THR_KILL(3C) Standard C Library Functions THR_KILL(3C)


NAME


thr_kill - send a signal to a thread

SYNOPSIS


cc -mt [ flag... ] file... [ library... ]
#include <signal.h>
#include <thread.h>

int thr_kill(thread_t thread, int sig);


DESCRIPTION


The thr_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 thr_kill(). If sig is 0, a validity check is done for the
existence of the target thread; no signal is sent.

RETURN VALUES


Upon successful completion, thr_kill() returns 0. Otherwise, an error
number is returned. In the event of failure, no signal is sent.

ERRORS


The thr_kill() function will fail if:

EINVAL
The sig argument value is not zero and is an invalid or an
unsupported signal number.


ESRCH
No thread was found that corresponded to the thread designated
by thread ID.


ATTRIBUTES


See attributes(5) for descriptions of the following attributes:


+---------------+-------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-------------------+
|MT-Level | Async-Signal-Safe |
+---------------+-------------------+

SEE ALSO


kill(2), sigaction(2), raise(3C), signal.h(3HEAD), thr_self(3C),
attributes(5), standards(5)


March 23, 2005 THR_KILL(3C)