From e747c5871855434570c7d3710b391b863d90f03a Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Sat, 27 Jun 1998 04:53:49 +0000
Subject: [PATCH] Fix for hang after postmaster restart.  Add new proc_exit and
 shmem_exit to replace exitpg().

---
 src/backend/bootstrap/bootstrap.c   |  14 ++--
 src/backend/commands/async.c        |   4 +-
 src/backend/libpq/pqcomm.c          |   4 +-
 src/backend/postmaster/postmaster.c |  20 +++---
 src/backend/storage/ipc/ipc.c       | 102 +++++++++++++++++-----------
 src/backend/storage/ipc/ipci.c      |   5 +-
 src/backend/storage/ipc/shmem.c     |   4 +-
 src/backend/storage/ipc/sinvaladt.c |   6 +-
 src/backend/storage/lmgr/lock.c     |  14 ++--
 src/backend/storage/lmgr/multi.c    |   9 +--
 src/backend/storage/lmgr/proc.c     |   6 +-
 src/backend/storage/smgr/smgr.c     |   4 +-
 src/backend/tcop/postgres.c         |  22 +++---
 src/backend/utils/error/elog.c      |   8 +--
 src/backend/utils/error/exc.c       |   4 +-
 src/backend/utils/init/miscinit.c   |  10 +--
 src/backend/utils/init/postinit.c   |   6 +-
 src/include/storage/ipc.h           |  11 +--
 18 files changed, 130 insertions(+), 123 deletions(-)

diff --git a/src/backend/bootstrap/bootstrap.c b/src/backend/bootstrap/bootstrap.c
index 85afd78746..acf461d162 100644
--- a/src/backend/bootstrap/bootstrap.c
+++ b/src/backend/bootstrap/bootstrap.c
@@ -7,7 +7,7 @@
  * Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/bootstrap/bootstrap.c,v 1.43 1998/06/15 19:28:04 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/bootstrap/bootstrap.c,v 1.44 1998/06/27 04:53:29 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -262,7 +262,7 @@ usage(void)
 	fprintf(stderr, "     O: set BootstrapProcessing mode\n");
 	fprintf(stderr, "     P portno: specify port number\n");
 
-	exitpg(1);
+	proc_exit(1);
 }
 
 
@@ -360,7 +360,7 @@ BootstrapMain(int argc, char *argv[])
 				"database system either by specifying the -D invocation "
 			 "option or by setting the PGDATA environment variable.\n\n",
 				argv[0]);
-		exitpg(1);
+		proc_exit(1);
 	}
 
 	if (dbName == NULL)
@@ -370,7 +370,7 @@ BootstrapMain(int argc, char *argv[])
 		{
 			fputs("bootstrap backend: failed, no db name specified\n", stderr);
 			fputs("          and no USER enviroment variable\n", stderr);
-			exitpg(1);
+			proc_exit(1);
 		}
 	}
 
@@ -381,7 +381,7 @@ BootstrapMain(int argc, char *argv[])
 	if (IsUnderPostmaster && portFd < 0)
 	{
 		fputs("backend: failed, no -P option with -postmaster opt.\n", stderr);
-		exitpg(1);
+		proc_exit(1);
 	}
 
 	/* ----------------
@@ -770,12 +770,12 @@ cleanup()
 	else
 	{
 		elog(FATAL, "Memory manager fault: cleanup called twice.\n", stderr);
-		exitpg(1);
+		proc_exit(1);
 	}
 	if (reldesc != (Relation) NULL)
 		heap_close(reldesc);
 	CommitTransactionCommand();
-	exitpg(Warnings);
+	proc_exit(Warnings);
 }
 
