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PTHREAD_SIGQUEUE(3)		    Linux Programmer's Manual		      PTHREAD_SIGQUEUE(3)

       pthread_sigqueue - queue a signal and data to a thread

       #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

       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.

       On success, pthread_sigqueue() returns 0; on error, it returns an error number.

       EAGAIN The limit of signals which may be queued has been reached.  (See signal(7) for fur-
	      ther 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)

       This  page  is  part of release 3.55 of the Linux man-pages project.  A description of the
       project,    and	  information	 about	  reporting    bugs,	can    be    found     at

Linux					    2012-08-19			      PTHREAD_SIGQUEUE(3)
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