bpo-41001: Add os.eventfd() (#20930)

Co-authored-by: Kyle Stanley <aeros167@gmail.com>

1 files changed, 32 insertions, 1 deletions

diff --git a/configure b/configure
index 68d692d..b8b056e 100755
--- a/configure
+++ b/configure
@@ -8032,7 +8032,8 @@ sys/stat.h sys/syscall.h sys/sys_domain.h sys/termio.h sys/time.h \
 sys/times.h sys/types.h sys/uio.h sys/un.h sys/utsname.h sys/wait.h pty.h \
 libutil.h sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \
 linux/tipc.h linux/random.h spawn.h util.h alloca.h endian.h \
-sys/endian.h sys/sysmacros.h linux/memfd.h linux/wait.h sys/memfd.h sys/mman.h
+sys/endian.h sys/sysmacros.h linux/memfd.h linux/wait.h sys/memfd.h \
+sys/mman.h sys/eventfd.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"
@@ -12098,6 +12099,36 @@ $as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for eventfd" >&5
+$as_echo_n "checking for eventfd... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#ifdef HAVE_SYS_EVENTFD_H
+#include <sys/eventfd.h>
+#endif
+
+int
+main ()
+{
+int x = eventfd(0, EFD_CLOEXEC)
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+$as_echo "#define HAVE_EVENTFD 1" >>confdefs.h
+
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 # On some systems (eg. FreeBSD 5), we would find a definition of the
 # functions ctermid_r, setgroups in the library, but no prototype
 # (e.g. because we use _XOPEN_SOURCE). See whether we can take their