 /* ----------------
diff --git a/src/backend/commands/async.c b/src/backend/commands/async.c
index fcdda33305..b4b354cfc5 100644
--- a/src/backend/commands/async.c
+++ b/src/backend/commands/async.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/async.c,v 1.33 1998/06/15 19:28:11 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/async.c,v 1.34 1998/06/27 04:53:29 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -477,7 +477,7 @@ Async_Listen(char *relname, int pid)
 	 */
 	relnamei = malloc(NAMEDATALEN);		/* persists to process exit */
 	StrNCpy(relnamei, relname, NAMEDATALEN);
-	on_exitpg(Async_UnlistenOnExit, (caddr_t) relnamei);
+	on_shmem_exit(Async_UnlistenOnExit, (caddr_t) relnamei);
 }
 
 /*
diff --git a/src/backend/libpq/pqcomm.c b/src/backend/libpq/pqcomm.c
index 710fe8184b..a70bbc22e9 100644
--- a/src/backend/libpq/pqcomm.c
+++ b/src/backend/libpq/pqcomm.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/libpq/pqcomm.c,v 1.46 1998/06/21 16:39:10 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/libpq/pqcomm.c,v 1.47 1998/06/27 04:53:30 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -650,7 +650,7 @@ StreamServerPort(char *hostName, short portName, int *fdP)
 	}
 
 	if (family == AF_UNIX)
-		on_exitpg(StreamDoUnlink, NULL);
+		on_proc_exit(StreamDoUnlink, NULL);
 
 	listen(fd, SOMAXCONN);
 
diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 5c44655910..941d8ed119 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.89 1998/06/18 03:43:59 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.90 1998/06/27 04:53:31 momjian Exp $
  *
  * NOTES
  *
@@ -895,7 +895,7 @@ reset_shared(short port)
 static void
 pmdie(SIGNAL_ARGS)
 {
-	exitpg(0);
+	proc_exit(0);
 }
 
 /*
@@ -986,9 +986,9 @@ CleanupProc(int pid,
 	{
 		bp = (Backend *) DLE_VAL(curr);
 
-		/*
-		 * ----------------- SIGUSR1 is the special signal that sez exit
-		 * without exitpg and let the user know what's going on.
+		/* -----------------
+		 * SIGUSR1 is the special signal that says exit
+		 * without proc_exit and let the user know what's going on.
 		 * ProcSemaphoreKill() cleans up the backends semaphore.  If
 		 * SendStop is set (-s on command line), then we send a SIGSTOP so
 		 * that we can core dumps from all backends by hand.
@@ -1020,10 +1020,6 @@ CleanupProc(int pid,
 	}
 
 	/*
-	 * Quasi_exit means run all of the on_exitpg routines
-	 * but don't acutally call exit().  The on_exit list of routines to do
-	 * is also truncated.
-	 *
 	 * Nothing up my sleeve here, ActiveBackends means that since the last
 	 * time we recreated shared memory and sems another frontend has
 	 * requested and received a connection and I have forked off another
@@ -1036,7 +1032,7 @@ CleanupProc(int pid,
 		if (DebugLvl)
 			fprintf(stderr, "%s: CleanupProc: reinitializing shared memory and semaphores\n",
 					progname);
-		quasi_exitpg();
+		shmem_exit();
 		reset_shared(PostPortName);
 	}
 }
@@ -1230,7 +1226,7 @@ DoBackend(Port *port)
 	 *	Let's clean up ourselves as the postmaster child
 	 */
 	
-	clear_exitpg(); /* we don't want the postmaster's exitpg() handlers */
+	clear_proc_exit(); /* we don't want the postmaster's proc_exit() handlers */
 
 	/* ----------------
 	 *	register signal handlers.
@@ -1352,7 +1348,7 @@ ExitPostmaster(int status)
 		StreamClose(ServerSock_INET);
 	if (ServerSock_UNIX != INVALID_SOCK)
 		StreamClose(ServerSock_UNIX);
-	exitpg(status);
+	proc_exit(status);
 }
 
 static void
diff --git a/src/backend/storage/ipc/ipc.c b/src/backend/storage/ipc/ipc.c
index d301cdfe00..e1ef1119ef 100644
--- a/src/backend/storage/ipc/ipc.c
+++ b/src/backend/storage/ipc/ipc.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipc.c,v 1.26 1998/06/23 16:04:46 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipc.c,v 1.27 1998/06/27 04:53:34 momjian Exp $
  *
  * NOTES
  *
@@ -60,9 +60,9 @@ static struct ONEXIT
 {
 	void		(*function) ();
 	caddr_t		arg;
-}			onexit_list[MAX_ON_EXITS];
+}	on_proc_exit_list[MAX_ON_EXITS], on_shmem_exit_list[MAX_ON_EXITS];
 
