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pthread_kill(3c) [opensolaris man page]

pthread_kill(3C)					   Standard C Library Functions 					  pthread_kill(3C)

NAME
pthread_kill - send a signal to a thread SYNOPSIS
cc -mt [ flag... ] file... -lpthread [ library... ] #include <signal.h> #include <pthread.h> int pthread_kill(pthread_t thread, int sig); DESCRIPTION
The pthread_kill() function sends the sig signal to the thread designated by thread. The thread argument must be a member of the same process as the calling thread. The sig argument must be one of the signals listed in signal.h(3HEAD), with the exception of SIGCANCEL being reserved and off limits to pthread_kill(). If sig is 0, a validity check is performed for the existence of the target thread; no signal is sent. RETURN VALUES
Upon successful completion, the function returns a value of 0. Otherwise the function returns an error number. If the pthread_kill() func- tion fails, no signal is sent. ERRORS
The pthread_kill() function will fail if: ESRCH No thread could be found corresponding to that specified by the given thread ID. EINVAL The value of the sig argument is an invalid or unsupported signal number. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
kill(1), pthread_self(3C), pthread_sigmask(3C), raise(3C), attributes(5), standards(5) SunOS 5.11 23 Mar 2005 pthread_kill(3C)

Check Out this Related Man Page

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

NAME
pthread_kill - send a signal to a thread SYNOPSIS
#include <signal.h> int pthread_kill(pthread_t thread, int sig); Compile and link with -pthread. Feature Test Macro Requirements for glibc (see feature_test_macros(7)): pthread_kill(): _POSIX_C_SOURCE >= 199506L || _XOPEN_SOURCE >= 500 DESCRIPTION
The pthread_kill() function sends the signal sig to thread, a 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 performed. RETURN VALUE
On success, pthread_kill() returns 0; on error, it returns an error number, and no signal is sent. ERRORS
EINVAL An invalid signal was specified. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +---------------+---------------+---------+ |Interface | Attribute | Value | +---------------+---------------+---------+ |pthread_kill() | Thread safety | MT-Safe | +---------------+---------------+---------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008. NOTES
Signal dispositions are process-wide: if a signal handler is installed, the handler will be invoked in the thread thread, but if the dispo- sition of the signal is "stop", "continue", or "terminate", this action will affect the whole process. The glibc implementation of pthread_kill() gives an error (EINVAL) on attempts to send either of the real-time signals used internally by the NPTL threading implementation. See nptl(7) for details. POSIX.1-2008 recommends that if an implementation detects the use of a thread ID after the end of its lifetime, pthread_kill() should return the error ESRCH. The glibc implementation returns this error in the cases where an invalid thread ID can be detected. But note also that POSIX says that an attempt to use a thread ID whose lifetime has ended produces undefined behavior, and an attempt to use an invalid thread ID in a call to pthread_kill() can, for example, cause a segmentation fault. SEE ALSO
kill(2), sigaction(2), sigpending(2), pthread_self(3), pthread_sigmask(3), raise(3), pthreads(7), signal(7) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. Linux 2017-09-15 PTHREAD_KILL(3)
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