NAME

thr_suspend, thr_continue − suspend or continue thread execution

SYNOPSIS

#include <thread.h>

int thr_suspend(thread_t target_thread);

int thr_continue(thread_t target_thread);

MT-LEVEL

MT-Safe

DESCRIPTION

thr_suspend() immediately suspends the execution of the thread specified by target_thread. On successful return from thr_suspend(), the suspended thread is no longer executing.  Once a thread is suspended, subsequent calls to thr_suspend() have no effect. 

thr_continue() resumes the execution of a suspended thread.  Once a suspended thread is continued, subsequent calls to thr_continue() have no effect. 

A suspended thread will not be awakened by a signal.  The signal stays pending until the execution of the thread is resumed by thr_continue(). 

RETURN VALUES

Zero is returned when successful.  A non-zero value indicates an error. 

ERRORS

If any of the following conditions are detected, thr_suspend() or thr_continue() fails and returns the corresponding value:

ESRCH target_thread cannot be found in the current process. 

SEE ALSO

thr_create(3T)

SunOS 5.4  —  Last change: 22 Jan 1993