NAME

       pthread_sigqueue - queue a signal and data to a thread

SYNOPSIS

       #include <pthread.h>

       int pthread_sigqueue(pthread_t thread, int sig,
                            const union sigval value);

       Compile and link with -pthread.

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       pthread_sigqueue(): _GNU_SOURCE

DESCRIPTION

       The pthread_sigqueue() function performs a similar task to sigqueue(3), but, rather than sending a signal
       to a process, it sends a signal to a thread in the same process as the calling thread.

       The  thread argument is the ID of a thread in the same process as the caller.  The sig argument specifies
       the signal to be sent.  The value argument specifies data to accompany the signal;  see  sigqueue(3)  for
       details.

RETURN VALUE

       On success, pthread_sigqueue() returns 0; on error, it returns an error number.

ERRORS

       EAGAIN The  limit  of  signals  which  may  be  queued  has  been  reached.   (See  signal(7) for further
              information.)

       EINVAL sig was invalid.

       ENOSYS pthread_sigqueue() is not supported on this system.

       ESRCH  thread is not valid.

VERSIONS

       The pthread_sigqueue() function first appeared in glibc 2.11.

CONFORMING TO

       This function is a GNU extension.

SEE ALSO

       rt_tgsigqueueinfo(2), sigaction(2), pthread_sigmask(3), sigqueue(3), sigwait(3), pthreads(7), signal(7)

COLOPHON

       This page is part of release 3.54 of the Linux man-pages project.  A  description  of  the  project,  and
       information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.

Linux                                              2012-08-19                                PTHREAD_SIGQUEUE(3)