PostgreSQL Source Code  git master
auxprocess.c File Reference
#include "postgres.h"
#include <unistd.h>
#include <signal.h>
#include "miscadmin.h"
#include "pgstat.h"
#include "postmaster/auxprocess.h"
#include "storage/condition_variable.h"
#include "storage/ipc.h"
#include "storage/proc.h"
#include "storage/procsignal.h"
#include "utils/memutils.h"
#include "utils/ps_status.h"
Include dependency graph for auxprocess.c:

Go to the source code of this file.

Functions

static void ShutdownAuxiliaryProcess (int code, Datum arg)
 
void AuxiliaryProcessMainCommon (void)
 

Function Documentation

◆ AuxiliaryProcessMainCommon()

void AuxiliaryProcessMainCommon ( void  )

Definition at line 39 of file auxprocess.c.

40 {
42 
43  /* Release postmaster's working memory context */
45  {
47  PostmasterContext = NULL;
48  }
49 
50  init_ps_display(NULL);
51 
53 
54  IgnoreSystemIndexes = true;
55 
56  /*
57  * As an auxiliary process, we aren't going to do the full InitPostgres
58  * pushups, but there are a couple of things that need to get lit up even
59  * in an auxiliary process.
60  */
61 
62  /*
63  * Create a PGPROC so we can use LWLocks and access shared memory.
64  */
66 
67  BaseInit();
68 
69  ProcSignalInit(false, 0);
70 
71  /*
72  * Auxiliary processes don't run transactions, but they may need a
73  * resource owner anyway to manage buffer pins acquired outside
74  * transactions (and, perhaps, other things in future).
75  */
77 
78 
79  /* Initialize backend status information */
80  pgstat_beinit();
82 
83  /* register a before-shutdown callback for LWLock cleanup */
85 
87 }
static void ShutdownAuxiliaryProcess(int code, Datum arg)
Definition: auxprocess.c:97
void pgstat_beinit(void)
void pgstat_bestart(void)
#define Assert(condition)
Definition: c.h:812
bool IsUnderPostmaster
Definition: globals.c:119
void before_shmem_exit(pg_on_exit_callback function, Datum arg)
Definition: ipc.c:337
MemoryContext PostmasterContext
Definition: mcxt.c:151
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:454
@ NormalProcessing
Definition: miscadmin.h:449
@ InitProcessing
Definition: miscadmin.h:448
#define GetProcessingMode()
Definition: miscadmin.h:458
#define SetProcessingMode(mode)
Definition: miscadmin.h:460
bool IgnoreSystemIndexes
Definition: miscinit.c:81
void BaseInit(void)
Definition: postinit.c:604
void ProcSignalInit(bool cancel_key_valid, int32 cancel_key)
Definition: procsignal.c:166
void init_ps_display(const char *fixed_part)
Definition: ps_status.c:267
void CreateAuxProcessResourceOwner(void)
Definition: resowner.c:982
void InitAuxiliaryProcess(void)
Definition: proc.c:561

References Assert, BaseInit(), before_shmem_exit(), CreateAuxProcessResourceOwner(), GetProcessingMode, IgnoreSystemIndexes, init_ps_display(), InitAuxiliaryProcess(), InitProcessing, IsUnderPostmaster, MemoryContextDelete(), NormalProcessing, pgstat_beinit(), pgstat_bestart(), PostmasterContext, ProcSignalInit(), SetProcessingMode, and ShutdownAuxiliaryProcess().

Referenced by BackgroundWriterMain(), CheckpointerMain(), PgArchiverMain(), StartupProcessMain(), WalReceiverMain(), WalSummarizerMain(), and WalWriterMain().

◆ ShutdownAuxiliaryProcess()

static void ShutdownAuxiliaryProcess ( int  code,
Datum  arg 
)
static

Definition at line 97 of file auxprocess.c.

98 {
102 }
bool ConditionVariableCancelSleep(void)
void LWLockReleaseAll(void)
Definition: lwlock.c:1876
static void pgstat_report_wait_end(void)
Definition: wait_event.h:101

References ConditionVariableCancelSleep(), LWLockReleaseAll(), and pgstat_report_wait_end().

Referenced by AuxiliaryProcessMainCommon().