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-rw-r--r--src/backend/postmaster/autovacuum.c49
-rw-r--r--src/backend/postmaster/bgworker.c18
-rw-r--r--src/backend/postmaster/bgwriter.c12
-rw-r--r--src/backend/postmaster/checkpointer.c11
-rw-r--r--src/backend/postmaster/pgarch.c20
-rw-r--r--src/backend/postmaster/pgstat.c22
-rw-r--r--src/backend/postmaster/postmaster.c60
-rw-r--r--src/backend/postmaster/startup.c9
-rw-r--r--src/backend/postmaster/syslogger.c22
-rw-r--r--src/backend/postmaster/walwriter.c13
10 files changed, 21 insertions, 215 deletions
diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c
index 062b1209051..a26eee25d46 100644
--- a/src/backend/postmaster/autovacuum.c
+++ b/src/backend/postmaster/autovacuum.c
@@ -64,7 +64,6 @@
#include <signal.h>
#include <sys/types.h>
#include <sys/time.h>
-#include <time.h>
#include <unistd.h>
#include "access/heapam.h"
@@ -383,12 +382,11 @@ StartAutoVacLauncher(void)
#ifndef EXEC_BACKEND
case 0:
/* in postmaster child ... */
+ InitPostmasterChild();
+
/* Close the postmaster's sockets */
ClosePostmasterPorts(false);
- /* Lose the postmaster's on-exit routines */
- on_exit_reset();
-
AutoVacLauncherMain(0, NULL);
break;
#endif
@@ -408,16 +406,8 @@ AutoVacLauncherMain(int argc, char *argv[])
{
sigjmp_buf local_sigjmp_buf;
- /* we are a postmaster subprocess now */
- IsUnderPostmaster = true;
am_autovacuum_launcher = true;
- /* reset MyProcPid */
- MyProcPid = getpid();
-
- /* record Start Time for logging */
- MyStartTime = time(NULL);
-
/* Identify myself via ps */
init_ps_display("autovacuum launcher process", "", "", "");
@@ -430,17 +420,6 @@ AutoVacLauncherMain(int argc, char *argv[])
SetProcessingMode(InitProcessing);
/*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too. (autovacuum probably never has any
- * child processes, but for consistency we make all postmaster child
- * processes do this.)
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
-
- /*
* Set up signal handlers. We operate on databases much like a regular
* backend, so we use the same signal handling. See equivalent code in
* tcop/postgres.c.
@@ -1455,12 +1434,11 @@ StartAutoVacWorker(void)
#ifndef EXEC_BACKEND
case 0:
/* in postmaster child ... */
+ InitPostmasterChild();
+
/* Close the postmaster's sockets */
ClosePostmasterPorts(false);
- /* Lose the postmaster's on-exit routines */
- on_exit_reset();
-
AutoVacWorkerMain(0, NULL);
break;
#endif
@@ -1481,33 +1459,14 @@ AutoVacWorkerMain(int argc, char *argv[])
sigjmp_buf local_sigjmp_buf;
Oid dbid;
- /* we are a postmaster subprocess now */
- IsUnderPostmaster = true;
am_autovacuum_worker = true;
- /* reset MyProcPid */
- MyProcPid = getpid();
-
- /* record Start Time for logging */
- MyStartTime = time(NULL);
-
/* Identify myself via ps */
init_ps_display("autovacuum worker process", "", "", "");
SetProcessingMode(InitProcessing);
/*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too. (autovacuum probably never has any
- * child processes, but for consistency we make all postmaster child
- * processes do this.)
