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dbus-1-tqt/tqdbusconnection.cpp

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11 KiB

/* qdbusconnection.cpp
*
* Copyright (C) 2005 Harald Fernengel <harry@tdevelop.org>
* Copyright (C) 2005-2007 Kevin Krammer <kevin.krammer@gmx.at>
*
* Licensed under the Academic Free License version 2.1
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*/
#include <tqapplication.h>
#include "tqdbusconnection.h"
#include "tqdbuserror.h"
#include "tqdbusmessage.h"
#include "tqdbusconnection_p.h"
#include "tqdbusmessage_p.h"
QT_STATIC_CONST_IMPL char *TQT_DBusConnection::default_connection_name = "qt_dbus_default_connection";
class TQT_DBusConnectionManager
{
public:
TQT_DBusConnectionManager(): default_connection(0) {}
~TQT_DBusConnectionManager();
void bindToApplication();
TQT_DBusConnectionPrivate *connection(const TQString &name) const;
void removeConnection(const TQString &name);
void setConnection(const TQString &name, TQT_DBusConnectionPrivate *c);
static TQT_DBusConnectionManager* instance() {
if (managerInstance == 0) managerInstance = new TQT_DBusConnectionManager();
return managerInstance;
}
private:
TQT_DBusConnectionPrivate *default_connection;
// FIXME-QT4 TQHash<TQString, TQT_DBusConnectionPrivate *> connectionHash;
typedef TQMap<TQString, TQT_DBusConnectionPrivate*> ConnectionHash;
ConnectionHash connectionHash;
static TQT_DBusConnectionManager* managerInstance;
};
// FIXME-QT4 TQ_GLOBAL_STATIC(TQT_DBusConnectionManager, manager);
TQT_DBusConnectionManager* TQT_DBusConnectionManager::managerInstance = 0;
TQT_DBusConnectionManager* manager() {
return TQT_DBusConnectionManager::instance();
}
TQT_DBusConnectionPrivate *TQT_DBusConnectionManager::connection(const TQString &name) const
{
if (name == TQString::fromLatin1(TQT_DBusConnection::default_connection_name))
return default_connection;
ConnectionHash::const_iterator it = connectionHash.find(name);
return (it != connectionHash.end() ? it.data() : 0);
}
void TQT_DBusConnectionManager::removeConnection(const TQString &name)
{
TQT_DBusConnectionPrivate *d = 0;
if (name == TQString::fromLatin1(TQT_DBusConnection::default_connection_name)) {
d = default_connection;
default_connection = 0;
} else {
ConnectionHash::iterator it = connectionHash.find(name);
if (it == connectionHash.end())
return;
d = it.data();
connectionHash.erase(it);
}
if (!d->ref.deref())
delete d;
}
TQT_DBusConnectionManager::~TQT_DBusConnectionManager()
{
if (default_connection) {
delete default_connection;
default_connection = 0;
}
/* FIXME-QT4
for (TQHash<TQString, TQT_DBusConnectionPrivate *>::const_iterator it = connectionHash.constBegin();
it != connectionHash.constEnd(); ++it) {
delete it.value();
}*/
for (ConnectionHash::const_iterator it = connectionHash.constBegin();
it != connectionHash.constEnd(); ++it)
{
delete it.data();
}
connectionHash.clear();
}
void TQT_DBusConnectionManager::bindToApplication()
{
if (default_connection) {
default_connection->bindToApplication();
}
/* FIXME-QT4
for (TQHash<TQString, TQT_DBusConnectionPrivate *>::const_iterator it = connectionHash.constBegin();
it != connectionHash.constEnd(); ++it) {
(*it)->bindToApplication();
}*/
for (ConnectionHash::const_iterator it = connectionHash.constBegin();
it != connectionHash.constEnd(); ++it)
{
it.data()->bindToApplication();
}
}
void qDBusBindToApplication()
{
manager()->bindToApplication();
}
void TQT_DBusConnectionManager::setConnection(const TQString &name, TQT_DBusConnectionPrivate *c)
{
if (name == TQString::fromLatin1(TQT_DBusConnection::default_connection_name))
default_connection = c;
else
connectionHash[name] = c;
}
TQT_DBusConnection::TQT_DBusConnection() : d(0)
{
}
TQT_DBusConnection::TQT_DBusConnection(const TQString &name)
