoutHandler(), InitBufferPoolBackend(), InitCatalogCache(), initialize_acl(), InitializeClientEncoding(), InitializeSearchPath(), InitializeSession(), InitializeSessionUserId(), InitializeSessionUserIdStandalone(), InitPlanCache(), InitProcessPhase2(), InvalidateCatalogSnapshot(), InvalidBackendId, IsAutoVacuumLauncherProcess(), IsAutoVacuumWorkerProcess(), IsBackgroundWorker, IsBinaryUpgrade, IsBootstrapProcessingMode, IsUnderPostmaster, LOCK_TIMEOUT, LockSharedObject(), LockTimeoutHandler(), MaxBackends, MyBackendId, MyDatabaseId, MyDatabaseTableSpace, MyProc, MyProcPort, NAMEDATALEN, NameStr, OidIsValid, on_shmem_exit(), PerformAuthentication(), pg_usleep(), pgstat_bestart(), pgstat_initialize(), PostAuthDelay, process_settings(), process_startup_options(), ProcSignalInit(), RecoveryInProgress(), RegisterTimeout(), RelationCacheInitialize(), RelationCacheInitializePhase2(), RelationCacheInitializePhase3(), ReservedBackends, RowExclusiveLock, SetCurrentStatementStartTimestamp(), SetDatabasePath(), SharedInvalBackendInit(), ShutdownPostgres(), ShutdownXLOG(), StartTransactionCommand(), StartupXLOG(), STATEMENT_TIMEOUT, StatementTimeoutHandler(), strlcpy(), superuser(), TemplateDbOid, ThereIsAtLeastOneRole(), ValidatePgVersion(), WARNING, XACT_READ_COMMITTED, and XactIsoLevel.

Referenced by AutoVacLauncherMain(), AutoVacWorkerMain(), BackgroundWorkerInitializeConnection(), BackgroundWorkerInitializeConnectionByOid(), BootstrapModeMain(), and PostgresMain().

