| From: | Thomas Munro <tmunro(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Forward received condition variable signals on cancel. |
| Date: | 2019-07-13 03:01:35 |
| Message-ID: | E1hm8I3-0000hJ-A6@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
Forward received condition variable signals on cancel.
After a process decides not to wait for a condition variable, it can
still consume a signal before it reaches ConditionVariableCancelSleep().
In that case, pass the signal on to another waiter if possible, so that
a signal doesn't go missing when there is another process ready to
receive it.
Author: Thomas Munro
Reviewed-by: Shawn Debnath
Discussion: https://postgr.es/m/CA%2BhUKGLQ_RW%2BXs8znDn36e-%2Bmq2--zrPemBqTQ8eKT-VO1OF4Q%40mail.gmail.com
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/b91dd9de5ea0839d0d248ebbe8cb926c3df52c7c
Modified Files
--------------
src/backend/storage/lmgr/condition_variable.c | 11 +++++++++++
1 file changed, 11 insertions(+)
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