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// Copyright 2005-2019 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.
#include "UserLockFile.h"
UserLockFile::UserLockFile(const QString &lockFilePath)
: m_handle(0)
, m_path(lockFilePath) {
}
UserLockFile::~UserLockFile() {
release();
}
QString UserLockFile::path() const {
return m_path;
}
bool UserLockFile::acquire() {
if (m_handle != 0) {
return false;
}
m_handle = CreateFile(
reinterpret_cast<const wchar_t *>(m_path.utf16()),
GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_HIDDEN,
NULL
);
if (m_handle == INVALID_HANDLE_VALUE && GetLastError() == ERROR_SHARING_VIOLATION) {
return false;
}
return true;
}
void UserLockFile::release() {
if (m_handle != 0) {
CloseHandle(m_handle);
m_handle = 0;
}
}
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