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 "audio_capturer_callback_napi.h"
17
18 #include <uv.h>
19
20 #include "audio_errors.h"
21 #include "audio_log.h"
22
23 namespace OHOS {
24 namespace AudioStandard {
AudioCapturerCallbackNapi(napi_env env)25 AudioCapturerCallbackNapi::AudioCapturerCallbackNapi(napi_env env)
26 : env_(env)
27 {
28 AUDIO_DEBUG_LOG("AudioCapturerCallbackNapi: instance create");
29 }
30
~AudioCapturerCallbackNapi()31 AudioCapturerCallbackNapi::~AudioCapturerCallbackNapi()
32 {
33 AUDIO_DEBUG_LOG("AudioCapturerCallbackNapi: instance destroy");
34 }
35
SaveCallbackReference(const std::string & callbackName,napi_value args)36 void AudioCapturerCallbackNapi::SaveCallbackReference(const std::string &callbackName, napi_value args)
37 {
38 std::lock_guard<std::mutex> lock(mutex_);
39 napi_ref callback = nullptr;
40 const int32_t refCount = 1;
41 napi_status status = napi_create_reference(env_, args, refCount, &callback);
42 CHECK_AND_RETURN_LOG(status == napi_ok && callback != nullptr,
43 "AudioCapturerCallbackNapi: creating reference for callback fail");
44
45 std::shared_ptr<AutoRef> cb = std::make_shared<AutoRef>(env_, callback);
46 if (callbackName == STATE_CHANGE_CALLBACK_NAME) {
47 stateChangeCallback_ = cb;
48 } else {
49 AUDIO_ERR_LOG("AudioCapturerCallbackNapi: Unknown callback type: %{public}s", callbackName.c_str());
50 }
51 }
52
OnStateChange(const CapturerState state)53 void AudioCapturerCallbackNapi::OnStateChange(const CapturerState state)
54 {
55 std::lock_guard<std::mutex> lock(mutex_);
56 AUDIO_DEBUG_LOG("AudioCapturerCallbackNapi: OnStateChange is called");
57 AUDIO_DEBUG_LOG("AudioCapturerCallbackNapi: state: %{public}d", state);
58 CHECK_AND_RETURN_LOG(stateChangeCallback_ != nullptr, "Cannot find the reference of stateChange callback");
59
60 std::unique_ptr<AudioCapturerJsCallback> cb = std::make_unique<AudioCapturerJsCallback>();
61 CHECK_AND_RETURN_LOG(cb != nullptr, "No memory");
62 cb->callback = stateChangeCallback_;
63 cb->callbackName = STATE_CHANGE_CALLBACK_NAME;
64 cb->state = state;
65 return OnJsCallbackStateChange(cb);
66 }
67
OnJsCallbackStateChange(std::unique_ptr<AudioCapturerJsCallback> & jsCb)68 void AudioCapturerCallbackNapi::OnJsCallbackStateChange(std::unique_ptr<AudioCapturerJsCallback> &jsCb)
69 {
70 uv_loop_s *loop = nullptr;
71 napi_get_uv_event_loop(env_, &loop);
72 if (loop == nullptr) {
73 return;
74 }
75
76 uv_work_t *work = new(std::nothrow) uv_work_t;
77 if (work == nullptr) {
78 AUDIO_ERR_LOG("AudioCapturerCallbackNapi: OnJsCallbackStateChange: No memory");
79 return;
80 }
81
82 if (jsCb.get() == nullptr) {
83 AUDIO_ERR_LOG("AudioCapturerCallbackNapi: OnJsCallbackStateChange: jsCb.get() is null");
84 delete work;
85 return;
86 }
87
88 work->data = reinterpret_cast<void *>(jsCb.get());
89
90 int ret = uv_queue_work(loop, work, [] (uv_work_t *work) {}, [] (uv_work_t *work, int status) {
91 // Js Thread
92 AudioCapturerJsCallback *event = reinterpret_cast<AudioCapturerJsCallback *>(work->data);
93 std::string request = event->callbackName;
94 napi_env env = event->callback->env_;
95 napi_ref callback = event->callback->cb_;
96 AUDIO_DEBUG_LOG("AudioCapturerCallbackNapi: JsCallBack %{public}s, uv_queue_work start", request.c_str());
97 do {
98 CHECK_AND_BREAK_LOG(status != UV_ECANCELED, "%{public}s cancelled", request.c_str());
99
100 napi_value jsCallback = nullptr;
101 napi_status nstatus = napi_get_reference_value(env, callback, &jsCallback);
102 CHECK_AND_BREAK_LOG(nstatus == napi_ok && jsCallback != nullptr, "%{public}s get reference value fail",
103 request.c_str());
104
105 // Call back function
106 napi_value args[1] = { nullptr };
107 nstatus = napi_create_int32(env, event->state, &args[0]);
108 CHECK_AND_BREAK_LOG(nstatus == napi_ok && args[0] != nullptr,
109 "%{public}s fail to create Interrupt callback", request.c_str());
110
111 const size_t argCount = 1;
112 napi_value result = nullptr;
113 nstatus = napi_call_function(env, nullptr, jsCallback, argCount, args, &result);
114 CHECK_AND_BREAK_LOG(nstatus == napi_ok, "%{public}s fail to call Interrupt callback", request.c_str());
115 } while (0);
116 delete event;
117 delete work;
118 });
119 if (ret != 0) {
120 AUDIO_ERR_LOG("Failed to execute libuv work queue");
121 delete work;
122 } else {
123 jsCb.release();
124 }
125 }
126 } // namespace AudioStandard
127 } // namespace OHOS
128