137 lines
4.1 KiB
C++
137 lines
4.1 KiB
C++
/*
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* Copyright (C) 2017 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 "chre/platform/slpi/see/island_vote_client.h"
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#include <cinttypes>
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#include "chre/platform/assert.h"
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#include "chre/platform/fatal_error.h"
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#include "chre/platform/log.h"
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#include "chre/platform/system_time.h"
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#include "chre/util/lock_guard.h"
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namespace chre {
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#ifdef CHRE_SLPI_UIMG_ENABLED
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constexpr Seconds IslandVoteClient::kSeeMaxBigImageDuration;
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#endif // CHRE_SLPI_UIMG_ENABLED
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IslandVoteClient::IslandVoteClient(const char *clientName) {
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#ifdef CHRE_SLPI_UIMG_ENABLED
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mClientHandle = sns_island_aggregator_register_client(clientName);
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if (mClientHandle == nullptr) {
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FATAL_ERROR("Island aggregator client register failed");
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}
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#endif // CHRE_SLPI_UIMG_ENABLED
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}
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IslandVoteClient::~IslandVoteClient() {
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#ifdef CHRE_SLPI_UIMG_ENABLED
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sns_island_aggregator_deregister_client(mClientHandle);
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#endif // CHRE_SLPI_UIMG_ENABLED
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}
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bool IslandVoteClient::voteBigImage(bool bigImage) {
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#ifdef CHRE_SLPI_UIMG_ENABLED
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bool success = true;
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{
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LockGuard<Mutex> lock(mMutex);
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mLastBigImageRequest = bigImage;
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bool needBigImage = (bigImage || mBigImageRefCount > 0);
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if (needBigImage != mLastBigImageVote) {
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success = voteSnsPowerMode(needBigImage);
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mLastBigImageVote = needBigImage;
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}
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}
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return success;
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#else
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return true;
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#endif // CHRE_SLPI_UIMG_ENABLED
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}
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#ifdef CHRE_SLPI_UIMG_ENABLED
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void IslandVoteClient::incrementBigImageRefCount() {
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LockGuard<Mutex> lock(mMutex);
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if (mBigImageRefCount++ == 0) {
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mRefCountStart = Milliseconds(SystemTime::getMonotonicTime());
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LOGW("Big image ref count begins");
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if (!mLastBigImageVote) {
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// Do not call voteBigImage() directly as it will override
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// mLastBigImageRequest.
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voteSnsPowerMode(true /* bigImage */);
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mLastBigImageVote = true;
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}
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} else {
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checkBigImageDuration();
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}
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}
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void IslandVoteClient::decrementBigImageRefCount() {
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LockGuard<Mutex> lock(mMutex);
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CHRE_ASSERT_LOG(mBigImageRefCount > 0,
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"Tried to decrement big image ref count when it's 0");
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uint64_t duration = checkBigImageDuration();
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if (--mBigImageRefCount == 0) {
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LOGW("Big image ref count ends: %" PRIu64 " ms", duration);
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// There's no big image activity now, restore the intended uimg power state.
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if (!mLastBigImageRequest) {
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voteSnsPowerMode(false /* bigImage */);
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mLastBigImageVote = false;
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}
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}
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}
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bool IslandVoteClient::voteSnsPowerMode(bool bigImage) {
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sns_rc rc = bigImage ? sns_island_block(mClientHandle)
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: sns_island_unblock(mClientHandle);
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// TODO: (b/74524281) define success = (rc == SNS_RC_SUCCESS).
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bool success = (rc != SNS_RC_FAILED);
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if (!success) {
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LOGE("Failed to vote for bigImage %d with result %d", bigImage, rc);
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}
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return success;
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}
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uint64_t IslandVoteClient::checkBigImageDuration() const {
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uint64_t duration = 0;
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if (mBigImageRefCount > 0) {
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duration = Milliseconds(SystemTime::getMonotonicTime()).getMilliseconds() -
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mRefCountStart.getMilliseconds();
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}
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// Bimg memory fallback only intends to handle a surge of uimg memory
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// requests. If there's a prolonged period of memory fallback, this might
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// indicate a memory leak or inadequate uimg heap size.
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if (duration > kSeeMaxBigImageDuration.getMilliseconds()) {
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FATAL_ERROR("Forced into big image for %" PRIu64 " msec", duration);
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}
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return duration;
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}
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#endif // CHRE_SLPI_UIMG_ENABLED
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//! Explicitly instantiate the IslandVoteClient singleton to reduce code size.
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template class Singleton<IslandVoteClient>;
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} // namespace chre
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