afb81b8278
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59 lines
1.3 KiB
C++
59 lines
1.3 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#pragma once
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#include "base/file_lock.h"
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#include <QtNetwork/QLocalServer>
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#include <QtNetwork/QLocalSocket>
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namespace base {
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class SingleInstance final {
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public:
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struct Message {
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uint32 id = 0;
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QByteArray data;
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};
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SingleInstance();
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~SingleInstance();
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void start(
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const QString &uniqueApplicationName,
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const QString &path,
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Fn<void()> primary,
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Fn<void()> secondary,
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Fn<void()> fail);
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void send(const QByteArray &command, Fn<void()> done);
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[[nodiscard]] rpl::producer<Message> commands() const;
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void reply(uint32 commandId, QWidget *activate = nullptr);
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private:
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void clearSocket();
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void clearLock();
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[[nodiscard]] bool closeExisting();
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void newInstanceConnected();
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void readClient(not_null<QLocalSocket*> client);
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void removeClient(not_null<QLocalSocket*> client);
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QString _name;
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QLocalServer _server;
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QLocalSocket _socket;
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uint32 _lastMessageId = 0;
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base::flat_map<not_null<QLocalSocket*>, Message> _clients;
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rpl::event_stream<Message> _commands;
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QFile _lockFile;
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FileLock _lock;
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};
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} // namespace base
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