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#ifdef ASYNC_DEBUG various sections of async.c 

Submitted by: Massimo Dal Zotto <dz@cs.unitn.it>
This commit is contained in:
Marc G. Fournier 1996-12-19 04:54:56 +00:00
parent db7a90f1d9
commit f0bcb1762d
1 changed files with 17 additions and 1 deletions
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18
src/backend/commands/async.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/async.c,v 1.8 1996/12/07 04:36:38 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/async.c,v 1.9 1996/12/19 04:54:56 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
@ -117,13 +117,17 @@ Async_NotifyHandler(SIGNAL_ARGS)
if ((CurrentTransactionState->state == TRANS_DEFAULT) &&
(CurrentTransactionState->blockState == TRANS_DEFAULT)) {
#ifdef ASYNC_DEBUG
elog(DEBUG, "Waking up sleeping backend process");
#endif
Async_NotifyFrontEnd();
}else {
#ifdef ASYNC_DEBUG
elog(DEBUG, "Process is in the middle of another transaction, state = %d, block state = %d",
CurrentTransactionState->state,
CurrentTransactionState->blockState);
#endif
notifyFrontEndPending = 1;
}
}
@ -167,7 +171,9 @@ Async_Notify(char *relname)
char *notifyName;
#ifdef ASYNC_DEBUG
elog(DEBUG,"Async_Notify: %s",relname);
#endif
if (!pendingNotifies)
pendingNotifies = DLNewList();
@ -249,7 +255,9 @@ Async_NotifyAtCommit()
if (notifyIssued) { /* 'notify <relname>' issued by us */
notifyIssued = 0;
StartTransactionCommand();
#ifdef ASYNC_DEBUG
elog(DEBUG, "Async_NotifyAtCommit.");
#endif
ScanKeyEntryInitialize(&key, 0,
Anum_pg_listener_notify,
Integer32EqualRegProcedure,
@ -268,10 +276,14 @@ Async_NotifyAtCommit()
tdesc, &isnull);
if (ourpid == DatumGetInt32(d)) {
#ifdef ASYNC_DEBUG
elog(DEBUG, "Notifying self, setting notifyFronEndPending to 1");
#endif
notifyFrontEndPending = 1;
} else {
#ifdef ASYNC_DEBUG
elog(DEBUG, "Notifying others");
#endif
#ifndef win32
if (kill(DatumGetInt32(d), SIGUSR2) < 0) {
if (errno == ESRCH) {
@ -373,7 +385,9 @@ Async_Listen(char *relname, int pid)
char *relnamei;
TupleDesc tupDesc;
#ifdef ASYNC_DEBUG
elog(DEBUG,"Async_Listen: %s",relname);
#endif
for (i = 0 ; i < Natts_pg_listener; i++) {
nulls[i] = ' ';
values[i] = PointerGetDatum(NULL);
@ -514,7 +528,9 @@ Async_NotifyFrontEnd()
notifyFrontEndPending = 0;
#ifdef ASYNC_DEBUG
elog(DEBUG, "Async_NotifyFrontEnd: notifying front end.");
#endif
StartTransactionCommand();
ourpid = getpid();