-static int	onexit_index;
+static int	on_proc_exit_index, on_shmem_exit_index;
 static void IpcConfigTip(void);
 
 typedef struct _PrivateMemStruct
@@ -98,7 +98,7 @@ PrivateMemoryAttach(IpcMemoryId memid)
 
 
 /* ----------------------------------------------------------------
- *		exitpg
+ *		proc_exit
  *
  *		this function calls all the callbacks registered
  *		for it (to free resources) and then calls exit.
@@ -106,100 +106,124 @@ PrivateMemoryAttach(IpcMemoryId memid)
  *		-cim 2/6/90
  * ----------------------------------------------------------------
  */
-static int	exitpg_inprogress = 0;
+static int	proc_exit_inprogress = 0;
 
 void
-exitpg(int code)
+proc_exit(int code)
 {
 	int			i;
 
 	/* ----------------
-	 *	if exitpg_inprocess is true, then it means that we
+	 *	if proc_exit_inprocess is true, then it means that we
 	 *	are being invoked from within an on_exit() handler
 	 *	and so we return immediately to avoid recursion.
 	 * ----------------
 	 */
-	if (exitpg_inprogress)
+	if (proc_exit_inprogress)
 		return;
 
-	exitpg_inprogress = 1;
+	proc_exit_inprogress = 1;
 
+	/* do our shared memory exits first */
+	shmem_exit(code);
+	
 	/* ----------------
 	 *	call all the callbacks registered before calling exit().
 	 * ----------------
 	 */
-	for (i = onexit_index - 1; i >= 0; --i)
-		(*onexit_list[i].function) (code, onexit_list[i].arg);
+	for (i = on_proc_exit_index - 1; i >= 0; --i)
+		(*on_proc_exit_list[i].function) (code, on_proc_exit_list[i].arg);
 
 	exit(code);
 }
 
 /* ------------------
- * Run all of the on_exitpg routines but don't exit in the end.
+ * Run all of the on_shmem_exit routines but don't exit in the end.
  * This is used by the postmaster to re-initialize shared memory and
  * semaphores after a backend dies horribly
  * ------------------
  */
+static int	shmem_exit_inprogress = 0;
+
 void
-quasi_exitpg()
+shmem_exit(int code)
 {
 	int			i;
 
 	/* ----------------
-	 *	if exitpg_inprocess is true, then it means that we
+	 *	if shmem_exit_inprocess is true, then it means that we
 	 *	are being invoked from within an on_exit() handler
 	 *	and so we return immediately to avoid recursion.
 	 * ----------------
 	 */
-	if (exitpg_inprogress)
+	if (shmem_exit_inprogress)
 		return;
 
-	exitpg_inprogress = 1;
+	shmem_exit_inprogress = 1;
 
 	/* ----------------
 	 *	call all the callbacks registered before calling exit().
 	 * ----------------
 	 */
-	for (i = onexit_index - 1; i >= 0; --i)
-		/* Don't do StreamDoUnlink on quasi_exit */
-		if (onexit_list[i].function != StreamDoUnlink)
-			(*onexit_list[i].function) (0, onexit_list[i].arg);
+	for (i = on_shmem_exit_index - 1; i >= 0; --i)
+		(*on_shmem_exit_list[i].function) (code, on_shmem_exit_list[i].arg);
 
-	onexit_index = 0;
-	exitpg_inprogress = 0;
+	on_shmem_exit_index = 0;
+	shmem_exit_inprogress = 0;
 }
 
