XLOG (also known as WAL -:)) Bootstrap/Startup/Shutdown.

First step in cleaning up backend initialization code.
Fix for FATAL: now FATAL is ERROR + exit.

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 1.68 1999/09/27 20:26:58 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/bootstrap/bootstrap.c,v 1.69 1999/10/06 21:58:02 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -39,6 +39,14 @@
 #define ALLOC(t, c)		(t *)calloc((unsigned)(c), sizeof(t))
 #define FIRST_TYPE_OID 16		/* OID of the first type */
 
+extern void		BaseInit(void);
+extern void		StartupXLOG(void);
+extern void		ShutdownXLOG(void);
+extern void		BootStrapXLOG(void);
+
+extern char		XLogDir[];
+extern char		ControlFilePath[];
+
 extern int	Int_yyparse(void);
 static hashnode *AddStr(char *str, int strlength, int mderef);
 static Form_pg_attribute AllocateAttribute(void);
@@ -218,22 +226,13 @@ BootstrapMain(int argc, char *argv[])
  */
 {
 	int			i;
-	int			portFd = -1;
 	char	   *dbName;
 	int			flag;
-	int			override = 1;	/* use BootstrapProcessing or
-								 * InitProcessing mode */
+	bool		xloginit = false;
 
 	extern int	optind;
 	extern char *optarg;
 
-	/* ----------------
-	 *	initialize signal handlers
-	 * ----------------
-	 */
-	pqsignal(SIGINT, (sig_func) die);
-	pqsignal(SIGHUP, (sig_func) die);
-	pqsignal(SIGTERM, (sig_func) die);
 
 	/* --------------------
 	 *	initialize globals
@@ -252,8 +251,9 @@ BootstrapMain(int argc, char *argv[])
 	Noversion = false;
 	dbName = NULL;
 	DataDir = getenv("PGDATA"); /* Null if no PGDATA variable */
+	IsUnderPostmaster = false;
 
-	while ((flag = getopt(argc, argv, "D:dCOQP:F")) != EOF)
+	while ((flag = getopt(argc, argv, "D:dCQxpB:F")) != EOF)
 	{
 		switch (flag)
 		{
@@ -270,14 +270,17 @@ BootstrapMain(int argc, char *argv[])
 			case 'F':
 				disableFsync = true;
 				break;
-			case 'O':
-				override = true;
-				break;
 			case 'Q':
 				Quiet = true;
 				break;
-			case 'P':			/* specify port */
-				portFd = atoi(optarg);
+			case 'x':
+				xloginit = true;
+				break;
+			case 'p':
+				IsUnderPostmaster = true;
+				break;
+			case 'B':
+				NBuffers = atoi(optarg);
 				break;
 			default:
 				usage();
@@ -290,6 +293,8 @@ BootstrapMain(int argc, char *argv[])
 	else if (argc - optind == 1)
 		dbName = argv[optind];
 
+	SetProcessingMode(BootstrapProcessing);
+
 	if (!DataDir)
 	{
 		fprintf(stderr, "%s does not know where to find the database system "
@@ -311,24 +316,50 @@ BootstrapMain(int argc, char *argv[])
 		}
 	}
 
-	/* ----------------
-	 *	initialize input fd
-	 * ----------------
+	BaseInit();
+
+	if (!IsUnderPostmaster)
+	{
+		pqsignal(SIGINT, (sig_func) die);
+		pqsignal(SIGHUP, (sig_func) die);
+		pqsignal(SIGTERM, (sig_func) die);
+	}
+
+	/*
+	 * Bootstrap under Postmaster means two things:
+	 * (xloginit) ? StartupXLOG : ShutdownXLOG
+	 *
+	 * If !under Postmaster and xloginit then BootStrapXLOG.
 	 */
-	if (IsUnderPostmaster && portFd < 0)
+	if (IsUnderPostmaster || xloginit)
 	{
-		fputs("backend: failed, no -P option with -postmaster opt.\n", stderr);
-		proc_exit(1);
+		sprintf(XLogDir, "%s%cpg_xlog", DataDir, SEP_CHAR);
+		sprintf(ControlFilePath, "%s%cpg_control", DataDir, SEP_CHAR);
 	}
 
-	/* ----------------
+	if (IsUnderPostmaster && xloginit)
+	{
+		StartupXLOG();
+		proc_exit(0);
+	}
+
+	if (!IsUnderPostmaster && xloginit)
+	{
+		BootStrapXLOG();
+	}
+
+	/*
 	 * backend initialization
-	 * ----------------
 	 */
-	SetProcessingMode((override) ? BootstrapProcessing : InitProcessing);
 	InitPostgres(dbName);
 	LockDisable(true);
 
+	if (IsUnderPostmaster && !xloginit)
+	{
+		ShutdownXLOG();
+		proc_exit(0);
+	}
+
 	for (i = 0; i < MAXATTR; i++)
 	{
 		attrtypes[i] = (Form_pg_attribute) NULL;

src/backend/storage/buffer/buf_init.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/buffer/buf_init.c,v 1.30 1999/09/24 00:24:29 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/buffer/buf_init.c,v 1.31 1999/10/06 21:58:04 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -230,16 +230,18 @@ InitBufferPool(IPCKey key)
 
 #ifndef HAS_TEST_AND_SET
 	{
-		int			status;
 		extern IpcSemaphoreId WaitIOSemId;
 		extern IpcSemaphoreId WaitCLSemId;
 
