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-rw-r--r--src/fd_util.c14
-rw-r--r--src/fd_util.h11
2 files changed, 25 insertions, 0 deletions
diff --git a/src/fd_util.c b/src/fd_util.c
index 882b4c7d5..ea29d6eaa 100644
--- a/src/fd_util.c
+++ b/src/fd_util.c
@@ -49,6 +49,10 @@
#include <sys/inotify.h>
#endif
+#ifdef HAVE_EVENTFD
+#include <sys/eventfd.h>
+#endif
+
#ifndef WIN32
static int
@@ -328,6 +332,16 @@ inotify_init_cloexec(void)
#endif
+#ifdef HAVE_EVENTFD
+
+int
+eventfd_cloexec_nonblock(unsigned initval, int flags)
+{
+ return eventfd(initval, flags | EFD_CLOEXEC | EFD_NONBLOCK);
+}
+
+#endif
+
int
close_socket(int fd)
{
diff --git a/src/fd_util.h b/src/fd_util.h
index c8a17c7ef..e65c6a69b 100644
--- a/src/fd_util.h
+++ b/src/fd_util.h
@@ -144,6 +144,17 @@ inotify_init_cloexec(void);
#endif
+#ifdef HAVE_EVENTFD
+
+/**
+ * Wrapper for eventfd() which sets the flags CLOEXEC and NONBLOCK
+ * flag (atomically if supported by the OS).
+ */
+int
+eventfd_cloexec_nonblock(unsigned initval, int flags);
+
+#endif
+
/**
* Portable wrapper for close(); use closesocket() on WIN32/WinSock.
*/