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Check for fork failing and make sure cache_uninit always frees the cache data

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even if fork failed.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@30393 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2010-01-23 10:50:50 +00:00
parent a281ccb094
commit 7afaecc111
1 changed files with 10 additions and 1 deletions
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11
stream/cache2.c
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@ -15,6 +15,7 @@
#include <signal.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include "osdep/shmem.h"
#include "osdep/timer.h"
@ -284,13 +285,14 @@ cache_vars_t* cache_init(int size,int sector){
void cache_uninit(stream_t *s) {
cache_vars_t* c = s->cache_data;
if(!s->cache_pid) return;
if(s->cache_pid) {
#if defined(__MINGW32__) || defined(PTHREAD_CACHE) || defined(__OS2__)
cache_do_control(s, -2, NULL);
#else
kill(s->cache_pid,SIGKILL);
waitpid(s->cache_pid,NULL,0);
#endif
}
if(!c) return;
#if defined(__MINGW32__) || defined(PTHREAD_CACHE) || defined(__OS2__)
free(c->stream);
@ -334,6 +336,8 @@ int stream_enable_cache(stream_t *stream,int size,int min,int seek_limit){
#if !defined(__MINGW32__) && !defined(PTHREAD_CACHE) && !defined(__OS2__)
if((stream->cache_pid=fork())){
if ((pid_t)stream->cache_pid == -1)
stream->cache_pid = 0;
#else
{
stream_t* stream2=malloc(sizeof(stream_t));
@ -351,6 +355,11 @@ int stream_enable_cache(stream_t *stream,int size,int min,int seek_limit){
}
#endif
#endif
if (!stream->cache_pid) {
mp_msg(MSGT_CACHE, MSGL_ERR,
"Starting cache process/thread failed: %s.\n", strerror(errno));
return 0;
}
// wait until cache is filled at least prefill_init %
mp_msg(MSGT_CACHE,MSGL_V,"CACHE_PRE_INIT: %"PRId64" [%"PRId64"] %"PRId64" pre:%d eof:%d \n",
(int64_t)s->min_filepos,(int64_t)s->read_filepos,(int64_t)s->max_filepos,min,s->eof);