 		WaitIOSemId = IpcSemaphoreCreate(IPCKeyGetWaitIOSemaphoreKey(key),
-										 1, IPCProtection, 0, 1, &status);
+										 1, IPCProtection, 0, 1);
+		if (WaitIOSemId < 0)
+			elog(FATAL, "InitBufferPool: IpcSemaphoreCreate(WaitIOSemId) failed");
 		WaitCLSemId = IpcSemaphoreCreate(IPCKeyGetWaitCLSemaphoreKey(key),
 										 1, IPCProtection,
-										 IpcSemaphoreDefaultStartValue,
-										 1, &status);
+										 IpcSemaphoreDefaultStartValue, 1);
+		if (WaitCLSemId < 0)
+			elog(FATAL, "InitBufferPool: IpcSemaphoreCreate(WaitCLSemId) failed");
 	}
 #endif
 	PrivateRefCount = (long *) calloc(NBuffers, sizeof(long));

src/backend/storage/ipc/ipc.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipc.c,v 1.38 1999/07/17 20:17:43 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipc.c,v 1.39 1999/10/06 21:58:06 vadim Exp $
  *
  * NOTES
  *
@@ -284,18 +284,6 @@ IPCPrivateMemoryKill(int status,
 	}
 }
 
-
-/****************************************************************************/
-/*	 IpcSemaphoreCreate(semKey, semNum, permission, semStartValue)			*/
-/*																			*/
-/*	  - returns a semaphore identifier:										*/
-/*																			*/
-/* if key doesn't exist: return a new id,      status:= IpcSemIdNotExist    */
-/* if key exists:		 return the old id,    status:= IpcSemIdExist		*/
-/* if semNum > MAX :	 return # of argument, status:=IpcInvalidArgument	*/
-/*																			*/
-/****************************************************************************/
-
 /*
  * Note:
  * XXX	This should be split into two different calls.	One should
@@ -312,8 +300,7 @@ IpcSemaphoreCreate(IpcSemaphoreKey semKey,
 				   int semNum,
 				   int permission,
 				   int semStartValue,
-				   int removeOnExit,
-				   int *status)
+				   int removeOnExit)
 {
 	int			i;
 	int			errStatus;
@@ -321,20 +308,14 @@ IpcSemaphoreCreate(IpcSemaphoreKey semKey,
 	u_short		array[IPC_NMAXSEM];
 	union semun semun;
 
-	/* get a semaphore if non-existent */
 	/* check arguments	*/
 	if (semNum > IPC_NMAXSEM || semNum <= 0)
-	{
-		*status = IpcInvalidArgument;
-		return 2;				/* returns the number of the invalid
-								 * argument   */
-	}
+		return(-1);
 
 	semId = semget(semKey, 0, 0);
 
 	if (semId == -1)
 	{
-		*status = IpcSemIdNotExist;		/* there doesn't exist a semaphore */
 #ifdef DEBUG_IPC
 		EPRINTF("calling semget with %d, %d , %d\n",
 				semKey,
@@ -348,7 +329,7 @@ IpcSemaphoreCreate(IpcSemaphoreKey semKey,
 			EPRINTF("IpcSemaphoreCreate: semget failed (%s) "
 					"key=%d, num=%d, permission=%o",
 					strerror(errno), semKey, semNum, permission);
-			proc_exit(3);
+			return(-1);
 		}
 		for (i = 0; i < semNum; i++)
 			array[i] = semStartValue;
@@ -358,22 +339,16 @@ IpcSemaphoreCreate(IpcSemaphoreKey semKey,
 		{
 			EPRINTF("IpcSemaphoreCreate: semctl failed (%s) id=%d",
 					strerror(errno), semId);
+			semctl(semId, 0, IPC_RMID, semun);
+			return(-1);
 		}
 
 		if (removeOnExit)
 			on_shmem_exit(IPCPrivateSemaphoreKill, (caddr_t) semId);
-
-	}
-	else
-	{
-		/* there is a semaphore id for this key */
-		*status = IpcSemIdExist;
 	}
 
 #ifdef DEBUG_IPC
-	EPRINTF("\nIpcSemaphoreCreate, status %d, returns %d\n",
-			*status,
-			semId);
+	EPRINTF("\nIpcSemaphoreCreate, returns %d\n", semId);
 	fflush(stdout);
 	fflush(stderr);
 #endif

src/backend/storage/ipc/ipci.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipci.c,v 1.30 1999/07/17 20:17:44 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipci.c,v 1.31 1999/10/06 21:58:06 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -54,17 +54,17 @@ void
 CreateSharedMemoryAndSemaphores(IPCKey key, int maxBackends)
 {
 	int			size;
+	extern int	XLOGShmemSize(void);
+	extern void	XLOGShmemInit(void);
 
 #ifdef HAS_TEST_AND_SET
-	/* ---------------
-	 *	create shared memory for slocks
-	 * --------------
+	/*
+	 * Create shared memory for slocks
 	 */
 	CreateAndInitSLockMemory(IPCKeyGetSLockSharedMemoryKey(key));
 #endif
-	/* ----------------
-	 *	kill and create the buffer manager buffer pool (and semaphore)
-	 * ----------------
+	/*
+	 * Kill and create the buffer manager buffer pool (and semaphore)
 	 */
 	CreateSpinlocks(IPCKeyGetSpinLockSemaphoreKey(key));
 
