mirror of
https://github.com/Evolution-X/hardware_interfaces
synced 2026-02-01 16:50:18 +00:00
e1857f8dbd
Android T migrated the HAL interface to AIDL, but the reference HAL was never updated to use AIDL. This CL migrates the reference HAL implementation for external cameras to use AIDL as well. The external HAL uses V4L2 standard to expose USB cameras to the cameraserver. The reference HAL implementation for internal camera was dropped because it is not possible to write a generic HAL that works with some large percentage of internal cameras. Bug: 219974678 Test: Existing CTS tests pass with external camera connected. Change-Id: I35f3dc32c16670eca7735a4ac00fed3daf36aa65
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/*
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* Copyright (C) 2022 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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#include "SimpleThread.h"
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namespace android {
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namespace hardware {
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namespace camera {
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namespace common {
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namespace helper {
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SimpleThread::SimpleThread() : mDone(true), mThread() {}
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SimpleThread::~SimpleThread() {
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// Safe to call requestExitAndWait() from the destructor because requestExitAndWait() ensures
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// that the thread is joinable before joining on it. This is different from how
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// android::Thread worked.
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requestExitAndWait();
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}
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void SimpleThread::run() {
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requestExitAndWait(); // Exit current execution, if any.
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// start thread
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mDone.store(false, std::memory_order_release);
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mThread = std::thread(&SimpleThread::runLoop, this);
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}
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void SimpleThread::requestExitAndWait() {
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// Signal thread to stop
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mDone.store(true, std::memory_order_release);
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// Wait for thread to exit if needed. This should happen in no more than one iteration of
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// threadLoop
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if (mThread.joinable()) {
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mThread.join();
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}
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mThread = std::thread();
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}
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void SimpleThread::runLoop() {
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while (!exitPending()) {
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if (!threadLoop()) {
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break;
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}
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}
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}
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} // namespace helper
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} // namespace common
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} // namespace camera
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} // namespace hardware
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} // namespace android
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