{
d = manager()->connection(name);
if (d)
d->ref.ref();
}
TQT_DBusConnection::TQT_DBusConnection(const TQT_DBusConnection &other)
{
d = other.d;
if (d)
d->ref.ref();
}
TQT_DBusConnection::~TQT_DBusConnection()
{
if (d && !d->ref.deref())
delete d;
}
TQT_DBusConnection &TQT_DBusConnection::operator=(const TQT_DBusConnection &other)
{
if (other.d)
other.d->ref.ref();
/* FIXME-QT4
TQT_DBusConnectionPrivate *old = static_cast<TQT_DBusConnectionPrivate *>(
q_atomic_set_ptr(&d, other.d));*/
TQT_DBusConnectionPrivate* old = d;
d = other.d;
if (old && !old->ref.deref())
delete old;
return *this;
}
TQT_DBusConnection TQT_DBusConnection::sessionBus()
{
return addConnection(TQT_DBusConnection::SessionBus);
}
TQT_DBusConnection TQT_DBusConnection::systemBus()
{
return addConnection(TQT_DBusConnection::SystemBus);
}
TQT_DBusConnection TQT_DBusConnection::addConnection(BusType type, const TQString &name)
{
// Q_ASSERT_X(TQCoreApplication::instance(), "TQT_DBusConnection::addConnection",
// "Cannot create connection without a Q[Core]Application instance");
TQT_DBusConnectionPrivate *d = manager()->connection(name);
if (d)
return TQT_DBusConnection(name);
d = new TQT_DBusConnectionPrivate;
DBusConnection *c = 0;
switch (type) {
case SystemBus:
c = dbus_bus_get(DBUS_BUS_SYSTEM, &d->error);
break;
case SessionBus:
c = dbus_bus_get(DBUS_BUS_SESSION, &d->error);
break;
case ActivationBus:
c = dbus_bus_get(DBUS_BUS_STARTER, &d->error);
break;
}
d->setConnection(c); //setConnection does the error handling for us
manager()->setConnection(name, d);
return TQT_DBusConnection(name);
}
TQT_DBusConnection TQT_DBusConnection::addConnection(const TQString &address,
const TQString &name)
{
// Q_ASSERT_X(TQCoreApplication::instance(), "TQT_DBusConnection::addConnection",
// "Cannot create connection without a Q[Core]Application instance");
TQT_DBusConnectionPrivate *d = manager()->connection(name);
if (d)
return TQT_DBusConnection(name);
d = new TQT_DBusConnectionPrivate;
// setConnection does the error handling for us
d->setConnection(dbus_connection_open(address.utf8().data(), &d->error));
manager()->setConnection(name, d);
return TQT_DBusConnection(name);
}
void TQT_DBusConnection::closeConnection(const TQString &name)
{
manager()->removeConnection(name);
}
void TQT_DBusConnectionPrivate::timerEvent(TQTimerEvent *e)
{
DBusTimeout *timeout = timeouts[e->timerId()];
dbus_timeout_handle(timeout);
}
bool TQT_DBusConnection::send(const TQT_DBusMessage &message) const
{
if (!d || !d->connection)
return false;
DBusMessage *msg = message.toDBusMessage();
if (!msg)
return false;
bool isOk = dbus_connection_send(d->connection, msg, 0);
dbus_message_unref(msg);
return isOk;
}
int TQT_DBusConnection::sendWithAsyncReply(const TQT_DBusMessage &message, TQObject *receiver,
const char *method) const
{
if (!d || !d->connection)
return 0;
return d->sendWithReplyAsync(message, receiver, method);
}
TQT_DBusMessage TQT_DBusConnection::sendWithReply(const TQT_DBusMessage &message, TQT_DBusError *error) const
{
if (!d || !d->connection)
return TQT_DBusMessage::fromDBusMessage(0);
DBusMessage *msg = message.toDBusMessage();
if (!msg)
return TQT_DBusMessage::fromDBusMessage(0);
DBusMessage *reply = dbus_connection_send_with_reply_and_block(d->connection, msg,
-1, &d->error);
if (d->handleError() && error)
*error = d->lastError;
dbus_message_unref(msg);
TQT_DBusMessage ret = TQT_DBusMessage::fromDBusMessage(reply);
// HACK
// Reset the error object if no error was reported by DBus
// This is needed because TQT_DBusMessage::fromDBusMessage sometimes sets the error object even if DBus did not report a fatal error,
// and the dbus_error_is_set() check cannot be moved inside fromDBusMessage() without breaking the API and ABI.
