[Bug 750651] New: [rtspsrc] socket descriptors not freed on unrefing parent pipeline

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=750651

            Bug ID: 750651
           Summary: [rtspsrc] socket descriptors not freed on unrefing
                    parent pipeline
    Classification: Platform
           Product: GStreamer
           Version: 1.4.5
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: yuuki at ya.ru
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

If connection to RTSP source can't be established, I do unref pipeline and
create new one. Each of this recreations of pipeline spawns new socket
descriptors in /proc/<pid>/fd and total number of them is grows. After hundred
or so such cycles my code crashes.

If I run my code under valgrind, it is not crashed, but valgrind says instead:

==26342== Warning: invalid file descriptor 1031 in syscall
socketcall.socketpair()
==26342== Warning: invalid file descriptor 1031 in syscall open()
==26342== Warning: invalid file descriptor 1031 in syscall open()
==26342== Warning: invalid file descriptor 1032 in syscall write()

Stopping app gives:

==26342== 37,382 (8,000 direct, 29,382 indirect) bytes in 500 blocks are
definitely lost in loss record 3,638 of 3,666
==26342==    at 0x4C2BBA0: malloc (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==26342==    by 0x5198799: g_malloc (in
/lib/x86_64-linux-gnu/libglib-2.0.so.0.4400.0)
==26342==    by 0x51AF6AF: g_slice_alloc (in
/lib/x86_64-linux-gnu/libglib-2.0.so.0.4400.0)
==26342==    by 0x517E44C: g_error_new_literal (in
/lib/x86_64-linux-gnu/libglib-2.0.so.0.4400.0)
==26342==    by 0x517E71D: g_set_error_literal (in
/lib/x86_64-linux-gnu/libglib-2.0.so.0.4400.0)
==26342==    by 0x8081F67: g_cancellable_set_error_if_cancelled (in
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0.4400.0)
==26342==    by 0x80BF73A: g_socket_condition_timed_wait (in
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0.4400.0)
==26342==    by 0x80C2361: g_socket_connect (in
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0.4400.0)
==26342==    by 0x80C51F5: g_socket_client_connect (in
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0.4400.0)
==26342==    by 0x80C5799: g_socket_client_connect_to_uri (in
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0.4400.0)
==26342==    by 0x85F2B5B: gst_rtsp_connection_connect (in
/usr/lib/x86_64-linux-gnu/libgstrtsp-1.0.so.0.405.0)
==26342==    by 0x7E2B8C1: gst_rtsp_conninfo_connect (in
/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstrtsp.so)

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