70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
/****************************************************************************
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* libs/libc/pthread/pthread_kill.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 <signal.h>
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#include <pthread.h>
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#include <errno.h>
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/****************************************************************************
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* Public 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 nxsig_kill() for further information as this is just a
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* simple wrapper around the nxsig_kill() function.
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*
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* Input 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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* Returned 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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****************************************************************************/
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int pthread_kill(pthread_t thread, int signo)
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{
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int ret = tkill((pid_t)thread, signo);
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if (ret < 0)
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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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