@@ -73,7 +73,7 @@ CreateSharedMemoryAndSemaphores(IPCKey key, int maxBackends)
 	 * moderately-accurate estimates for the big hogs, plus 100K for the
 	 * stuff that's too small to bother with estimating.
 	 */
-	size = BufferShmemSize() + LockShmemSize(maxBackends);
+	size = BufferShmemSize() + LockShmemSize(maxBackends) + XLOGShmemSize();
 #ifdef STABLE_MEMORY_STORAGE
 	size += MMShmemSize();
 #endif
@@ -89,6 +89,7 @@ CreateSharedMemoryAndSemaphores(IPCKey key, int maxBackends)
 	ShmemCreate(IPCKeyGetBufferMemoryKey(key), size);
 	ShmemIndexReset();
 	InitShmem(key, size);
+	XLOGShmemInit();
 	InitBufferPool(key);
 
 	/* ----------------

src/backend/storage/ipc/shmem.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/shmem.c,v 1.46 1999/09/24 00:24:35 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/shmem.c,v 1.47 1999/10/06 21:58:06 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -187,8 +187,7 @@ InitShmem(unsigned int key, unsigned int size)
 	 * bootstrap initialize spin locks so we can start to use the
 	 * allocator and shmem index.
 	 */
-	if (!InitSpinLocks(ShmemBootstrap, IPCKeyGetSpinLockSemaphoreKey(key)))
-		return FALSE;
+	InitSpinLocks();
 
 	/*
 	 * We have just allocated additional space for two spinlocks. Now

src/backend/storage/ipc/spin.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/Attic/spin.c,v 1.20 1999/07/16 04:59:44 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/Attic/spin.c,v 1.21 1999/10/06 21:58:06 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -40,15 +40,15 @@ IpcSemaphoreId SpinLockId;
 #ifdef HAS_TEST_AND_SET
 /* real spin lock implementations */
 
-bool
+void
 CreateSpinlocks(IPCKey key)
 {
 	/* the spin lock shared memory must have been created by now */
-	return TRUE;
+	return;
 }
 
-bool
-InitSpinLocks(int init, IPCKey key)
+void
+InitSpinLocks(void)
 {
 	extern SPINLOCK ShmemLock;
 	extern SPINLOCK ShmemIndexLock;
@@ -57,7 +57,8 @@ InitSpinLocks(int init, IPCKey key)
 	extern SPINLOCK ProcStructLock;
 	extern SPINLOCK SInvalLock;
 	extern SPINLOCK OidGenLockId;
-
+	extern SPINLOCK XidGenLockId;
+	extern SPINLOCK	ControlFileLockId;
 #ifdef STABLE_MEMORY_STORAGE
 	extern SPINLOCK MMCacheLock;
 
@@ -71,12 +72,14 @@ InitSpinLocks(int init, IPCKey key)
 	ProcStructLock = (SPINLOCK) PROCSTRUCTLOCKID;
 	SInvalLock = (SPINLOCK) SINVALLOCKID;
 	OidGenLockId = (SPINLOCK) OIDGENLOCKID;
+	XidGenLockId = (SPINLOCK) XIDGENLOCKID;
+	ControlFileLockId = (SPINLOCK) CNTLFILELOCKID;
 
 #ifdef STABLE_MEMORY_STORAGE
 	MMCacheLock = (SPINLOCK) MMCACHELOCKID;
 #endif
 
-	return TRUE;
+	return;
 }
 
 #ifdef LOCKDEBUG
@@ -224,55 +227,17 @@ SpinIsLocked(SPINLOCK lock)
  *		the spinlocks
  *
  */
-bool
+void
 CreateSpinlocks(IPCKey key)
 {
 
-	int			status;
-	IpcSemaphoreId semid;
-
-	semid = IpcSemaphoreCreate(key, MAX_SPINS, IPCProtection,
-							   IpcSemaphoreDefaultStartValue, 1, &status);
-	if (status == IpcSemIdExist)
-	{
-		IpcSemaphoreKill(key);
-		elog(NOTICE, "Destroying old spinlock semaphore");
-		semid = IpcSemaphoreCreate(key, MAX_SPINS, IPCProtection,
-							  IpcSemaphoreDefaultStartValue, 1, &status);
-	}
-
-	if (semid >= 0)
-	{
-		SpinLockId = semid;
-		return TRUE;
-	}
-	/* cannot create spinlocks */
-	elog(FATAL, "CreateSpinlocks: cannot create spin locks");
-	return FALSE;
-}
+	SpinLockId = IpcSemaphoreCreate(key, MAX_SPINS, IPCProtection,
+							   IpcSemaphoreDefaultStartValue, 1);
 
-/*
- * Attach to existing spinlock set
- */
-static bool
-AttachSpinLocks(IPCKey key)
-{
-	IpcSemaphoreId id;
+	if (SpinLockId <= 0)
+		elog(STOP, "CreateSpinlocks: cannot create spin locks");
 
-	id = semget(key, MAX_SPINS, 0);
-	if (id < 0)
-	{
-		if (errno == EEXIST)
-		{
-			/* key is the name of someone else's semaphore */
-			elog(FATAL, "AttachSpinlocks: SPIN_KEY belongs to someone else");
-		}
-		/* cannot create spinlocks */
-		elog(FATAL, "AttachSpinlocks: cannot create spin locks");
-		return FALSE;
-	}
-	SpinLockId = id;
-	return TRUE;
+	return;
 }
 
 /*
@@ -287,8 +252,8 @@ AttachSpinLocks(IPCKey key)
  * (SJCacheLock) for it.  Same story for the main memory storage mgr.
  *
  */
-bool
-InitSpinLocks(int init, IPCKey key)
+void
+InitSpinLocks(void)
 {
 	extern SPINLOCK ShmemLock;
 	extern SPINLOCK ShmemIndexLock;
@@ -297,26 +262,14 @@ InitSpinLocks(int init, IPCKey key)
 	extern SPINLOCK ProcStructLock;
 	extern SPINLOCK SInvalLock;
 	extern SPINLOCK OidGenLockId;
+	extern SPINLOCK XidGenLockId;
+	extern SPINLOCK	ControlFileLockId;
 
