/* Copyright (C) 1999 Stefan Westerfeld stefan@space.twc.de 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. 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; }