1 /*
2 * Copyright (c) 2023-2024 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 #include "hilog_tag_wrapper.h"
16 #include "ohos_loop_handler.h"
17
18 namespace OHOS {
19 namespace AbilityRuntime {
20
OnReadable(int32_t)21 void OHOSLoopHandler::OnReadable(int32_t)
22 {
23 TAG_LOGD(AAFwkTag::JSRUNTIME, "triggered");
24 OnTriggered();
25 }
26
OnWritable(int32_t)27 void OHOSLoopHandler::OnWritable(int32_t)
28 {
29 TAG_LOGD(AAFwkTag::JSRUNTIME, "triggered");
30 OnTriggered();
31 }
32
OnTriggered()33 void OHOSLoopHandler::OnTriggered()
34 {
35 TAG_LOGD(AAFwkTag::JSRUNTIME, "triggered");
36
37 uv_run(uvLoop_, UV_RUN_NOWAIT);
38
39 auto eventHandler = GetOwner();
40 if (!eventHandler) {
41 return;
42 }
43
44 int32_t timeout = uv_backend_timeout(uvLoop_);
45 if (timeout < 0) {
46 if (haveTimerTask_) {
47 eventHandler->RemoveTask(TIMER_TASK);
48 }
49 return;
50 }
51
52 int64_t timeStamp = static_cast<int64_t>(uv_now(uvLoop_)) + timeout;
53 // we don't check timestamp in emulator for computer clock is inaccurate
54 #ifndef RUNTIME_EMULATOR
55 if (timeStamp == lastTimeStamp_) {
56 return;
57 }
58 #endif
59
60 if (haveTimerTask_) {
61 eventHandler->RemoveTask(TIMER_TASK);
62 }
63
64 auto callback = [wp = weak_from_this()] {
65 auto sp = wp.lock();
66 if (sp) {
67 // Timer task is triggered, so there is no timer task now.
68 sp->haveTimerTask_ = false;
69 sp->OnTriggered();
70 }
71 };
72 eventHandler->PostTask(callback, TIMER_TASK, timeout);
73 lastTimeStamp_ = timeStamp;
74 haveTimerTask_ = true;
75 }
76 } // namespace AbilityRuntime
77 } // namespace OHOS
78