# LibHTTP API Reference ### `httplib_pthread_cond_signal( cv );` ### Parameters | Parameter | Type | Description | | :--- | :--- | :--- | |**`cv`**|`pthread_cond_t *`|The condition which a thread is waiting on| ### Return Value | Type | Description | | :--- | :--- | |`int`|Integer value with a success or error code of the function call| ### Description The platform independent function `httplib_pthread_cond_signal()` unlocks one thread waiting on a specific condition. The function returns **0** when successful and an error code otherwise. On systems which support it, the functionality is implemented as a direct call to `pthread_cond_signal()`. Otherwise an OS dependent alternative implementation is used to emulate the same behavior. ### See Also * [`httplib_pthread_cond_broadcast();`](httplib_pthread_cond_broadcast.md) * [`httplib_pthread_cond_destroy();`](httplib_pthread_cond_destroy.md) * [`httplib_pthread_cond_init();`](httplib_pthread_cond_init.md) * [`httplib_pthread_cond_timedwait();`](httplib_pthread_cond_timedwait.md) * [`httplib_pthread_cond_wait();`](httplib_pthread_cond_wait.md)