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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2022-02-09 14:24:55 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2022-02-09 14:24:55 -0500 |
| commit | c23461a22a1ead0a34dc209c2918ec4ccaf61475 (patch) | |
| tree | ae9f8919e0c8cc170676f984ef96522d920a3f69 /src | |
| parent | e327291e4a96571c85b6a9b140e1a8116fb47ec6 (diff) | |
| download | postgresql-c23461a22a1ead0a34dc209c2918ec4ccaf61475.tar.gz postgresql-c23461a22a1ead0a34dc209c2918ec4ccaf61475.zip | |
Test honestly for <sys/signalfd.h>.
Commit 6a2a70a02 supposed that any platform having <sys/epoll.h>
would also have <sys/signalfd.h>. It turns out there are still a
few people using platforms where that's not so, so we'd better make
a separate configure probe for it. But since it took this long to
notice, I'm content with the decision to not have a separate code
path for epoll-only machines; we'll just fall back to using poll()
for these stragglers.
Per gripe from Gabriela Serventi. Back-patch to v14 where this
code came in.
Discussion: https://postgr.es/m/CAHOHWE-JjJDfcYuLAAEO7Jk07atFAU47z8TzHzg71gbC0aMy=g@mail.gmail.com
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/storage/ipc/latch.c | 9 | ||||
| -rw-r--r-- | src/include/pg_config.h.in | 3 | ||||
| -rw-r--r-- | src/tools/msvc/Solution.pm | 1 |
3 files changed, 8 insertions, 5 deletions
diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index 1d893cf863d..6ff1ecbe098 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -43,6 +43,9 @@ #ifdef HAVE_SYS_EVENT_H #include <sys/event.h> #endif +#ifdef HAVE_SYS_SIGNALFD_H +#include <sys/signalfd.h> +#endif #ifdef HAVE_POLL_H #include <poll.h> #endif @@ -69,7 +72,7 @@ #if defined(WAIT_USE_EPOLL) || defined(WAIT_USE_POLL) || \ defined(WAIT_USE_KQUEUE) || defined(WAIT_USE_WIN32) /* don't overwrite manual choice */ -#elif defined(HAVE_SYS_EPOLL_H) +#elif defined(HAVE_SYS_EPOLL_H) && defined(HAVE_SYS_SIGNALFD_H) #define WAIT_USE_EPOLL #elif defined(HAVE_KQUEUE) #define WAIT_USE_KQUEUE @@ -81,10 +84,6 @@ #error "no wait set implementation available" #endif -#ifdef WAIT_USE_EPOLL -#include <sys/signalfd.h> -#endif - /* typedef in latch.h */ struct WaitEventSet { diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in index d69d461ff2c..6c7eea17d45 100644 --- a/src/include/pg_config.h.in +++ b/src/include/pg_config.h.in @@ -640,6 +640,9 @@ /* Define to 1 if you have the <sys/shm.h> header file. */ #undef HAVE_SYS_SHM_H +/* Define to 1 if you have the <sys/signalfd.h> header file. */ +#undef HAVE_SYS_SIGNALFD_H + /* Define to 1 if you have the <sys/sockio.h> header file. */ #undef HAVE_SYS_SOCKIO_H diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm index 138b630b999..c983f506f97 100644 --- a/src/tools/msvc/Solution.pm +++ b/src/tools/msvc/Solution.pm @@ -406,6 +406,7 @@ sub GenerateFiles HAVE_SYS_SELECT_H => undef, HAVE_SYS_SEM_H => undef, HAVE_SYS_SHM_H => undef, + HAVE_SYS_SIGNALFD_H => undef, HAVE_SYS_SOCKIO_H => undef, HAVE_SYS_STAT_H => 1, HAVE_SYS_TAS_H => undef, |