55a727b1ce
1. change signal/sig_procmask.c and pthread/pthread_sigmask.c together 2. clear signals unconditionally Signed-off-by: guanyi <guanyi@xiaomi.com>
83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
/****************************************************************************
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* sched/pthread/pthread_sigmask.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 <nuttx/config.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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#include <nuttx/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: pthread_sigmask
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*
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* Description:
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* This function is a simple wrapper around nxsig_procmask().
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* See the nxsig_procmask() function description for further
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* information.
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*
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* Input Parameters:
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* how - How the signal mask will be changed:
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* SIG_BLOCK - The resulting set is the union of
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* the current set and the signal set
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* pointed to by 'set'.
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* SIG_UNBLOCK - The resulting set is the intersection
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* of the current set and the complement
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* of the signal set pointed to by 'set'.
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* SIG_SETMASK - The resulting set is the signal set
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* pointed to by 'set'.
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* set - Location of the new signal mask
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* oset - Location to store the old signal mask
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*
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* Returned Value:
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* On success, this function will return 0 (OK). It will return EINVAL if
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* how is invalid.
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*
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****************************************************************************/
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int pthread_sigmask(int how, FAR const sigset_t *set, FAR sigset_t *oset)
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{
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sigset_t nset;
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int ret;
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/* SIGKILL and SIGSTOP should not be added to signal mask */
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if (set != NULL)
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{
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nset = *set;
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nxsig_delset(&nset, SIGKILL);
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nxsig_delset(&nset, SIGSTOP);
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set = &nset;
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}
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ret = nxsig_procmask(how, set, oset);
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return ret < 0 ? -ret : OK;
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}
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