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authorMax Kellermann <max@duempel.org>2009-11-07 18:55:16 +0100
committerMax Kellermann <max@duempel.org>2009-11-07 18:55:16 +0100
commite3af0032b236dc52d4a74c4d740e57a1f6d520aa (patch)
tree3984233a9b639e71ad80b4f6598539de3a27a008 /src/output/fifo_output_plugin.c
parent9b21152600071ec46c021c8ba3b2ef69c90f039f (diff)
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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.
Diffstat (limited to 'src/output/fifo_output_plugin.c')
-rw-r--r--src/output/fifo_output_plugin.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/output/fifo_output_plugin.c b/src/output/fifo_output_plugin.c
index d3145748f..0217c2675 100644
--- a/src/output/fifo_output_plugin.c
+++ b/src/output/fifo_output_plugin.c
@@ -20,6 +20,7 @@
#include "output_api.h"
#include "utils.h"
#include "timer.h"
+#include "fd_util.h"
#include <glib.h>
@@ -152,7 +153,7 @@ fifo_open(struct fifo_data *fd, GError **error)
if (!fifo_check(fd, error))
return false;
- fd->input = open(fd->path, O_RDONLY|O_NONBLOCK);
+ fd->input = open_cloexec(fd->path, O_RDONLY|O_NONBLOCK);
if (fd->input < 0) {
g_set_error(error, fifo_output_quark(), errno,
"Could not open FIFO \"%s\" for reading: %s",
@@ -161,7 +162,7 @@ fifo_open(struct fifo_data *fd, GError **error)
return false;
}
- fd->output = open(fd->path, O_WRONLY|O_NONBLOCK);
+ fd->output = open_cloexec(fd->path, O_WRONLY|O_NONBLOCK);
if (fd->output < 0) {
g_set_error(error, fifo_output_quark(), errno,
"Could not open FIFO \"%s\" for writing: %s",