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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)):
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
On success, pthread_sigqueue() returns 0; on error, it returns an error
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.
The pthread_sigqueue() function first appeared in glibc 2.11.
This function is a GNU extension.
rt_tgsigqueueinfo(2), sigaction(2), pthread_sigmask(3), sigqueue(3),
sigwait(3), pthreads(7), signal(7)
Linux 2012-08-19 PTHREAD_SIGQUEUE(3)