 /* ----------------------------------------------------------------
- *		on_exitpg
+ *		on_proc_exit
  *
  *		this function adds a callback function to the list of
- *		functions invoked by exitpg().	-cim 2/6/90
+ *		functions invoked by proc_exit().	-cim 2/6/90
  * ----------------------------------------------------------------
  */
 int
-on_exitpg(void (*function) (), caddr_t arg)
+on_proc_exit(void (*function) (), caddr_t arg)
 {
-	if (onexit_index >= MAX_ON_EXITS)
+	if (on_proc_exit_index >= MAX_ON_EXITS)
 		return (-1);
 
-	onexit_list[onexit_index].function = function;
-	onexit_list[onexit_index].arg = arg;
+	on_proc_exit_list[on_proc_exit_index].function = function;
+	on_proc_exit_list[on_proc_exit_index].arg = arg;
 
-	++onexit_index;
+	++on_proc_exit_index;
 
 	return (0);
 }
 
 /* ----------------------------------------------------------------
- *		clear_exitpg
+ *		on_shmem_exit
  *
- *		this function clears all exitpg() registered functions.
+ *		this function adds a callback function to the list of
+ *		functions invoked by shmem_exit().	-cim 2/6/90
+ * ----------------------------------------------------------------
+ */
+int
+on_shmem_exit(void (*function) (), caddr_t arg)
+{
+	if (on_shmem_exit_index >= MAX_ON_EXITS)
+		return (-1);
+
+	on_shmem_exit_list[on_shmem_exit_index].function = function;
+	on_shmem_exit_list[on_shmem_exit_index].arg = arg;
+
+	++on_shmem_exit_index;
+
+	return (0);
+}
+
+/* ----------------------------------------------------------------
+ *		clear_proc_exit
+ *
+ *		this function clears all proc_exit() registered functions.
  * ----------------------------------------------------------------
  */
 void
-clear_exitpg(void)
+clear_proc_exit(void)
 {
-	onexit_index = 0;
+	on_proc_exit_index = 0;
 }
 
 /****************************************************************************/
@@ -301,7 +325,7 @@ IpcSemaphoreCreate(IpcSemaphoreKey semKey,
 		{
 			perror("semget");
 			IpcConfigTip();
-			exitpg(3);
+			proc_exit(3);
 		}
 		for (i = 0; i < semNum; i++)
 			array[i] = semStartValue;
@@ -314,7 +338,7 @@ IpcSemaphoreCreate(IpcSemaphoreKey semKey,
 		}
 
 		if (removeOnExit)
-			on_exitpg(IPCPrivateSemaphoreKill, (caddr_t) semId);
+			on_shmem_exit(IPCPrivateSemaphoreKill, (caddr_t) semId);
 
 	}
 	else
@@ -418,7 +442,7 @@ IpcSemaphoreLock(IpcSemaphoreId semId, int sem, int lock)
 	{
 		perror("semop");
 		IpcConfigTip();
-		exitpg(255);
+		proc_exit(255);
 	}
 }
 
@@ -463,7 +487,7 @@ IpcSemaphoreUnlock(IpcSemaphoreId semId, int sem, int lock)
 	{
 		perror("semop");
 		IpcConfigTip();
-		exitpg(255);
+		proc_exit(255);
 	}
 }
 
@@ -517,7 +541,7 @@ IpcMemoryCreate(IpcMemoryKey memKey, uint32 size, int permission)
 	}
 
