STANDBY_LOCK_TIMEOUT may not interrupt ProcWaitForSignal()?

Hi,

When the startup process needs to wait for recovery conflict on lock,
STANDBY_LOCK_TIMEOUT is enabled to interrupt ProcWaitForSignal()
if necessary. If this timeout happens, StandbyLockTimeoutHandler() is
called and this function does nothing as follows.

/*
* StandbyLockTimeoutHandler() will be called if STANDBY_LOCK_TIMEOUT is exceeded.
* This doesn't need to do anything, simply waking up is enough.
*/
void
StandbyLockTimeoutHandler(void)
{
}

But if STANDBY_LOCK_TIMEOUT happens just before entering ProcWaitForSignal(),
the timeout fails to interrupt that wait. Also a signal sent by this timeout
doesn't interrupt poll() used in ProcWaitForSignal(), on all platforms.

So I think that StandbyLockTimeoutHandler() should do SetLatch(MyLatch)
so that the timeout can interrupt ProcWaitForSignal() even in those cases.
Thought?

Regards,

--
Fujii Masao
Advanced Computing Technology Center
Research and Development Headquarters
NTT DATA CORPORATION