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
-
- /*
* Set up signal handlers. We operate on databases much like a regular
* backend, so we use the same signal handling. See equivalent code in
* tcop/postgres.c.
diff --git a/src/backend/postmaster/bgworker.c b/src/backend/postmaster/bgworker.c
index 8a7637baec9..6673f5ba622 100644
--- a/src/backend/postmaster/bgworker.c
+++ b/src/backend/postmaster/bgworker.c
@@ -13,7 +13,6 @@
#include "postgres.h"
#include <unistd.h>
-#include <time.h>
#include "miscadmin.h"
#include "libpq/pqsignal.h"
@@ -556,16 +555,8 @@ StartBackgroundWorker(void)
if (worker == NULL)
elog(FATAL, "unable to find bgworker entry");
- /* we are a postmaster subprocess now */
- IsUnderPostmaster = true;
IsBackgroundWorker = true;
- /* reset MyProcPid */
- MyProcPid = getpid();
-
- /* record Start Time for logging */
- MyStartTime = time(NULL);
-
/* Identify myself via ps */
snprintf(buf, MAXPGPATH, "bgworker: %s", worker->bgw_name);
init_ps_display(buf, "", "", "");
@@ -591,15 +582,6 @@ StartBackgroundWorker(void)
pg_usleep(PostAuthDelay * 1000000L);
/*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too.
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
-
- /*
* Set up signal handlers.
*/
if (worker->bgw_flags & BGWORKER_BACKEND_DATABASE_CONNECTION)
diff --git a/src/backend/postmaster/bgwriter.c b/src/backend/postmaster/bgwriter.c
index 872c23110ae..f138eb7473b 100644
--- a/src/backend/postmaster/bgwriter.c
+++ b/src/backend/postmaster/bgwriter.c
@@ -36,7 +36,6 @@
#include <signal.h>
#include <sys/time.h>
-#include <time.h>
#include <unistd.h>
#include "access/xlog.h"
@@ -114,17 +113,6 @@ BackgroundWriterMain(void)
bool prev_hibernate;
/*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too. (bgwriter probably never has any
- * child processes, but for consistency we make all postmaster child
- * processes do this.)
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
-
- /*
* Properly accept or ignore signals the postmaster might send us.
*
* bgwriter doesn't participate in ProcSignal signalling, but a SIGUSR1
diff --git a/src/backend/postmaster/checkpointer.c b/src/backend/postmaster/checkpointer.c
index 4d1ba40ec88..3c9c216c6f1 100644
--- a/src/backend/postmaster/checkpointer.c
+++ b/src/backend/postmaster/checkpointer.c
@@ -197,17 +197,6 @@ CheckpointerMain(void)
CheckpointerShmem->checkpointer_pid = MyProcPid;
/*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too. (checkpointer probably never has
- * any child processes, but for consistency we make all postmaster child
- * processes do this.)
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
-
- /*
* Properly accept or ignore signals the postmaster might send us
*
* Note: we deliberately ignore SIGTERM, because during a standard Unix
diff --git a/src/backend/postmaster/pgarch.c b/src/backend/postmaster/pgarch.c
index 75e7e1b2903..78dec3a4c6f 100644
--- a/src/backend/postmaster/pgarch.c
+++ b/src/backend/postmaster/pgarch.c
@@ -157,12 +157,11 @@ pgarch_start(void)
#ifndef EXEC_BACKEND
case 0:
/* in postmaster child ... */
+ InitPostmasterChild();
+
/* Close the postmaster's sockets */
ClosePostmasterPorts(false);
- /* Lose the postmaster's on-exit routines */
- on_exit_reset();
-
/* Drop our connection to postmaster's shared memory, as well */
dsm_detach_all();
PGSharedMemoryDetach();
@@ -221,21 +220,6 @@ pgarch_forkexec(void)
NON_EXEC_STATIC void
PgArchiverMain(int argc, char *argv[])
{
- IsUnderPostmaster = true; /* we are a postmaster subprocess now */
-
- MyProcPid = getpid(); /* reset MyProcPid */
-
- MyStartTime = time(NULL); /* record Start Time for logging */
-
- /*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too.
