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/* |
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* |
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* D-Bus++ - C++ bindings for D-Bus |
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* |
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* Copyright (C) 2005-2007 Paolo Durante <shackan@gmail.com> |
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* |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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*/ |
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#include <dbus-c++/debug.h> |
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#include <dbus-c++/object.h> |
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#include "internalerror.h" |
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#include <map> |
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#include <dbus/dbus.h> |
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#include "message_p.h" |
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#include "server_p.h" |
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#include "connection_p.h" |
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using namespace DBus; |
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Object::Object( Connection& conn, const Path& path, const char* service ) |
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: _conn(conn), _path(path), _service(service ? service : "") |
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{ |
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} |
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Object::~Object() |
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{ |
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} |
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struct ObjectAdaptor::Private |
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{ |
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static void unregister_function_stub( DBusConnection*, void* ); |
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static DBusHandlerResult message_function_stub( DBusConnection*, DBusMessage*, void* ); |
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}; |
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static DBusObjectPathVTable _vtable = |
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{ |
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ObjectAdaptor::Private::unregister_function_stub, |
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ObjectAdaptor::Private::message_function_stub, |
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NULL, NULL, NULL, NULL |
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}; |
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void ObjectAdaptor::Private::unregister_function_stub( DBusConnection* conn, void* data ) |
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{ |
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//TODO: what do we have to do here ? |
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} |
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DBusHandlerResult ObjectAdaptor::Private::message_function_stub( DBusConnection*, DBusMessage* dmsg, void* data ) |
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{ |
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ObjectAdaptor* o = static_cast<ObjectAdaptor*>(data); |
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if( o ) |
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{ |
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Message msg(new Message::Private(dmsg)); |
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debug_log("in object %s", o->path().c_str()); |
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debug_log(" got message #%d from %s to %s", |
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msg.serial(), |
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msg.sender(), |
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msg.destination() |
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); |
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return o->handle_message(msg) |
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? DBUS_HANDLER_RESULT_HANDLED |
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: DBUS_HANDLER_RESULT_NOT_YET_HANDLED; |
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} |
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else |
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{ |
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; |
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} |
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} |
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typedef std::map<Path, ObjectAdaptor*> ObjectAdaptorTable; |
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static ObjectAdaptorTable _adaptor_table; |
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ObjectAdaptor* ObjectAdaptor::from_path( const Path& path ) |
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{ |
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ObjectAdaptorTable::iterator ati = _adaptor_table.find(path); |
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if(ati != _adaptor_table.end()) |
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return ati->second; |
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return NULL; |
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} |
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ObjectAdaptorPList ObjectAdaptor::from_path_prefix( const std::string& prefix ) |
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{ |
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ObjectAdaptorPList ali; |
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ObjectAdaptorTable::iterator ati = _adaptor_table.begin(); |
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size_t plen = prefix.length(); |
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while(ati != _adaptor_table.end()) |
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{ |
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if(!strncmp(ati->second->path().c_str(), prefix.c_str(), plen)) |
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ali.push_back(ati->second); |
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++ati; |
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} |
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return ali; |
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} |
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ObjectAdaptor::ObjectAdaptor( Connection& conn, const Path& path ) |
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: Object(conn, path, conn.unique_name()) |
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{ |
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register_obj(); |
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} |
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ObjectAdaptor::~ObjectAdaptor() |
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{ |
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unregister_obj(); |
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} |
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void ObjectAdaptor::register_obj() |
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{ |
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debug_log("registering local object %s", path().c_str()); |
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if(!dbus_connection_register_object_path(conn()._pvt->conn, path().c_str(), &_vtable, this)) |
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{ |
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throw ErrorNoMemory("unable to register object path"); |
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} |
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else |
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{ |
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InterfaceAdaptorTable::const_iterator ii = _interfaces.begin(); |
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while( ii != _interfaces.end() ) |
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{ |
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std::string im = "type='method_call',interface='"+ii->first+"',path='"+path()+"'"; |
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conn().add_match(im.c_str()); |
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++ii; |
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} |
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} |
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_adaptor_table[path()] = this; |
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} |
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void ObjectAdaptor::unregister_obj() |
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{ |
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_adaptor_table.erase(path()); |
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debug_log("unregistering local object %s", path().c_str()); |
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dbus_connection_unregister_object_path(conn()._pvt->conn, path().c_str()); |
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InterfaceAdaptorTable::const_iterator ii = _interfaces.begin(); |
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while( ii != _interfaces.end() ) |
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{ |
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std::string im = "type='method_call',interface='"+ii->first+"',path='"+path()+"'"; |
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conn().remove_match(im.c_str()); |
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++ii; |
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} |
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} |
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void ObjectAdaptor::_emit_signal( SignalMessage& sig ) |
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{ |
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sig.path(path().c_str()); |
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conn().send(sig); |
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} |
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struct ReturnLaterError |
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{ |
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const Tag* tag; |
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}; |
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bool ObjectAdaptor::handle_message( const Message& msg ) |
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{ |
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switch( msg.type() ) |
