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33 .Nd wake up the suspended thread
39 .Fn thr_wake "long id"
42 This function is intended for implementing threading.
43 Normal applications should use
44 .Xr pthread_cond_timedwait 3
46 .Xr pthread_cond_broadcast 3
47 for typical safe suspension with cooperation of the thread
49 .Xr pthread_suspend_np 3
51 .Xr pthread_resume_np 3
52 in some specific situations, instead.
55 Passing the thread identifier of the calling thread
62 sets a thread's flag to cause the next signal-interruptible sleep
63 of that thread in the kernel to fail immediately with the
66 The flag is cleared by an interruptible sleep attempt or by a call to
68 This is used by the system threading library to implement cancellation.
72 is not equal to the current thread identifier, the specified thread is
73 woken up if suspended by the
76 If the thread is not suspended at the time of the
78 call, the wake is remembered and the next attempt of the thread to
79 suspend itself with the
81 results in immediate return with success.
82 Only one wake is remembered.
88 operation returns these errors:
91 The specified thread was not found or does not belong to the process
92 of the calling thread.
98 .Xr pthread_cancel 3 ,
99 .Xr pthread_resume_np 3 ,
100 .Xr pthread_suspend_np 3
104 system call is non-standard and is used by
113 system call first appeared in