561 {
562  bool bootstrap = IsBootstrapProcessingMode();
563  bool am_superuser;
564  char *fullpath;
565  char dbname[NAMEDATALEN];
566 
567  elog(DEBUG3, "InitPostgres");
568 
569  /*
570  * Add my PGPROC struct to the ProcArray.
571  *
572  * Once I have done this, I am visible to other backends!
573  */
575 
576  /*
577  * Initialize my entry in the shared-invalidation manager's array of
578  * per-backend data.
579  *
580  * Sets up MyBackendId, a unique backend identifier.
581  */
583 
584  SharedInvalBackendInit(false);
585 
586  if (MyBackendId > MaxBackends || MyBackendId <= 0)
587  elog(FATAL, "bad backend ID: %d", MyBackendId);
588 
589  /* Now that we have a BackendId, we can participate in ProcSignal */
591 
592  /*
593  * Also set up timeout handlers needed for backend operation. We need
594  * these in every case except bootstrap.
595  */
596  if (!bootstrap)
597  {
603  }
604 
605  /*
606  * bufmgr needs another initialization call too
607  */
609 
610  /*
611  * Initialize local process's access to XLOG.
612  */
613  if (IsUnderPostmaster)
614  {
615  /*
616  * The postmaster already started the XLOG machinery, but we need to
617  * call InitXLOGAccess(), if the system isn't in hot-standby mode.
618  * This is handled by calling RecoveryInProgress and ignoring the
619  * result.
620  */
621  (void) RecoveryInProgress();
622  }
623  else
624  {
625  /*
626  * We are either a bootstrap process or a standalone backend. Either
627  * way, start up the XLOG machinery, and register to have it closed
628  * down at exit.
629  */
630  StartupXLOG();
632  }
633 
634  /*
635  * Initialize the relation cache and the system catalog caches. Note that
636  * no catalog access happens here; we only set up the hashtable structure.
637  * We must do this before starting a transaction because transaction abort
638  * would try to touch these hashtables.
639  */
642  InitPlanCache();
643 
644  /* Initialize portal manager */
646 
647  /* Initialize stats collection --- must happen before first xact */
648  if (!bootstrap)
650 
651  /*
652  * Load relcache entries for the shared system catalogs. This must create
653  * at least entries for pg_database and catalogs used for authentication.
654  */
656 
657  /*
658  * Set up process-exit callback to do pre-shutdown cleanup. This is the
659  * first before_shmem_exit callback we register; thus, this will be the
660  * last thing we do before low-level modules like the buffer manager begin
661  * to close down. We need to have this in place before we begin our first
662  * transaction --- if we fail during the initialization transaction, as is
663  * entirely possible, we need the AbortTransaction call to clean up.
664  */
666 
667  /* The autovacuum launcher is done here */
669  {
670  /* report this backend in the PgBackendStatus array */
671  pgstat_bestart();
672 
673  return;
674  }
675 
676  /*
677  * Start a new transaction here before first access to db, and get a
678  * snapshot. We don't have a use for the snapshot itself, but we're
679  * interested in the secondary effect that it sets RecentGlobalXmin. (This
680  * is critical for anything that reads heap pages, because HOT may decide
681  * to prune them even if the process doesn't attempt to modify any
682  * tuples.)
683  */
684  if (!bootstrap)
685  {
686  /* statement_timestamp must be set for timeouts to work correctly */
689 
690  /*
691  * transaction_isolation will have been set to the default by the
692  * above. If the default is "serializable", and we are in hot
693  * standby, we will fail if we don't change it to something lower.
694  * Fortunately, "read committed" is plenty good enough.
695  */
697 
698  (void) GetTransactionSnapshot();
699  }
700 
701  /*
702  * Perform client authentication if necessary, then figure out our
703  * postgres user ID, and see if we are a superuser.
704  *
705  * In standalone mode and in autovacuum worker processes, we use a fixed
706  * ID, otherwise we figure it out from the authenticated user name.
707  */
708  if (bootstrap || IsAutoVacuumWorkerProcess())
709  {
711  am_superuser = true;
712  }
713  else if (!IsUnderPostmaster)
714  {
716  am_superuser = true;
717  if (!ThereIsAtLeastOneRole())
719  (errcode(ERRCODE_UNDEFINED_OBJECT),
720  errmsg("no roles are defined in this database system"),
721  errhint("You should immediately run CREATE USER \"%s\" SUPERUSER;.",
722  username != NULL ? username : "postgres")));
723  }
724  else if (IsBackgroundWorker)
725  {
726  if (username == NULL && !OidIsValid(useroid))
727  {
729  am_superuser = true;
730  }
731  else
732  {
734  am_superuser = superuser();
735  }
736  }
737  else
738  {
739  /* normal multiuser case */
740  Assert(MyProcPort != NULL);
743  am_superuser = superuser();
744  }
745 
746  /*
747  * If we're trying to shut down, only superusers can connect, and new
748  * replication connections are not allowed.
749  */
750  if ((!am_superuser || am_walsender) &&
751  MyProcPort != NULL &&
753  {
754  if (am_walsender)
755  ereport(FATAL,
756  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
757  errmsg("new replication connections are not allowed during database shutdown")));
758  else
759  ereport(FATAL,
760  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
761  errmsg("must be superuser to connect during database shutdown")));
762  }
763 
764  /*
765  * Binary upgrades only allowed super-user connections
766  */
767  if (IsBinaryUpgrade && !am_superuser)
768  {
769  ereport(FATAL,
770  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
771  errmsg("must be superuser to connect in binary upgrade mode")));
772  }
773 
774  /*
775  * The last few connections slots are reserved for superusers. Although
776  * replication connections currently require superuser privileges, we
777  * don't allow them to consume the reserved slots, which are intended for
778  * interactive use.
779  */
780  if ((!am_superuser || am_walsender) &&
781  ReservedBackends > 0 &&
783  ereport(FATAL,
784  (errcode(ERRCODE_TOO_MANY_CONNECTIONS),
785  errmsg("remaining connection slots are reserved for non-replication superuser connections")));
786 
787  /* Check replication permissions needed for walsender processes. */
788  if (am_walsender)
789  {
790  Assert(!bootstrap);
791 
792  if (!superuser() && !has_rolreplication(GetUserId()))
793  ereport(FATAL,
794  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
795  errmsg("must be superuser or replication role to start walsender")));
796  }
797 
798  /*
799  * If this is a plain walsender only supporting physical replication, we
800  * don't want to connect to any particular database. Just finish the
801  * backend startup by processing any options from the startup packet, and
802  * we're done.
803  */
805  {
806  /* process any options passed in the startup packet */
807  if (MyProcPort != NULL)
808  process_startup_options(MyProcPort, am_superuser);
809 
810  /* Apply PostAuthDelay as soon as we've read all options */
811  if (PostAuthDelay > 0)
812  pg_usleep(PostAuthDelay * 1000000L);
813 
814  /* initialize client encoding */
816 
817  /* report this backend in the PgBackendStatus array */
818  pgstat_bestart();
819 
820  /* close the transaction we started above */
822 
823  return;
824  }
825 
826  /*
827  * Set up the global variables holding database id and default tablespace.
828  * But note we won't actually try to touch the database just yet.
829  *
830  * We take a shortcut in the bootstrap case, otherwise we have to look up
831  * the db's entry in pg_database.
832  */
833  if (bootstrap)
834  {
837  }
838  else if (in_dbname != NULL)
839  {
840  HeapTuple tuple;
841  Form_pg_database dbform;
842 
843  tuple = GetDatabaseTuple(in_dbname);
844  if (!HeapTupleIsValid(tuple))
845  ereport(FATAL,
846  (errcode(ERRCODE_UNDEFINED_DATABASE),
847  errmsg("database \"%s\" does not exist", in_dbname)));
848  dbform = (Form_pg_database) GETSTRUCT(tuple);
849  MyDatabaseId = HeapTupleGetOid(tuple);
850  MyDatabaseTableSpace = dbform->dattablespace;
851  /* take database name from the caller, just for paranoia */
852  strlcpy(dbname, in_dbname, sizeof(dbname));
853  }
854  else if (OidIsValid(dboid))
855  {
856  /* caller specified database by OID */
857  HeapTuple tuple;
858  Form_pg_database dbform;
859 
860  tuple = GetDatabaseTupleByOid(dboid);
861  if (!HeapTupleIsValid(tuple))
862  ereport(FATAL,
863  (errcode(ERRCODE_UNDEFINED_DATABASE),
864  errmsg("database %u does not exist", dboid)));
865  dbform = (Form_pg_database) GETSTRUCT(tuple);
866  MyDatabaseId = HeapTupleGetOid(tuple);
867  MyDatabaseTableSpace = dbform->dattablespace;
868  Assert(MyDatabaseId == dboid);
869  strlcpy(dbname, NameStr(dbform->datname), sizeof(dbname));
870  /* pass the database name back to the caller */
871  if (out_dbname)
872  strcpy(out_dbname, dbname);
873  }
874  else
875  {
876  /*
877  * If this is a background worker not bound to any particular
878  * database, we're done now. Everything that follows only makes sense
879  * if we are bound to a specific database. We do need to close the
880  * transaction we started before returning.
881  */
882  if (!bootstrap)
883  {
884  pgstat_bestart();
886  }
887  return;
888  }
889 
890  /*
891  * Now, take a writer's lock on the database we are trying to connect to.
892  * If there is a concurrently running DROP DATABASE on that database, this
893  * will block us until it finishes (and has committed its update of
894  * pg_database).
895  *
896  * Note that the lock is not held long, only until the end of this startup
897  * transaction. This is OK since we will advertise our use of the
898  * database in the ProcArray before dropping the lock (in fact, that's the
899  * next thing to do). Anyone trying a DROP DATABASE after this point will
900  * see us in the array once they have the lock. Ordering is important for
901  * this because we don't want to advertise ourselves as being in this
902  * database until we have the lock; otherwise we create what amounts to a
903  * deadlock with CountOtherDBBackends().
904  *
905  * Note: use of RowExclusiveLock here is reasonable because we envision
906  * our session as being a concurrent writer of the database. If we had a
907  * way of declaring a session as being guaranteed-read-only, we could use
908  * AccessShareLock for such sessions and thereby not conflict against
909  * CREATE DATABASE.
910  */
911  if (!bootstrap)
914 
915  /*
916  * Now we can mark our PGPROC entry with the database ID.
917  *
918  * We assume this is an atomic store so no lock is needed; though actually
919  * things would work fine even if it weren't atomic. Anyone searching the
920  * ProcArray for this database's ID should hold the database lock, so they
921  * would not be executing concurrently with this store. A process looking
922  * for another database's ID could in theory see a chance match if it read
923  * a partially-updated databaseId value; but as long as all such searches
924  * wait and retry, as in CountOtherDBBackends(), they will certainly see
925  * the correct value on their next try.
926  */
928 
929  /*
930  * We established a catalog snapshot while reading pg_authid and/or
931  * pg_database; but until we have set up MyDatabaseId, we won't react to
932  * incoming sinval messages for unshared catalogs, so we won't realize it
933  * if the snapshot has been invalidated. Assume it's no good anymore.
934  */
936 
937  /*
938  * Recheck pg_database to make sure the target database hasn't gone away.
939  * If there was a concurrent DROP DATABASE, this ensures we will die
940  * cleanly without creating a mess.
941  */
942  if (!bootstrap)
943  {
944  HeapTuple tuple;
945 
946  tuple = GetDatabaseTuple(dbname);
947  if (!HeapTupleIsValid(tuple) ||
948  MyDatabaseId != HeapTupleGetOid(tuple) ||
949  MyDatabaseTableSpace != ((Form_pg_database) GETSTRUCT(tuple))->dattablespace)
950  ereport(FATAL,
951  (errcode(ERRCODE_UNDEFINED_DATABASE),
952  errmsg("database \"%s\" does not exist", dbname),
953  errdetail("It seems to have just been dropped or renamed.")));
954  }
955 
956  /*
957  * Now we should be able to access the database directory safely. Verify
958  * it's there and looks reasonable.
959  */
961 
962  if (!bootstrap)
963  {
964  if (access(fullpath, F_OK) == -1)
965  {
966  if (errno == ENOENT)
967  ereport(FATAL,
968  (errcode(ERRCODE_UNDEFINED_DATABASE),
969  errmsg("database \"%s\" does not exist",
970  dbname),
971  errdetail("The database subdirectory \"%s\" is missing.",
972  fullpath)));
973  else
974  ereport(FATAL,
976  errmsg("could not access directory \"%s\": %m",
977  fullpath)));
978  }
979 
980  ValidatePgVersion(fullpath);
981  }
982 
983  SetDatabasePath(fullpath);
984 
985  /*
986  * It's now possible to do real access to the system catalogs.
987  *
988  * Load relcache entries for the system catalogs. This must create at
989  * least the minimum set of "nailed-in" cache entries.
990  */
992 
993  /* set up ACL framework (so CheckMyDatabase can check permissions) */
994  initialize_acl();
995 
996  /*
997  * Re-read the pg_database row for our database, check permissions and set
998  * up database-specific GUC settings. We can't do this until all the
999  * database-access infrastructure is up. (Also, it wants to know if the
1000  * user is a superuser, so the above stuff has to happen first.)
1001  */
1002  if (!bootstrap)
1003  CheckMyDatabase(dbname, am_superuser);
1004 
1005  /*
1006  * Now process any command-line switches and any additional GUC variable
1007  * settings passed in the startup packet. We couldn't do this before
1008  * because we didn't know if client is a superuser.
1009  */
1010  if (MyProcPort != NULL)
1011  process_startup_options(MyProcPort, am_superuser);
1012 
1013  /* Process pg_db_role_setting options */
1015 
1016  /* Apply PostAuthDelay as soon as we've read all options */
1017  if (PostAuthDelay > 0)
1018  pg_usleep(PostAuthDelay * 1000000L);
1019 
1020  /*
1021  * Initialize various default states that can't be set up until we've
1022  * selected the active user and gotten the right GUC settings.
1023  */
1024 
1025  /* set default namespace search path */
1027 
1028  /* initialize client encoding */
1030 
1031  /* Initialize this backend's session state. */
1033 
1034  /* report this backend in the PgBackendStatus array */
1035  if (!bootstrap)
1036  pgstat_bestart();
1037 
1038  /* close the transaction we started above */
1039  if (!bootstrap)
1041 }
int errhint(const char *fmt,...)
Definition: elog.c:987
BackendId MyBackendId
Definition: globals.c:73
#define GETSTRUCT(TUP)
Definition: htup_details.h:661
struct Port * MyProcPort
Definition: globals.c:41
CAC_state canAcceptConnections
Definition: libpq-be.h:129
void SharedInvalBackendInit(bool sendOnly)
Definition: sinvaladt.c:258
#define DEBUG3
Definition: elog.h:23
Oid GetUserId(void)
Definition: miscinit.c:284
FormData_pg_database * Form_pg_database
Definition: pg_database.h:57
PGPROC * MyProc
Definition: proc.c:67
static HeapTuple GetDatabaseTuple(const char *dbname)
Definition: postinit.c:95
#define DatabaseRelationId
Definition: pg_database.h:29
void CommitTransactionCommand(void)
Definition: xact.c:2744
void InitializeSession(void)
Definition: session.c:54
void ValidatePgVersion(const char *path)
Definition: miscinit.c:1358
void RelationCacheInitializePhase2(void)
Definition: relcache.c:3579
static void PerformAuthentication(Port *port)
Definition: postinit.c:184
static void LockTimeoutHandler(void)
Definition: postinit.c:1186
int errcode(int sqlerrcode)
Definition: elog.c:575
bool superuser(void)
Definition: superuser.c:47
static void CheckMyDatabase(const char *name, bool am_superuser)
Definition: postinit.c:287
void initialize_acl(void)
Definition: acl.c:4614
bool RecoveryInProgress(void)
Definition: xlog.c:7922
Snapshot GetTransactionSnapshot(void)
Definition: snapmgr.c:304
#define OidIsValid(objectId)
Definition: c.h:576
Oid GetSessionUserId(void)
Definition: miscinit.c:318
bool HaveNFreeProcs(int n)
Definition: proc.c:646
bool IsBinaryUpgrade
Definition: globals.c:102
Oid MyDatabaseTableSpace
Definition: globals.c:79
bool IsBackgroundWorker
Definition: globals.c:103
void RelationCacheInitializePhase3(void)
Definition: relcache.c:3638
#define NAMEDATALEN
bool am_walsender
Definition: walsender.c:114
void pg_usleep(long microsec)
Definition: signal.c:53
int ReservedBackends
Definition: postmaster.c:212
#define FATAL
Definition: elog.h:52
void InitializeSearchPath(void)
Definition: namespace.c:4110
int MaxBackends
Definition: globals.c:126
#define TemplateDbOid
Definition: pg_database.h:80
void on_shmem_exit(pg_on_exit_callback function, Datum arg)
Definition: ipc.c:348
bool IsUnderPostmaster
Definition: globals.c:101
#define RowExclusiveLock
Definition: lockdefs.h:38
#define DEFAULTTABLESPACE_OID
Definition: pg_tablespace.h:63
int errdetail(const char *fmt,...)
Definition: elog.c:873
int errcode_for_file_access(void)
Definition: elog.c:598
static void IdleInTransactionSessionTimeoutHandler(void)
Definition: postinit.c:1196
void before_shmem_exit(pg_on_exit_callback function, Datum arg)
Definition: ipc.c:320
Oid databaseId
Definition: proc.h:114
void pgstat_initialize(void)
Definition: pgstat.c:2745
static bool ThereIsAtLeastOneRole(void)
Definition: postinit.c:1207
void StartupXLOG(void)
Definition: xlog.c:6257
bool IsAutoVacuumWorkerProcess(void)
Definition: autovacuum.c:3256
#define ereport(elevel, rest)
Definition: elog.h:122
void InvalidateCatalogSnapshot(void)
Definition: snapmgr.c:510
char * GetDatabasePath(Oid dbNode, Oid spcNode)
Definition: relpath.c:108
void SetDatabasePath(const char *path)
Definition: miscinit.c:83
#define WARNING
Definition: elog.h:40
void ShutdownXLOG(int code, Datum arg)
Definition: xlog.c:8353
static HeapTuple GetDatabaseTupleByOid(Oid dboid)
Definition: postinit.c:138
#define InvalidBackendId
Definition: backendid.h:23
bool am_db_walsender
Definition: walsender.c:117
Oid MyDatabaseId
Definition: globals.c:77
int PostAuthDelay
Definition: postgres.c:99
void LockSharedObject(Oid classid, Oid objid, uint16 objsubid, LOCKMODE lockmode)
Definition: lmgr.c:871
void EnablePortalManager(void)
Definition: portalmem.c:103
static void ShutdownPostgres(int code, Datum arg)
Definition: postinit.c:1147
static char * username
Definition: initdb.c:132
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:45
TimeoutId RegisterTimeout(TimeoutId id, timeout_handler_proc handler)
Definition: timeout.c:373
bool IsAutoVacuumLauncherProcess(void)
Definition: autovacuum.c:3250
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define Assert(condition)
Definition: c.h:670
void InitializeSessionUserIdStandalone(void)
Definition: miscinit.c:579
void StartTransactionCommand(void)
Definition: xact.c:2673
#define XACT_READ_COMMITTED
Definition: xact.h:29
void InitializeSessionUserId(const char *rolename, Oid roleid)
Definition: miscinit.c:483
char * dbname
Definition: streamutil.c:42
static void process_startup_options(Port *port, bool am_superuser)
Definition: postinit.c:1048
int XactIsoLevel
Definition: xact.c:74
bool has_rolreplication(Oid roleid)
Definition: miscinit.c:465
void InitializeClientEncoding(void)
Definition: mbutils.c:282
void InitPlanCache(void)
Definition: plancache.c:116
void InitProcessPhase2(void)
Definition: proc.c:456
#define IsBootstrapProcessingMode()
Definition: miscadmin.h:367
void RelationCacheInitialize(void)
Definition: relcache.c:3542
void ProcSignalInit(int pss_idx)
Definition: procsignal.c:105
void InitCatalogCache(void)
Definition: syscache.c:998
static void StatementTimeoutHandler(void)
Definition: postinit.c:1164
void SetCurrentStatementStartTimestamp(void)
Definition: xact.c:733
int errmsg(const char *fmt,...)
Definition: elog.c:797
void pgstat_bestart(void)
Definition: pgstat.c:2785
#define NameStr(name)
Definition: c.h:547
static void process_settings(Oid databaseid, Oid roleid)
Definition: postinit.c:1113
void CheckDeadLockAlert(void)
Definition: proc.c:1752
void InitBufferPoolBackend(void)
Definition: bufmgr.c:2461
#define elog
Definition: elog.h:219
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:700

◆ InitPostmasterChild()

void InitPostmasterChild ( void  )

Definition at line 176 of file miscinit.c.

