pthread conditional variable

Question

I\'m implementing a thread with a queue of tasks. As soon as as the first task is added to the queue the thread starts running it.

Should I use pthread condition var

Answer 1

No effects.

If you check how pthread_condt_signal is implemented, the condt uses several counters to check whether there are any waiting threads to wake up. e.g., glibc-nptl

 /* Are there any waiters to be woken?  */
 if (cond->__data.__total_seq > cond->__data.__wakeup_seq){
    ...
 }