 	/* if (memKey == PrivateIPCKey) */
-	on_exitpg(IPCPrivateMemoryKill, (caddr_t) shmid);
+	on_shmem_exit(IPCPrivateMemoryKill, (caddr_t) shmid);
 
 	return (shmid);
 }
@@ -583,7 +607,7 @@ IpcMemoryAttach(IpcMemoryId memId)
 	}
 
 	if (!UsePrivateMemory)
-		on_exitpg(IpcMemoryDetach, (caddr_t) memAddress);
+		on_shmem_exit(IpcMemoryDetach, (caddr_t) memAddress);
 
 	return ((char *) memAddress);
 }
diff --git a/src/backend/storage/ipc/ipci.c b/src/backend/storage/ipc/ipci.c
index e8aabe5a74..4bcc15efd2 100644
--- a/src/backend/storage/ipc/ipci.c
+++ b/src/backend/storage/ipc/ipci.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipci.c,v 1.13 1998/06/26 19:57:48 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipci.c,v 1.14 1998/06/27 04:53:35 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -92,7 +92,6 @@ CreateSharedMemoryAndSemaphores(IPCKey key)
 	 * ----------------
 	 */
 	InitLocks();
-	InitMultiLevelLocks();
 	if (InitMultiLevelLocks() == INVALID_TABLEID)
 		elog(FATAL, "Couldn't create the lock table");
 
@@ -101,7 +100,7 @@ CreateSharedMemoryAndSemaphores(IPCKey key)
 	 * ----------------
 	 */
 	InitProcGlobal(key);
-	on_exitpg(ProcFreeAllSemaphores, NULL);
+	on_shmem_exit(ProcFreeAllSemaphores, NULL);
 
 	CreateSharedInvalidationState(key);
 }
diff --git a/src/backend/storage/ipc/shmem.c b/src/backend/storage/ipc/shmem.c
index 431edc6ff7..6bf0a500a3 100644
--- a/src/backend/storage/ipc/shmem.c
+++ b/src/backend/storage/ipc/shmem.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/shmem.c,v 1.22 1998/06/25 14:24:34 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/shmem.c,v 1.23 1998/06/27 04:53:36 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -524,7 +524,7 @@ ShmemInitStruct(char *name, unsigned long size, bool *foundPtr)
 	}
 	else
 	{
-		/* look it up in the bindint table */
+		/* look it up in the binding table */
 		result = (BindingEnt *)
 			hash_search(BindingTable, (char *) &item, HASH_ENTER, foundPtr);
 	}
diff --git a/src/backend/storage/ipc/sinvaladt.c b/src/backend/storage/ipc/sinvaladt.c
index bca6dcee16..b54f4dc221 100644
--- a/src/backend/storage/ipc/sinvaladt.c
+++ b/src/backend/storage/ipc/sinvaladt.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/sinvaladt.c,v 1.10 1998/06/18 04:20:34 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/sinvaladt.c,v 1.11 1998/06/27 04:53:36 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -100,7 +100,7 @@ SIBackendInit(SISeg *segInOutP)
 #endif							/* INVALIDDEBUG */
 
 	SISetActiveProcess(segInOutP, MyBackendId);
-	on_exitpg(CleanupInvalidationState, (caddr_t) segInOutP);
+	on_shmem_exit(CleanupInvalidationState, (caddr_t) segInOutP);
 	return 1;
 }
 
@@ -193,7 +193,7 @@ SISetDeadProcess(SISeg *segP, int backendId)
  * CleanupInvalidationState --
  * Note:
  *		This is a temporary hack.  ExitBackend should call this instead
- *		of exit (via on_exitpg).
+ *		of exit (via on_shmem_exit).
  */
 static void
 CleanupInvalidationState(int status,	/* XXX */
diff --git a/src/backend/storage/lmgr/lock.c b/src/backend/storage/lmgr/lock.c
index ab8b7b8258..191ee71f87 100644
--- a/src/backend/storage/lmgr/lock.c
+++ b/src/backend/storage/lmgr/lock.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lock.c,v 1.28 1998/06/26 01:58:45 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lock.c,v 1.29 1998/06/27 04:53:37 momjian Exp $
  *
  * NOTES
  *	  Outside modules can create a lock table and acquire/release
@@ -153,7 +153,7 @@ static LOCKTAB *AllTables[MAX_TABLES];
  * no zero-th table
  * -------------------
  */
-static int	NumTables = 1;
+static int	NumTables;
 
