98 lines
3.4 KiB
C++
98 lines
3.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qsystemsemaphore.h"
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#include "qsystemsemaphore_p.h"
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#include <qdebug.h>
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#include <qcoreapplication.h>
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#ifndef QT_NO_SYSTEMSEMAPHORE
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#include <sys/types.h>
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#ifndef QT_POSIX_IPC
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#include <sys/ipc.h>
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#include <sys/sem.h>
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#endif
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#include <fcntl.h>
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#include <errno.h>
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#include "private/qcore_unix_p.h"
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QT_BEGIN_NAMESPACE
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QSystemSemaphorePrivate::QSystemSemaphorePrivate() :
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#ifndef QT_POSIX_IPC
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unix_key(-1), semaphore(-1), createdFile(false),
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#else
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semaphore(SEM_FAILED),
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#endif // QT_POSIX_IPC
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createdSemaphore(false), error(QSystemSemaphore::NoError)
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{
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}
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void QSystemSemaphorePrivate::setErrorString(const QString &function)
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{
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// EINVAL is handled in functions so they can give better error strings
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switch (errno) {
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case EPERM:
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case EACCES:
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errorString = QCoreApplication::translate("QSystemSemaphore", "%1: permission denied").arg(function);
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error = QSystemSemaphore::PermissionDenied;
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break;
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case EEXIST:
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errorString = QCoreApplication::translate("QSystemSemaphore", "%1: already exists").arg(function);
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error = QSystemSemaphore::AlreadyExists;
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break;
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case ENOENT:
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errorString = QCoreApplication::translate("QSystemSemaphore", "%1: does not exist").arg(function);
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error = QSystemSemaphore::NotFound;
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break;
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case ERANGE:
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case ENOSPC:
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errorString = QCoreApplication::translate("QSystemSemaphore", "%1: out of resources").arg(function);
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error = QSystemSemaphore::OutOfResources;
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break;
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default:
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errorString = QCoreApplication::translate("QSystemSemaphore", "%1: unknown error %2").arg(function).arg(errno);
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error = QSystemSemaphore::UnknownError;
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#if defined QSYSTEMSEMAPHORE_DEBUG
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qDebug() << errorString << "key" << key << "errno" << errno << EINVAL;
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#endif
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}
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}
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QT_END_NAMESPACE
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#endif // QT_NO_SYSTEMSEMAPHORE
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