1 /*
2 * Copyright (c) 2021-2022 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 "renderer_period_position_callback_napi.h"
17
18 #include <uv.h>
19
20 #include "audio_errors.h"
21 #include "audio_log.h"
22
23 namespace {
24 const std::string RENDERER_PERIOD_POSITION_CALLBACK_NAME = "periodReach";
25 }
26
27 namespace OHOS {
28 namespace AudioStandard {
RendererPeriodPositionCallbackNapi(napi_env env)29 RendererPeriodPositionCallbackNapi::RendererPeriodPositionCallbackNapi(napi_env env)
30 : env_(env)
31 {
32 AUDIO_DEBUG_LOG("instance create");
33 }
34
~RendererPeriodPositionCallbackNapi()35 RendererPeriodPositionCallbackNapi::~RendererPeriodPositionCallbackNapi()
36 {
37 AUDIO_DEBUG_LOG("instance destroy");
38 }
39
SaveCallbackReference(const std::string & callbackName,napi_value args)40 void RendererPeriodPositionCallbackNapi::SaveCallbackReference(const std::string &callbackName, napi_value args)
41 {
42 std::lock_guard<std::mutex> lock(mutex_);
43 napi_ref callback = nullptr;
44 const int32_t refCount = 1;
45 napi_status status = napi_create_reference(env_, args, refCount, &callback);
46 CHECK_AND_RETURN_LOG(status == napi_ok && callback != nullptr,
47 "creating reference for callback fail");
48
49 std::shared_ptr<AutoRef> cb = std::make_shared<AutoRef>(env_, callback);
50 if (callbackName == RENDERER_PERIOD_POSITION_CALLBACK_NAME) {
51 renderPeriodPositionCallback_ = cb;
52 } else {
53 AUDIO_ERR_LOG("Unknown callback type: %{public}s", callbackName.c_str());
54 }
55 }
56
OnPeriodReached(const int64_t & frameNumber)57 void RendererPeriodPositionCallbackNapi::OnPeriodReached(const int64_t &frameNumber)
58 {
59 std::lock_guard<std::mutex> lock(mutex_);
60 AUDIO_DEBUG_LOG("period reached");
61 CHECK_AND_RETURN_LOG(renderPeriodPositionCallback_ != nullptr, "Cannot find the reference of position callback");
62
63 std::unique_ptr<RendererPeriodPositionJsCallback> cb = std::make_unique<RendererPeriodPositionJsCallback>();
64 CHECK_AND_RETURN_LOG(cb != nullptr, "No memory");
65 cb->callback = renderPeriodPositionCallback_;
66 cb->callbackName = RENDERER_PERIOD_POSITION_CALLBACK_NAME;
67 cb->position = frameNumber;
68 return OnJsRendererPeriodPositionCallback(cb);
69 }
70
OnJsRendererPeriodPositionCallback(std::unique_ptr<RendererPeriodPositionJsCallback> & jsCb)71 void RendererPeriodPositionCallbackNapi::OnJsRendererPeriodPositionCallback(
72 std::unique_ptr<RendererPeriodPositionJsCallback> &jsCb)
73 {
74 uv_loop_s *loop = nullptr;
75 CHECK_AND_RETURN_LOG(env_ != nullptr,
76 "OnJsRendererPeriodPositionCallback: env_ is null");
77
78 napi_get_uv_event_loop(env_, &loop);
79 if (loop == nullptr) {
80 return;
81 }
82 uv_work_t *work = new(std::nothrow) uv_work_t;
83 CHECK_AND_RETURN_LOG(work != nullptr,
84 "OnJsRendererPeriodPositionCallback: No memory");
85
86 if (jsCb.get() == nullptr) {
87 AUDIO_ERR_LOG("OnJsRendererPeriodPositionCallback: jsCb.get() is null");
88 delete work;
89 return;
90 }
91 work->data = reinterpret_cast<void *>(jsCb.get());
92
93 int ret = uv_queue_work(loop, work, [] (uv_work_t *work) {}, [] (uv_work_t *work, int status) {
94 // Js Thread
95 RendererPeriodPositionJsCallback *event = reinterpret_cast<RendererPeriodPositionJsCallback *>(work->data);
96 std::string request = event->callbackName;
97 napi_env env = event->callback->env_;
98 napi_ref callback = event->callback->cb_;
99 AUDIO_DEBUG_LOG("JsCallBack %{public}s, uv_queue_work start",
100 request.c_str());
101 do {
102 CHECK_AND_BREAK_LOG(status != UV_ECANCELED, "%{public}s canceled", request.c_str());
103
104 napi_value jsCallback = nullptr;
105 napi_status nstatus = napi_get_reference_value(env, callback, &jsCallback);
106 CHECK_AND_BREAK_LOG(nstatus == napi_ok && jsCallback != nullptr, "%{public}s get reference value fail",
107 request.c_str());
108
109 // Call back function
110 napi_value args[1] = { nullptr };
111 napi_create_int64(env, event->position, &args[0]);
112 CHECK_AND_BREAK_LOG(nstatus == napi_ok && args[0] != nullptr,
113 "%{public}s fail to create position callback", request.c_str());
114
115 const size_t argCount = 1;
116 napi_value result = nullptr;
117 nstatus = napi_call_function(env, nullptr, jsCallback, argCount, args, &result);
118 CHECK_AND_BREAK_LOG(nstatus == napi_ok, "%{public}s fail to call position callback", request.c_str());
119 } while (0);
120 delete event;
121 delete work;
122 });
123 if (ret != 0) {
124 AUDIO_ERR_LOG("Failed to execute libuv work queue");
125 delete work;
126 } else {
127 jsCb.release();
128 }
129 }
130 } // namespace AudioStandard
131 } // namespace OHOS
132