References elog, FATAL, InitializeLatchSupport(), InitLatch(), IsUnderPostmaster, LocalLatchData, MyLatch, MyProcPid, MyStartTime, and on_exit_reset().

Referenced by BackendRun(), BackendStartup(), do_start_bgworker(), pgarch_start(), pgstat_start(), StartAutoVacLauncher(), StartAutoVacWorker(), StartChildProcess(), and SysLogger_Start().

177 {
178  IsUnderPostmaster = true; /* we are a postmaster subprocess now */
179 
180  MyProcPid = getpid(); /* reset MyProcPid */
181 
182  MyStartTime = time(NULL); /* set our start time in case we call elog */
183 
184  /*
185  * make sure stderr is in binary mode before anything can possibly be
186  * written to it, in case it's actually the syslogger pipe, so the pipe
187  * chunking protocol isn't disturbed. Non-logpipe data gets translated on
188  * redirection (e.g. via pg_ctl -l) anyway.
189  */
190 #ifdef WIN32
191  _setmode(fileno(stderr), _O_BINARY);
192 #endif
193 
194  /* We don't want the postmaster's proc_exit() handlers */
195  on_exit_reset();
196 
197  /* Initialize process-local latch support */
201 
202  /*
203  * If possible, make this process a group leader, so that the postmaster
204  * can signal any child processes too. Not all processes will have
205  * children, but for consistency we make all postmaster child processes do
206  * this.
207  */
208 #ifdef HAVE_SETSID
209  if (setsid() < 0)
210  elog(FATAL, "setsid() failed: %m");
211 #endif
212 }
int MyProcPid
Definition: globals.c:39
pg_time_t MyStartTime
Definition: globals.c:40
void on_exit_reset(void)
Definition: ipc.c:396
static Latch LocalLatchData
Definition: miscinit.c:62
#define FATAL
Definition: elog.h:52
bool IsUnderPostmaster
Definition: globals.c:101
void InitializeLatchSupport(void)
Definition: latch.c:147
void InitLatch(volatile Latch *latch)
Definition: latch.c:220
struct Latch * MyLatch
Definition: globals.c:52
#define elog
Definition: elog.h:219

◆ InitStandaloneProcess()

void InitStandaloneProcess ( const char *  argv0)

Definition at line 220 of file miscinit.c.

References Assert, elog, FATAL, find_my_exec(), get_pkglib_path(), InitializeLatchSupport(), InitLatch(), IsPostmasterEnvironment, LocalLatchData, my_exec_path, MyLatch, MyProcPid, MyStartTime, and pkglib_path.

Referenced by AuxiliaryProcessMain(), and PostgresMain().

221 {
223 
224  MyProcPid = getpid(); /* reset MyProcPid */
225 
226  MyStartTime = time(NULL); /* set our start time in case we call elog */
227 
228  /* Initialize process-local latch support */
232 
233  /* Compute paths, no postmaster to inherit from */
234  if (my_exec_path[0] == '\0')
235  {
236  if (find_my_exec(argv0, my_exec_path) < 0)
237  elog(FATAL, "%s: could not locate my own executable path",
238  argv0);
239  }
240 
241  if (pkglib_path[0] == '\0')
243 }
bool IsPostmasterEnvironment
Definition: globals.c:100
static char * argv0
Definition: pg_ctl.c:93
int MyProcPid
Definition: globals.c:39
pg_time_t MyStartTime
Definition: globals.c:40
void get_pkglib_path(const char *my_exec_path, char *ret_path)
Definition: path.c:758
static Latch LocalLatchData
Definition: miscinit.c:62
#define FATAL
Definition: elog.h:52
int find_my_exec(const char *argv0, char *retpath)
Definition: exec.c:119
char my_exec_path[MAXPGPATH]
Definition: globals.c:64
void InitializeLatchSupport(void)
Definition: latch.c:147
#define Assert(condition)
Definition: c.h:670
void InitLatch(volatile Latch *latch)
Definition: latch.c:220
struct Latch * MyLatch
Definition: globals.c:52
#define elog
Definition: elog.h:219
char pkglib_path[MAXPGPATH]
Definition: globals.c:65

◆ InLocalUserIdChange()

bool InLocalUserIdChange ( void  )

Definition at line 407 of file miscinit.c.

References SECURITY_LOCAL_USERID_CHANGE, and SecurityRestrictionContext.

Referenced by GetUserIdAndContext(), is_admin_of_role(), and set_config_option().

408 {
410 }
static int SecurityRestrictionContext
Definition: miscinit.c:165
#define SECURITY_LOCAL_USERID_CHANGE
Definition: miscadmin.h:293

◆ InNoForceRLSOperation()

bool InNoForceRLSOperation ( void  )

Definition at line 425 of file miscinit.c.

References SECURITY_NOFORCE_RLS, and SecurityRestrictionContext.

Referenced by check_enable_rls().

426 {
428 }
static int SecurityRestrictionContext
Definition: miscinit.c:165
#define SECURITY_NOFORCE_RLS
Definition: miscadmin.h:295

◆ InSecurityRestrictedOperation()

bool InSecurityRestrictedOperation ( void  )

Definition at line 416 of file miscinit.c.

References SECURITY_RESTRICTED_OPERATION, and SecurityRestrictionContext.

Referenced by CheckRestrictedOperation(), DefineRelation(), is_admin_of_role(), set_config_option(), and SetUserIdAndContext().

417 {
419 }
#define SECURITY_RESTRICTED_OPERATION
Definition: miscadmin.h:294
static int SecurityRestrictionContext
Definition: miscinit.c:165

◆ pg_bindtextdomain()

void pg_bindtextdomain ( const char *  domain)

Definition at line 1511 of file miscinit.c.

References get_locale_path(), MAXPGPATH, and my_exec_path.

Referenced by _PG_init().

1512 {
1513 #ifdef ENABLE_NLS
1514  if (my_exec_path[0] != '\0')
1515  {
1516  char locale_path[MAXPGPATH];
1517 
1518  get_locale_path(my_exec_path, locale_path);
1519  bindtextdomain(domain, locale_path);
1520  pg_bind_textdomain_codeset(domain);
1521  }
1522 #endif
1523 }
#define MAXPGPATH
char my_exec_path[MAXPGPATH]
Definition: globals.c:64
void get_locale_path(const char *my_exec_path, char *ret_path)
Definition: path.c:767

◆ pg_split_opts()

void pg_split_opts ( char **  argv,
int *  argcp,
const char *  optstr 
)

Definition at line 437 of file postinit.c.

References appendStringInfoChar(), StringInfoData::data, initStringInfo(), pfree(), pstrdup(), and resetStringInfo().

Referenced by BackendRun(), and process_startup_options().

438 {
439  StringInfoData s;
440 
441  initStringInfo(&s);
442 
443  while (*optstr)
444  {
445  bool last_was_escape = false;
446 
447  resetStringInfo(&s);
448 
449  /* skip over leading space */
450  while (isspace((unsigned char) *optstr))
451  optstr++;
452 
453  if (*optstr == '\0')
454  break;
455 
456  /*
457  * Parse a single option, stopping at the first space, unless it's
458  * escaped.
459  */
460  while (*optstr)
461  {
462  if (isspace((unsigned char) *optstr) && !last_was_escape)
463  break;
464 
465  if (!last_was_escape && *optstr == '\\')
466  last_was_escape = true;
467  else
468  {
469  last_was_escape = false;
470  appendStringInfoChar(&s, *optstr);
471  }
472 
473  optstr++;
474  }
475 
476  /* now store the option in the next argv[] position */
477  argv[(*argcp)++] = pstrdup(s.data);
478  }
479 
480  pfree(s.data);
481 }
char * pstrdup(const char *in)
Definition: mcxt.c:1076
void pfree(void *pointer)
Definition: mcxt.c:949
void resetStringInfo(StringInfo str)
Definition: stringinfo.c:62
void appendStringInfoChar(StringInfo str, char ch)
Definition: stringinfo.c:169
void initStringInfo(StringInfo str)
Definition: stringinfo.c:46

◆ PostgresSigHupHandler()

void PostgresSigHupHandler ( SIGNAL_ARGS  )

Definition at line 2723 of file postgres.c.

References ConfigReloadPending, MyLatch, and SetLatch().

Referenced by PostgresMain(), and WalSndSignals().

2724 {
2725  int save_errno = errno;
2726 
2727  ConfigReloadPending = true;
2728  SetLatch(MyLatch);
2729 
2730  errno = save_errno;
2731 }
volatile sig_atomic_t ConfigReloadPending
Definition: globals.c:34
void SetLatch(volatile Latch *latch)
Definition: latch.c:414
struct Latch * MyLatch
Definition: globals.c:52

◆ PreventCommandDuringRecovery()

void PreventCommandDuringRecovery ( const char *  cmdname)

Definition at line 273 of file utility.c.

References ereport, errcode(), errmsg(), ERROR, and RecoveryInProgress().

Referenced by LockTableCommand(), pg_notify(), standard_ProcessUtility(), and txid_current().

274 {
275  if (RecoveryInProgress())
276  ereport(ERROR,
277  (errcode(ERRCODE_READ_ONLY_SQL_TRANSACTION),
278  /* translator: %s is name of a SQL command, eg CREATE */
279  errmsg("cannot execute %s during recovery",
280  cmdname)));
281 }
int errcode(int sqlerrcode)
Definition: elog.c:575
bool RecoveryInProgress(void)
Definition: xlog.c:7922
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ PreventCommandIfParallelMode()

void PreventCommandIfParallelMode ( const char *  cmdname)

Definition at line 254 of file utility.c.

References ereport, errcode(), errmsg(), ERROR, and IsInParallelMode().

Referenced by _SPI_execute_plan(), check_xact_readonly(), do_setval(), DoCopy(), ExecCheckXactReadOnly(), init_execution_state(), nextval_internal(), and SPI_cursor_open_internal().

255 {
256  if (IsInParallelMode())
257  ereport(ERROR,
258  (errcode(ERRCODE_INVALID_TRANSACTION_STATE),
259  /* translator: %s is name of a SQL command, eg CREATE */
260  errmsg("cannot execute %s during a parallel operation",
261  cmdname)));
262 }
int errcode(int sqlerrcode)
Definition: elog.c:575
bool IsInParallelMode(void)
Definition: xact.c:906
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ PreventCommandIfReadOnly()

void PreventCommandIfReadOnly ( const char *  cmdname)

Definition at line 236 of file utility.c.

