mirror of https://github.com/mpv-player/mpv
9d8573cfe8
The "run" input command does fork+exec to spawn child processes. But it doesn't cleanup the child processes, so they are left as zombies until mpv terminates. Leaving zombie processes around is not very nice, so employ a simple trick to let pid 1 take care of this: we fork twice, and when the first fork exits, the second fork becomes orphaned and becomes pid 1's child. It becomes pid 1's responsibility to cleanup the process. The advantage is that we don't need extra logic to cleanup the spawned process, which could have an arbitrary lifetime. This is e.g. described here: http://yarchive.net/comp/zombie_process.html Also use _exit() instead of exit(). It's not really sane to run cleanup handlers (atexit() etc.) inside a forked process. |
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|---|---|---|
| .. | ||
| input | ||
| player | ||
| asxparser.c | ||
| asxparser.h | ||
| av_common.c | ||
| av_common.h | ||
| av_log.c | ||
| av_log.h | ||
| av_opts.c | ||
| av_opts.h | ||
| bstr.c | ||
| bstr.h | ||
| charset_conv.c | ||
| charset_conv.h | ||
| codecs.c | ||
| codecs.h | ||
| cpudetect.c | ||
| cpudetect.h | ||
| encode.h | ||
| encode_lavc.c | ||
| encode_lavc.h | ||
| m_config.c | ||
| m_config.h | ||
| m_option.c | ||
| m_option.h | ||
| m_property.c | ||
| m_property.h | ||
| mp_common.c | ||
| mp_common.h | ||
| mp_memory_barrier.h | ||
| mp_msg.c | ||
| mp_msg.h | ||
| mp_ring.c | ||
| mp_ring.h | ||
| mp_talloc.h | ||
| mpv_global.h | ||
| options.c | ||
| options.h | ||
| parser-cfg.c | ||
| parser-cfg.h | ||
| parser-mpcmd.c | ||
| parser-mpcmd.h | ||
| path.c | ||
| path.h | ||
| playlist.c | ||
| playlist.h | ||
| playlist_parser.c | ||
| playlist_parser.h | ||
| resolve.h | ||
| resolve_quvi.c | ||
| resolve_quvi9.c | ||
| version.c | ||