Yielding the Control of Execution

Syntax

A thread can yield its execution to other threads. This is done by function thr_yield():

void  thr_yield(void);

• This function does not require any arguments and returns nothing.
• The function causes the calling thread to yield its execution in favor of another thread. It is equivalent to say that the calling thread is put back to the ready queue and a thread from the ready queue is picked as the candidate for execution. Note that it is possible that the calling thread is picked if the ready queue is empty when thr_yield() is called.
• Since the calling thread is temporarily suspended, one may consider it entering a "sleeping" state for an unspecified period. In this way, it ``simulates'' sleep().