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118 lines
3.8 KiB
118 lines
3.8 KiB
/******************************************************************************
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*
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* Copyright 2021 Google, Inc.
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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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******************************************************************************/
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#define LOG_TAG "BtGdWakelockNative"
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#include "os/internal/wakelock_native.h"
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#include <android/system/suspend/1.0/ISystemSuspend.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <cerrno>
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#include <string>
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#include "os/log.h"
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namespace bluetooth {
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namespace os {
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namespace internal {
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using android::sp;
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using android::system::suspend::V1_0::ISystemSuspend;
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using android::system::suspend::V1_0::IWakeLock;
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using android::system::suspend::V1_0::WakeLockType;
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struct WakelockNative::Impl {
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sp<ISystemSuspend> suspend_service = nullptr;
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sp<IWakeLock> current_wakelock = nullptr;
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class SystemSuspendDeathRecipient : public ::android::hardware::hidl_death_recipient {
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public:
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explicit SystemSuspendDeathRecipient(WakelockNative::Impl* impl) : impl_(impl) {}
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void serviceDied(uint64_t /*cookie*/, const android::wp<::android::hidl::base::V1_0::IBase>& /*who*/) override {
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LOG_ERROR("ISystemSuspend HAL service died!");
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impl_->suspend_service = nullptr;
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}
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private:
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WakelockNative::Impl* impl_ = nullptr;
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};
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sp<SystemSuspendDeathRecipient> suspend_death_recipient;
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};
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void WakelockNative::Initialize() {
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LOG_INFO("Initializing native wake locks");
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pimpl_->suspend_service = ISystemSuspend::getService();
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ASSERT_LOG(pimpl_->suspend_service, "Cannot get ISystemSuspend service");
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pimpl_->suspend_death_recipient = new Impl::SystemSuspendDeathRecipient(pimpl_.get());
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pimpl_->suspend_service->linkToDeath(pimpl_->suspend_death_recipient, 0 /* cookie */);
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}
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WakelockNative::StatusCode WakelockNative::Acquire(const std::string& lock_name) {
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if (!pimpl_->suspend_service) {
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LOG_ERROR("lock not acquired, ISystemService is not available");
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return StatusCode::NATIVE_SERVICE_NOT_AVAILABLE;
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}
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if (pimpl_->current_wakelock) {
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LOG_INFO("wakelock is already acquired");
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return StatusCode::SUCCESS;
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}
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pimpl_->current_wakelock = pimpl_->suspend_service->acquireWakeLock(WakeLockType::PARTIAL, lock_name);
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if (!pimpl_->current_wakelock) {
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LOG_ERROR("wake lock not acquired: %s", strerror(errno));
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return StatusCode::NATIVE_API_ERROR;
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}
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return StatusCode::SUCCESS;
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}
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WakelockNative::StatusCode WakelockNative::Release(const std::string& lock_name) {
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if (!pimpl_->current_wakelock) {
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LOG_WARN("no lock is currently acquired");
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return StatusCode::SUCCESS;
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}
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pimpl_->current_wakelock->release();
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pimpl_->current_wakelock.clear();
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return StatusCode::SUCCESS;
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}
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void WakelockNative::CleanUp() {
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LOG_INFO("Cleaning up native wake locks");
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if (pimpl_->current_wakelock) {
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LOG_INFO("releasing current wakelock during clean up");
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pimpl_->current_wakelock->release();
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pimpl_->current_wakelock.clear();
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}
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if (pimpl_->suspend_service) {
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LOG_INFO("Unlink death recipient");
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pimpl_->suspend_service->unlinkToDeath(pimpl_->suspend_death_recipient);
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pimpl_->suspend_death_recipient.clear();
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pimpl_->suspend_service.clear();
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}
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}
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WakelockNative::WakelockNative() : pimpl_(std::make_unique<Impl>()) {}
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WakelockNative::~WakelockNative() = default;
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} // namespace internal
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} // namespace os
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} // namespace bluetooth
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