MirOS Manual: pthread_cancel(3)

PTHREAD_CANCEL(3)          BSD Programmer's Manual           PTHREAD_CANCEL(3)


     pthread_cancel - cancel execution of a thread


     #include <pthread.h>

     pthread_cancel(pthread_t thread);


     The pthread_cancel() function requests that thread be cancelled. The tar-
     get thread's cancelability state and type determines when the cancella-
     tion takes effect. When the cancellation is acted on, the cancellation
     cleanup handlers for thread are called. When the last cancellation clean-
     up handler returns, the thread-specific data destructor functions will be
     called for thread. When the last destructor function returns, thread will
     be terminated.

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

     A status of PTHREAD_CANCELED is made available to any threads joining
     with the target. The symbolic constant PTHREAD_CANCELED expands to a con-
     stant expression of type (void *) whose value matches no pointer to an
     object in memory nor the value NULL.


     If successful, the pthread_cancel() functions will return zero. Otherwise
     an error number will be returned to indicate the error.


     pthread_cancel() will fail if:

     [ESRCH]       No thread could be found corresponding to that specified by
                   the given thread ID.


     pthread_cleanup_pop(3), pthread_cleanup_push(3), pthread_exit(3),
     pthread_join(3), pthread_setcancelstate(3), pthread_setcanceltype(3),


     pthread_cancel() conforms to ISO/IEC 9945-1:1996 ("POSIX").

MirOS BSD #10-current          January 17, 1999                              1

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