SDL_CondWait

SDL_CondWait 等待一个条件变量

Name

SDL_CondWait -- Wait on a condition variable

Synopsis

#include "SDL.h" #include "SDL_thread.h" int SDL_CondWait(SDL_cond *cond, SDL_mutex *mut);

Description

Unlock the provided mutex and wait for another thread to call  or  on the condition variable cond, then re-lock the mutex and return. The mutex must be locked before entering this function. Returns 0 when it is signalled, or -1 on an error.

解锁传递来的mutex，等待其他的线程调用 or  设置条件变量 cond。然后解锁mutex，并返回。

mutex是在进入SDL_ConWait之前就被锁定的。

SDL_ConWait被signalled，那么返回0，代表成功。否则返回-1或者其他 ，代表出错。

See Also