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/*
Copyright (C) 1999 Stefan Westerfeld
[email protected]
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 02111-1307, USA.
Permission is also granted to link this program with the Qt
library, treating Qt like a library that normally accompanies the
operating system kernel, whether or not that is in fact the case.
*/
#include "common.h"
#include <stdio.h>
#include <stdlib.h>
#include <vector>
#include <string>
using namespace std;
using namespace Arts;
static void printInterface(InterfaceDef id)
{
string inherit;
if(id.inheritedInterfaces.size())
{
vector<string>::iterator ii;
bool first = true;
inherit = ": ";
for(ii = id.inheritedInterfaces.begin(); ii != id.inheritedInterfaces.end(); ii++)
{
if(!first) inherit +=",";
first = false;
inherit += (*ii)+" ";
}
}
printf("interface %s %s{\n",id.name.c_str(),inherit.c_str());
// attributes, streams
vector<AttributeDef>::iterator ai;
for(ai = id.attributes.begin(); ai != id.attributes.end(); ai++)
{
const AttributeDef& ad = *ai;
if(ad.flags & attributeAttribute)
{
/* readwrite */
if(ad.flags & (streamOut|streamIn) == (streamOut|streamIn))
{
printf(" attribute %s %s;\n",ad.type.c_str(), ad.name.c_str());
}
else
{
if(ad.flags & streamOut) /* readable from outside */
{
printf(" readonly attribute %s %s;\n",
ad.type.c_str(), ad.name.c_str());
}
if(ad.flags & streamIn) /* writeable from outside */
{
printf(" ?writeonly? attribute %s %s;\n",
ad.type.c_str(), ad.name.c_str());
}
}
}
if(ad.flags & attributeStream)
{
const char *dir = (ad.flags & streamOut)?"out":"in";
const char *async = (ad.flags & streamAsync)?"async ":"";
string type = ad.type;
if(type == "float" && !(ad.flags & streamAsync)) type = "audio";
printf(" %s%s %s stream %s;\n",async,dir,
type.c_str(),ad.name.c_str());
}
}
// methods
vector<MethodDef>::iterator mi;
for(mi = id.methods.begin();mi != id.methods.end(); mi++)
{
MethodDef& md = *mi;
printf(" %s %s(",md.type.c_str(),md.name.c_str());
bool first = true;
vector<ParamDef>::iterator pi;
for(pi = md.signature.begin(); pi != md.signature.end(); pi++)
{
ParamDef& pd = *pi;
if(!first) printf(", ");
printf("%s %s",pd.type.c_str(),pd.name.c_str());
first = false;
}
printf(");\n");
}
printf("}\n");
}
/*
* This demo shows that you can find out what interface an object has and
* what types it needs to work without knowing anything but the object
* reference.
*
* The reason for that is that every object offers the _interfaceName
* _queryInterface and _queryType methods, which you can use to find out
* anything you need to know to talk to that object.
*
* Just pass this programm an MCOP object reference, and it will print out
* the corresponding interface.
*
* (TODO: one could make it print out all inherited interfaces and the
* types that are used in the interface, too. Ports, etc could be shown
* as well).
*/
/**
* Interface repository demo - reasonable testcase:
*
* - make sure artsd is running
* - irdemo global:Arts_SimpleSoundServer
*/
int main(int argc, char **argv)
{
if(argc != 2)
{
fprintf(stderr,"usage: %s <mcop reference>\n",argv[0]);
exit(1);
}
Dispatcher dispatcher;
Object o = Reference(argv[1]);
if(o.isNull())
{
fprintf(stderr,"can't connect to the object\n");
exit(1);
}
string iname = o._interfaceName();
InterfaceDef idef = o._queryInterface(iname);
printInterface(idef);
return 0;
}
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