pthread_cancel(3C)					   Standard C Library Functions 					pthread_cancel(3C)

NAME

       pthread_cancel - cancel execution of a thread

SYNOPSIS

       cc -mt [ flag... ] file... -lpthread [ library... ]
       #include <pthread.h>

       int pthread_cancel(pthread_t target_thread);

DESCRIPTION

       The pthread_cancel() function requests that target_thread be canceled.

       By default, cancellation is deferred until target_thread reaches a cancellation point. See cancellation(5).

       Cancellation  cleanup handlers for target_thread are called when the cancellation is acted on. Upon return of the last cancellation cleanup
       handler, the thread-specific data destructor functions are called for target_thread. target_thread is terminated when the  last	destructor
       function returns.

       A  thread  acting on a cancellation request runs with all signals blocked. All thread termination functions, including cancellation cleanup
       handlers and thread-specific data destructor functions, are called with all signals blocked.

       The cancellation processing in  target_thread runs asynchronously with respect to the calling thread returning from pthread_cancel().

RETURN VALUES

       If successful, the pthread_cancel() function returns  0. Otherwise, an error number is returned to indicate the error.

ERRORS

       The  pthread_cancel() function may fail if:

       ESRCH	No thread was found with an ID corresponding to that specified by the given thread ID, target_thread.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+
       |Standard		     |See standards(5). 	   |
       +-----------------------------+-----------------------------+

SEE ALSO

       pthread_cleanup_pop(3C), pthread_cleanup_push(3C), pthread_cond_wait(3C), pthread_cond_timedwait(3C),  pthread_exit(3C),  pthread_join(3C),
       pthread_setcancelstate(3C),  pthread_setcanceltype(3C),	pthread_testcancel(3C),  setjmp(3C), attributes(5), cancellation(5), condition(5),
       standards(5)

NOTES

       See cancellation(5) for a discussion of cancellation concepts.

SunOS 5.11							    2 Nov 2007							pthread_cancel(3C)