References ereport, errcode(), errmsg(), ERROR, and XactReadOnly.

Referenced by check_xact_readonly(), do_setval(), DoCopy(), ExecCheckXactReadOnly(), and nextval_internal().

237 {
238  if (XactReadOnly)
239  ereport(ERROR,
240  (errcode(ERRCODE_READ_ONLY_SQL_TRANSACTION),
241  /* translator: %s is name of a SQL command, eg CREATE */
242  errmsg("cannot execute %s in a read-only transaction",
243  cmdname)));
244 }
int errcode(int sqlerrcode)
Definition: elog.c:575
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
bool XactReadOnly
Definition: xact.c:77
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ process_session_preload_libraries()

void process_session_preload_libraries ( void  )

Definition at line 1500 of file miscinit.c.

References load_libraries(), local_preload_libraries_string, and session_preload_libraries_string.

Referenced by PostgresMain().

1501 {
1503  "session_preload_libraries",
1504  false);
1506  "local_preload_libraries",
1507  true);
1508 }
static void load_libraries(const char *libraries, const char *gucname, bool restricted)
Definition: miscinit.c:1435
char * local_preload_libraries_string
Definition: miscinit.c:1423
char * session_preload_libraries_string
Definition: miscinit.c:1421

◆ process_shared_preload_libraries()

void process_shared_preload_libraries ( void  )

Definition at line 1487 of file miscinit.c.

References load_libraries(), process_shared_preload_libraries_in_progress, and shared_preload_libraries_string.

Referenced by BackendRun(), and PostmasterMain().

1488 {
1491  "shared_preload_libraries",
1492  false);
1494 }
bool process_shared_preload_libraries_in_progress
Definition: miscinit.c:1426
char * shared_preload_libraries_string
Definition: miscinit.c:1422
static void load_libraries(const char *libraries, const char *gucname, bool restricted)
Definition: miscinit.c:1435

◆ ProcessInterrupts()

void ProcessInterrupts ( void  )

Definition at line 2860 of file postgres.c.

References Assert, ClientAuthInProgress, ClientConnectionLost, CritSectionCount, DEBUG1, DestNone, DestRemote, DoingCommandRead, ereport, errcode(), errdetail_recovery_conflict(), errhint(), errmsg(), ERROR, FATAL, get_timeout_finish_time(), get_timeout_indicator(), HandleParallelMessages(), IdleInTransactionSessionTimeout, IdleInTransactionSessionTimeoutPending, InterruptHoldoffCount, InterruptPending, IsAutoVacuumWorkerProcess(), IsLogicalLauncher(), IsLogicalWorker(), LOCK_TIMEOUT, LockErrorCleanup(), ParallelMessagePending, pgstat_report_recovery_conflict(), proc_exit(), ProcDiePending, PROCSIG_RECOVERY_CONFLICT_DATABASE, QueryCancelHoldoffCount, QueryCancelPending, RecoveryConflictPending, RecoveryConflictReason, RecoveryConflictRetryable, STATEMENT_TIMEOUT, and whereToSendOutput.

Referenced by die().

2861 {
2862  /* OK to accept any interrupts now? */
2863  if (InterruptHoldoffCount != 0 || CritSectionCount != 0)
2864  return;
2865  InterruptPending = false;
2866 
2867  if (ProcDiePending)
2868  {
2869  ProcDiePending = false;
2870  QueryCancelPending = false; /* ProcDie trumps QueryCancel */
2871  LockErrorCleanup();
2872  /* As in quickdie, don't risk sending to client during auth */
2876  ereport(FATAL,
2877  (errcode(ERRCODE_QUERY_CANCELED),
2878  errmsg("canceling authentication due to timeout")));
2879  else if (IsAutoVacuumWorkerProcess())
2880  ereport(FATAL,
2881  (errcode(ERRCODE_ADMIN_SHUTDOWN),
2882  errmsg("terminating autovacuum process due to administrator command")));
2883  else if (IsLogicalWorker())
2884  ereport(FATAL,
2885  (errcode(ERRCODE_ADMIN_SHUTDOWN),
2886  errmsg("terminating logical replication worker due to administrator command")));
2887  else if (IsLogicalLauncher())
2888  {
2889  ereport(DEBUG1,
2890  (errmsg("logical replication launcher shutting down")));
2891 
2892  /*
2893  * The logical replication launcher can be stopped at any time.
2894  * Use exit status 1 so the background worker is restarted.
2895  */
2896  proc_exit(1);
2897  }
2899  {
2901  ereport(FATAL,
2902  (errcode(ERRCODE_T_R_SERIALIZATION_FAILURE),
2903  errmsg("terminating connection due to conflict with recovery"),
2905  }
2906  else if (RecoveryConflictPending)
2907  {
2908  /* Currently there is only one non-retryable recovery conflict */
2911  ereport(FATAL,
2912  (errcode(ERRCODE_DATABASE_DROPPED),
2913  errmsg("terminating connection due to conflict with recovery"),
2915  }
2916  else
2917  ereport(FATAL,
2918  (errcode(ERRCODE_ADMIN_SHUTDOWN),
2919  errmsg("terminating connection due to administrator command")));
2920  }
2922  {
2923  QueryCancelPending = false; /* lost connection trumps QueryCancel */
2924  LockErrorCleanup();
2925  /* don't send to client, we already know the connection to be dead. */
2927  ereport(FATAL,
2928  (errcode(ERRCODE_CONNECTION_FAILURE),
2929  errmsg("connection to client lost")));
2930  }
2931 
2932  /*
2933  * If a recovery conflict happens while we are waiting for input from the
2934  * client, the client is presumably just sitting idle in a transaction,
2935  * preventing recovery from making progress. Terminate the connection to
2936  * dislodge it.
2937  */
2939  {
2940  QueryCancelPending = false; /* this trumps QueryCancel */
2941  RecoveryConflictPending = false;
2942  LockErrorCleanup();
2944  ereport(FATAL,
2945  (errcode(ERRCODE_T_R_SERIALIZATION_FAILURE),
2946  errmsg("terminating connection due to conflict with recovery"),
2948  errhint("In a moment you should be able to reconnect to the"
2949  " database and repeat your command.")));
2950  }
2951 
2952  /*
2953  * Don't allow query cancel interrupts while reading input from the
2954  * client, because we might lose sync in the FE/BE protocol. (Die
2955  * interrupts are OK, because we won't read any further messages from the
2956  * client in that case.)
2957  */
2959  {
2960  /*
2961  * Re-arm InterruptPending so that we process the cancel request as
2962  * soon as we're done reading the message.
2963  */
2964  InterruptPending = true;
2965  }
2966  else if (QueryCancelPending)
2967  {
2968  bool lock_timeout_occurred;
2969  bool stmt_timeout_occurred;
2970 
2971  QueryCancelPending = false;
2972 
2973  /*
2974  * If LOCK_TIMEOUT and STATEMENT_TIMEOUT indicators are both set, we
2975  * need to clear both, so always fetch both.
2976  */
2977  lock_timeout_occurred = get_timeout_indicator(LOCK_TIMEOUT, true);
2978  stmt_timeout_occurred = get_timeout_indicator(STATEMENT_TIMEOUT, true);
2979 
2980  /*
2981  * If both were set, we want to report whichever timeout completed
2982  * earlier; this ensures consistent behavior if the machine is slow
2983  * enough that the second timeout triggers before we get here. A tie
2984  * is arbitrarily broken in favor of reporting a lock timeout.
2985  */
2986  if (lock_timeout_occurred && stmt_timeout_occurred &&
2988  lock_timeout_occurred = false; /* report stmt timeout */
2989 
2990  if (lock_timeout_occurred)
2991  {
2992  LockErrorCleanup();
2993  ereport(ERROR,
2994  (errcode(ERRCODE_LOCK_NOT_AVAILABLE),
2995  errmsg("canceling statement due to lock timeout")));
2996  }
2997  if (stmt_timeout_occurred)
2998  {
2999  LockErrorCleanup();
3000  ereport(ERROR,
3001  (errcode(ERRCODE_QUERY_CANCELED),
3002  errmsg("canceling statement due to statement timeout")));
3003  }
3005  {
3006  LockErrorCleanup();
3007  ereport(ERROR,
3008  (errcode(ERRCODE_QUERY_CANCELED),
3009  errmsg("canceling autovacuum task")));
3010  }
3012  {
3013  RecoveryConflictPending = false;
3014  LockErrorCleanup();
3016  ereport(ERROR,
3017  (errcode(ERRCODE_T_R_SERIALIZATION_FAILURE),
3018  errmsg("canceling statement due to conflict with recovery"),
3020  }
3021 
3022  /*
3023  * If we are reading a command from the client, just ignore the cancel
3024  * request --- sending an extra error message won't accomplish
3025  * anything. Otherwise, go ahead and throw the error.
3026  */
3027  if (!DoingCommandRead)
3028  {
3029  LockErrorCleanup();
3030  ereport(ERROR,
3031  (errcode(ERRCODE_QUERY_CANCELED),
3032  errmsg("canceling statement due to user request")));
3033  }
3034  }
3035 
3037  {
3038  /* Has the timeout setting changed since last we looked? */
3040  ereport(FATAL,
3041  (errcode(ERRCODE_IDLE_IN_TRANSACTION_SESSION_TIMEOUT),
3042  errmsg("terminating connection due to idle-in-transaction timeout")));
3043  else
3045 
3046  }
3047 
3050 }
volatile uint32 InterruptHoldoffCount
Definition: globals.c:35
TimestampTz get_timeout_finish_time(TimeoutId id)
Definition: timeout.c:667
#define DEBUG1
Definition: elog.h:25
int errhint(const char *fmt,...)
Definition: elog.c:987
void pgstat_report_recovery_conflict(int reason)
Definition: pgstat.c:1486
volatile bool IdleInTransactionSessionTimeoutPending
Definition: globals.c:33
volatile uint32 QueryCancelHoldoffCount
Definition: globals.c:36
void proc_exit(int code)
Definition: ipc.c:99
int errcode(int sqlerrcode)
Definition: elog.c:575
volatile bool QueryCancelPending
Definition: globals.c:30
bool IsLogicalWorker(void)
Definition: worker.c:1661
volatile bool ClientConnectionLost
Definition: globals.c:32
volatile bool ParallelMessagePending
Definition: parallel.c:103
bool ClientAuthInProgress
Definition: postmaster.c:350
#define ERROR
Definition: elog.h:43
int IdleInTransactionSessionTimeout
Definition: proc.c:63
#define FATAL
Definition: elog.h:52
void HandleParallelMessages(void)
Definition: parallel.c:727
Definition: dest.h:88
volatile uint32 CritSectionCount
Definition: globals.c:37
bool IsAutoVacuumWorkerProcess(void)
Definition: autovacuum.c:3256
#define ereport(elevel, rest)
Definition: elog.h:122
void LockErrorCleanup(void)
Definition: proc.c:686
static ProcSignalReason RecoveryConflictReason
Definition: postgres.c:166
static bool RecoveryConflictPending
Definition: postgres.c:164
static bool RecoveryConflictRetryable
Definition: postgres.c:165
bool get_timeout_indicator(TimeoutId id, bool reset_indicator)
Definition: timeout.c:633
static int errdetail_recovery_conflict(void)
Definition: postgres.c:2283
volatile bool InterruptPending
Definition: globals.c:29
#define Assert(condition)
Definition: c.h:670
static bool DoingCommandRead
Definition: postgres.c:137
volatile bool ProcDiePending
Definition: globals.c:31
int errmsg(const char *fmt,...)
Definition: elog.c:797
bool IsLogicalLauncher(void)
Definition: launcher.c:1005
CommandDest whereToSendOutput
Definition: postgres.c:88

◆ RecheckDataDirLockFile()

bool RecheckDataDirLockFile ( void  )

Definition at line 1286 of file miscinit.c.

