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Slight refactoring and optimization of some code in WaitOnLock().

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This commit is contained in:
Neil Conway 2005-03-11 03:52:06 +00:00
parent a258a1bba8
commit c129c16492
1 changed files with 6 additions and 4 deletions
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10
src/backend/storage/lmgr/lock.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lock.c,v 1.147 2005/03/01 21:14:59 tgl Exp $
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lock.c,v 1.148 2005/03/11 03:52:06 neilc Exp $
*
* NOTES
* Outside modules can create a lock table and acquire/release
@ -1076,6 +1076,7 @@ WaitOnLock(LOCKMETHODID lockmethodid, LOCALLOCK *locallock,
LockMethod lockMethodTable = LockMethods[lockmethodid];
char *new_status,
*old_status;
size_t len;
Assert(lockmethodid < NumLockMethods);
@ -1083,9 +1084,10 @@ WaitOnLock(LOCKMETHODID lockmethodid, LOCALLOCK *locallock,
locallock->lock, locallock->tag.mode);
old_status = pstrdup(get_ps_display());
new_status = (char *) palloc(strlen(old_status) + 10);
strcpy(new_status, old_status);
strcat(new_status, " waiting");
len = strlen(old_status);
new_status = (char *) palloc(len + 8 + 1);
memcpy(new_status, old_status, len);
strcpy(new_status + len, " waiting");
set_ps_display(new_status);
awaitedLock = locallock;