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57 lines
1.4 KiB
57 lines
1.4 KiB
4 months ago
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/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS
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#define LOG_TAG "hwc-drm-auto-lock"
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#include "autolock.h"
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#include <errno.h>
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#include <pthread.h>
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#include <log/log.h>
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namespace android {
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int AutoLock::Lock() {
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if (locked_) {
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ALOGE("Invalid attempt to double lock AutoLock %s", name_);
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return -EINVAL;
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}
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int ret = pthread_mutex_lock(mutex_);
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if (ret) {
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ALOGE("Failed to acquire %s lock %d", name_, ret);
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return ret;
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}
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locked_ = true;
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return 0;
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}
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int AutoLock::Unlock() {
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if (!locked_) {
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ALOGE("Invalid attempt to unlock unlocked AutoLock %s", name_);
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return -EINVAL;
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}
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int ret = pthread_mutex_unlock(mutex_);
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if (ret) {
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ALOGE("Failed to release %s lock %d", name_, ret);
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return ret;
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}
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locked_ = false;
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return 0;
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}
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} // namespace android
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