References buffer, close, DIRECTORY_LOCK_FILE, ereport, errcode_for_file_access(), errmsg(), fd(), LOG, PG_BINARY, pgstat_report_wait_end(), pgstat_report_wait_start(), read, and WAIT_EVENT_LOCK_FILE_RECHECKDATADIR_READ.

Referenced by ServerLoop().

1287 {
1288  int fd;
1289  int len;
1290  long file_pid;
1291  char buffer[BLCKSZ];
1292 
1293  fd = open(DIRECTORY_LOCK_FILE, O_RDWR | PG_BINARY, 0);
1294  if (fd < 0)
1295  {
1296  /*
1297  * There are many foreseeable false-positive error conditions. For
1298  * safety, fail only on enumerated clearly-something-is-wrong
1299  * conditions.
1300  */
1301  switch (errno)
1302  {
1303  case ENOENT:
1304  case ENOTDIR:
1305  /* disaster */
1306  ereport(LOG,
1308  errmsg("could not open file \"%s\": %m",
1310  return false;
1311  default:
1312  /* non-fatal, at least for now */
1313  ereport(LOG,
1315  errmsg("could not open file \"%s\": %m; continuing anyway",
1317  return true;
1318  }
1319  }
1321  len = read(fd, buffer, sizeof(buffer) - 1);
1323  if (len < 0)
1324  {
1325  ereport(LOG,
1327  errmsg("could not read from file \"%s\": %m",
1329  close(fd);
1330  return true; /* treat read failure as nonfatal */
1331  }
1332  buffer[len] = '\0';
1333  close(fd);
1334  file_pid = atol(buffer);
1335  if (file_pid == getpid())
1336  return true; /* all is well */
1337 
1338  /* Trouble: someone's overwritten the lock file */
1339  ereport(LOG,
1340  (errmsg("lock file \"%s\" contains wrong PID: %ld instead of %ld",
1341  DIRECTORY_LOCK_FILE, file_pid, (long) getpid())));
1342  return false;
1343 }
#define DIRECTORY_LOCK_FILE
Definition: miscinit.c:55
#define LOG
Definition: elog.h:26
static int fd(const char *x, int i)
Definition: preproc-init.c:105
#define PG_BINARY
Definition: c.h:1025
int errcode_for_file_access(void)
Definition: elog.c:598
static void pgstat_report_wait_end(void)
Definition: pgstat.h:1244
#define ereport(elevel, rest)
Definition: elog.h:122
WalTimeSample buffer[LAG_TRACKER_BUFFER_SIZE]
Definition: walsender.c:214
static void pgstat_report_wait_start(uint32 wait_event_info)
Definition: pgstat.h:1220
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define close(a)
Definition: win32.h:12
#define read(a, b, c)
Definition: win32.h:13

◆ restore_stack_base()

void restore_stack_base ( pg_stack_base_t  base)

Definition at line 3128 of file postgres.c.

References stack_base_ptr.

3129 {
3130 #if defined(__ia64__) || defined(__ia64)
3131  stack_base_ptr = base.stack_base_ptr;
3132  register_stack_base_ptr = base.register_stack_base_ptr;
3133 #else
3134  stack_base_ptr = base;
3135 #endif
3136 }
char * stack_base_ptr
Definition: postgres.c:117

◆ set_stack_base()

pg_stack_base_t set_stack_base ( void  )

Definition at line 3097 of file postgres.c.

References stack_base_ptr.

Referenced by BackendRun(), and PostmasterMain().

3098 {
3099  char stack_base;
3100  pg_stack_base_t old;
3101 
3102 #if defined(__ia64__) || defined(__ia64)
3103  old.stack_base_ptr = stack_base_ptr;
3104  old.register_stack_base_ptr = register_stack_base_ptr;
3105 #else
3106  old = stack_base_ptr;
3107 #endif
3108 
3109  /* Set up reference point for stack depth checking */
3110  stack_base_ptr = &stack_base;
3111 #if defined(__ia64__) || defined(__ia64)
3112  register_stack_base_ptr = ia64_get_bsp();
3113 #endif
3114 
3115  return old;
3116 }
char * stack_base_ptr
Definition: postgres.c:117
char * pg_stack_base_t
Definition: miscadmin.h:268

◆ SetCurrentRoleId()

void SetCurrentRoleId ( Oid  roleid,
bool  is_superuser 
)

Definition at line 657 of file miscinit.c.

References OidIsValid, PGC_INTERNAL, PGC_S_OVERRIDE, SessionUserId, SessionUserIsSuperuser, SetConfigOption(), SetOuterUserId(), and SetRoleIsActive.

Referenced by assign_role(), and ParallelWorkerMain().

658 {
659  /*
660  * Get correct info if it's SET ROLE NONE
661  *
662  * If SessionUserId hasn't been set yet, just do nothing --- the eventual
663  * SetSessionUserId call will fix everything. This is needed since we
664  * will get called during GUC initialization.
665  */
666  if (!OidIsValid(roleid))
667  {
669  return;
670 
671  roleid = SessionUserId;
673 
674  SetRoleIsActive = false;
675  }
676  else
677  SetRoleIsActive = true;
678 
679  SetOuterUserId(roleid);
680 
681  SetConfigOption("is_superuser",
682  is_superuser ? "on" : "off",
684 }
static Oid SessionUserId
Definition: miscinit.c:157
static void SetOuterUserId(Oid userid)
Definition: miscinit.c:303
#define OidIsValid(objectId)
Definition: c.h:576
void SetConfigOption(const char *name, const char *value, GucContext context, GucSource source)
Definition: guc.c:6700
static bool SetRoleIsActive
Definition: miscinit.c:168
static bool SessionUserIsSuperuser
Definition: miscinit.c:163
static bool is_superuser(Archive *fout)
Definition: pg_dump.c:3753

◆ SetDatabasePath()

void SetDatabasePath ( const char *  path)

Definition at line 83 of file miscinit.c.

References Assert, DatabasePath, MemoryContextStrdup(), and TopMemoryContext.

Referenced by InitPostgres().

84 {
85  /* This should happen only once per process */
88 }
MemoryContext TopMemoryContext
Definition: mcxt.c:43
char * DatabasePath
Definition: globals.c:85
#define Assert(condition)
Definition: c.h:670
char * MemoryContextStrdup(MemoryContext context, const char *string)
Definition: mcxt.c:1063

◆ SetDataDir()

void SetDataDir ( const char *  dir)

Definition at line 95 of file miscinit.c.

References AssertArg, DataDir, free, and make_absolute_path().

Referenced by PostmasterMarkPIDForWorkerNotify(), and SelectConfigFiles().

96 {
97  char *new;
98 
99  AssertArg(dir);
100 
101  /* If presented path is relative, convert to absolute */
102  new = make_absolute_path(dir);
103 
104  if (DataDir)
105  free(DataDir);
106  DataDir = new;
107 }
char * make_absolute_path(const char *path)
Definition: path.c:608
#define AssertArg(condition)
Definition: c.h:672
#define free(a)
Definition: header.h:65
char * DataDir
Definition: globals.c:60

◆ SetSessionAuthorization()

void SetSessionAuthorization ( Oid  userid,
bool  is_superuser 
)

Definition at line 611 of file miscinit.c.

References AssertState, AuthenticatedUserId, AuthenticatedUserIsSuperuser, ereport, errcode(), errmsg(), ERROR, OidIsValid, PGC_INTERNAL, PGC_S_OVERRIDE, SetConfigOption(), and SetSessionUserId().

Referenced by assign_session_authorization().

612 {
613  /* Must have authenticated already, else can't make permission check */
615 
616  if (userid != AuthenticatedUserId &&
618  ereport(ERROR,
619  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
620  errmsg("permission denied to set session authorization")));
621 
623 
624  SetConfigOption("is_superuser",
625  is_superuser ? "on" : "off",
627 }
#define AssertState(condition)
Definition: c.h:673
int errcode(int sqlerrcode)
Definition: elog.c:575
#define OidIsValid(objectId)
Definition: c.h:576
#define ERROR
Definition: elog.h:43
void SetConfigOption(const char *name, const char *value, GucContext context, GucSource source)
Definition: guc.c:6700
static bool AuthenticatedUserIsSuperuser
Definition: miscinit.c:162
#define ereport(elevel, rest)
Definition: elog.h:122
static bool is_superuser(Archive *fout)
Definition: pg_dump.c:3753
int errmsg(const char *fmt,...)
Definition: elog.c:797
static void SetSessionUserId(Oid userid, bool is_superuser)
Definition: miscinit.c:326
static Oid AuthenticatedUserId
Definition: miscinit.c:156

◆ SetUserIdAndContext()

void SetUserIdAndContext ( Oid  userid,
bool  sec_def_context 
)

Definition at line 445 of file miscinit.c.

References CurrentUserId, ereport, errcode(), errmsg(), ERROR, InSecurityRestrictedOperation(), SECURITY_LOCAL_USERID_CHANGE, and SecurityRestrictionContext.

446 {
447  /* We throw the same error SET ROLE would. */
449  ereport(ERROR,
450  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
451  errmsg("cannot set parameter \"%s\" within security-restricted operation",
452  "role")));
453  CurrentUserId = userid;
454  if (sec_def_context)
456  else
458 }
int errcode(int sqlerrcode)
Definition: elog.c:575
#define ERROR
Definition: elog.h:43
static int SecurityRestrictionContext
Definition: miscinit.c:165
#define ereport(elevel, rest)
Definition: elog.h:122
#define SECURITY_LOCAL_USERID_CHANGE
Definition: miscadmin.h:293
static Oid CurrentUserId
Definition: miscinit.c:159
bool InSecurityRestrictedOperation(void)
Definition: miscinit.c:416
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ SetUserIdAndSecContext()

void SetUserIdAndSecContext ( Oid  userid,
int  sec_context 
)

◆ stack_is_too_deep()

bool stack_is_too_deep ( void  )

Definition at line 3164 of file postgres.c.

References max_stack_depth_bytes, and stack_base_ptr.

Referenced by check_stack_depth(), and rstacktoodeep().

