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f39b15d28b
Implements the pthread_sigqueue Linux extension to pthreads. Follows a similar implementation to sigqueue, except targeting a specific thread through nxsig_dispatch. Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/****************************************************************************
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* sched/pthread/pthread_sigqueue.c
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*
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* SPDX-License-Identifer: Apache-2.0
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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 <errno.h>
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#include <nuttx/debug.h>
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#include <pthread.h>
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#include <signal.h>
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#include <nuttx/signal.h>
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#include "sched/sched.h"
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#include "signal/signal.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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int pthread_sigqueue(pthread_t thread, int sig, const union sigval value)
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{
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#ifdef CONFIG_SCHED_HAVE_PARENT
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FAR struct tcb_s *rtcb = this_task();
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#endif
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siginfo_t info;
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int err;
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sinfo("tid=%d sig=%d value=%d\n", thread, sig, value.sival_int);
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/* Check if signal is valid */
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if (!GOOD_SIGNO(sig))
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{
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return EINVAL;
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}
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/* Create the siginfo structure */
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info.si_signo = sig;
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info.si_code = SI_QUEUE;
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info.si_errno = OK;
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info.si_value = value;
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#ifdef CONFIG_SCHED_HAVE_PARENT
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info.si_pid = rtcb->pid;
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info.si_status = OK;
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#endif
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info.si_user = NULL; /* Will be set in sig_dispatch.c */
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/* Send the signal */
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err = nxsig_dispatch((pid_t)thread, &info, true);
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if (err < 0)
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{
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return -err;
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}
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return 0;
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}
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