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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_BASE_SESSION_OPTIONS_H_
#define REMOTING_BASE_SESSION_OPTIONS_H_
#include <optional>
#include <string>
#include "base/containers/flat_map.h"
namespace remoting {
// Session based host options sending from client. This class parses and stores
// session configuration from client side to control the behavior of other host
// components.
class SessionOptions final {
public:
SessionOptions();
SessionOptions(const SessionOptions& other);
SessionOptions(SessionOptions&& other);
explicit SessionOptions(const std::string& parameter);
~SessionOptions();
SessionOptions& operator=(const SessionOptions& other);
SessionOptions& operator=(SessionOptions&& other);
// Appends one key-value pair into current instance.
void Append(const std::string& key, const std::string& value);
// Retrieves the value of |key|. Returns a true Optional if |key| has been
// found, value of the Optional will be set to corresponding value.
std::optional<std::string> Get(const std::string& key) const;
// Retrieves the value of |key|. Returns a true Optional if |key| has been
// found and the corresponding value can be converted to a boolean value.
// "true", "1" or empty will be converted to true, "false" or "0" will be
// converted to false.
std::optional<bool> GetBool(const std::string& key) const;
// Equivalent to GetBool(key).value_or(false).
bool GetBoolValue(const std::string& key) const;
// Retrieves the value of |key|. Returns a true Optional if |key| has been
// found and the corresponding value can be converted to an integer.
std::optional<int> GetInt(const std::string& key) const;
// Returns a string to represent current instance. Consumers can rebuild an
// exactly same instance with Import() function.
std::string Export() const;
// Overwrite current instance with |parameter|, which is a string returned by
// Export() function. So a parent process can send SessionOptions to a
// child process.
void Import(const std::string& parameter);
private:
base::flat_map<std::string, std::string> options_;
};
} // namespace remoting
#endif // REMOTING_BASE_SESSION_OPTIONS_H_
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