pthread_sigqueue(3) Library Functions Manual pthread_sigqueue(3) pthread_sigqueue - POSIX (libpthread -lpthread) #include #include int pthread_sigqueue(pthread_t thread, int sig, const union sigval value); glibc ( feature_test_macros(7)): pthread_sigqueue(): _GNU_SOURCE pthread_sigqueue() sigqueue(3) . thread . sig . value sigqueue(3) . pthread_sigqueue() 0 . EAGAIN . ( signal(7) .) EINVAL sig . ENOSYS pthread_sigqueue() . ESRCH thread . attributes(7). +------------+------------------------------------+--------------------+ || | | +------------+------------------------------------+--------------------+ |pthread_sigqueue()| | MT-Safe | | | | | +------------+------------------------------------+--------------------+ glibc pthread_sigqueue() (EINVAL) NPTL. nptl(7) . GNU. glibc 2.11. rt_tgsigqueueinfo(2), sigaction(2), pthread_sigmask(3), sigqueue(3), sigwait(3), pthreads(7), signal(7) 3 . . : . 6.18 8 2026 pthread_sigqueue(3)