a0b8746173
- Add LIB_VERSION ioctl - Add CLOSE_DELIVERED ioctl - Bump code version Upstream version: 3782f2ad42c08f4d32f64138f8be7341afc380f5
73 lines
2.9 KiB
C
73 lines
2.9 KiB
C
/**
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* Copyright (c) 2010-2012 Broadcom. All rights reserved.
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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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* 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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* without modification.
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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 the
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* documentation and/or other materials provided with the distribution.
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* 3. The names of the above-listed copyright holders may not be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2, as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef VCHIQ_KILLABLE_H
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#define VCHIQ_KILLABLE_H
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#ifdef notyet
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#include <linux/mutex.h>
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#include <linux/semaphore.h>
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#define SHUTDOWN_SIGS (sigmask(SIGKILL) | sigmask(SIGINT) | sigmask(SIGQUIT) | sigmask(SIGTRAP) | sigmask(SIGSTOP) | sigmask(SIGCONT))
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static inline int __must_check down_interruptible_killable(struct semaphore *sem)
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{
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/* Allow interception of killable signals only. We don't want to be interrupted by harmless signals like SIGALRM */
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int ret;
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sigset_t blocked, oldset;
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siginitsetinv(&blocked, SHUTDOWN_SIGS);
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sigprocmask(SIG_SETMASK, &blocked, &oldset);
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ret = down_interruptible(sem);
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sigprocmask(SIG_SETMASK, &oldset, NULL);
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return ret;
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}
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#define down_interruptible down_interruptible_killable
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static inline int __must_check mutex_lock_interruptible_killable(struct mutex *lock)
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{
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/* Allow interception of killable signals only. We don't want to be interrupted by harmless signals like SIGALRM */
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int ret;
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sigset_t blocked, oldset;
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siginitsetinv(&blocked, SHUTDOWN_SIGS);
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sigprocmask(SIG_SETMASK, &blocked, &oldset);
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ret = mutex_lock_interruptible(lock);
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sigprocmask(SIG_SETMASK, &oldset, NULL);
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return ret;
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}
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#define mutex_lock_interruptible mutex_lock_interruptible_killable
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#endif
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#endif
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