libdistrio_common: add corba helper functions

- to initialize orb
- to register new digital objects at the naming service
- to run the orb

Signed-off-by: Manuel Traut <manut@mecka.net>

1 files changed, 87 insertions, 0 deletions

diff --git a/common/common.cpp b/common/common.cpp
new file mode 100644
index 0000000..b8c4453
--- /dev/null
+++ b/common/common.cpp
@@ -0,0 +1,87 @@
+/**
+ * @author Manuel Traut <manut@mecka.net>
+ * @licence GPLv2
+ */
+
+#include <iostream>
+
+#include "common.h"
+
+int init_corba (int argc, char **argv)
+{
+	int ret = 0;
+	CORBA::Object_var obj, root_poa, naming_service;
+
+	try {
+		ref.orb = CORBA::ORB_init (argc, argv);
+		root_poa = ref.orb->resolve_initial_references ("RootPOA");
+		ref.poa = PortableServer::POA::_narrow (root_poa.in ());
+
+		naming_service = ref.orb->resolve_initial_references ("NameService");
+		if (CORBA::is_nil (naming_service)) {
+			std::cerr << "can't resolve NameService" << std::endl;
+			ret = -EINVAL;
+			goto out;
+		}
+		ref.nc = CosNaming::NamingContext::_narrow (naming_service.in ());
+		if (CORBA::is_nil (ref.nc)) {
+			std::cerr << "resolved invalid NameService object" << std::endl;
+			ret = -EINVAL;
+			goto out;
+		}
+	} catch (CORBA::Exception &e) {
+		std::cerr << "CORBA initialization failed: " << e << std::endl;
+		ret = -EINVAL;
+		goto out;
+	}
+
+out:
+	return ret;
+}
+
+int register_digital (char *_name, Distrio_Digital_i *digital)
+{
+	CosNaming::Name name;
+	CORBA::Object_var obj;
+	PortableServer::ObjectId_var oid;
+
+	if (!ref.init) {
+		std::cerr << "corba not initialized" << std::endl;
+		return -1;
+	}
+
+	try {
+		oid = ref.poa->activate_object (digital);
+		obj = digital->_this ();
+
+		/* TODO: find out how to build a tree @ the nameservice "distrio/manager" */
+		name.length (1);
+		name[0].id = CORBA::string_dup (_name);
+		ref.nc->rebind (name, obj.in ());
+	} catch (CORBA::Exception &e) {
+		std::cerr << "CORBA initialization failed: " << e << std::endl;
+		return -1;
+	}
+
+	return 0;
+}
+
+int run_orb ()
+{
+	if (!ref.init) {
+		std::cerr << "corba not initialized" << std::endl;
+		return -1;
+	}
+
+	try {
+		ref.poa_mgr = ref.poa->the_POAManager ();
+		ref.poa_mgr->activate ();
+		ref.orb->run ();
+		ref.orb->destroy ();
+	} catch (CORBA::Exception &e) {
+		std::cerr << "CORBA initialization failed: " << e << std::endl;
+		return -1;
+	}
+
+	return 0;
+}