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{ |
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case DBUS_MESSAGE_TYPE_METHOD_CALL: |
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{ |
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const CallMessage& cmsg = reinterpret_cast<const CallMessage&>(msg); |
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const char* member = cmsg.member(); |
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const char* interface = cmsg.interface(); |
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debug_log(" invoking method %s.%s", interface, member); |
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InterfaceAdaptor* ii = find_interface(interface); |
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if( ii ) |
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{ |
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try |
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{ |
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Message ret = ii->dispatch_method(cmsg); |
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conn().send(ret); |
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} |
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catch(Error& e) |
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{ |
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ErrorMessage em(cmsg, e.name(), e.message()); |
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conn().send(em); |
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} |
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catch(ReturnLaterError& rle) |
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{ |
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_continuations[rle.tag] = new Continuation(conn(), cmsg, rle.tag); |
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} |
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return true; |
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} |
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else |
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{ |
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return false; |
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} |
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} |
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default: |
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{ |
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return false; |
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} |
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} |
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} |
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void ObjectAdaptor::return_later( const Tag* tag ) |
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{ |
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ReturnLaterError rle = { tag }; |
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throw rle; |
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} |
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void ObjectAdaptor::return_now( Continuation* ret ) |
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{ |
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ret->_conn.send(ret->_return); |
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ContinuationMap::iterator di = _continuations.find(ret->_tag); |
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delete di->second; |
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_continuations.erase(di); |
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} |
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void ObjectAdaptor::return_error( Continuation* ret, const Error error ) |
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{ |
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ret->_conn.send(ErrorMessage(ret->_call, error.name(), error.message())); |
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ContinuationMap::iterator di = _continuations.find(ret->_tag); |
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delete di->second; |
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_continuations.erase(di); |
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} |
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ObjectAdaptor::Continuation* ObjectAdaptor::find_continuation( const Tag* tag ) |
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{ |
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ContinuationMap::iterator di = _continuations.find(tag); |
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return di != _continuations.end() ? di->second : NULL; |
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} |
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ObjectAdaptor::Continuation::Continuation( Connection& conn, const CallMessage& call, const Tag* tag ) |
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: _conn(conn), _call(call), _return(_call), _tag(tag) |
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{ |
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_writer = _return.writer(); //todo: verify |
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} |
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/* |
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*/ |
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ObjectProxy::ObjectProxy( Connection& conn, const Path& path, const char* service ) |
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: Object(conn, path, service) |
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{ |
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register_obj(); |
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} |
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ObjectProxy::~ObjectProxy() |
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{ |
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unregister_obj(); |
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} |
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void ObjectProxy::register_obj() |
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{ |
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debug_log("registering remote object %s", path().c_str()); |
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_filtered = new Callback<ObjectProxy, bool, const Message&>(this, &ObjectProxy::handle_message); |
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conn().add_filter(_filtered); |
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InterfaceProxyTable::const_iterator ii = _interfaces.begin(); |
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while( ii != _interfaces.end() ) |
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{ |
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std::string im = "type='signal',interface='"+ii->first+"',path='"+path()+"'"; |
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conn().add_match(im.c_str()); |
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++ii; |
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} |
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} |
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void ObjectProxy::unregister_obj() |
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{ |
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debug_log("unregistering remote object %s", path().c_str()); |
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InterfaceProxyTable::const_iterator ii = _interfaces.begin(); |
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while( ii != _interfaces.end() ) |
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{ |
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std::string im = "type='signal',interface='"+ii->first+"',path='"+path()+"'"; |
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conn().remove_match(im.c_str()); |
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++ii; |
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} |
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conn().remove_filter(_filtered); |
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} |
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Message ObjectProxy::_invoke_method( CallMessage& call ) |
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{ |
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call.path(path().c_str()); |
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call.destination(service().c_str()); |
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return conn().send_blocking(call, 2000); |
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} |
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bool ObjectProxy::handle_message( const Message& msg ) |
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{ |
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switch( msg.type() ) |
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{ |
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case DBUS_MESSAGE_TYPE_SIGNAL: |
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{ |
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const SignalMessage& smsg = reinterpret_cast<const SignalMessage&>(msg); |
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const char* interface = smsg.interface(); |
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const char* member = smsg.member(); |
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const char* objpath = smsg.path(); |
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if( objpath != path() ) return false; |
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debug_log("filtered signal %s(in %s) from %s to object %s", |
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member, interface, msg.sender(), objpath); |
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InterfaceProxy* ii = find_interface(interface); |
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if( ii ) |
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{ |
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return ii->dispatch_signal(smsg); |
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} |
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else |
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{ |
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return false; |
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} |
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} |
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default: |
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{ |
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return false; |
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} |
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} |
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} |
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