1 /*
2 * Copyright (C) 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
16 #include "screen_sensor_plugin.h"
17
18 #include "telephony_log_wrapper.h"
19
20 using namespace OHOS::Telephony;
21
22 namespace OHOS {
23 namespace Rosen {
24 namespace {
25 constexpr uint32_t SLEEP_TIME_US = 10000;
26 }
27
28 static void *g_handle = nullptr;
29
LoadMotionSensor(void)30 bool LoadMotionSensor(void)
31 {
32 TELEPHONY_LOGI("LoadMotionSensor enter.");
33 if (g_handle != nullptr) {
34 TELEPHONY_LOGE("motion plugin has already exist.");
35 return true;
36 }
37 int32_t cnt = 0;
38 int32_t retryTimes = 3;
39 do {
40 cnt++;
41 g_handle = dlopen(PLUGIN_SO_PATH.c_str(), RTLD_LAZY);
42 TELEPHONY_LOGI("dlopen %{public}s, retry cnt: %{public}d", PLUGIN_SO_PATH.c_str(), cnt);
43 usleep(SLEEP_TIME_US);
44 } while (!g_handle && cnt < retryTimes);
45 return g_handle != nullptr;
46 }
47
UnloadMotionSensor(void)48 void UnloadMotionSensor(void)
49 {
50 TELEPHONY_LOGI("unload motion plugin.");
51 if (g_handle != nullptr) {
52 dlclose(g_handle);
53 g_handle = nullptr;
54 }
55 }
56
SubscribeCallback(int32_t motionType,OnMotionChangedPtr callback)57 __attribute__((no_sanitize("cfi"))) bool SubscribeCallback(int32_t motionType, OnMotionChangedPtr callback)
58 {
59 TELEPHONY_LOGI("RegisterCallback enter. motionType = %{public}d", motionType);
60 if (callback == nullptr) {
61 TELEPHONY_LOGE("callback is nullptr");
62 return false;
63 }
64 if (g_handle == nullptr) {
65 TELEPHONY_LOGE("g_handle is nullptr");
66 return false;
67 }
68 MotionSubscribeCallbackPtr func = (MotionSubscribeCallbackPtr)(dlsym(g_handle, "MotionSubscribeCallback"));
69 if (func == nullptr) {
70 TELEPHONY_LOGE("func is nullptr, dlsym error: %{public}s", dlerror());
71 return false;
72 }
73 return func(motionType, callback);
74 }
75
UnsubscribeCallback(int32_t motionType,OnMotionChangedPtr callback)76 __attribute__((no_sanitize("cfi"))) bool UnsubscribeCallback(int32_t motionType, OnMotionChangedPtr callback)
77 {
78 TELEPHONY_LOGI("RegisterCallback enter.");
79 if (callback == nullptr) {
80 TELEPHONY_LOGE("callback is nullptr");
81 return false;
82 }
83 if (g_handle == nullptr) {
84 TELEPHONY_LOGE("g_handle is nullptr");
85 return false;
86 }
87 MotionUnsubscribeCallbackPtr func = (MotionUnsubscribeCallbackPtr)(dlsym(g_handle, "MotionUnsubscribeCallback"));
88 const char *dlsymError = dlerror();
89 if (dlsymError) {
90 TELEPHONY_LOGE("dlsym error: %{public}s", dlsymError);
91 return false;
92 }
93 return func(motionType, callback);
94 }
95 } // namespace Rosen
96 } // namespace OHOS