3165 {
3166  char stack_top_loc;
3167  long stack_depth;
3168 
3169  /*
3170  * Compute distance from reference point to my local variables
3171  */
3172  stack_depth = (long) (stack_base_ptr - &stack_top_loc);
3173 
3174  /*
3175  * Take abs value, since stacks grow up on some machines, down on others
3176  */
3177  if (stack_depth < 0)
3178  stack_depth = -stack_depth;
3179 
3180  /*
3181  * Trouble?
3182  *
3183  * The test on stack_base_ptr prevents us from erroring out if called
3184  * during process setup or in a non-backend process. Logically it should
3185  * be done first, but putting it here avoids wasting cycles during normal
3186  * cases.
3187  */
3188  if (stack_depth > max_stack_depth_bytes &&
3189  stack_base_ptr != NULL)
3190  return true;
3191 
3192  /*
3193  * On IA64 there is a separate "register" stack that requires its own
3194  * independent check. For this, we have to measure the change in the
3195  * "BSP" pointer from PostgresMain to here. Logic is just as above,
3196  * except that we know IA64's register stack grows up.
3197  *
3198  * Note we assume that the same max_stack_depth applies to both stacks.
3199  */
3200 #if defined(__ia64__) || defined(__ia64)
3201  stack_depth = (long) (ia64_get_bsp() - register_stack_base_ptr);
3202 
3203  if (stack_depth > max_stack_depth_bytes &&
3204  register_stack_base_ptr != NULL)
3205  return true;
3206 #endif /* IA64 */
3207 
3208  return false;
3209 }
static long max_stack_depth_bytes
Definition: postgres.c:109
char * stack_base_ptr
Definition: postgres.c:117

◆ superuser()

bool superuser ( void  )

Definition at line 47 of file superuser.c.

References GetUserId(), and superuser_arg().

Referenced by AddRoleMems(), AlterForeignDataWrapper(), AlterForeignDataWrapperOwner_internal(), AlterForeignServerOwner_internal(), AlterFunction(), AlterObjectNamespace_internal(), AlterObjectOwner_internal(), AlterObjectRename_internal(), AlterOpFamily(), AlterPublicationOwner_internal(), AlterRole(), AlterRoleSet(), AlterSystemSetConfigFile(), AlterTypeOwner(), ATExecChangeOwner(), brin_metapage_info(), brin_page_items(), brin_page_type(), brin_revmap_data(), bt_metap(), bt_page_items(), bt_page_items_bytea(), bt_page_stats(), check_encoding_locale_matches(), check_permissions(), CreateAccessMethod(), CreateCast(), CreateEventTrigger(), CreateForeignDataWrapper(), CreateFunction(), CreateProceduralLanguage(), CreatePublication(), CreateRole(), CreateSubscription(), CreateTableSpace(), dblink_connstr_check(), dblink_security_check(), DefineAggregate(), DefineOpClass(), DefineOpFamily(), DefineTSParser(), DefineTSTemplate(), DefineType(), DelRoleMems(), DoCopy(), DropRole(), dummy_object_relabel(), EnableDisableTrigger(), ExecSetVariableStmt(), ExecuteDoStmt(), file_fdw_validator(), fmgr_security_definer(), fsm_page_contents(), get_raw_page_internal(), GetConfigOptionByNum(), gin_leafpage_items(), gin_metapage_info(), gin_page_opaque_info(), GUCArrayReset(), hash_bitmap_info(), hash_metapage_info(), hash_page_items(), hash_page_stats(), hash_page_type(), have_createdb_privilege(), heap_page_items(), InitPostgres(), main(), page_checksum(), page_header(), pg_import_system_collations(), pg_logdir_ls(), pg_ls_dir(), pg_read_binary_file(), pg_read_file(), pg_relpages(), pg_relpagesbyid(), pg_signal_backend(), pg_stat_file(), pg_stat_get_wal_senders(), pgstat_get_backend_current_activity(), pgstatginindex(), pgstatindex(), pgstatindexbyid(), pgstattuple(), pgstattuple_approx(), pgstattuplebyid(), ProcedureCreate(), regress_putenv(), RemoveAccessMethodById(), RenameRole(), replorigin_check_prerequisites(), requireSuperuser(), sepgsql_restorecon(), set_config_by_name(), SetPGVariable(), ShowAllGUCConfig(), standard_ProcessUtility(), tuple_data_split(), validate_option_array_item(), and wait_pid().

48 {
49  return superuser_arg(GetUserId());
50 }
Oid GetUserId(void)
Definition: miscinit.c:284
bool superuser_arg(Oid roleid)
Definition: superuser.c:57

◆ superuser_arg()

bool superuser_arg ( Oid  roleid)

Definition at line 57 of file superuser.c.

References AUTHOID, BOOTSTRAP_SUPERUSERID, CacheRegisterSyscacheCallback(), GETSTRUCT, HeapTupleIsValid, IsUnderPostmaster, last_roleid, last_roleid_is_super, ObjectIdGetDatum, OidIsValid, ReleaseSysCache(), roleid_callback_registered, RoleidCallback(), and SearchSysCache1().

Referenced by AddRoleMems(), AlterEventTriggerOwner_internal(), AlterForeignDataWrapperOwner_internal(), AlterPublicationOwner_internal(), AlterSubscriptionOwner_internal(), check_conn_params(), check_object_ownership(), connect_pg_server(), DelRoleMems(), has_bypassrls_privilege(), has_createrole_privilege(), has_privs_of_role(), is_admin_of_role(), is_member_of_role(), LockGXact(), pg_class_aclmask(), pg_class_ownercheck(), pg_collation_ownercheck(), pg_conversion_ownercheck(), pg_database_aclmask(), pg_database_ownercheck(), pg_event_trigger_ownercheck(), pg_extension_ownercheck(), pg_foreign_data_wrapper_aclmask(), pg_foreign_data_wrapper_ownercheck(), pg_foreign_server_aclmask(), pg_foreign_server_ownercheck(), pg_language_aclmask(), pg_language_ownercheck(), pg_largeobject_aclmask_snapshot(), pg_largeobject_ownercheck(), pg_namespace_aclmask(), pg_namespace_ownercheck(), pg_opclass_ownercheck(), pg_oper_ownercheck(), pg_opfamily_ownercheck(), pg_proc_aclmask(), pg_proc_ownercheck(), pg_publication_ownercheck(), pg_signal_backend(), pg_statistics_object_ownercheck(), pg_subscription_ownercheck(), pg_tablespace_aclmask(), pg_tablespace_ownercheck(), pg_ts_config_ownercheck(), pg_ts_dict_ownercheck(), pg_type_aclmask(), pg_type_ownercheck(), select_best_grantor(), and superuser().

58 {
59  bool result;
60  HeapTuple rtup;
61 
62  /* Quick out for cache hit */
63  if (OidIsValid(last_roleid) && last_roleid == roleid)
64  return last_roleid_is_super;
65 
66  /* Special escape path in case you deleted all your users. */
67  if (!IsUnderPostmaster && roleid == BOOTSTRAP_SUPERUSERID)
68  return true;
69 
70  /* OK, look up the information in pg_authid */
71  rtup = SearchSysCache1(AUTHOID, ObjectIdGetDatum(roleid));
72  if (HeapTupleIsValid(rtup))
73  {
74  result = ((Form_pg_authid) GETSTRUCT(rtup))->rolsuper;
75  ReleaseSysCache(rtup);
76  }
77  else
78  {
79  /* Report "not superuser" for invalid roleids */
80  result = false;
81  }
82 
83  /* If first time through, set up callback for cache flushes */
85  {
88  (Datum) 0);
90  }
91 
92  /* Cache the result for next time */
93  last_roleid = roleid;
94  last_roleid_is_super = result;
95 
96  return result;
97 }
static Oid last_roleid
Definition: superuser.c:36
#define GETSTRUCT(TUP)
Definition: htup_details.h:661
#define OidIsValid(objectId)
Definition: c.h:576
static void RoleidCallback(Datum arg, int cacheid, uint32 hashvalue)
Definition: superuser.c:104
FormData_pg_authid * Form_pg_authid
Definition: pg_authid.h:72
static bool last_roleid_is_super
Definition: superuser.c:37
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
bool IsUnderPostmaster
Definition: globals.c:101
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1112
void CacheRegisterSyscacheCallback(int cacheid, SyscacheCallbackFunction func, Datum arg)
Definition: inval.c:1389
uintptr_t Datum
Definition: postgres.h:372
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1160
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define BOOTSTRAP_SUPERUSERID
Definition: pg_authid.h:102
static bool roleid_callback_registered
Definition: superuser.c:38

◆ SwitchBackToLocalLatch()

void SwitchBackToLocalLatch ( void  )

Definition at line 265 of file miscinit.c.

References Assert, FeBeWaitSet, LocalLatchData, ModifyWaitEvent(), MyLatch, MyProc, PGPROC::procLatch, SetLatch(), and WL_LATCH_SET.

Referenced by AuxiliaryProcKill(), and ProcKill().

266 {
268  Assert(MyProc != NULL && MyLatch == &MyProc->procLatch);
269 
271 
272  if (FeBeWaitSet)
274 
275  SetLatch(MyLatch);
276 }
PGPROC * MyProc
Definition: proc.c:67
void ModifyWaitEvent(WaitEventSet *set, int pos, uint32 events, Latch *latch)
Definition: latch.c:736
WaitEventSet * FeBeWaitSet
Definition: pqcomm.c:186
Latch procLatch
Definition: proc.h:104
static Latch LocalLatchData
Definition: miscinit.c:62
void SetLatch(volatile Latch *latch)
Definition: latch.c:414
#define Assert(condition)
Definition: c.h:670
struct Latch * MyLatch
Definition: globals.c:52
#define WL_LATCH_SET
Definition: latch.h:124

◆ SwitchToSharedLatch()

void SwitchToSharedLatch ( void  )

Definition at line 246 of file miscinit.c.

References Assert, FeBeWaitSet, ModifyWaitEvent(), MyLatch, MyProc, PGPROC::procLatch, SetLatch(), and WL_LATCH_SET.

Referenced by InitAuxiliaryProcess(), and InitProcess().

247 {
249  Assert(MyProc != NULL);
250 
252 
253  if (FeBeWaitSet)
255 
256  /*
257  * Set the shared latch as the local one might have been set. This
258  * shouldn't normally be necessary as code is supposed to check the
259  * condition before waiting for the latch, but a bit care can't hurt.
260  */
261  SetLatch(MyLatch);
262 }
PGPROC * MyProc
Definition: proc.c:67
void ModifyWaitEvent(WaitEventSet *set, int pos, uint32 events, Latch *latch)
Definition: latch.c:736
WaitEventSet * FeBeWaitSet
Definition: pqcomm.c:186
Latch procLatch
Definition: proc.h:104
static Latch LocalLatchData
Definition: miscinit.c:62
void SetLatch(volatile Latch *latch)
Definition: latch.c:414
#define Assert(condition)
Definition: c.h:670
struct Latch * MyLatch
Definition: globals.c:52
#define WL_LATCH_SET
Definition: latch.h:124

◆ TouchSocketLockFiles()

void TouchSocketLockFiles ( void  )

Definition at line 1108 of file miscinit.c.