 #ifdef STABLE_MEMORY_STORAGE
 	extern SPINLOCK MMCacheLock;
 
 #endif
 
-	if (!init || key != IPC_PRIVATE)
-	{
-
-		/*
-		 * if bootstrap and key is IPC_PRIVATE, it means that we are
-		 * running backend by itself.  no need to attach spinlocks
-		 */
-		if (!AttachSpinLocks(key))
-		{
-			elog(FATAL, "InitSpinLocks: couldnt attach spin locks");
-			return FALSE;
-		}
-	}
-
 	/* These five (or six) spinlocks have fixed location is shmem */
 	ShmemLock = (SPINLOCK) SHMEMLOCKID;
 	ShmemIndexLock = (SPINLOCK) SHMEMINDEXLOCKID;
@@ -325,12 +278,14 @@ InitSpinLocks(int init, IPCKey key)
 	ProcStructLock = (SPINLOCK) PROCSTRUCTLOCKID;
 	SInvalLock = (SPINLOCK) SINVALLOCKID;
 	OidGenLockId = (SPINLOCK) OIDGENLOCKID;
+	XidGenLockId = (SPINLOCK) XIDGENLOCKID;
+	ControlFileLockId = (SPINLOCK) CNTLFILELOCKID;
 
 #ifdef STABLE_MEMORY_STORAGE
 	MMCacheLock = (SPINLOCK) MMCACHELOCKID;
 #endif
 
-	return TRUE;
+	return;
 }
 
 #endif	 /* HAS_TEST_AND_SET */

src/backend/storage/lmgr/proc.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.61 1999/09/24 00:24:41 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.62 1999/10/06 21:58:07 vadim 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 1.61 1999/09/24 00:24:41 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.62 1999/10/06 21:58:07 vadim Exp $
  */
 #include <sys/time.h>
 #include <unistd.h>
@@ -70,7 +70,7 @@
 #include "storage/proc.h"
 #include "utils/trace.h"
 
-static void HandleDeadLock(int sig);
+void HandleDeadLock(SIGNAL_ARGS);
 static void ProcFreeAllSemaphores(void);
 
 #define DeadlockCheckTimer pg_options[OPT_DEADLOCKTIMEOUT]
@@ -84,12 +84,6 @@ static void ProcFreeAllSemaphores(void);
  */
 SPINLOCK	ProcStructLock;
 
-/*
- * For cleanup routines.  Don't cleanup if the initialization
- * has not happened.
- */
-static bool ProcInitialized = FALSE;
-
 static PROC_HDR *ProcGlobal = NULL;
 
 PROC	   *MyProc = NULL;
@@ -167,8 +161,9 @@ InitProcGlobal(IPCKey key, int maxBackends)
 										   PROC_NSEMS_PER_SET,
 										   IPCProtection,
 										   IpcSemaphoreDefaultStartValue,
-										   0,
-										   &semstat);
+										   0);
+				if (semId < 0)
+					elog(FATAL, "InitProcGlobal: IpcSemaphoreCreate failed");
 				/* mark this sema set allocated */
 				ProcGlobal->freeSemMap[i] = (1 << PROC_NSEMS_PER_SET);
 			}
@@ -189,12 +184,6 @@ InitProcess(IPCKey key)
 	unsigned long location,
 				myOffset;
 
-	/* ------------------
-	 * Routine called if deadlock timer goes off. See ProcSleep()
-	 * ------------------
-	 */
-	pqsignal(SIGALRM, HandleDeadLock);
-
 	SpinAcquire(ProcStructLock);
 
 	/* attach to the free list */
@@ -203,7 +192,7 @@ InitProcess(IPCKey key)
 	if (!found)
 	{
 		/* this should not happen. InitProcGlobal() is called before this. */
-		elog(ERROR, "InitProcess: Proc Header uninitialized");
+		elog(STOP, "InitProcess: Proc Header uninitialized");
 	}
 
 	if (MyProc != NULL)
@@ -271,8 +260,7 @@ InitProcess(IPCKey key)
 								   PROC_NSEMS_PER_SET,
 								   IPCProtection,
 								   IpcSemaphoreDefaultStartValue,
-								   0,
-								   &semstat);
+								   0);
 
 		/*
 		 * we might be reusing a semaphore that belongs to a dead backend.
@@ -316,14 +304,12 @@ InitProcess(IPCKey key)
 	 */
 	location = MAKE_OFFSET(MyProc);
 	if ((!ShmemPIDLookup(MyProcPid, &location)) || (location != MAKE_OFFSET(MyProc)))
-		elog(FATAL, "InitProc: ShmemPID table broken");
+		elog(STOP, "InitProc: ShmemPID table broken");
 
 	MyProc->errType = NO_ERROR;
 	SHMQueueElemInit(&(MyProc->links));
 
 	on_shmem_exit(ProcKill, (caddr_t) MyProcPid);
-
-	ProcInitialized = TRUE;
 }
 
 /*
@@ -755,8 +741,8 @@ ProcAddLock(SHM_QUEUE *elem)
  * up my semaphore.
  * --------------------
  */
-static void
-HandleDeadLock(int sig)
+void
+HandleDeadLock(SIGNAL_ARGS)
 {
 	LOCK	   *mywaitlock;
 

src/backend/utils/error/elog.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/error/elog.c,v 1.48 1999/09/11 19:06:31 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/error/elog.c,v 1.49 1999/10/06 21:58:09 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -37,6 +37,7 @@
 extern int	errno;
 extern int	sys_nerr;
 
