ns_cond - Operate on condition variables
This command provides a mechanism to manipulate condition variables.
Wakes up all threads waiting on the specified object.
Initializes a new condition variable and returns a handle to it.
Destroys the condition variable and frees any resources it was using. NOTE: No threads must be waiting on the condition variable, or else the behavior is undefined and will likely crash the server.
Wakes up one thread waiting on the specified object. If more than one thread is waiting, only one is woken up. If no threads are waiting, nothing happens.
Waits on a condition variable. timeout is an absolute time in Unix seconds when to wait until. If not specified, timeout defaults to 0, which causes the command to not sleep at all. Returns 1 on success or 0 on timeout.
Waits on a condition variable. If timeout is not specified, the thread will sleep indefinitely. Otherwise, the thread will wait up to timeout seconds. Returns 1 on success or 0 on timeout.