References buffer, close, DIRECTORY_LOCK_FILE, fd(), lfirst, PG_BINARY, and read.

Referenced by ServerLoop().

1109 {
1110  ListCell *l;
1111 
1112  foreach(l, lock_files)
1113  {
1114  char *socketLockFile = (char *) lfirst(l);
1115 
1116  /* No need to touch the data directory lock file, we trust */
1117  if (strcmp(socketLockFile, DIRECTORY_LOCK_FILE) == 0)
1118  continue;
1119 
1120  /*
1121  * utime() is POSIX standard, utimes() is a common alternative; if we
1122  * have neither, fall back to actually reading the file (which only
1123  * sets the access time not mod time, but that should be enough in
1124  * most cases). In all paths, we ignore errors.
1125  */
1126 #ifdef HAVE_UTIME
1127  utime(socketLockFile, NULL);
1128 #else /* !HAVE_UTIME */
1129 #ifdef HAVE_UTIMES
1130  utimes(socketLockFile, NULL);
1131 #else /* !HAVE_UTIMES */
1132  int fd;
1133  char buffer[1];
1134 
1135  fd = open(socketLockFile, O_RDONLY | PG_BINARY, 0);
1136  if (fd >= 0)
1137  {
1138  read(fd, buffer, sizeof(buffer));
1139  close(fd);
1140  }
1141 #endif /* HAVE_UTIMES */
1142 #endif /* HAVE_UTIME */
1143  }
1144 }
static List * lock_files
Definition: miscinit.c:60
#define DIRECTORY_LOCK_FILE
Definition: miscinit.c:55
static int fd(const char *x, int i)
Definition: preproc-init.c:105
#define PG_BINARY
Definition: c.h:1025
#define lfirst(lc)
Definition: pg_list.h:106
WalTimeSample buffer[LAG_TRACKER_BUFFER_SIZE]
Definition: walsender.c:214
#define close(a)
Definition: win32.h:12
#define read(a, b, c)
Definition: win32.h:13

◆ trace_recovery()

int trace_recovery ( int  trace_level)

◆ ValidatePgVersion()

void ValidatePgVersion ( const char *  path)

Definition at line 1358 of file miscinit.c.

References AllocateFile(), ereport, errcode(), errcode_for_file_access(), errdetail(), errhint(), errmsg(), FATAL, FreeFile(), MAXPGPATH, and snprintf().

Referenced by AuxiliaryProcessMain(), checkDataDir(), InitPostgres(), and PostgresMain().

1359 {
1360  char full_path[MAXPGPATH];
1361  FILE *file;
1362  int ret;
1363  long file_major;
1364  long my_major;
1365  char *endptr;
1366  char file_version_string[64];
1367  const char *my_version_string = PG_VERSION;
1368 
1369  my_major = strtol(my_version_string, &endptr, 10);
1370 
1371  snprintf(full_path, sizeof(full_path), "%s/PG_VERSION", path);
1372 
1373  file = AllocateFile(full_path, "r");
1374  if (!file)
1375  {
1376  if (errno == ENOENT)
1377  ereport(FATAL,
1378  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1379  errmsg("\"%s\" is not a valid data directory",
1380  path),
1381  errdetail("File \"%s\" is missing.", full_path)));
1382  else
1383  ereport(FATAL,
1385  errmsg("could not open file \"%s\": %m", full_path)));
1386  }
1387 
1388  file_version_string[0] = '\0';
1389  ret = fscanf(file, "%63s", file_version_string);
1390  file_major = strtol(file_version_string, &endptr, 10);
1391 
1392  if (ret != 1 || endptr == file_version_string)
1393  ereport(FATAL,
1394  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1395  errmsg("\"%s\" is not a valid data directory",
1396  path),
1397  errdetail("File \"%s\" does not contain valid data.",
1398  full_path),
1399  errhint("You might need to initdb.")));
1400 
1401  FreeFile(file);
1402 
1403  if (my_major != file_major)
1404  ereport(FATAL,
1405  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1406  errmsg("database files are incompatible with server"),
1407  errdetail("The data directory was initialized by PostgreSQL version %s, "
1408  "which is not compatible with this version %s.",
1409  file_version_string, my_version_string)));
1410 }
int errhint(const char *fmt,...)
Definition: elog.c:987
int errcode(int sqlerrcode)
Definition: elog.c:575
int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
#define FATAL
Definition: elog.h:52
#define MAXPGPATH
int errdetail(const char *fmt,...)
Definition: elog.c:873
int errcode_for_file_access(void)
Definition: elog.c:598
FILE * AllocateFile(const char *name, const char *mode)
Definition: fd.c:2342
#define ereport(elevel, rest)
Definition: elog.h:122
int FreeFile(FILE *file)
Definition: fd.c:2534
int errmsg(const char *fmt,...)
Definition: elog.c:797

Variable Documentation

◆ allowSystemTableMods

◆ ClientConnectionLost

volatile bool ClientConnectionLost

Definition at line 32 of file globals.c.

Referenced by internal_flush(), and ProcessInterrupts().

◆ ConfigReloadPending

PGDLLIMPORT volatile sig_atomic_t ConfigReloadPending

◆ CritSectionCount

◆ DatabasePath

◆ DataDir

◆ DateOrder

PGDLLIMPORT int DateOrder

◆ DateStyle

◆ enableFsync

◆ ExitOnAnyError

PGDLLIMPORT bool ExitOnAnyError

Definition at line 105 of file globals.c.

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

◆ IdleInTransactionSessionTimeoutPending

PGDLLIMPORT volatile bool IdleInTransactionSessionTimeoutPending

Definition at line 33 of file globals.c.

Referenced by IdleInTransactionSessionTimeoutHandler(), and ProcessInterrupts().

◆ IgnoreSystemIndexes

bool IgnoreSystemIndexes

◆ InterruptHoldoffCount

PGDLLIMPORT volatile uint32 InterruptHoldoffCount

Definition at line 35 of file globals.c.

Referenced by errfinish(), proc_exit_prepare(), and ProcessInterrupts().

◆ InterruptPending

◆ IntervalStyle

PGDLLIMPORT int IntervalStyle

◆ IsBackgroundWorker

◆ IsBinaryUpgrade

◆ IsPostmasterEnvironment

◆ IsUnderPostmaster

PGDLLIMPORT bool IsUnderPostmaster

Definition at line 101 of file globals.c.

Referenced by _PG_init(), AutoVacuumShmemInit(), AuxiliaryProcessMain(), BackendRandomShmemInit(), BackgroundWorkerShmemInit(), bootstrap_signals(), BootstrapModeMain(), BTreeShmemInit(), CheckMyDatabase(), CheckRecoveryConsistency(), CommitTsShmemInit(), CreateLWLocks(), CreateSharedMemoryAndSemaphores(), DebugFileOpen(), dsm_attach(), dsm_create(), dsm_postmaster_startup(), EventTriggerDDLCommandEnd(), EventTriggerDDLCommandStart(), EventTriggerSQLDrop(), EventTriggerTableRewrite(), ForgetDatabaseFsyncRequests(), ForgetRelationFsyncRequests(), ForwardFsyncRequest(), GetNewMultiXactId(), GetNewTransactionId(), HandleStartupProcInterrupts(), heap_create_with_catalog(), init_ps_display(), InitCommunication(), InitializeLatchSupport(), InitializeSessionUserId(), InitializeSessionUserIdStandalone(), InitPostgres(), InitPostmasterChild(), InitPredicateLocks(), InitProcess(), LWLockAcquire(), mdinit(), MultiXactShmemInit(), OldSerXidInit(), pg_backend_random(), PGSemaphoreCreate(), PGSharedMemoryCreate(), PGSharedMemoryNoReAttach(), PGSharedMemoryReAttach(), pgss_shmem_startup(), PostgresMain(), process_postgres_switches(), process_settings(), ProcKill(), readRecoveryCommandFile(), register_unlink(), RegisterBackgroundWorker(), RegisterDynamicBackgroundWorker(), RequestAddinShmemSpace(), RequestNamedLWLockTranche(), SendPostmasterSignal(), set_config_option(), set_config_sourcefile(), set_ps_display(), SetMultiXactIdLimit(), SetTransactionIdLimit(), ShmemInitStruct(), SimpleLruInit(), standard_planner(), StartupXLOG(), superuser_arg(), SyncScanShmemInit(), TwoPhaseShmemInit(), verify_dictoptions(), WaitLatchOrSocket(), XLogArchiveNotify(), and XLogWrite().

◆ local_preload_libraries_string

char* local_preload_libraries_string

Definition at line 1423 of file miscinit.c.

Referenced by process_session_preload_libraries().

◆ maintenance_work_mem

◆ max_parallel_workers

int max_parallel_workers

Definition at line 125 of file globals.c.

Referenced by RegisterDynamicBackgroundWorker().

◆ max_worker_processes

◆ MaxBackends

◆ MaxConnections

◆ Mode

Definition at line 57 of file miscinit.c.

◆ my_exec_path

◆ MyAuxProcType

AuxProcType MyAuxProcType

Definition at line 69 of file bootstrap.c.

Referenced by AuxiliaryProcessMain(), pgstat_bestart(), and pgstat_initialize().

◆ MyCancelKey

◆ MyDatabaseId

PGDLLIMPORT Oid MyDatabaseId

Definition at line 77 of file globals.c.

Referenced by AfterTriggerSetState(), AlterDatabase(), AlterObjectRename_internal(), AlterPublicationOwner_internal(), AlterSchemaOwner_internal(), AlterSubscription(), AlterSubscriptionOwner(), analyze_rel(), asyncQueueNotificationToEntry(), asyncQueueProcessPageEntries(), AutoVacuumRequestWork(), backend_read_statsfile(), CacheInvalidateCatalog(), CacheInvalidateHeapTuple(), CacheInvalidateRelcache(), CacheInvalidateRelcacheByTuple(), CheckLogicalDecodingRequirements(), CheckMyDatabase(), checkSharedDependencies(), classIdGetDbId(), CreateDecodingContext(), CreateInitDecodingContext(), CreateProceduralLanguage(), CreatePublication(), CreateSchemaCommand(), CreateSubscription(), current_database(), database_to_xml_internal(), DeconstructQualifiedName(), do_analyze_rel(), do_autovacuum(), dropdb(), DropSubscription(), Exec_ListenPreCommit(), exec_object_restorecon(), exec_replication_command(), ExpandColumnRefStar(), ExportSnapshot(), get_subscription_oid(), GetCurrentVirtualXIDs(), GetNewRelFileNode(), GetOldestXmin(), IdentifySystem(), ImportSnapshot(), InitializeParallelDSM(), InitPostgres(), InitTempTableNamespace(), lazy_vacuum_rel(), libpqrcv_exec(), LocalExecuteInvalidationMessage(), LockDatabaseObject(), LockGXact(), logical_heap_rewrite_flush_mappings(), logical_rewrite_log_mapping(), LogLogicalMessage(), LogStandbyInvalidations(), map_sql_catalog_to_xmlschema_types(), map_sql_schema_to_xmlschema_types(), map_sql_table_to_xmlschema(), map_sql_type_to_xml_name(), movedb(), perform_relmap_update(), perform_work_item(), pg_namespace_aclmask(), pg_relation_filepath(), pgss_store(), pgstat_beshutdown_hook(), pgstat_bestart(), pgstat_drop_database(), pgstat_fetch_stat_funcentry(), pgstat_fetch_stat_tabentry(), pgstat_report_analyze(), pgstat_report_deadlock(), pgstat_report_recovery_conflict(), pgstat_report_stat(), pgstat_report_tempfile(), pgstat_report_vacuum(), pgstat_reset_counters(), pgstat_reset_single_counter(), pgstat_send_funcstats(), pgstat_vacuum_stat(), PrepareToInvalidateCacheTuple(), PrepareTransaction(), ProcArrayInstallImportedXmin(), ProcArrayInstallRestoredXmin(), RangeVarGetAndCheckCreationNamespace(), RangeVarGetCreationNamespace(), RangeVarGetRelidExtended(), ReindexMultipleTables(), RelationInitLockInfo(), RelationInitPhysicalAddr(), RelationMapFinishBootstrap(), RenameDatabase(), RenameSchema(), ReplicationSlotCreate(), ScanPgRelation(), sepgsql_schema_post_create(), SetLocktagRelationOid(), shdepDropOwned(), shdepReassignOwned(), table_recheck_autovac(), transformColumnRef(), UnlockDatabaseObject(), UpdateLogicalMappings(), vac_truncate_clog(), vac_update_datfrozenxid(), vacuum_rel(), and XactLogCommitRecord().

