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| author | Thomas Munro <tmunro@postgresql.org> | 2020-07-30 17:08:11 +1200 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2020-07-30 17:40:00 +1200 |
| commit | 3347c982bab0dd56d5b6cb784521233ba2bbac27 (patch) | |
| tree | 8ddbf152439cb43c4a0e0b8ca72d62cd126931be /src/backend/utils/init/miscinit.c | |
| parent | d6c08e29e7bc8bc3bf49764192c4a9c71fc0b097 (diff) | |
Use a long lived WaitEventSet for WaitLatch().
Create LatchWaitSet at backend startup time, and use it to implement
WaitLatch(). This avoids repeated epoll/kqueue setup and teardown
system calls.
Reorder SubPostmasterMain() slightly so that we restore the postmaster
pipe and Windows signal emulation before we reach InitPostmasterChild(),
to make this work in EXEC_BACKEND builds.
Reviewed-by: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://postgr.es/m/CA%2BhUKGJAC4Oqao%3DqforhNey20J8CiG2R%3DoBPqvfR0vOJrFysGw%40mail.gmail.com
Diffstat (limited to 'src/backend/utils/init/miscinit.c')
| -rw-r--r-- | src/backend/utils/init/miscinit.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/backend/utils/init/miscinit.c b/src/backend/utils/init/miscinit.c index cca9704d2d7..cf8f9579c34 100644 --- a/src/backend/utils/init/miscinit.c +++ b/src/backend/utils/init/miscinit.c @@ -120,6 +120,7 @@ InitPostmasterChild(void) InitializeLatchSupport(); MyLatch = &LocalLatchData; InitLatch(MyLatch); + InitializeLatchWaitSet(); /* * If possible, make this process a group leader, so that the postmaster @@ -152,6 +153,7 @@ InitStandaloneProcess(const char *argv0) InitializeLatchSupport(); MyLatch = &LocalLatchData; InitLatch(MyLatch); + InitializeLatchWaitSet(); /* Compute paths, no postmaster to inherit from */ if (my_exec_path[0] == '\0') |