 /* -------------------
  * InitLocks -- Init the lock module.  Create a private data
@@ -242,14 +242,6 @@ LockTableInit(char *tabName,
 		return (INVALID_TABLEID);
 	}
 
-	if (NumTables > MAX_TABLES)
-	{
-		elog(NOTICE,
-			 "LockTableInit: system limit of MAX_TABLES (%d) lock tables",
-			 MAX_TABLES);
-		return (INVALID_TABLEID);
-	}
-
 	/* allocate a string for the binding table lookup */
 	shmemName = (char *) palloc((unsigned) (strlen(tabName) + 32));
 	if (!shmemName)
@@ -289,6 +281,8 @@ LockTableInit(char *tabName,
 		status = FALSE;
 	}
 
+	NumTables = 1;
+
 	/* ----------------
 	 * we're first - initialize
 	 * ----------------
diff --git a/src/backend/storage/lmgr/multi.c b/src/backend/storage/lmgr/multi.c
index 135996432a..19682ffe95 100644
--- a/src/backend/storage/lmgr/multi.c
+++ b/src/backend/storage/lmgr/multi.c
@@ -12,7 +12,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/lmgr/Attic/multi.c,v 1.16 1998/06/26 19:57:49 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/lmgr/Attic/multi.c,v 1.17 1998/06/27 04:53:38 momjian Exp $
  *
  * NOTES:
  *	 (1) The lock.c module assumes that the caller here is doing
@@ -89,13 +89,6 @@ InitMultiLevelLocks()
 {
 	int			tableId;
 
-	/* -----------------------
-	 * If we're already initialized just return the table id.
-	 * -----------------------
-	 */
-	if (MultiTableId)
-		return MultiTableId;
-
 	tableId = LockTableInit("LockTable", MultiConflicts, MultiPrios, 5);
 	MultiTableId = tableId;
 	if (!(MultiTableId))
diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index d6ef6f9e7a..559542ed8a 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.36 1998/06/19 02:55:11 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.37 1998/06/27 04:53:39 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -46,7 +46,7 @@
  *		This is so that we can support more backends. (system-wide semaphore
  *		sets run out pretty fast.)				  -ay 4/95
  *
- * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.36 1998/06/19 02:55:11 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.37 1998/06/27 04:53:39 momjian Exp $
  */
 #include <sys/time.h>
 #include <unistd.h>
@@ -274,7 +274,7 @@ InitProcess(IPCKey key)
 	MyProc->errType = NO_ERROR;
 	SHMQueueElemInit(&(MyProc->links));
 
-	on_exitpg(ProcKill, (caddr_t) MyProcPid);
+	on_shmem_exit(ProcKill, (caddr_t) MyProcPid);
 
 	ProcInitialized = TRUE;
 }
diff --git a/src/backend/storage/smgr/smgr.c b/src/backend/storage/smgr/smgr.c
index 4960eebe16..f96e7aa098 100644
--- a/src/backend/storage/smgr/smgr.c
+++ b/src/backend/storage/smgr/smgr.c
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/smgr/smgr.c,v 1.16 1998/06/23 15:35:45 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/smgr/smgr.c,v 1.17 1998/06/27 04:53:40 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -100,7 +100,7 @@ smgrinit()
 	}
 
 	/* register the shutdown proc */
-	on_exitpg(smgrshutdown, NULL);
+	on_proc_exit(smgrshutdown, NULL);
 
 	return (SM_SUCCESS);
 }
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index 2c457bf05e..97ac571d2c 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.77 1998/06/16 07:29:30 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.78 1998/06/27 04:53:43 momjian Exp $
  *
  * NOTES
  *	  this is the "main" module of the postgres backend and
@@ -263,7 +263,7 @@ InteractiveBackend(char *inBuf)
 			if (!Quiet)
 				puts("EOF");
 			IsEmptyQuery = true;
-			exitpg(0);
+			proc_exit(0);
 		}
 