◆ MyDatabaseTableSpace

◆ MyLatch

PGDLLIMPORT struct Latch* MyLatch

Definition at line 52 of file globals.c.

Referenced by ApplyLauncherMain(), ArchSigHupHandler(), ArchSigTermHandler(), AutoVacLauncherMain(), av_sighup_handler(), avl_sigterm_handler(), avl_sigusr2_handler(), BackgroundWriterMain(), be_tls_open_server(), BgSigHupHandler(), CheckDeadLockAlert(), CheckpointerMain(), ChkptSigHupHandler(), ConditionVariablePrepareToSleep(), ConditionVariableSleep(), copy_read_data(), die(), gather_readnext(), handle_sig_alarm(), handle_sigterm(), HandleCatchupInterrupt(), HandleNotifyInterrupt(), HandleParallelMessageInterrupt(), IdleInTransactionSessionTimeoutHandler(), initialize_worker_spi(), InitPostmasterChild(), InitStandaloneProcess(), libpqrcv_connect(), libpqrcv_PQexec(), logicalrep_launcher_sighup(), logicalrep_worker_sighup(), logicalrep_worker_stop(), LogicalRepApplyLoop(), mq_putmessage(), pg_sleep(), pgarch_MainLoop(), pgarch_waken(), pgarch_waken_stop(), pgfdw_get_cleanup_result(), pgfdw_get_result(), pgstat_exit(), pgstat_sighup_handler(), PgstatCollectorMain(), PostgresSigHupHandler(), pq_init(), procsignal_sigusr1_handler(), ProcSleep(), ProcWaitForSignal(), RecoveryConflictInterrupt(), ReqCheckpointHandler(), ReqShutdownHandler(), secure_read(), secure_write(), shm_mq_receive_bytes(), shm_mq_send_bytes(), shm_mq_wait_internal(), sigHupHandler(), sigUsr1Handler(), StatementCancelHandler(), SwitchBackToLocalLatch(), SwitchToSharedLatch(), SyncRepWaitForLSN(), SysLoggerMain(), test_shm_mq_pipelined(), throttle(), wait_for_relation_state_change(), wait_for_worker_state_change(), wait_for_workers_to_become_ready(), WaitForBackgroundWorkerShutdown(), WaitForBackgroundWorkerStartup(), WaitForParallelWorkersToFinish(), WaitForReplicationWorkerAttach(), WalShutdownHandler(), WalSigHupHandler(), WalSndLastCycleHandler(), WalSndLoop(), WalSndWaitForWal(), WalSndWriteData(), WalWriterMain(), worker_spi_sighup(), worker_spi_sigterm(), and write_syslogger_file().

◆ MyPMChildSlot

◆ MyProcPid

PGDLLIMPORT int MyProcPid

Definition at line 39 of file globals.c.

Referenced by AddWaitEventToSet(), ApplyLauncherMain(), apw_detach_shmem(), apw_dump_now(), apw_load_buffers(), apw_start_database_worker(), apw_start_master_worker(), Async_Listen(), Async_Unlisten(), Async_UnlistenAll(), asyncQueueNotificationToEntry(), asyncQueueReadAllNotifications(), asyncQueueUnregister(), autoprewarm_main(), AutoVacLauncherMain(), BackendRun(), CheckpointerMain(), CleanupProcSignalState(), DisownLatch(), Exec_ListenPreCommit(), Exec_UnlistenAllCommit(), Exec_UnlistenCommit(), ExportSnapshot(), GetSerializableTransactionSnapshotInt(), HandleWalSndInitStopping(), InitAuxiliaryProcess(), InitializeLatchSupport(), InitializeParallelDSM(), InitLatch(), InitPostmasterChild(), InitPostmasterDeathWatchHandle(), InitProcess(), InitStandaloneProcess(), InitWalSenderSlot(), IsLogicalLauncher(), LaunchParallelWorkers(), LockBufferForCleanup(), LockTimeoutHandler(), log_line_prefix(), logicalrep_worker_launch(), OpenTemporaryFileInTablespace(), OwnLatch(), ParallelWorkerMain(), pg_backend_pid(), pgstat_bestart(), PostgresMain(), PostmasterMain(), ProcSignalInit(), ProcSleep(), PublishStartupProcessInformation(), ReplicationOriginExitCleanup(), ReplicationSlotAcquire(), ReplicationSlotCleanup(), ReplicationSlotCreate(), ReplicationSlotsDropDBSlots(), replorigin_session_setup(), ResetLatch(), ServerLoop(), set_ps_display(), SetLatch(), setup_background_workers(), SharedFileSetInit(), SharedInvalBackendInit(), SignalBackends(), SnapBuildSerialize(), StatementTimeoutHandler(), UnlockBuffers(), WalRcvDie(), WalReceiverMain(), worker_spi_launch(), write_csvlog(), write_pipe_chunks(), and write_relcache_init_file().

◆ MyProcPort

◆ MyStartTime

◆ NBuffers

PGDLLIMPORT int NBuffers

Definition at line 122 of file globals.c.

◆ OutputFileName

char OutputFileName[]

Definition at line 62 of file globals.c.

Referenced by AuxiliaryProcessMain(), DebugFileOpen(), and process_postgres_switches().

◆ pkglib_path

◆ PostmasterPid

◆ ProcDiePending

◆ process_shared_preload_libraries_in_progress

PGDLLIMPORT bool process_shared_preload_libraries_in_progress

◆ QueryCancelHoldoffCount

PGDLLIMPORT volatile uint32 QueryCancelHoldoffCount

Definition at line 36 of file globals.c.

Referenced by errfinish(), and ProcessInterrupts().

◆ QueryCancelPending

◆ session_preload_libraries_string

char* session_preload_libraries_string

Definition at line 1421 of file miscinit.c.

Referenced by process_session_preload_libraries().

◆ shared_preload_libraries_string

char* shared_preload_libraries_string

Definition at line 1422 of file miscinit.c.

Referenced by process_shared_preload_libraries().

◆ trace_recovery_messages

int trace_recovery_messages

Definition at line 456 of file guc.c.

Referenced by StartupXLOG(), and trace_recovery().

◆ VacuumCostActive

bool VacuumCostActive

◆ VacuumCostBalance

int VacuumCostBalance

◆ VacuumCostDelay

◆ VacuumCostLimit

int VacuumCostLimit

◆ VacuumCostPageDirty

int VacuumCostPageDirty

Definition at line 130 of file globals.c.

Referenced by MarkBufferDirty(), and MarkBufferDirtyHint().

◆ VacuumCostPageHit

int VacuumCostPageHit

Definition at line 128 of file globals.c.

Referenced by ReadBuffer_common().

◆ VacuumCostPageMiss

int VacuumCostPageMiss

Definition at line 129 of file globals.c.

Referenced by ReadBuffer_common().

◆ VacuumPageDirty

int VacuumPageDirty

Definition at line 136 of file globals.c.

Referenced by lazy_vacuum_rel(), MarkBufferDirty(), MarkBufferDirtyHint(), and vacuum().

◆ VacuumPageHit

int VacuumPageHit

Definition at line 134 of file globals.c.

Referenced by lazy_vacuum_rel(), ReadBuffer_common(), and vacuum().

◆ VacuumPageMiss

int VacuumPageMiss

Definition at line 135 of file globals.c.

Referenced by lazy_vacuum_rel(), ReadBuffer_common(), and vacuum().

◆ work_mem

PGDLLIMPORT int work_mem

Definition at line 113 of file globals.c.

Referenced by _bt_spoolinit(), begin_partition(), brin_page_items(), BuildTupleHashTable(), choose_hashed_setop(), collectMatchBitmap(), compute_bitmap_pages(), connectby(), consider_groupingsets_paths(), cost_material(), cost_rescan(), create_distinct_paths(), create_gather_merge_path(), create_grouping_paths(), create_groupingsets_path(), create_merge_append_path(), create_sort_path(), create_unique_path(), crosstab(), dblink_get_notify(), deflist_to_tuplestore(), each_worker(), each_worker_jsonb(), elements_worker(), elements_worker_jsonb(), exec_init_tuple_store(), ExecChooseHashTableSize(), ExecHashTableCreate(), ExecInitCteScan(), ExecInitRecursiveUnion(), ExecMakeTableFunctionResult(), ExecMaterial(), ExecRecursiveUnion(), ExecSort(), final_cost_hashjoin(), final_cost_mergejoin(), fmgr_sql(), get_crosstab_tuplestore(), GetCurrentFDWTuplestore(), ginInsertCleanup(), initial_cost_mergejoin(), initialize_aggregate(), initialize_phase(), label_sort_with_costsize(), libpqrcv_processTuples(), MakeTransitionCaptureState(), materializeQueryResult(), materializeResult(), MultiExecBitmapIndexScan(), MultiExecBitmapOr(), ordered_set_startup(), pg_available_extension_versions(), pg_available_extensions(), pg_config(), pg_cursor(), pg_event_trigger_ddl_commands(), pg_event_trigger_dropped_objects(), pg_extension_update_paths(), pg_get_replication_slots(), pg_hba_file_rules(), pg_logical_slot_get_changes_guts(), pg_prepared_statement(), pg_show_replication_origin_status(), pg_stat_get_activity(), pg_stat_get_progress_info(), pg_stat_get_subscription(), pg_stat_get_wal_senders(), pg_stat_statements_internal(), pg_stop_backup_v2(), plperl_return_next_internal(), pltcl_init_tuple_store(), populate_recordset_worker(), PortalCreateHoldStore(), show_all_file_settings(), storeRow(), subplan_is_hashable(), tfuncFetchRows(), and xpath_table().