osx man page for pthread_kill

PTHREAD_KILL(2) 					      BSD System Calls Manual						   PTHREAD_KILL(2)

NAME
     pthread_kill -- send a signal to a specified thread

SYNOPSIS
     #include <signal.h>

     int
     pthread_kill(pthread_t thread, int sig);

DESCRIPTION
     The pthread_kill() function sends a signal, specified by sig, to a thread, specified by thread.  If sig is 0, error checking is performed,
     but no signal is actually sent.

RETURN VALUES
     If successful, pthread_kill() returns 0.  Otherwise, an error number is returned.

ERRORS
     pthread_kill() will fail if:

     [EINVAL]		sig is an invalid or unsupported signal number.

     [ESRCH]		thread is an invalid thread ID.

LEGACY SYNOPSIS
     #include <pthread.h>
     #include <signal.h>

     The include file <pthread.h> is necessary.

SEE ALSO
     kill(2), pthread_self(3), raise(3), compat(5)

STANDARDS
     pthread_kill() conforms to ISO/IEC 9945-1:1996 (``POSIX.1'')

BSD
								   Feb 05, 2002 							       BSD