cmdutils: wrap exit explicitly

Some C runtime implementations deadlock when calling threading functions
on the atexit() handler.

Use a simpler wrapper similar to av_log to call the cleanup function
before exit.

Bug-Id: 523

1 files changed, 10 insertions, 0 deletions

diff --git a/cmdutils.h b/cmdutils.h
index 2372b3f387..997ba1c750 100644
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -45,6 +45,16 @@ extern struct SwsContext *sws_opts;
 extern AVDictionary *format_opts, *codec_opts, *resample_opts;
 
 /**
+ * Register a program-specific cleanup routine.
+ */
+void register_exit(void (*cb)(int ret));
+
+/**
+ * Wraps exit with a program-specific cleanup routine.
+ */
+void exit_program(int ret);
+
+/**
  * Initialize the cmdutils option system, in particular
  * allocate the *_opts contexts.
  */