89 lines
3.3 KiB
C
89 lines
3.3 KiB
C
/****************************************************************************
|
|
* libs/libc/signal/sig_raise.c
|
|
*
|
|
* Copyright (C) 2016 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 <signal.h>
|
|
#include <pthread.h>
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: sig_raise
|
|
*
|
|
* Description:
|
|
* The raise() function sends the signal signo to the executing thread or
|
|
* process. If a signal handler is called, the raise() function does not
|
|
* return until after the signal handler does.
|
|
*
|
|
* If the implementation supports the Threads option, the effect of the
|
|
* raise() function is equivalent to calling:
|
|
*
|
|
* pthread_kill(pthread_self(), signo);
|
|
*
|
|
* except that on failures, -1 (ERROR) is returned and the errno() variable
|
|
* is set accordingly. Otherwise, the effect of the raise() function is
|
|
* equivalent to calling:
|
|
*
|
|
* kill(getpid(), signo)
|
|
*
|
|
****************************************************************************/
|
|
|
|
int raise(int signo)
|
|
{
|
|
#ifndef CONFIG_DISABLE_PTHREAD
|
|
int errcode = pthread_kill(pthread_self(), signo);
|
|
if (errcode != OK)
|
|
{
|
|
DEBUGASSERT(errcode > 0);
|
|
set_errno(errcode);
|
|
return ERROR;
|
|
}
|
|
|
|
return OK;
|
|
|
|
#else
|
|
return kill(getpid(), signo);
|
|
#endif
|
|
}
|