 		/* ----------------
@@ -312,7 +312,7 @@ SocketBackend(char *inBuf)
 		 *	when front-end applications quits/dies
 		 * ------------
 		 */
-		exitpg(0);
+		proc_exit(0);
 	}
 
 	switch (*qtype)
@@ -1176,7 +1176,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
 	if (errs || argc - optind > 1)
 	{
 		usage(argv[0]);
-		exitpg(1);
+		proc_exit(1);
 	}
 	else if (argc - optind == 1)
 		DBName = argv[optind];
@@ -1184,14 +1184,14 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
 	{
 		fprintf(stderr, "%s: USER undefined and no database specified\n",
 				argv[0]);
-		exitpg(1);
+		proc_exit(1);
 	}
 
 	if (ShowStats &&
 		(ShowParserStats || ShowPlannerStats || ShowExecutorStats))
 	{
 		fprintf(stderr, "-s can not be used together with -t.\n");
-		exitpg(1);
+		proc_exit(1);
 	}
 
 	if (!DataDir)
@@ -1201,7 +1201,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
 				"database system either by specifying the -D invocation "
 			 "option or by setting the PGDATA environment variable.\n\n",
 				argv[0]);
-		exitpg(1);
+		proc_exit(1);
 	}
 
 	Noversion = flagC;
@@ -1325,7 +1325,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
 	if (!IsUnderPostmaster)
 	{
 		puts("\nPOSTGRES backend interactive interface");
-		puts("$Revision: 1.77 $ $Date: 1998/06/16 07:29:30 $");
+		puts("$Revision: 1.78 $ $Date: 1998/06/27 04:53:43 $");
 	}
 
 	/* ----------------
@@ -1335,7 +1335,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
 	 * ----------------
 	 */
 	if (!TransactionFlushEnabled())
-		on_exitpg(FlushBufferPool, NULL);
+		on_shmem_exit(FlushBufferPool, NULL);
 
 	for (;;)
 	{
@@ -1427,7 +1427,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
 				 */
 			case 'X':
 				pq_close();
-				exitpg(0);
+				proc_exit(0);
 				break;
 
 			default:
@@ -1458,7 +1458,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
 		}
 
 	}							/* infinite for-loop */
-	exitpg(0);
+	proc_exit(0);
 	return 1;
 }
 
diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c
index 88ca05a1b2..04fd4d0c03 100644
--- a/src/backend/utils/error/elog.c
+++ b/src/backend/utils/error/elog.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/error/elog.c,v 1.29 1998/06/15 19:29:41 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/error/elog.c,v 1.30 1998/06/27 04:53:45 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -142,7 +142,7 @@ elog(int lev, const char *fmt,...)
 			write(open("/dev/console", O_WRONLY, 0666), line, len);
 			fflush(stdout);
 			fflush(stderr);
-			exitpg(lev);
+			proc_exit(lev);
 		}
 		fsync(Err_file);
 	}
@@ -201,14 +201,14 @@ elog(int lev, const char *fmt,...)
 		fflush(stderr);
 		ProcReleaseSpins(NULL); /* get rid of spinlocks we hold */
 		ProcReleaseLocks();		/* get rid of real locks we hold */
-		exitpg(0);
+		proc_exit(0);
 	}
 
 	if (lev > FATAL)
 	{
 		fflush(stdout);
 		fflush(stderr);
-		exitpg(lev);
+		proc_exit(lev);
 	}
 }
 
diff --git a/src/backend/utils/error/exc.c b/src/backend/utils/error/exc.c
index ee79fa9814..70af54af12 100644
--- a/src/backend/utils/error/exc.c
+++ b/src/backend/utils/error/exc.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/error/Attic/exc.c,v 1.20 1998/02/26 04:37:35 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/error/Attic/exc.c,v 1.21 1998/06/27 04:53:45 momjian Exp $
  *
  * NOTE
  *	  XXX this code needs improvement--check for state violations and
@@ -78,7 +78,7 @@ EnableExceptionHandling(bool on)
 	if (on == ExceptionHandlingEnabled)
 	{
 		/* XXX add logging of failed state */
-		exitpg(255);
+		proc_exit(255);
 		/* ExitPostgres(FatalExitStatus); */
 	}
 
