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