thr_suspend(3T) 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. Signals cannot awaken the suspended thread; they remain pending until the thread resumes execution.
#include <thread.h> int thr_suspend(thread_t tid);
In the following synopsis,
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_suspend(tid); /* using pthreads ID variable with a cast */ ret = thr_suspend((thread_t) ptid);
thr_suspend() returns zero after completing successfully. Any other returned value indicates that an error occurred. When the following condition occurs, thr_suspend() fails and returns the corresponding value.