diff --git a/src/backend/utils/init/miscinit.c b/src/backend/utils/init/miscinit.c
index 7f02bec611..da0f412fea 100644
--- a/src/backend/utils/init/miscinit.c
+++ b/src/backend/utils/init/miscinit.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.15 1998/05/29 17:00:19 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.16 1998/06/27 04:53:47 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -84,7 +84,7 @@ unsigned char RecodeBackTable[128];
 void
 ExitPostgres(ExitStatus status)
 {
-	exitpg(status);
+	proc_exit(status);
 }
 
 /*
@@ -111,7 +111,7 @@ AbortPostgres()
 	if (PointerIsValid(abortValue) && abortValue[0] != '\0')
 		abort();
 	else
-		exitpg(FatalExitStatus);
+		proc_exit(FatalExitStatus);
 }
 
 #endif
@@ -125,7 +125,7 @@ StatusBackendExit(int status)
 {
 	/* someday, do some real cleanup and then call the LISP exit */
 	/* someday, call StatusPostmasterExit if running without postmaster */
-	exitpg(status);
+	proc_exit(status);
 }
 
 /* ----------------
@@ -136,7 +136,7 @@ void
 StatusPostmasterExit(int status)
 {
 	/* someday, do some real cleanup and then call the LISP exit */
-	exitpg(status);
+	proc_exit(status);
 }
 
 /* ----------------------------------------------------------------
diff --git a/src/backend/utils/init/postinit.c b/src/backend/utils/init/postinit.c
index 650068d22d..36de317266 100644
--- a/src/backend/utils/init/postinit.c
+++ b/src/backend/utils/init/postinit.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.29 1998/06/15 19:29:49 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.30 1998/06/27 04:53:48 momjian Exp $
  *
  * NOTES
  *		InitPostgres() is the function called from PostgresMain
@@ -481,7 +481,7 @@ InitPostgres(char *name)		/* database name */
 	InitLocalBuffer();
 
 	if (!TransactionFlushEnabled())
-		on_exitpg(FlushBufferPool, (caddr_t) NULL);
+		on_shmem_exit(FlushBufferPool, (caddr_t) NULL);
 
 	/* ----------------
 	 *	initialize the database id used for system caches and lock tables
@@ -601,7 +601,7 @@ InitPostgres(char *name)		/* database name */
 	 * ----------------
 	 */
 	PostgresIsInitialized = true;
-/*	  on_exitpg(DestroyLocalRelList, (caddr_t) NULL); */
+/*	  on_shmem_exit(DestroyLocalRelList, (caddr_t) NULL); */
 
 	/* ----------------
 	 *	Done with "InitPostgres", now change to NormalProcessing unless
diff --git a/src/include/storage/ipc.h b/src/include/storage/ipc.h
index 1327b2d170..778c54e207 100644
--- a/src/include/storage/ipc.h
+++ b/src/include/storage/ipc.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: ipc.h,v 1.26 1998/06/23 15:35:48 momjian Exp $
+ * $Id: ipc.h,v 1.27 1998/06/27 04:53:49 momjian Exp $
  *
  * NOTES
  *	  This file is very architecture-specific.	This stuff should actually
@@ -71,10 +71,11 @@ typedef int IpcMemoryId;
 
 
 /* ipc.c */
-extern void exitpg(int code);
-extern void quasi_exitpg(void);
-extern int on_exitpg(void (*function) (), caddr_t arg);
-extern void clear_exitpg(void);
+extern void proc_exit(int code);
+extern void shmem_exit(int code);
+extern int on_shmem_exit(void (*function) (), caddr_t arg);
+extern int on_proc_exit(void (*function) (), caddr_t arg);
+extern void clear_proc_exit(void);
 
 extern IpcSemaphoreId
 IpcSemaphoreCreate(IpcSemaphoreKey semKey,