51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
// Copyright 2015-2023 The Mumble Developers. All rights reserved.
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file at the root of the
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// Mumble source tree or at <https://www.mumble.info/LICENSE>.
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#ifndef MUMBLE_MUMBLE_LOCKFILE_H_
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#define MUMBLE_MUMBLE_LOCKFILE_H_
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#include <QtCore/QtGlobal>
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#ifdef Q_OS_WIN
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# include "win.h"
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#endif
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#include <QtCore/QString>
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/// UserLockFile implements an atomic lock file
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/// that can be used as a mutex between different
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/// processes run by the same user.
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class UserLockFile {
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#if defined(Q_OS_WIN)
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HANDLE m_handle;
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#endif
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QString m_path;
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public:
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/// Constructs a LockFile at path.
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/// The path should be somewhere
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/// owned by the current user, such
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/// as inside the home directory of
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/// the user. This is to avoid clashing
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/// with other lock files.
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UserLockFile(const QString &path);
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/// Destroys the LockFile, and ensures
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/// that it is released.
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~UserLockFile();
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/// Returns the path that the lock file
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/// exists at.
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QString path() const;
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/// Acquires the lock file.
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bool acquire();
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/// Releases the lock file.
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void release();
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};
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#endif
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