From e3af0032b236dc52d4a74c4d740e57a1f6d520aa Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Sat, 7 Nov 2009 18:55:16 +0100
Subject: set the close-on-exec flag on all file descriptors
Added the "fd_util" library, which attempts to use the new thread-safe
Linux system calls pipe2(), accept4() and the options O_CLOEXEC,
SOCK_CLOEXEC. Without these, it falls back to FD_CLOEXEC, which is
not thread safe.
This is particularly important for the "pipe" output plugin (and
others, such as JACK/PulseAudio), because we were heavily leaking file
descriptors to child processes.
---
src/event_pipe.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
(limited to 'src/event_pipe.c')
diff --git a/src/event_pipe.c b/src/event_pipe.c
index 3e5009150..17e11097a 100644
--- a/src/event_pipe.c
+++ b/src/event_pipe.c
@@ -19,6 +19,7 @@
#include "event_pipe.h"
#include "utils.h"
+#include "fd_util.h"
#include <stdbool.h>
#include <assert.h>
@@ -84,11 +85,7 @@ void event_pipe_init(void)
GIOChannel *channel;
int ret;
-#ifdef WIN32
- ret = _pipe(event_pipe, 512, _O_BINARY);
-#else
- ret = pipe(event_pipe);
-#endif
+ ret = pipe_cloexec(event_pipe);
if (ret < 0)
g_error("Couldn't open pipe: %s", strerror(errno));
#ifndef WIN32
--
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