mirror of
https://github.com/openharmony/multimedia_av_session.git
synced 2026-08-25 06:18:12 -04:00
张敏敏
85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
/*
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* Copyright (c) 2024 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "plugin_lib.h"
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#include <dlfcn.h>
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#include <filesystem>
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#include <string>
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#include "avsession_log.h"
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namespace OHOS::AVSession {
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PluginLib::PluginLib(const std::string &libName)
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: libName_(GetRealPath(libName)), handle_(nullptr)
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{
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if (!CheckPathExist(libName_)) {
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SLOGE("%{public}s path invalid", libName_.c_str());
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return;
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}
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handle_ = dlopen(libName_.c_str(), RTLD_NOW);
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if (handle_ == nullptr) {
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LogDlfcnErr("open lib failed");
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return;
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}
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SLOGI("%{public}s open succ", libName_.c_str());
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}
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PluginLib::~PluginLib()
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{
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#ifndef TEST_COVERAGE
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if (handle_ == nullptr || dlclose(handle_) != 0) {
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LogDlfcnErr("close lib failed");
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}
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#endif
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SLOGI("%{public}s close succ", libName_.c_str());
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}
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void *PluginLib::LoadSymbol(const std::string &symbolName)
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{
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if (handle_ == nullptr) {
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SLOGE("%{public}s lib is null", libName_.c_str());
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return nullptr;
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}
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void *sym = dlsym(handle_, symbolName.c_str());
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if (sym == nullptr) {
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LogDlfcnErr("load symbol [" + symbolName + "] failed");
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return nullptr;
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}
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SLOGI("%{public}s load symbol succ", symbolName.c_str());
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return sym;
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}
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void PluginLib::LogDlfcnErr(const std::string &desc)
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{
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SLOGE("[%{public}s] %{public}s, reason = %{public}s",
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libName_.c_str(), desc.c_str(), dlerror());
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// reset errors
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dlerror();
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}
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std::string PluginLib::GetRealPath(const std::string &path)
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{
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auto realPath = std::filesystem::weakly_canonical(path);
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return realPath.string();
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}
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bool PluginLib::CheckPathExist(const std::string &path)
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{
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return std::filesystem::exists(path);
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}
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} // namespace OHOS::AVSession
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