PTHREAD_KILL(3) Linux Programmer's Manual PTHREAD_KILL(3) NAME pthread_kill - send a signal to a thread SYNOPSIS #include int pthread_kill(pthread_t thread, int sig); Compile and link with -pthread. DESCRIPTION The pthread_kill() function sends the signal sig to thread, another thread in the same process as the caller. The signal is asynchronously directed to thread. If sig is 0, then no signal is sent, but error checking is still per- formed; this can be used to check for the existence of a thread ID. RETURN VALUE On success, pthread_kill() returns 0; on error, it returns an error number, and no signal is sent. ERRORS ESRCH No thread with the ID thread could be found. EINVAL An invalid signal was specified. CONFORMING TO POSIX.1-2001. NOTES Signal dispositions are process-wide: if a signal handler is installed, the handler will be invoked in the thread thread, but if the disposi- tion of the signal is "stop", "continue", or "terminate", this action will affect the whole process. SEE ALSO kill(2) sigaction(2), sigpending(2), pthread_self(3), pthread_sig- mask(3), raise(3), pthreads(7), signal(7) COLOPHON This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2009-01-28 PTHREAD_KILL(3)