qdbuserror.cpp

Go to the documentation of this file.

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qdbuserror.h"
 
#include <qdebug.h>
#include <qvarlengtharray.h>
#include <private/qoffsetstringarray_p.h>
 
#ifndef QT_BOOTSTRAPPED
#include "qdbus_symbols_p.h"
#include "qdbusmessage.h"
#include "qdbusmessage_p.h"
#endif
 
#ifndef QT_NO_DBUS
 
QT_BEGIN_NAMESPACE
 
QT_IMPL_METATYPE_EXTERN(QDBusError)
 
static constexpr const auto errorMessages = qOffsetStringArray(
    "NoError",
    "other",
    "org.freedesktop.DBus.Error.Failed",
    "org.freedesktop.DBus.Error.NoMemory",
    "org.freedesktop.DBus.Error.ServiceUnknown",
    "org.freedesktop.DBus.Error.NoReply",
    "org.freedesktop.DBus.Error.BadAddress",
    "org.freedesktop.DBus.Error.NotSupported",
    "org.freedesktop.DBus.Error.LimitsExceeded",
    "org.freedesktop.DBus.Error.AccessDenied",
    "org.freedesktop.DBus.Error.NoServer",
    "org.freedesktop.DBus.Error.Timeout",
    "org.freedesktop.DBus.Error.NoNetwork",
    "org.freedesktop.DBus.Error.AddressInUse",
    "org.freedesktop.DBus.Error.Disconnected",
    "org.freedesktop.DBus.Error.InvalidArgs",
    "org.freedesktop.DBus.Error.UnknownMethod",
    "org.freedesktop.DBus.Error.TimedOut",
    "org.freedesktop.DBus.Error.InvalidSignature",
    "org.freedesktop.DBus.Error.UnknownInterface",
    "org.freedesktop.DBus.Error.UnknownObject",
    "org.freedesktop.DBus.Error.UnknownProperty",
    "org.freedesktop.DBus.Error.PropertyReadOnly",
    "org.qtproject.QtDBus.Error.InternalError",
    "org.qtproject.QtDBus.Error.InvalidService",
    "org.qtproject.QtDBus.Error.InvalidObjectPath",
    "org.qtproject.QtDBus.Error.InvalidInterface",
    "org.qtproject.QtDBus.Error.InvalidMember",
    ""
);
 
#ifndef QT_BOOTSTRAPPED
static inline QDBusError::ErrorType get(const char *name)
{
    if (!name || !*name)
        return QDBusError::NoError;
    for (int i = 0; i < errorMessages.count(); ++i)
        if (strcmp(name, errorMessages.at(i)) == 0)
            return QDBusError::ErrorType(i);
    return QDBusError::Other;
}
#endif
 
QDBusError::QDBusError()
    : code(NoError)
{
    // ### This class has an implicit (therefore inline) destructor
    // so the following field cannot be used.
    Q_UNUSED(unused);
}
 
#ifndef QT_BOOTSTRAPPED
QDBusError::QDBusError(const DBusError *error)
    : code(NoError)
{
    if (!error || !q_dbus_error_is_set(error))
        return;
 
    code = get(error->name);
    msg = QString::fromUtf8(error->message);
    nm = QString::fromUtf8(error->name);
}
 
QDBusError::QDBusError(const QDBusMessage &qdmsg)
    : code(NoError)
{
    if (qdmsg.type() != QDBusMessage::ErrorMessage)
        return;
 
    code = get(qdmsg.errorName().toUtf8().constData());
    nm = qdmsg.errorName();
    msg = qdmsg.errorMessage();
}
#endif
 
QDBusError::QDBusError(ErrorType error, const QString &mess)
    : code(error)
{
    nm = QLatin1StringView(errorMessages[error]);
    msg = mess;
}
 
QDBusError::QDBusError(const QDBusError &other)
        : code(other.code), msg(other.msg), nm(other.nm)
{
}
 
QDBusError &QDBusError::operator=(const QDBusError &other)
{
    code = other.code;
    msg = other.msg;
    nm = other.nm;
    return *this;
}
 
#ifndef QT_BOOTSTRAPPED
QDBusError &QDBusError::operator=(const QDBusMessage &qdmsg)
{
    if (qdmsg.type() == QDBusMessage::ErrorMessage) {
        code = get(qdmsg.errorName().toUtf8().constData());
        nm = qdmsg.errorName();
        msg = qdmsg.errorMessage();
    } else {
        code =NoError;
        nm.clear();
        msg.clear();
    }
    return *this;
}
#endif
 
QDBusError::ErrorType QDBusError::type() const
{
    return code;
}
 
QString QDBusError::name() const
{
    return nm;
}
 
QString QDBusError::message() const
{
    return msg;
}
 
bool QDBusError::isValid() const
{
    return (code != NoError);
}
 
QString QDBusError::errorString(ErrorType error)
{
    return QLatin1StringView(errorMessages[error]);
}
 
#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug dbg, const QDBusError &msg)
{
    QDebugStateSaver saver(dbg);
    dbg.nospace() << "QDBusError(" << msg.name() << ", " << msg.message() << ')';
    return dbg;
}
#endif
 
QT_END_NAMESPACE
 
#include "moc_qdbuserror.cpp"
 
#endif // QT_NO_DBUS
 
/*
MSVC2015 has the warning C4503 at the end of the file:
QtPrivate::StaticStringBuilder<QtPrivate::IndexesList<...> - decorated name length exceeded, name was truncated
It is used by qOffsetStringArray in a constexpr evaluation and this code does not exist in the object file,
but we still have the warning or even error with -WX flag
*/
QT_WARNING_DISABLE_MSVC(4503)