+extern CommandDest	whereToSendOutput;
 
 #ifdef USE_SYSLOG
 /*
@@ -107,6 +108,19 @@ elog(int lev, const char *fmt, ...)
 	if (lev <= DEBUG && Debugfile < 0)
 		return;					/* ignore debug msgs if noplace to send */
 
+	if (lev == ERROR || lev == FATAL)
+	{
+		if (IsInitProcessingMode())
+		{
+			extern TransactionState	CurrentTransactionState;
+
+			if (CurrentTransactionState->state != TRANS_DEFAULT && 
+				CurrentTransactionState->state != TRANS_DISABLED)
+				abort();
+			lev = FATAL;
+		}
+	}
+
 	/* choose message prefix and indent level */
 	switch (lev)
 	{
@@ -304,7 +318,7 @@ elog(int lev, const char *fmt, ...)
 
 #ifndef PG_STANDALONE
 
-	if (lev > DEBUG && IsUnderPostmaster)
+	if (lev > DEBUG && whereToSendOutput == Remote)
 	{
 		/* Send IPC message to the front-end program */
 		char		msgtype;
@@ -336,7 +350,7 @@ elog(int lev, const char *fmt, ...)
 		pq_flush();
 	}
 
-	if (lev > DEBUG && ! IsUnderPostmaster)
+	if (lev > DEBUG && whereToSendOutput != Remote)
 	{
 		/* We are running as an interactive backend, so just send
 		 * the message to stderr.
@@ -355,30 +369,23 @@ elog(int lev, const char *fmt, ...)
 	/*
 	 * Perform error recovery action as specified by lev.
 	 */
-	if (lev == ERROR)
+	if (lev == ERROR || lev == FATAL)
 	{
 		if (InError)
 		{
 			/* error reported during error recovery; don't loop forever */
 			elog(REALLYFATAL, "elog: error during error recovery, giving up!");
 		}
-		/* exit to main loop */
+		InError = true;
 		ProcReleaseSpins(NULL); /* get rid of spinlocks we hold */
-		siglongjmp(Warn_restart, 1);
-	}
-
 		if (lev == FATAL)
 		{
-		/*
-		 * Assume that if we have detected the failure we can exit with a
-		 * normal exit status.	This will prevent the postmaster from
-		 * cleaning up when it's not needed.
-		 */
-		fflush(stdout);
-		fflush(stderr);
-		ProcReleaseSpins(NULL); /* get rid of spinlocks we hold */
-		ProcReleaseLocks();		/* get rid of real locks we hold */
-		proc_exit(0);
+			if (IsInitProcessingMode())
+				ExitPostgres(0);
+			ExitAfterAbort = true;
+		}
+		/* exit to main loop */
+		siglongjmp(Warn_restart, 1);
 	}
 
 	if (lev > FATAL)

src/backend/utils/init/miscinit.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.34 1999/07/17 20:18:08 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.35 1999/10/06 21:58:10 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -133,20 +133,7 @@ StatusPostmasterExit(int status)
  *		processing mode support stuff (used to be in pmod.c)
  * ----------------------------------------------------------------
  */
-static ProcessingMode Mode = NoProcessing;
-
-#ifdef NOT_USED
-/*
- * IsNoProcessingMode
- *		True iff processing mode is NoProcessing.
- */
-bool
-IsNoProcessingMode()
-{
-	return (bool) (Mode == NoProcessing);
-}
-
-#endif
+static ProcessingMode Mode = InitProcessing;
 
 /*
  * IsBootstrapProcessingMode
@@ -186,13 +173,13 @@ IsNormalProcessingMode()
  *		BadArg if called with invalid mode.
  *
  * Note:
- *		Mode is NoProcessing before the first time this is called.
+ *		Mode is InitProcessing before the first time this is called.
  */
 void
 SetProcessingMode(ProcessingMode mode)
 {
-	AssertArg(mode == NoProcessing || mode == BootstrapProcessing ||
-			  mode == InitProcessing || mode == NormalProcessing);
+	AssertArg(mode == BootstrapProcessing || mode == InitProcessing || 
+				mode == NormalProcessing);
 
 	Mode = mode;
 }

src/backend/utils/init/postinit.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.50 1999/09/28 11:41:09 vadim Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.51 1999/10/06 21:58:10 vadim Exp $
  *
  * NOTES
  *		InitPostgres() is the function called from PostgresMain
@@ -53,12 +53,13 @@
 #include "mb/pg_wchar.h"
 #endif
 
+void		BaseInit(void);
+
 static void VerifySystemDatabase(void);
 static void VerifyMyDatabase(void);
 static void ReverifyMyDatabase(char *name);
 static void InitCommunication(void);
 static void InitMyDatabaseInfo(char *name);
-static void InitStdio(void);
 static void InitUserid(void);
 
