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/*
* Copyright (C) 2020 The Android Open Source Project
*
* 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.
*/
#ifndef ANDROID_INSTALLD_EXECV_HELPER_H
#define ANDROID_INSTALLD_EXECV_HELPER_H
#include <string>
#include <vector>
namespace android {
namespace installd {
// ExecVHelper prepares and holds pointers to parsed command line arguments so that no allocations
// need to be performed between the fork and exec.
class ExecVHelper {
public:
ExecVHelper();
virtual ~ExecVHelper();
[[ noreturn ]]
virtual void Exec(int exit_code);
void PrepareArgs(const std::string& bin);
// Add an arg if it's not empty.
void AddArg(const std::string& arg);
// Add a runtime arg if it's not empty.
void AddRuntimeArg(const std::string& arg);
protected:
// Holder arrays for backing arg storage.
std::vector<std::string> args_;
// Argument poiners.
std::vector<const char*> argv_;
};
} // namespace installd
} // namespace android
#endif // ANDROID_INSTALLD_EXECV_HELPER_H
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