pthread_sigqueue - queue a signal and data to a thread
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
() function performs a similar task to
(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.
argument is the ID of a thread in the same process as the
caller. The sig
argument specifies the signal to be sent. The
argument specifies data to accompany the signal; see
(3) for details.
On success, pthread_sigqueue
() returns 0; on error, it returns an error
- The limit of signals which may be queued has been reached. (See
signal(7) for further information.)
- sig was invalid.
- pthread_sigqueue() is not supported on this system.
- thread is not valid.
() function first appeared in glibc 2.11.
For an explanation of the terms used in this section, see attributes
This function is a GNU extension.
The glibc implementation of pthread_sigqueue
() gives an error
) on attempts to send either of the real-time signals used
internally by the NPTL threading implementation. See nptl