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msg: add some comments about thread-safety

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This commit is contained in:
wm4 2013-12-22 12:29:16 +01:00
parent a0e89daf49
commit 38be9d5fed
1 changed files with 6 additions and 0 deletions
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6
common/msg.c
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@ -101,6 +101,7 @@ static void update_loglevel(struct mp_log *log)
}
// Return whether the message at this verbosity level would be actually printed.
// Thread-safety: see mp_msg().
bool mp_msg_test(struct mp_log *log, int lev)
{
mp_memory_barrier();
@ -173,6 +174,8 @@ void mp_msg_va(struct mp_log *log, int lev, const char *format, va_list va)
// parent's name. If the name starts with "/", the parent's name is not
// prefixed (except in verbose mode), and if it starts with "!", the name is
// not printed at all (except in verbose mode).
// Thread-safety: fully thread-safe, but keep in mind that talloc is not (so
// talloc_ctx must be owned by the current thread).
struct mp_log *mp_log_new(void *talloc_ctx, struct mp_log *parent,
const char *name)
{
@ -262,6 +265,9 @@ void mp_msg_uninit(struct mpv_global *global)
global->log = NULL;
}
// Thread-safety: fully thread-safe, but keep in mind that the lifetime of
// log must be guaranteed during the call.
// Never call this from signal handlers.
void mp_msg(struct mp_log *log, int lev, const char *format, ...)
{
va_list va;