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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 another process, it sends a signal
       to another thread in the same process as the calling thread.

       The  thread argument is the ID of another 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),     sigqueue(3),     sigwait(3),
       pthread_sigmask(3), pthreads(7), signal(7)

COLOPHON

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       description of the project, and information about reporting  bugs,  can
       be found at http://man7.org/linux/man-pages/.