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

This page is part of release 3.35 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://man7.org/linux/man-pages/.