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Userland: Introduce ConfigServer and LibConfig

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ConfigServer is an IPC service that provides access to application
configuration and settings. The idea is to replace all uses of
Core::ConfigFile with IPC requests to ConfigServer.

This first cut of the API is pretty similar to Core::ConfigFile.

The old:

    auto config = Core::ConfigFile::open_for_app("App");
    auto value = config->read_entry("Group", "Key");

The new:

    auto value = Config::read_string("App", "Group", "Key");

ConfigServer uses the ~/.config directory as its backing store
and all the files remain human-editable. :^)
This commit is contained in:
Andreas Kling 2021-08-25 19:35:19 +02:00
parent c97f7ea23b
commit bdcd0abf9d
12 changed files with 319 additions and 0 deletions
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34
Userland/Services/ConfigServer/ClientConnection.h Normal file
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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibIPC/ClientConnection.h>
#include <ConfigServer/ConfigClientEndpoint.h>
#include <ConfigServer/ConfigServerEndpoint.h>
namespace ConfigServer {
class ClientConnection final : public IPC::ClientConnection<ConfigClientEndpoint, ConfigServerEndpoint> {
C_OBJECT(ClientConnection)
public:
~ClientConnection() override;
virtual void die() override;
private:
explicit ClientConnection(NonnullRefPtr<Core::LocalSocket>, int client_id);
virtual Messages::ConfigServer::ReadStringValueResponse read_string_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key) override;
virtual Messages::ConfigServer::ReadI32ValueResponse read_i32_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key) override;
virtual Messages::ConfigServer::ReadBoolValueResponse read_bool_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key) override;
virtual void write_string_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key, [[maybe_unused]] String const& value) override;
virtual void write_i32_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key, [[maybe_unused]] i32 value) override;
virtual void write_bool_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key, [[maybe_unused]] bool value) override;
};
}