037a6f5836
1. the killpg function can make all the ltp/open_posix_testsuite/killpg testcaes passed 2. Nuttx do not support process group, so we use kill process instead 3. the implementation are referred to: https://pubs.opengroup.org/onlinepubs/9699919799/functions/killpg.html Signed-off-by: guoshichao <guoshichao@xiaomi.com>
70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
/****************************************************************************
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* libs/libc/signal/sig_killpg.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 <errno.h>
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#include <signal.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: killpg
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*
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* Description:
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* The killpg() system call can be used to send any signal to process
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* group. 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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* Input Parameters:
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* pgrp - The id of the process group to receive the signal.
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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 -1 is
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* returned, and errno is set one of the following error numbers:
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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 killpg(pid_t pgrp, int signo)
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{
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if (pgrp <= CONFIG_SMP_NCPUS)
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{
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set_errno(EINVAL);
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return ERROR;
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}
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/* Nuttx do not support process group, we use kill process instead */
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return kill(pgrp, signo);
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}
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