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arts/mcop/dynamicskeleton.cc

205 lines
5.3 KiB

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