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.TH PTHREAD_TESTCANCEL 3 2017-09-15 "Linux" "Linux Programmer's Manual"
.SH NAME
pthread_testcancel \- request delivery of any pending cancellation request
.SH SYNOPSIS
.nf
.B #include <pthread.h>
.PP
.B void pthread_testcancel(void);
.PP
Compile and link with \fI\-pthread\fP.
.fi
.SH DESCRIPTION
Calling
.BR pthread_testcancel ()
creates a cancellation point within the calling thread,
so that a thread that is otherwise executing code that contains
no cancellation points will respond to a cancellation request.
.PP
If cancelability is disabled (using
.BR pthread_setcancelstate (3)),
or no cancellation request is pending,
then a call to
.BR pthread_testcancel ()
has no effect.
.SH 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.
.SH ERRORS
This function always succeeds.
.\" SH VERSIONS
.\" Available since glibc 2.0
.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lbw20 lb lb
l l l.
Interface	Attribute	Value
T{
.BR pthread_testcancel ()
T}	Thread safety	MT-Safe
.TE
.SH CONFORMING TO
POSIX.1-2001, POSIX.1-2008.
.SH EXAMPLE
See
.BR pthread_cleanup_push (3).
.SH SEE ALSO
.BR pthread_cancel (3),
.BR pthread_cleanup_push (3),
.BR pthread_setcancelstate (3),
.BR pthreads (7)
.SH COLOPHON
This page is part of release 5.04 of the Linux
.I man-pages
project.
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
\%https://www.kernel.org/doc/man\-pages/.