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/*
* pthread_kill.c
*
* Description:
* This translation unit implements the pthread_kill routine.
*
* --------------------------------------------------------------------------
*
* Pthreads4w - POSIX Threads Library for Win32
* Copyright(C) 1998 John E. Bossom
* Copyright(C) 1999-2018, Pthreads4w contributors
*
* Homepage: https://sourceforge.net/projects/pthreads4w/
*
* The current list of contributors is contained
* in the file CONTRIBUTORS included with the source
* code distribution. The list can also be seen at the
* following World Wide Web location:
* https://sourceforge.net/p/pthreads4w/wiki/Contributors/
*
* This file is part of Pthreads4w.
*
* Pthreads4w is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pthreads4w 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Pthreads4w. If not, see <http://www.gnu.org/licenses/>. *
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "pthread.h"
#include "implement.h"
/*
* Not needed yet, but defining it should indicate clashes with build target
* environment that should be fixed.
*/
#if !defined(WINCE)
# include <signal.h>
#endif
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;
ptw32_thread_t * tp;
ptw32_mcs_local_node_t node;
ptw32_mcs_lock_acquire(&ptw32_thread_reuse_lock, &node);
tp = (ptw32_thread_t *) thread.p;
if (NULL == tp
|| thread.x != tp->ptHandle.x
|| NULL == tp->threadH)
{
result = ESRCH;
}
ptw32_mcs_lock_release(&node);
if (0 == result && 0 != sig)
{
/*
* Currently does not support any signals.
*/
result = EINVAL;
}
return result;
} /* pthread_kill */
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