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
-
InitializeLatchSupport(); /* needed for latch waits */
InitLatch(&mainloop_latch); /* initialize latch used in main loop */
diff --git a/src/backend/postmaster/pgstat.c b/src/backend/postmaster/pgstat.c
index ea3bd4b3e88..fa87660baee 100644
--- a/src/backend/postmaster/pgstat.c
+++ b/src/backend/postmaster/pgstat.c
@@ -695,12 +695,11 @@ pgstat_start(void)
#ifndef EXEC_BACKEND
case 0:
/* in postmaster child ... */
+ InitPostmasterChild();
+
/* Close the postmaster's sockets */
ClosePostmasterPorts(false);
- /* Lose the postmaster's on-exit routines */
- on_exit_reset();
-
/* Drop our connection to postmaster's shared memory, as well */
dsm_detach_all();
PGSharedMemoryDetach();
@@ -3152,23 +3151,6 @@ PgstatCollectorMain(int argc, char *argv[])
PgStat_Msg msg;
int wr;
- IsUnderPostmaster = true; /* we are a postmaster subprocess now */
-
- MyProcPid = getpid(); /* reset MyProcPid */
-
- MyStartTime = time(NULL); /* record Start Time for logging */
-
- /*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too. (pgstat probably never has any
- * child processes, but for consistency we make all postmaster child
- * processes do this.)
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
-
InitializeLatchSupport(); /* needed for latch waits */
/* Initialize private latch for use by signal handlers */
diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 8570e75d8a6..fe6316ecbe9 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -3811,19 +3811,8 @@ BackendStartup(Port *port)
{
free(bn);
- /*
- * Let's clean up ourselves as the postmaster child, and close the
- * postmaster's listen sockets. (In EXEC_BACKEND case this is all
- * done in SubPostmasterMain.)
- */
- IsUnderPostmaster = true; /* we are a postmaster subprocess now */
-
- MyProcPid = getpid(); /* reset MyProcPid */
-
- MyStartTime = time(NULL);
-
- /* We don't want the postmaster's proc_exit() handlers */
- on_exit_reset();
+ /* Detangle from postmaster */
+ InitPostmasterChild();
/* Close the postmaster's sockets */
ClosePostmasterPorts(false);
@@ -3954,16 +3943,6 @@ BackendInitialize(Port *port)
whereToSendOutput = DestRemote; /* now safe to ereport to client */
/*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too. (We do this now on the off chance
- * that something might spawn a child process during authentication.)
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
-
- /*
* We arrange for a simple exit(1) if we receive SIGTERM or SIGQUIT or
* timeout while trying to collect the startup packet. Otherwise the
* postmaster cannot shutdown the database FAST or IMMED cleanly if a
@@ -4515,30 +4494,13 @@ SubPostmasterMain(int argc, char *argv[])
{
Port port;
- /* Do this sooner rather than later... */
- IsUnderPostmaster = true; /* we are a postmaster subprocess now */
-
- MyProcPid = getpid(); /* reset MyProcPid */
-
- MyStartTime = time(NULL);
-
- /*
- * make sure stderr is in binary mode before anything can possibly be
- * written to it, in case it's actually the syslogger pipe, so the pipe
- * chunking protocol isn't disturbed. Non-logpipe data gets translated on
- * redirection (e.g. via pg_ctl -l) anyway.
