Man page - pthread_sigqueue(3)

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Manual

pthread_sigqueue

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
ATTRIBUTES
VERSIONS
STANDARDS
HISTORY
SEE ALSO

NAME

pthread_sigqueue - queue a signal and data to a thread

LIBRARY

POSIX threads library ( libpthread , -lpthread )

SYNOPSIS

#include <signal.h>
#include <pthread.h>

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

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.

ATTRIBUTES

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

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VERSIONS

The glibc implementation of pthread_sigqueue () gives an error ( EINVAL ) on attempts to send either of the real-time signals used internally by the NPTL threading implementation. See nptl (7) for details.

STANDARDS

GNU.

HISTORY

glibc 2.11.