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Diffstat (limited to 'src/components/utils/src/lock_posix.cc')
-rw-r--r-- | src/components/utils/src/lock_posix.cc | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/src/components/utils/src/lock_posix.cc b/src/components/utils/src/lock_posix.cc deleted file mode 100644 index 9b90ad20b9..0000000000 --- a/src/components/utils/src/lock_posix.cc +++ /dev/null @@ -1,146 +0,0 @@ -/* - * Copyright (c) 2013, Ford Motor Company - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following - * disclaimer in the documentation and/or other materials provided with the - * distribution. - * - * Neither the name of the Ford Motor Company nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "utils/lock.h" -#include <errno.h> -#include <stdint.h> -#include <stdio.h> -#include <string.h> -#include <cstring> -#include "utils/logger.h" - -namespace sync_primitives { - -CREATE_LOGGERPTR_GLOBAL(logger_, "Utils") - -Lock::Lock() -#ifndef NDEBUG - : lock_taken_(0) - , is_mutex_recursive_(false) -#endif // NDEBUG -{ - Init(false); -} - -Lock::Lock(bool is_recursive) -#ifndef NDEBUG - : lock_taken_(0) - , is_mutex_recursive_(is_recursive) -#endif // NDEBUG -{ - Init(is_recursive); -} - -Lock::~Lock() { -#ifndef NDEBUG - if (lock_taken_ > 0) { - LOG4CXX_ERROR(logger_, "Destroying non-released mutex " << &mutex_); - } -#endif - int32_t status = pthread_mutex_destroy(&mutex_); - if (status != 0) { - LOG4CXX_ERROR(logger_, - "Failed to destroy mutex " << &mutex_ << ": " - << strerror(status)); - } -} - -void Lock::Acquire() { - const int32_t status = pthread_mutex_lock(&mutex_); - if (status != 0) { - LOG4CXX_FATAL(logger_, - "Failed to acquire mutex " << &mutex_ << ": " - << strerror(status)); - NOTREACHED(); - } else { - AssertFreeAndMarkTaken(); - } -} - -void Lock::Release() { - AssertTakenAndMarkFree(); - const int32_t status = pthread_mutex_unlock(&mutex_); - if (status != 0) { - LOG4CXX_ERROR(logger_, - "Failed to unlock mutex" << &mutex_ << ": " - << strerror(status)); - } -} - -bool Lock::Try() { - const int32_t status = pthread_mutex_trylock(&mutex_); - if (status == 0) { -#ifndef NDEBUG - lock_taken_++; -#endif - return true; - } - return false; -} - -#ifndef NDEBUG -void Lock::AssertFreeAndMarkTaken() { - if ((lock_taken_ > 0) && !is_mutex_recursive_) { - LOG4CXX_ERROR(logger_, "Locking already taken not recursive mutex"); - NOTREACHED(); - } - lock_taken_++; -} -void Lock::AssertTakenAndMarkFree() { - if (lock_taken_ == 0) { - LOG4CXX_ERROR(logger_, "Unlocking a mutex that is not taken"); - NOTREACHED(); - } - lock_taken_--; -} -#endif - -void Lock::Init(bool is_recursive) { - pthread_mutexattr_t attr; - pthread_mutexattr_init(&attr); - - const int32_t mutex_type = - is_recursive ? PTHREAD_MUTEX_RECURSIVE : PTHREAD_MUTEX_ERRORCHECK; - - pthread_mutexattr_settype(&attr, mutex_type); - const int32_t status = pthread_mutex_init(&mutex_, &attr); - - pthread_mutexattr_destroy(&attr); - - if (status != 0) { - LOG4CXX_FATAL(logger_, - "Failed to initialize mutex. " << std::strerror(status)); - DCHECK(status != 0); - } -} - -} // namespace sync_primitives |