 
@@ -385,37 +386,6 @@ InitCommunication()
 	{
 		if (MyBackendTag == -1)
 			elog(FATAL, "InitCommunication: missing POSTID");
-
-		/*
-		 * Enable this if you are trying to force the backend to run as if
-		 * it is running under the postmaster.
-		 *
-		 * This goto forces Postgres to attach to shared memory instead of
-		 * using malloc'ed memory (which is the normal behavior if run
-		 * directly).
-		 *
-		 * To enable emulation, run the following shell commands (in addition
-		 * to enabling this goto)
-		 *
-		 * % setenv POSTID 1 % setenv POSTPORT 4321 % setenv IPC_KEY 4321000
-		 * % postmaster & % kill -9 %1
-		 *
-		 * Upon doing this, Postmaster will have allocated the shared memory
-		 * resources that Postgres will attach to if you enable
-		 * EMULATE_UNDER_POSTMASTER.
-		 *
-		 * This comment may well age with time - it is current as of 8
-		 * January 1990
-		 *
-		 * Greg
-		 */
-
-#ifdef EMULATE_UNDER_POSTMASTER
-
-		goto forcesharedmemory;
-
-#endif
-
 	}
 	else if (IsUnderPostmaster)
 	{
@@ -439,12 +409,6 @@ InitCommunication()
 	 *	initialize shared memory and semaphores appropriately.
 	 * ----------------
 	 */
-#ifdef EMULATE_UNDER_POSTMASTER
-
-forcesharedmemory:
-
-#endif
-
 	if (!IsUnderPostmaster)		/* postmaster already did this */
 	{
 		PostgresIpcKey = key;
@@ -452,21 +416,6 @@ forcesharedmemory:
 	}
 }
 
-
-/* --------------------------------
- *		InitStdio
- *
- *		this routine consists of a bunch of code fragments
- *		that used to be randomly scattered through cinit().
- *		they all seem to do stuff associated with io.
- * --------------------------------
- */
-static void
-InitStdio()
-{
-	DebugFileOpen();
-}
-
 /* --------------------------------
  * InitPostgres
  *		Initialize POSTGRES.
@@ -477,8 +426,6 @@ InitStdio()
  */
 extern int	NBuffers;
 
-bool		PostgresIsInitialized = false;
-
 int			lockingOff = 0;		/* backend -L switch */
 
 /*
@@ -488,37 +435,11 @@ InitPostgres(char *name)		/* database name */
 {
 	bool		bootstrap;		/* true if BootstrapProcessing */
 
-	/* ----------------
-	 *	see if we're running in BootstrapProcessing mode
-	 * ----------------
+	/*
+	 * See if we're running in BootstrapProcessing mode
 	 */
 	bootstrap = IsBootstrapProcessingMode();
 
-	/* ----------------
-	 *	turn on the exception handler.	Note: we cannot use elog, Assert,
-	 *	AssertState, etc. until after exception handling is on.
-	 * ----------------
-	 */
-	EnableExceptionHandling(true);
-
-	/* ----------------
-	 *	A stupid check to make sure we don't call this more than once.
-	 *	But things like ReinitPostgres() get around this by just diddling
-	 *	the PostgresIsInitialized flag.
-	 * ----------------
-	 */
-	AssertState(!PostgresIsInitialized);
-
-	/* ----------------
-	 *	Memory system initialization.
-	 *	(we may call palloc after EnableMemoryContext())
-	 *
-	 *	Note EnableMemoryContext() must happen before EnablePortalManager().
-	 * ----------------
-	 */
-	EnableMemoryContext(true);	/* initializes the "top context" */
-	EnablePortalManager(true);	/* memory for portal/transaction stuff */
-
 	/* ----------------
 	 *	initialize the backend local portal stack used by
 	 *	internal PQ function calls.  see src/lib/libpq/be-dumpdata.c
@@ -528,14 +449,6 @@ InitPostgres(char *name)		/* database name */
 	 */
 	be_portalinit();
 
-	/* ----------------
-	 *	 attach to shared memory and semaphores, and initialize our
-	 *	 input/output/debugging file descriptors.
-	 * ----------------
-	 */
-	InitCommunication();
-	InitStdio();
-
 	/*
 	 * initialize the local buffer manager
 	 */
@@ -574,13 +487,9 @@ InitPostgres(char *name)		/* database name */
 	 * Will try that, but may not work... - thomas 1997-11-01
 	 */
 
-	/* Does not touch files (?) - thomas 1997-11-01 */
-	smgrinit();
-
-	/* ----------------
-	 *	initialize the transaction system and the relation descriptor cache.
+	/*
+	 * Initialize the transaction system and the relation descriptor cache.
 	 * Note we have to make certain the lock manager is off while we do this.
-	 * ----------------
 	 */
 	AmiTransactionOverride(IsBootstrapProcessingMode());
 	LockDisable(true);
@@ -598,20 +507,18 @@ InitPostgres(char *name)		/* database name */
 
 	LockDisable(false);
 
-	/* ----------------
+	/*
 	 * Set up my per-backend PROC struct in shared memory.
-	 * ----------------
 	 */
 	InitProcess(PostgresIpcKey);
 
-	/* ----------------
+	/*
 	 * Initialize my entry in the shared-invalidation manager's
 	 * array of per-backend data.  (Formerly this came before
 	 * InitProcess, but now it must happen after, because it uses
 	 * MyProc.)  Once I have done this, I am visible to other backends!
 	 *
 	 * Sets up MyBackendId, a unique backend identifier.
-	 * ----------------
 	 */
 	InitSharedInvalidationState();
 
@@ -622,16 +529,14 @@ InitPostgres(char *name)		/* database name */
 			 MyBackendId);
 	}
 
-	/* ----------------
-	 *	initialize the access methods.
+	/*
+	 * Initialize the access methods.
 	 * Does not touch files (?) - thomas 1997-11-01
-	 * ----------------
 	 */
 	initam();
 
-	/* ----------------
-	 *	initialize all the system catalog caches.
-	 * ----------------
+	/*
+	 * Initialize all the system catalog caches.
 	 */
 	zerocaches();
 
@@ -641,34 +546,19 @@ InitPostgres(char *name)		/* database name */
 	 */
 	InitCatalogCache();
 
