ladybird/Ladybird/SQLServer/main.cpp
Timothy Flynn 4c1f414713 Ladybird: Migrate SQLServer to be launched as a singleton process
Rather than manually launching the SQLServer process, use SQLClient's
new functionality to launch the server just once for all Ladybird
instances. Quit the SQLServer process when it no longer has any
connected clients.
2022-12-25 07:58:58 -07:00

49 lines
1.4 KiB
C++

/*
* Copyright (c) 2022, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#define AK_DONT_REPLACE_STD
#include <AK/DeprecatedString.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/Directory.h>
#include <LibCore/EventLoop.h>
#include <LibCore/StandardPaths.h>
#include <LibIPC/MultiServer.h>
#include <LibMain/Main.h>
#include <SQLServer/ConnectionFromClient.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
DeprecatedString pid_file;
Core::ArgsParser args_parser;
args_parser.add_option(pid_file, "Path to the PID file for the SQLServer singleton process", "pid-file", 'p', "pid_file");
args_parser.parse(arguments);
VERIFY(!pid_file.is_empty());
auto database_path = DeprecatedString::formatted("{}/Ladybird", Core::StandardPaths::data_directory());
TRY(Core::Directory::create(database_path, Core::Directory::CreateDirectories::Yes));
Core::EventLoop loop;
auto server = TRY(IPC::MultiServer<SQLServer::ConnectionFromClient>::try_create());
u64 connection_count { 0 };
server->on_new_client = [&](auto& client) {
client.set_database_path(database_path);
++connection_count;
client.on_disconnect = [&]() {
if (--connection_count == 0) {
MUST(Core::System::unlink(pid_file));
loop.quit(0);
}
};
};
return loop.exec();
}