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205 lines
5.3 KiB
205 lines
5.3 KiB
/*
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Copyright (C) 2001 Stefan Westerfeld
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stefan@space.twc.de
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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 Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "dynamicskeleton.h"
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#include "dispatcher.h"
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#include "debug.h"
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#include "stdio.h"
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using namespace Arts;
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using namespace std;
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/* we could share the "class part" of those implicitely, as
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types never change */
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namespace Arts {
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class DynamicSkeletonData {
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public:
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DynamicSkeletonData(DynamicSkeletonBase *base,
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Object_skel *skel,
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const string& interfaceName,
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const string& interfaceNameParent)
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: base(base), skel(skel), interfaceName(interfaceName),
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interfaceNameParent(interfaceNameParent)
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{
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}
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enum InterfaceType { itNone, itParent, itDynamic };
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void buildInterfaces();
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void buildInterfaces(const string& s, InterfaceType t);
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void buildMethodTable();
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DynamicSkeletonBase *base;
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Object_skel *skel;
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string interfaceName, interfaceNameParent;
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map<string, InterfaceType> interfaceMap;
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map<string, void**> attrs;
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};
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}
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DynamicSkeletonBase::DynamicSkeletonBase(Object_skel *skel,
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const std::string& interfaceName, const std::string& interfaceNameParent)
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{
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arts_assert(skel != 0);
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_dsInit(skel,interfaceName,interfaceNameParent);
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}
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DynamicSkeletonBase::DynamicSkeletonBase()
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{
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}
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void DynamicSkeletonBase::_dsInit(Object_skel *skel,
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const std::string& interfaceName, const std::string& interfaceNameParent)
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{
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d = new DynamicSkeletonData(this,skel,interfaceName,interfaceNameParent);
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d->buildInterfaces();
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/* TODO: optimize me! */
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map<string, DynamicSkeletonData::InterfaceType>::iterator ii;
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for(ii = d->interfaceMap.begin(); ii != d->interfaceMap.end(); ii++)
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{
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if(ii->second == DynamicSkeletonData::itDynamic)
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{
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InterfaceDef id;
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id = Dispatcher::the()->interfaceRepo().queryInterface(ii->first);
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vector<AttributeDef>::iterator ai;
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for(ai = id.attributes.begin(); ai != id.attributes.end(); ai++)
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{
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AttributeDef& ad = *ai;
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if((ad.flags & attributeStream) == attributeStream)
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{
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void**& data = d->attrs[ad.name.c_str()];
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arts_assert(data == 0);
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data = new (void*);
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d->skel->_initStream(ad.name.c_str(),data,ad.flags);
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}
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}
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}
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}
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}
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DynamicSkeletonBase::~DynamicSkeletonBase()
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{
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delete d;
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}
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std::string DynamicSkeletonBase::_dsInterfaceName()
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{
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return d->interfaceName;
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}
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bool DynamicSkeletonBase::_dsIsCompatibleWith(const std::string& interfacename)
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{
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d->buildInterfaces();
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return d->interfaceMap[interfacename] != 0;
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}
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void DynamicSkeletonBase::_dsBuildMethodTable()
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{
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d->buildMethodTable();
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}
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static void _dispatch_dynamic(void *object, long methodID, Buffer *request, Buffer *result)
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{
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((DynamicSkeletonBase *)object)->process(methodID, request, result);
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}
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void DynamicSkeletonData::buildMethodTable()
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{
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buildInterfaces();
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map<string, DynamicSkeletonData::InterfaceType>::iterator ii;
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for(ii = interfaceMap.begin(); ii != interfaceMap.end(); ii++)
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{
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if(ii->second == itDynamic)
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{
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InterfaceDef id;
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id = Dispatcher::the()->interfaceRepo().queryInterface(ii->first);
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/* methods */
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vector<MethodDef>::iterator mi;
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for(mi = id.methods.begin(); mi != id.methods.end(); mi++)
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skel->_addMethod(_dispatch_dynamic, base, *mi);
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/* _get_ and _set_ methods for attributes */
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vector<AttributeDef>::iterator ai;
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for(ai = id.attributes.begin();ai != id.attributes.end();ai++)
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{
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AttributeDef& ad = *ai;
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if(ad.flags & attributeAttribute)
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{
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MethodDef md;
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if(ad.flags & streamOut) /* readable from outside */
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{
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md.name = "_get_"+ad.name;
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md.type = ad.type;
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md.flags = methodTwoway;
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/* no parameters (don't set md.signature) */
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skel->_addMethod(_dispatch_dynamic, base, md);
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}
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if(ad.flags & streamIn) /* writeable from outside */
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{
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md.name = "_set_"+ad.name;
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md.type = "void";
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md.flags = methodTwoway;
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ParamDef pd;
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pd.type = ad.type;
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pd.name = "newValue";
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md.signature.push_back(pd);
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skel->_addMethod(_dispatch_dynamic, base, md);
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}
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}
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}
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}
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}
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}
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void DynamicSkeletonData::buildInterfaces()
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{
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if(interfaceMap.size() != 0) return;
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buildInterfaces(interfaceName, itDynamic);
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buildInterfaces(interfaceNameParent, itParent);
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}
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void DynamicSkeletonData::buildInterfaces(const string& name, DynamicSkeletonData::InterfaceType t)
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{
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InterfaceDef id = Dispatcher::the()->interfaceRepo().queryInterface(name);
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if(interfaceMap[name] == t) return;
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interfaceMap[name] = t;
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vector<string>::iterator ii;
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for(ii = id.inheritedInterfaces.begin();
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ii != id.inheritedInterfaces.end(); ii++)
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{
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buildInterfaces(*ii,t);
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}
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buildInterfaces("Arts::Object",t);
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}
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