- */
-#ifdef WIN32
- _setmode(fileno(stderr), _O_BINARY);
-#endif
-
- /* Lose the postmaster's on-exit routines (really a no-op) */
- on_exit_reset();
-
/* In EXEC_BACKEND case we will not have inherited these settings */
IsPostmasterEnvironment = true;
whereToSendOutput = DestNone;
+ /* Setup as postmaster child */
+ InitPostmasterChild();
+
/* Setup essential subsystems (to ensure elog() behaves sanely) */
InitializeGUCOptions();
@@ -4718,6 +4680,8 @@ SubPostmasterMain(int argc, char *argv[])
/* do this as early as possible; in particular, before InitProcess() */
IsBackgroundWorker = true;
+ InitPostmasterChild();
+
/* Close the postmaster's sockets */
ClosePostmasterPorts(false);
@@ -5138,14 +5102,11 @@ StartChildProcess(AuxProcType type)
if (pid == 0) /* child */
{
- IsUnderPostmaster = true; /* we are a postmaster subprocess now */
+ InitPostmasterChild();
/* Close the postmaster's sockets */
ClosePostmasterPorts(false);
- /* Lose the postmaster's on-exit routines and port connections */
- on_exit_reset();
-
/* Release postmaster's working memory context */
MemoryContextSwitchTo(TopMemoryContext);
MemoryContextDelete(PostmasterContext);
@@ -5424,12 +5385,11 @@ do_start_bgworker(RegisteredBgWorker *rw)
#ifndef EXEC_BACKEND
case 0:
/* in postmaster child ... */
+ InitPostmasterChild();
+
/* Close the postmaster's sockets */
ClosePostmasterPorts(false);
- /* Lose the postmaster's on-exit routines */
- on_exit_reset();
-
/* Do NOT release postmaster's working memory context */
MyBgworkerEntry = &rw->rw_worker;
diff --git a/src/backend/postmaster/startup.c b/src/backend/postmaster/startup.c
index 72501e07f31..581837a1567 100644
--- a/src/backend/postmaster/startup.c
+++ b/src/backend/postmaster/startup.c
@@ -178,15 +178,6 @@ void
StartupProcessMain(void)
{
/*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too.
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
-
- /*
* Properly accept or ignore signals the postmaster might send us.
*/
pqsignal(SIGHUP, StartupProcSigHupHandler); /* reload config file */
diff --git a/src/backend/postmaster/syslogger.c b/src/backend/postmaster/syslogger.c
index c1b64ac7513..d127fb57711 100644
--- a/src/backend/postmaster/syslogger.c
+++ b/src/backend/postmaster/syslogger.c
@@ -164,11 +164,6 @@ SysLoggerMain(int argc, char *argv[])
int currentLogRotationAge;
pg_time_t now;
- IsUnderPostmaster = true; /* we are a postmaster subprocess now */
-
- MyProcPid = getpid(); /* reset MyProcPid */
-
- MyStartTime = time(NULL); /* set our start time in case we call elog */
now = MyStartTime;
#ifdef EXEC_BACKEND
@@ -236,18 +231,8 @@ SysLoggerMain(int argc, char *argv[])
syslogPipe[1] = 0;
#endif
- /*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too. (syslogger probably never has any
- * child processes, but for consistency we make all postmaster child
- * processes do this.)
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
+ InitializeLatchSupport(); /* needed for latch waits */
- InitializeLatchSupport(); /* needed for latch waits */
/* Initialize private latch for use by signal handlers */
InitLatch(&sysLoggerLatch);
@@ -609,12 +594,11 @@ SysLogger_Start(void)
#ifndef EXEC_BACKEND
case 0:
/* in postmaster child ... */
+ InitPostmasterChild();
+
/* Close the postmaster's sockets */
ClosePostmasterPorts(true);
- /* Lose the postmaster's on-exit routines */
- on_exit_reset();
-
/* Drop our connection to postmaster's shared memory, as well */
dsm_detach_all();
PGSharedMemoryDetach();
diff --git a/src/backend/postmaster/walwriter.c b/src/backend/postmaster/walwriter.c
index 2101b45c1a3..044c30665e7 100644
--- a/src/backend/postmaster/walwriter.c
+++ b/src/backend/postmaster/walwriter.c
@@ -42,8 +42,6 @@
#include "postgres.h"
#include <signal.h>
-#include <sys/time.h>
-#include <time.h>
#include <unistd.h>
#include "access/xlog.h"
@@ -102,17 +100,6 @@ WalWriterMain(void)
bool hibernating;
/*
- * If possible, make this process a group leader, so that the postmaster
- * can signal any child processes too. (walwriter probably never has any
- * child processes, but for consistency we make all postmaster child
- * processes do this.)
- */
-#ifdef HAVE_SETSID
- if (setsid() < 0)
- elog(FATAL, "setsid() failed: %m");
-#endif
-
- /*
* Properly accept or ignore signals the postmaster might send us
*
* We have no particular use for SIGINT at the moment, but seems
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-07 09:19:34 +0000