-	/* ----------------
-	 *	 set ourselves to the proper user id and figure out our postgres
+	/*
+	 * Set ourselves to the proper user id and figure out our postgres
 	 * user id.  If we ever add security so that we check for valid
 	 * postgres users, we might do it here.
-	 * ----------------
 	 */
 	InitUserid();
 
-	/* ----------------
-	 *	 initialize local data in cache invalidation stuff
-	 * ----------------
+	/*
+	 * Initialize local data in cache invalidation stuff
 	 */
 	if (!bootstrap)
 		InitLocalInvalidateData();
 
-	/* ----------------
-	 *	ok, all done, now let's make sure we don't do it again.
-	 * ----------------
-	 */
-	PostgresIsInitialized = true;
-
-	/* ----------------
-	 *	Done with "InitPostgres", now change to NormalProcessing unless
-	 *	we're in BootstrapProcessing mode.
-	 * ----------------
-	 */
-	if (!bootstrap)
-		SetProcessingMode(NormalProcessing);
 	if (lockingOff)
 		LockDisable(true);
 
@@ -680,3 +570,30 @@ InitPostgres(char *name)		/* database name */
 	if (!bootstrap)
 		ReverifyMyDatabase(name);
 }
+
+void
+BaseInit(void)
+{
+
+	/*
+	 * Turn on the exception handler. Note: we cannot use elog, Assert,
+	 * AssertState, etc. until after exception handling is on.
+	 */
+	EnableExceptionHandling(true);
+
+	/*
+	 * Memory system initialization - we may call palloc after 
+	 * EnableMemoryContext()).	Note that EnableMemoryContext() 
+	 * must happen before EnablePortalManager().
+	 */
+	EnableMemoryContext(true);	/* initializes the "top context" */
+	EnablePortalManager(true);	/* memory for portal/transaction stuff */
+
+	/*
+	 * Attach to shared memory and semaphores, and initialize our
+	 * input/output/debugging file descriptors.
+	 */
+	InitCommunication();
+	DebugFileOpen();
+	smgrinit();
+}

src/backend/utils/time/tqual.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.31 1999/07/15 22:40:15 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.32 1999/10/06 21:58:11 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -18,8 +18,6 @@
 
 #include "utils/tqual.h"
 
-extern bool PostgresIsInitialized;
-
 SnapshotData SnapshotDirtyData;
 Snapshot	SnapshotDirty = &SnapshotDirtyData;
 
@@ -194,17 +192,6 @@ HeapTupleSatisfiesNow(HeapTupleHeader tuple)
 	if (AMI_OVERRIDE)
 		return true;
 
-	/*
-	 * If the transaction system isn't yet initialized, then we assume
-	 * that transactions committed.  We only look at system catalogs
-	 * during startup, so this is less awful than it seems, but it's still
-	 * pretty awful.
-	 */
-
-	if (!PostgresIsInitialized)
-		return ((bool) (TransactionIdIsValid(tuple->t_xmin) &&
-						!TransactionIdIsValid(tuple->t_xmax)));
-
 	if (!(tuple->t_infomask & HEAP_XMIN_COMMITTED))
 	{
 		if (tuple->t_infomask & HEAP_XMIN_INVALID)

src/bin/initdb/initdb.sh

@@ -26,7 +26,7 @@
 #
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/bin/initdb/Attic/initdb.sh,v 1.60 1999/05/20 16:50:06 wieck Exp $
+#    $Header: /cvsroot/pgsql/src/bin/initdb/Attic/initdb.sh,v 1.61 1999/10/06 21:58:12 vadim Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -300,6 +300,12 @@ else
         mkdir $PGDATA/base
         if [ $? -ne 0 ]; then exit 5; fi
     fi
+    if [ ! -d $PGDATA/pg_xlog ]; then
+        echo "Creating Postgres database XLOG directory $PGDATA/pg_xlog"
+        echo
+        mkdir $PGDATA/pg_xlog
+        if [ $? -ne 0 ]; then exit 5; fi
+    fi
 fi
 
 #----------------------------------------------------------------------------
@@ -316,6 +322,7 @@ else
 fi
 
 BACKENDARGS="-boot -C -F -D$PGDATA $BACKEND_TALK_ARG"
+FIRSTRUN="-boot -x -C -F -D$PGDATA $BACKEND_TALK_ARG"
 
 echo "Creating template database in $PGDATA/base/template1"
 [ "$debug" -ne 0 ] && echo "Running: postgres $BACKENDARGS template1"
@@ -323,7 +330,7 @@ echo "Creating template database in $PGDATA/base/template1"
 cat $TEMPLATE \
 | sed -e "s/postgres PGUID/$POSTGRES_SUPERUSERNAME $POSTGRES_SUPERUID/" \
       -e "s/PGUID/$POSTGRES_SUPERUID/" \
-| postgres $BACKENDARGS template1
+| postgres $FIRSTRUN template1
 
 if [ $? -ne 0 ]; then
     echo "$CMDNAME: could not create template database"

src/include/libpq/pqsignal.h

@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pqsignal.h,v 1.9 1999/02/13 23:21:36 momjian Exp $
+ * $Id: pqsignal.h,v 1.10 1999/10/06 21:58:16 vadim Exp $
  *
  * NOTES
  *	  This shouldn't be in libpq, but the monitor and some other
@@ -17,6 +17,28 @@
 #ifndef PQSIGNAL_H
 #define PQSIGNAL_H
 
