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Improve BackendXidGetPid() to only access allProcs on matching XID

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Compilers are able to optimize that, but it makes the code slightly more
readable this way.

Author: Zhao Junwang
Reviewed-by: Ashutosh Bapat
Discussion: https://postgr.es/m/CAEG8a3+i9gtqF65B+g_puVaCQuf0rZC-EMqMyEjGFJYOqUUWfA@mail.gmail.com
This commit is contained in:
Michael Paquier 2023-09-08 10:00:29 +09:00
parent 8438a3ffef
commit e722846daf
1 changed files with 3 additions and 3 deletions
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6
src/backend/storage/ipc/procarray.c
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@ -3174,11 +3174,11 @@ BackendXidGetPid(TransactionId xid)
for (index = 0; index < arrayP->numProcs; index++)
{
int pgprocno = arrayP->pgprocnos[index];
PGPROC *proc = &allProcs[pgprocno];
if (other_xids[index] == xid)
{
int pgprocno = arrayP->pgprocnos[index];
PGPROC *proc = &allProcs[pgprocno];
result = proc->pid;
break;
}