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pthread_kill.c
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pthread_kill.c
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/*
* pthread_kill.c
*
* Description:
* This translation unit implements the pthread_kill routine.
*
* --------------------------------------------------------------------------
*
* Pthreads-embedded (PTE) - POSIX Threads Library for embedded systems
* Copyright(C) 2008 Jason Schmidlapp
*
* Contact Email: [email protected]
*
*
* Based upon Pthreads-win32 - POSIX Threads Library for Win32
* Copyright(C) 1998 John E. Bossom
* Copyright(C) 1999,2005 Pthreads-win32 contributors
*
* Contact Email: [email protected]
*
* The original list of contributors to the Pthreads-win32 project
* is contained in the file CONTRIBUTORS.ptw32 included with the
* source code distribution. The list can also be seen at the
* following World Wide Web location:
* http://sources.redhat.com/pthreads-win32/contributors.html
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library in the file COPYING.LIB;
* if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pthread.h"
#include "implement.h"
int
pthread_kill (pthread_t thread, int sig)
/*
* ------------------------------------------------------
* DOCPUBLIC
* This function requests that a signal be delivered to the
* specified thread. If sig is zero, error checking is
* performed but no signal is actually sent such that this
* function can be used to check for a valid thread ID.
*
* PARAMETERS
* thread reference to an instances of pthread_t
* sig signal. Currently only a value of 0 is supported.
*
*
* DESCRIPTION
* This function requests that a signal be delivered to the
* specified thread. If sig is zero, error checking is
* performed but no signal is actually sent such that this
* function can be used to check for a valid thread ID.
*
* RESULTS
* ESRCH the thread is not a valid thread ID,
* EINVAL the value of the signal is invalid
* or unsupported.
* 0 the signal was successfully sent.
*
* ------------------------------------------------------
*/
{
int result = 0;
pte_thread_t * tp;
pte_osMutexLock (pte_thread_reuse_lock);
tp = (pte_thread_t *) thread;
if (0 == tp
|| 0 == tp->threadId)
{
result = ESRCH;
}
pte_osMutexUnlock(pte_thread_reuse_lock);
if (0 == result && 0 != sig)
{
/*
* Currently does not support any signals.
*/
result = EINVAL;
}
return result;
} /* pthread_kill */