38 lines
933 B
C++
38 lines
933 B
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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#include "UserLockFile.h"
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UserLockFile::UserLockFile(const QString &lockFilePath) : m_handle(0), m_path(lockFilePath) {
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}
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UserLockFile::~UserLockFile() {
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release();
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}
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QString UserLockFile::path() const {
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return m_path;
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}
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bool UserLockFile::acquire() {
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if (m_handle != 0) {
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return false;
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}
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m_handle = CreateFile(reinterpret_cast< const wchar_t * >(m_path.utf16()), GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS,
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FILE_ATTRIBUTE_HIDDEN, nullptr);
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if (m_handle == INVALID_HANDLE_VALUE && GetLastError() == ERROR_SHARING_VIOLATION) {
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return false;
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}
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return true;
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}
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void UserLockFile::release() {
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if (m_handle != 0) {
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CloseHandle(m_handle);
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m_handle = 0;
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}
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}
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