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
index 879f92202f31d2d838c0571a3c4331d0f3176639..0d52af552939488d0c6759f94c5d604b659c9f82 100755 (executable)
fi
-for ac_header in atomic.h copyfile.h execinfo.h getopt.h ifaddrs.h langinfo.h mbarrier.h poll.h sys/epoll.h sys/event.h sys/ipc.h sys/personality.h sys/prctl.h sys/procctl.h sys/pstat.h sys/resource.h sys/select.h sys/sem.h sys/shm.h sys/sockio.h sys/tas.h sys/uio.h sys/un.h termios.h ucred.h wctype.h
+for ac_header in atomic.h copyfile.h execinfo.h getopt.h ifaddrs.h langinfo.h mbarrier.h poll.h sys/epoll.h sys/event.h sys/ipc.h sys/personality.h sys/prctl.h sys/procctl.h sys/pstat.h sys/resource.h sys/select.h sys/sem.h sys/shm.h sys/signalfd.h sys/sockio.h sys/tas.h sys/uio.h sys/un.h termios.h ucred.h wctype.h
do :
as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
index 95287705f6b5583f5b4d6278d5647e0da2786acb..2afc822b12815dfc2366d02484bdc8d5decfa772 100644 (file)
sys/select.h
sys/sem.h
sys/shm.h
+ sys/signalfd.h
sys/sockio.h
sys/tas.h
sys/uio.h
index 61c876beff0832d20046feffacf4b320093d5bf0..5bb609b368d5751ccf8af88416b8a92295787fd0 100644 (file)
#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
#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
#error "no wait set implementation available"
#endif
-#ifdef WAIT_USE_EPOLL
-#include <sys/signalfd.h>
-#endif
-
/* typedef in latch.h */
struct WaitEventSet
{
index 912efdbbd12e66d961834a68275577397ddf46c2..28a1f0e9f0fb69935487e64fc84122e6c376cedf 100644 (file)
/* 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
index ed1c53000ff0c016b198557c9851c95d6d0e2848..e6f20679dce2bc5dec1218ca342ec776f0f8a4be 100644 (file)
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,