1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "rs_sync_transaction_controller.h"
17
18 #include "platform/common/rs_log.h"
19 #include "rs_process_transaction_controller.h"
20 #include "rs_transaction.h"
21
22 namespace OHOS {
23 namespace Rosen {
24 namespace {
25 const std::string CLOSE_SYNC_TRANSACTION_TIMEOUT_TASK = "RSCloseSyncTransactionTimeoutTask";
26 constexpr int64_t CLOSE_SYNC_TRANSACTION_TIMEOUT_MILLISECONDS = 100;
27 }
28
29 std::once_flag RSSyncTransactionController::flag_;
30 RSSyncTransactionController* RSSyncTransactionController::instance_ = nullptr;
31
GetInstance()32 RSSyncTransactionController* RSSyncTransactionController::GetInstance()
33 {
34 std::call_once(flag_, &RSSyncTransactionController::Init);
35 return instance_;
36 }
37
~RSSyncTransactionController()38 RSSyncTransactionController::~RSSyncTransactionController()
39 {}
40
Init()41 void RSSyncTransactionController::Init()
42 {
43 instance_ = new RSSyncTransactionController();
44 ::atexit(&RSSyncTransactionController::Destroy);
45 }
46
Destroy()47 void RSSyncTransactionController::Destroy()
48 {
49 instance_ = nullptr;
50 }
51
RSSyncTransactionController()52 RSSyncTransactionController::RSSyncTransactionController()
53 {
54 runner_ = AppExecFwk::EventRunner::Create("RSSyncTransactionController");
55 handler_ = std::make_shared<AppExecFwk::EventHandler>(runner_);
56 rsTransaction_ = std::make_shared<RSTransaction>();
57 auto startCallback = [this]() {
58 StartCreateTransaction();
59 };
60 rsTransaction_->SetCreateStartCallback(startCallback);
61 auto finishCallback = [this]() {
62 CreateTransactionFinished();
63 };
64 rsTransaction_->SetCreateFinishCallback(finishCallback);
65 }
66
CreateTransactionFinished()67 void RSSyncTransactionController::CreateTransactionFinished()
68 {
69 {
70 std::unique_lock<std::mutex> lock(mutex_);
71 if (processCount_ == 0) {
72 return;
73 }
74 processCount_--;
75 transactionCount_++;
76 }
77 if (processCount_ == 0) {
78 ROSEN_LOGD("RS sync transaction controller CreateTransactionFinished, processCount: %d", processCount_);
79 CloseSyncTransaction();
80 }
81 }
82
StartCreateTransaction()83 void RSSyncTransactionController::StartCreateTransaction()
84 {
85 std::unique_lock<std::mutex> lock(mutex_);
86 if (processCount_ < 0) {
87 processCount_ = 0;
88 }
89 processCount_++;
90 ROSEN_LOGD("RS sync transaction controller StartCreateTransaction, processCount: %d", processCount_);
91 }
92
OpenSyncTransaction()93 void RSSyncTransactionController::OpenSyncTransaction()
94 {
95 {
96 std::unique_lock<std::mutex> lock(mutex_);
97 if (needCloseSync_) {
98 return;
99 }
100 needCloseSync_ = true;
101 }
102 ROSEN_LOGD("RS sync transaction controller OpenSyncTransaction");
103 if (rsTransaction_) {
104 rsTransaction_->OpenSyncTransaction();
105 }
106 if (handler_) {
107 auto task = [this]() {
108 ROSEN_LOGD("RS sync transaction controller close timeout task run");
109 CloseSyncTransaction();
110 };
111 handler_->PostTask(task, CLOSE_SYNC_TRANSACTION_TIMEOUT_TASK, CLOSE_SYNC_TRANSACTION_TIMEOUT_MILLISECONDS);
112 }
113 }
114
CloseSyncTransaction()115 void RSSyncTransactionController::CloseSyncTransaction()
116 {
117 if (!needCloseSync_) {
118 return;
119 }
120
121 ROSEN_LOGD("RS sync transaction controller CloseSyncTransaction");
122 if (rsTransaction_) {
123 rsTransaction_->CloseSyncTransaction(transactionCount_);
124 }
125 {
126 std::unique_lock<std::mutex> lock(mutex_);
127 processCount_ = 0;
128 transactionCount_ = 0;
129 needCloseSync_ = false;
130 }
131 }
132 } // namespace Rosen
133 } // namespace OHOS
134