PTHREAD_TESTCANCEL(3)                                                   Linux Programmer's Manual                                                  PTHREAD_TESTCANCEL(3)

NAME
       pthread_testcancel - request delivery of any pending cancellation request

SYNOPSIS
       #include <pthread.h>

       void pthread_testcancel(void);

       Compile and link with -pthread.

DESCRIPTION
       Calling pthread_testcancel() creates a cancellation point within the calling thread, so that a thread that is otherwise executing code that contains no cancella‐
       tion points will respond to a cancellation request.

       If cancelability is disabled (using pthread_setcancelstate(3)), or no cancellation request is pending, then a call to pthread_testcancel() has no effect.

RETURN VALUE
       This function does not return a value.  If the calling thread is canceled as a consequence of a call to this function, then the function does not return.

ERRORS
       This function always succeeds.

ATTRIBUTES
       For an explanation of the terms used in this section, see attributes(7).

       ┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┬───────────────┬─────────┐
       │Interface                                                                                                                             │ Attribute     │ Value   │
       ├──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤
       │pthread_testcancel()                                                                                                                  │ Thread safety │ MT-Safe │
       └──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘

CONFORMING TO
       POSIX.1-2001, POSIX.1-2008.

EXAMPLES
       See pthread_cleanup_push(3).

SEE ALSO
       pthread_cancel(3), pthread_cleanup_push(3), pthread_setcancelstate(3), pthreads(7)

Linux                                                                          2021-03-22                                                          PTHREAD_TESTCANCEL(3)