if (!dbus_error_is_set(&d->error)) {
ret.d->error = TQT_DBusError();
if (error) *error = TQT_DBusError();
}
return ret;
}
void TQT_DBusConnection::flush() const
{
if (!d || !d->connection) return;
d->flush();
}
void TQT_DBusConnection::dispatch() const
{
if (!d || !d->connection) return;
d->dispatch();
}
void TQT_DBusConnection::scheduleDispatch() const
{
if (!d || !d->connection) return;
d->scheduleDispatch();
}
bool TQT_DBusConnection::connect(TQObject* object, const char* slot)
{
if (!d || !d->connection || !object || !slot)
return false;
bool ok = object->connect(d, TQT_SIGNAL(dbusSignal(const TQT_DBusMessage&)), slot);
return ok;
}
bool TQT_DBusConnection::disconnect(TQObject* object, const char* slot)
{
if (!d || !d->connection || !object || !slot)
return false;
bool ok = d->disconnect(object, slot);
return ok;
}
bool TQT_DBusConnection::registerObject(const TQString& path, TQT_DBusObjectBase* object)
{
if (!d || !d->connection || !object || path.isEmpty())
return false;
TQT_DBusConnectionPrivate::ObjectMap::const_iterator it = d->registeredObjects.find(path);
if (it != d->registeredObjects.end())
return false;
d->registeredObjects.insert(path, object);
return true;
}
void TQT_DBusConnection::unregisterObject(const TQString &path)
{
if (!d || !d->connection || path.isEmpty())
return;
TQT_DBusConnectionPrivate::ObjectMap::iterator it = d->registeredObjects.find(path);
if (it == d->registeredObjects.end())
return ;
d->registeredObjects.erase(it);
}
bool TQT_DBusConnection::isConnected( ) const
{
return d && d->connection && dbus_connection_get_is_connected(d->connection);
}
TQT_DBusError TQT_DBusConnection::lastError() const
{
return d ? d->lastError : TQT_DBusError();
}
TQString TQT_DBusConnection::uniqueName() const
{
return d && d->connection ?
TQString::fromUtf8(dbus_bus_get_unique_name(d->connection))
: TQString();
}
bool TQT_DBusConnection::requestName(const TQString &name, int modeFlags)
{
Q_ASSERT(modeFlags >= 0);
if (!d || !d->connection)
return false;
if (modeFlags < 0)
return false;
int dbusFlags = 0;
if (modeFlags & AllowReplace)
dbusFlags |= DBUS_NAME_FLAG_ALLOW_REPLACEMENT;
if (modeFlags & ReplaceExisting)
dbusFlags |= DBUS_NAME_FLAG_REPLACE_EXISTING;
dbus_bus_request_name(d->connection, name.utf8(), dbusFlags, &d->error);
return !d->handleError();
}
#include "tqdbusconnection.moc"