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Add macro to cast away volatile without allowing changes to underlying type

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This adds unvolatize(), which works just like unconstify() but for volatile.

Discussion: https://www.postgresql.org/message-id/flat/7a5cbea7-b8df-e910-0f10-04014bcad701%402ndquadrant.com
This commit is contained in:
Peter Eisentraut
2019-03-25 09:35:29 +01:00
parent 572e3e6634
commit 481018f280
3 changed files with 9 additions and 3 deletions
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2
src/backend/storage/ipc/pmsignal.c
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@ -134,7 +134,7 @@ PMSignalShmemInit(void)
if (!found)
{
MemSet(PMSignalState, 0, PMSignalShmemSize());
MemSet(unvolatize(PMSignalData *, PMSignalState), 0, PMSignalShmemSize());
PMSignalState->num_child_flags = MaxLivePostmasterChildren();
}
}