/* * Copyright (c) 2025 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "motion_plugin.h" #include "sensor_log.h" #undef LOG_TAG #define LOG_TAG "MotionPlugin" namespace OHOS { namespace Sensors { namespace { constexpr uint32_t SLEEP_TIME_US = 10000; } static void *g_handle = nullptr; bool LoadMotionSensor(void) { SEN_HILOGI("Load motion plugin in"); if (g_handle != nullptr) { SEN_HILOGW("Motion plugin has already exits"); return true; } int32_t cnt = 0; int32_t retryTimes = 3; do { cnt++; g_handle = dlopen(PLUGIN_SO_PATH.c_str(), RTLD_LAZY); SEN_HILOGI("dlopen %{public}s, retry cnt: %{public}d", PLUGIN_SO_PATH.c_str(), cnt); usleep(SLEEP_TIME_US); } while (!g_handle && cnt < retryTimes); return (g_handle != nullptr); } void UnloadMotionSensor(void) { SEN_HILOGI("Unload motion plugin in"); if (g_handle != nullptr) { dlclose(g_handle); g_handle = nullptr; } } __attribute__((no_sanitize("cfi"))) void MotionTransformIfRequired(const std::string& pkName, uint32_t state, SensorData* sensorData) { if (g_handle == nullptr) { return; } MotionTransformIfRequiredPtr func = (MotionTransformIfRequiredPtr)(dlsym(g_handle, "TransformIfRequired")); if (func == nullptr) { SEN_HILOGE("func is nullptr"); return; } const char* dlsymError = dlerror(); if (dlsymError) { SEN_HILOGE("dlsym error: %{public}s", dlsymError); return; } return func(pkName, state, sensorData); } } }