+#ifdef HAVE_SIGPROCMASK
+extern sigset_t		UnBlockSig,
+					BlockSig;
+#define	PG_INITMASK()	( \
+							sigemptyset(&UnBlockSig), \
+							sigfillset(&BlockSig) \
+						)
+#define	PG_SETMASK(mask)	sigprocmask(SIG_SETMASK, mask, NULL)
+#else
+extern int			UnBlockSig,
+					BlockSig;
+#define PG_INITMASK()	( \
+							UnBlockSig = 0, \
+							BlockSig = sigmask(SIGHUP) | sigmask(SIGQUIT) | \
+										sigmask(SIGTERM) | sigmask(SIGALRM) | \
+										sigmask(SIGINT) | sigmask(SIGUSR1) | \
+										sigmask(SIGUSR2) | sigmask(SIGCHLD) | \
+										sigmask(SIGWINCH) | sigmask(SIGFPE) \
+						)
+#define	PG_SETMASK(mask)	sigsetmask(*((int*)(mask)))
+#endif
+
 typedef void (*pqsigfunc) (int);
 
 extern pqsigfunc pqsignal(int signo, pqsigfunc func);

src/include/miscadmin.h

@@ -11,7 +11,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: miscadmin.h,v 1.42 1999/09/27 20:27:26 momjian Exp $
+ * $Id: miscadmin.h,v 1.43 1999/10/06 21:58:13 vadim Exp $
  *
  * NOTES
  *	  some of the information in this file will be moved to
@@ -143,28 +143,25 @@ extern int	CheckPathAccess(char *path, char *name, int open_mode);
  *****************************************************************************/
 /*
  * Description:
- *		There are four processing modes in POSTGRES.  They are NoProcessing
- * or "none," BootstrapProcessing or "bootstrap," InitProcessing or
+ *		There are three processing modes in POSTGRES.  They are 
+ * "BootstrapProcessing or "bootstrap," InitProcessing or
  * "initialization," and NormalProcessing or "normal."
  *
- *		If a POSTGRES binary is in normal mode, then all code may be executed
- * normally.  In the none mode, only bookkeeping code may be called.  In
- * particular, access method calls may not occur in this mode since the
- * execution state is outside a transaction.
- *
- *		The final two processing modes are used during special times.  When the
+ * The first two processing modes are used during special times. When the
  * system state indicates bootstrap processing, transactions are all given
  * transaction id "one" and are consequently guarenteed to commit. This mode
  * is used during the initial generation of template databases.
  *
- * Finally, the execution state is in initialization mode until all normal
- * initialization is complete.	Some code behaves differently when executed in
- * this mode to enable system bootstrapping.
+ * Initialization mode until all normal initialization is complete.	
+ * Some code behaves differently when executed in this mode to enable 
+ * system bootstrapping.
+ *
+ * If a POSTGRES binary is in normal mode, then all code may be executed
+ * normally. 
  */
 
 typedef enum ProcessingMode
 {
-	NoProcessing,				/* "nothing" can be done */
 	BootstrapProcessing,		/* bootstrap creation of template database */
 	InitProcessing,				/* initializing system */
 	NormalProcessing			/* normal processing */

src/include/storage/ipc.h

@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: ipc.h,v 1.35 1999/07/15 23:04:10 momjian Exp $
+ * $Id: ipc.h,v 1.36 1999/10/06 21:58:17 vadim Exp $
  *
  * NOTES
  *	  This file is very architecture-specific.	This stuff should actually
@@ -79,7 +79,7 @@ extern void on_exit_reset(void);
 
 extern IpcSemaphoreId IpcSemaphoreCreate(IpcSemaphoreKey semKey,
 				   int semNum, int permission, int semStartValue,
-				   int removeOnExit, int *status);
+				   int removeOnExit);
 extern void IpcSemaphoreKill(IpcSemaphoreKey key);
 extern void IpcSemaphoreLock(IpcSemaphoreId semId, int sem, int lock);
 extern void IpcSemaphoreUnlock(IpcSemaphoreId semId, int sem, int lock);
@@ -105,6 +105,8 @@ typedef enum _LockId_
 	BUFMGRLOCKID,
 	LOCKLOCKID,
 	OIDGENLOCKID,
+	XIDGENLOCKID,
+	CNTLFILELOCKID,
 	SHMEMLOCKID,
 	SHMEMINDEXLOCKID,
 	LOCKMGRLOCKID,
@@ -147,6 +149,8 @@ typedef enum _LockId_
 
 	PROCSTRUCTLOCKID,
 	OIDGENLOCKID,
+	XIDGENLOCKID,
+	CNTLFILELOCKID,
 	FIRSTFREELOCKID
 } _LockId_;
 

src/include/storage/spin.h

@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: spin.h,v 1.9 1999/07/15 23:04:16 momjian Exp $
+ * $Id: spin.h,v 1.10 1999/10/06 21:58:17 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -27,8 +27,8 @@
 
 typedef int SPINLOCK;
 
-extern bool CreateSpinlocks(IPCKey key);
-extern bool InitSpinLocks(int init, IPCKey key);
+extern void CreateSpinlocks(IPCKey key);
+extern void InitSpinLocks(void);
 extern void SpinAcquire(SPINLOCK lockid);
 extern void SpinRelease(SPINLOCK lockid);
 

src/include/tcop/tcopprot.h

@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: tcopprot.h,v 1.21 1999/05/26 12:56:58 momjian Exp $
+ * $Id: tcopprot.h,v 1.22 1999/10/06 21:58:18 vadim Exp $
  *
  * OLD COMMENTS
  *	  This file was created so that other c files could get the two
@@ -38,6 +38,7 @@
 #endif
 extern DLLIMPORT sigjmp_buf Warn_restart;
 extern bool InError;
+extern bool	ExitAfterAbort;
 
 #ifndef BOOTSTRAP_INCLUDE
 extern List *pg_parse_and_plan(char *query_string, Oid *typev, int nargs,