src/corba/pgsql.idl

-#ifndef pgsql_idl
-#define pgsql_idl
-
-#ifndef CosQuery_idl
-#include "CosQuery.idl"
-#endif
-
-#ifndef CosQueryCollection_idl
-#include "CosQueryCollection.idl"
-#endif
-
-module PostgreSQL {
-	
-	// Built-in types
-	
-	module Types {
-		// Arrays in network order
-		typedef short int2;
-		typedef long int4;
-		typedef long int8[2];
-	};
-	
-	
-	// NULL support
-	
-	typedef boolean Null;
-	
-	union Value switch (Null) {
-	  case false: any value;
-	};
-	
-	
-	// Row definition
-	
-	typedef sequence<Value> Row;
-	
-	// <info>
-	// More about the application of COSS:
-	// 
-	// A Table will be a QueryableCollection of Rows
-	// A Database will be a QueryableCollection of Tables
-	// (Currently Tables are not exported... maybe later.)
-	// Both will be queryable via the Query Service
-	// 
-	// Other relations will be representable using the Relationship Service
-	// This includes primary/foreign keys and anything else :)
-	// 
-	// GRANT/REVOKE can be supplied via the Security Service
-	// 
-	// See a pattern here? The whole of SQL can be implemented by these services!
-	// The statements go through a parser. Queries and subqueries are passed to the
-	// database for processing. Returned items are handled appropriately:
-	// 
-	// SELECT: return the items to the caller
-	// UPDATE: modify the items (direct)
-	// DELETE: call delete() on each Row (direct)
-	// GRANT/REVOKE: modify ACLs (via Security Service)
-	// ALTER: modify the items (direct) and/or the relations (via Relationship Service)
-	// etc.
-	// 
-	// I'm not sure yet about LOCK and UNLOCK.
-	// </info>
-	
-	
-	// Connected database object
-	
-	interface Database : CosQuery::QueryableCollection {
-		void disconnect();
-	};
-	
-	
-	// Server object (stateless)
-	
-	interface Server {
-		Database connect(in string db, in string user, in string password);
-	};
-};
-
-#endif // pgsql_idl
+#ifndef pgsql_idl
+#define pgsql_idl
+
+#ifndef CosQuery_idl
+#include "CosQuery.idl"
+#endif
+
+#ifndef CosQueryCollection_idl
+#include "CosQueryCollection.idl"
+#endif
+
+#pragma prefix ""
+
+module PostgreSQL {
+	
+	// Built-in types
+	
+	module Types {
+		// Arrays in network order
+		typedef short int2;
+		typedef long int4;
+		typedef long int8[2];
+	};
+	
+	
+	// NULL support
+	
+	typedef boolean Null;
+	
+	union Value switch (Null) {
+	  case FALSE: any value;
+	};
+	
+	
+	// Row definition
+	
+	typedef sequence<Value> Row;
+	
+	// <info>
+	// More about the application of COSS:
+	// 
+	// A Table will be a QueryableCollection of Rows
+	// A Database will be a QueryableCollection of Tables
+	// (Currently Tables are not exported... maybe later.)
+	// Both will be queryable via the Query Service
+	// 
+	// Other relations will be representable using the Relationship Service
+	// This includes primary/foreign keys and anything else :)
+	// 
+	// GRANT/REVOKE can be supplied via the Security Service
+	// 
+	// See a pattern here? The whole of SQL can be implemented by these services!
+	// The statements go through a parser. Queries and subqueries are passed to the
+	// database for processing. Returned items are handled appropriately:
+	// 
+	// SELECT: return the items to the caller
+	// UPDATE: modify the items (direct)
+	// DELETE: call delete() on each Row (direct)
+	// GRANT/REVOKE: modify ACLs (via Security Service)
+	// ALTER: modify the items (direct) and/or the relations (via Relationship Service)
+	// etc.
+	// 
+	// I'm not sure yet about LOCK and UNLOCK.
+	// </info>
+	
+	// Expirable object
+	
+	interface Expirable {
+		/* oneway? */ void keepalive();
+		void remove();
+	};
+	
+	
+	// Upcall object
+	
+	interface Upcall {
+		void notice(in string message);
+		void abort();
+	};
+	
+		
+	// Connected database object
+	
+	interface Database : CosQuery::QueryableCollection, Expirable {
+		void setupcall(in Upcall obj);
+	};
+	
+	
+	// Server object (stateless)
+	
+	interface Server {
+		Database connect(in string db, in string user, in string password);
+	};
+};
+
+#endif // pgsql_idl

src/corba/pgsql_int.idl

+// Internal interfaces
+
+#include "pgsql.idl"
+
+module PostgreSQL {
+	interface QueryResult : CosQueryCollection::Collection, Expirable {};
+};

src/corba/server.cc

+#include <iostream>
+#include "pgsql_int.h"
+
+bool terminate = false;
+
+int main(int argc, char *argv)
+{
+	CORBA::ORB_var orb = CORBA::ORB_init(argc,argv,"");
+	PortableManager::POA_var poa = PortableServer::POA::_narrow(orb->resolve_initial_references("RootPOA"));
+	PortableManager::POAManager_var mgr = poa->the_POAManager();
+	
+	Server_impl *server = new Server_impl;
+	poa->activate_object(server);
+	
+	CosNaming::NamingContext_var ctx = CosNaming::NamingContext::_narrow(orb->resolve_initial_references("NamingService"));
+	CosNaming::Name_var n = new CosNaming::Name(1);
+	n[0].id("PostgreSQL");
+	n[0].name("service");
+	bool bindok = false;
+	
+	if (!CORBA::Object::is_nil(ctx)) {
+		try {
+			CosNaming::NamingContext_var myctx = ctx->bind_new_context(n);
+			CosNaming::Name_var n2 = new CosNaming::Name(1);
+			n2[0].id("Server");
+			n2[0].name("Server");
+			myctx->bind(n2,server->_this());
+			bindok = true;
+		} catch (CORBA::Exception &e) {
+			cerr << "Warning: Naming Service bind failed" << endl;
+			bindok = false;
+		}
+	} else {
+		cerr << "Warning: Naming Service not found" << endl;
+	}
+	
+	mgr->activate();
+	while (!terminate) {
+		if (orb->work_pending())
+			orb->perform_work();
+		if (expiry_needed())
+			expire_now();
+	}
+	
+	if (!CORBA::Object::is_nil(ctx) && bindok) {
+		try {
+			CosNaming::NamingContext myctx = ctx->resolve(n);
+			ctx->unbind(n);
+			myctx->destroy();
+		} catch (CORBA::Exception &e) {
+			cerr << "Warning: Naming Service unbind failed" << endl;
+		}
+	}
+	
+	orb->shutdown(true);
+	
+	delete server;
+	return 0;
+}