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Measure WaitLatch's timeout parameter in milliseconds, not microseconds.

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The original definition had the problem that timeouts exceeding about 2100
seconds couldn't be specified on 32-bit machines.  Milliseconds seem like
sufficient resolution, and finer grain than that would be fantasy anyway
on many platforms.

Back-patch to 9.1 so that this aspect of the latch API won't change between
9.1 and later releases.

Peter Geoghegan
This commit is contained in:
Tom Lane
2011-08-09 18:52:29 -04:00
parent 4e15a4db5e
commit 9f17ffd866
6 changed files with 15 additions and 15 deletions
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5
src/backend/postmaster/pgarch.c
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@@ -406,10 +406,11 @@ pgarch_MainLoop(void)
timeout = PGARCH_AUTOWAKE_INTERVAL - (curtime - last_copy_time);
if (timeout > 0)
{
int rc;
int rc;
rc = WaitLatch(&mainloop_latch,
WL_LATCH_SET | WL_TIMEOUT | WL_POSTMASTER_DEATH,
timeout * 1000000L);
timeout * 1000L);
if (rc & WL_TIMEOUT)
wakened = true;
}