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

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First step in cleaning up backend initialization code.
Fix for FATAL: now FATAL is ERROR + exit.
This commit is contained in:
Vadim B. Mikheev
1999-10-06 21:58:18 +00:00
parent 9dcd8c528f
commit 4793740367
20 changed files with 1158 additions and 1015 deletions
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36
src/backend/storage/lmgr/proc.c
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@ -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;