78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
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/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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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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#pragma once
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#include <string>
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#include <string_view>
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#include <vector>
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#include <android-base/expected.h>
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#include <error/Result.h>
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#include <media/AudioParameter.h>
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#include <utils/String16.h>
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#include <utils/Vector.h>
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namespace android {
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class Args {
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public:
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explicit Args(const Vector<String16>& args)
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: mValues(args.size()), mPtrs(args.size()) {
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for (size_t i = 0; i < args.size(); ++i) {
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mValues[i] = std::string(String8(args[i]));
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mPtrs[i] = mValues[i].c_str();
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}
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}
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const char** args() { return mPtrs.data(); }
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private:
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std::vector<std::string> mValues;
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std::vector<const char*> mPtrs;
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};
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class ConversionHelperAidl {
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protected:
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ConversionHelperAidl(std::string_view className) : mClassName(className) {}
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const std::string& getClassName() const {
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return mClassName;
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}
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const std::string mClassName;
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};
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// 'action' must accept a value of type 'T' and return 'status_t'.
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// The function returns 'true' if the parameter was found, and the action has succeeded.
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// The function returns 'false' if the parameter was not found.
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// Any errors get propagated, if there are errors it means the parameter was found.
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template<typename T, typename F>
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error::Result<bool> filterOutAndProcessParameter(
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AudioParameter& parameters, const String8& key, const F& action) {
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if (parameters.containsKey(key)) {
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T value;
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status_t status = parameters.get(key, value);
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if (status == OK) {
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parameters.remove(key);
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status = action(value);
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if (status == OK) return true;
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}
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return base::unexpected(status);
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}
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return false;
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}
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} // namespace android
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