Multithreaded Programming Guide

Continuing a Suspended Thread

thr_continue(3C) resumes the execution of a suspended thread. Once a suspended thread is continued, subsequent calls to thr_continue() have no effect.

thr_continue Syntax

#include <thread.h>

int thr_continue(thread_t tid);

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

pthread_t tid as defined in pthreads is the same as thread_t tid in Solaris threads. tid values can be used interchangeably either by assignment or through the use of casts.

thread_t tid; /* tid from thr_create()*/

/* pthreads equivalent of Solaris tid from thread created */
/* with pthread_create()*/
pthread_t ptid;

int ret;

ret = thr_continue(tid);

/* using pthreads ID variable with a cast */
ret = thr_continue((thread_t) ptid) 

thr_continue Return Values

thr_continue() returns zero after completing successfully. Any other return value indicates that an error occurred. When the following condition occurs, thr_continue() fails and returns the corresponding value.



tid cannot be found in the current process.