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/************************************************************************
* sched/pthread_kill.c
*
* Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************/
/************************************************************************
* Included Files
************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <signal.h>
#include <pthread.h>
#include <errno.h>
#include <debug.h>
/************************************************************************
* Global Functions
************************************************************************/
/************************************************************************
* Name: pthread_kill
*
* Description:
* The pthread_kill() system call can be used to send any signal to a
* thread. See kill() for further information as this is just a simple
* wrapper around the kill() function.
*
* Parameters:
* thread - The id of the thread to receive the signal. Only positive,
* non-zero values of 'thread' are supported.
* signo - The signal number to send. If 'signo' is zero, no signal is
* sent, but all error checking is performed.
*
* Return Value:
* On success the signal was send and zero is returned. On error one
* of the following error numbers is returned.
*
* EINVAL An invalid signal was specified.
* EPERM The thread does not have permission to send the
* signal to the target thread.
* ESRCH No thread could be found corresponding to that
* specified by the given thread ID
* ENOSYS Do not support sending signals to process groups.
*
* Assumptions:
*
************************************************************************/
int pthread_kill(pthread_t thread, int signo)
{
int ret;
set_errno(EINVAL);
ret = kill((pid_t)thread, signo);
if (ret != OK)
{
ret = get_errno();
}
return ret;
}
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