--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sim/Connectivity.cc Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,177 @@
+/*
+ * Copyright 2005-2006 Intel Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <dtn-config.h>
+#endif
+
+#include <oasys/util/OptParser.h>
+#include <oasys/util/StringBuffer.h>
+
+#include "Connectivity.h"
+#include "Node.h"
+#include "SimEvent.h"
+#include "SimConvergenceLayer.h"
+#include "Topology.h"
+
+#include "contacts/ContactManager.h"
+#include "contacts/Link.h"
+#include "naming/EndpointID.h"
+
+namespace dtnsim {
+
+//----------------------------------------------------------------------
+Connectivity* Connectivity::instance_(NULL);
+std::string Connectivity::type_("");
+
+//----------------------------------------------------------------------
+Connectivity::Connectivity()
+ : Logger("Connectivity", "/sim/conn")
+{
+}
+
+//----------------------------------------------------------------------
+Connectivity*
+Connectivity::create_conn()
+{
+ ASSERT(type_ != "");
+
+ if (type_ == "static") {
+ // just the base class
+ return new Connectivity();
+ } else {
+ log_crit_p("/connectivity", "invalid connectivity module type %s",
+ type_.c_str());
+ return NULL;
+ }
+}
+
+//----------------------------------------------------------------------
+bool
+ConnState::parse_time(const char* time_str, double* time)
+{
+ char* end;
+ *time = strtod(time_str, &end);
+
+ if (end == time_str)
+ return false;
+
+ if (!strcmp(end, "us")) {
+ *time = *time / 1000000.0;
+ return true;
+
+ } else if (!strcmp(end, "ms")) {
+ *time = *time / 1000.0;
+ return true;
+
+ } else if (!strcmp(end, "s")) {
+ return true;
+
+ } else if (!strcmp(end, "min")) {
+ *time = *time * 60;
+ return true;
+
+ } else if (!strcmp(end, "hr")) {
+ *time = *time * 3600;
+ return true;
+
+ } else {
+ return false;
+ }
+}
+
+//----------------------------------------------------------------------
+bool
+ConnState::parse_options(int argc, const char** argv, const char** invalidp)
+{
+ oasys::OptParser p;
+ std::string latency_str;
+
+ p.addopt(new oasys::RateOpt("bw", &bw_));
+ p.addopt(new oasys::StringOpt("latency", &latency_str));
+
+ if (! p.parse(argc, argv, invalidp)) {
+ return false;
+ }
+
+ if (latency_str != "" && !parse_time(latency_str.c_str(), &latency_)) {
+ *invalidp = strdup(latency_str.c_str()); // leak!
+ return false;
+ }
+
+ return true;
+}
+
+//----------------------------------------------------------------------
+void
+Connectivity::set_state(const char* n1, const char* n2, const ConnState& s)
+{
+ log_debug("set state %s,%s: %s bw=%llu latency=%f",
+ n1, n2, s.open_ ? "up" : "down", U64FMT(s.bw_), s.latency_);
+
+ // handle wildcards
+ if (!strcmp(n1, "*")) {
+ Topology::NodeTable* nodes = Topology::node_table();
+
+ for (Topology::NodeTable::iterator iter = nodes->begin();
+ iter != nodes->end(); ++iter)
+ {
+ if (strcmp(iter->second->name(), n2) != 0) {
+ set_state(iter->second->name(), n2, s);
+ }
+ }
+ return;
+ }
+
+ if (!strcmp(n2, "*")) {
+ Topology::NodeTable* nodes = Topology::node_table();
+
+ for (Topology::NodeTable::iterator iter = nodes->begin();
+ iter != nodes->end(); ++iter)
+ {
+ if (strcmp(n1, iter->second->name()) != 0) {
+ set_state(n1, iter->second->name(), s);
+ }
+ }
+ return;
+ }
+
+ oasys::StringBuffer key("%s,%s", n1, n2);
+ StateTable::iterator iter = state_.find(key.c_str());
+ if (iter != state_.end()) {
+ iter->second = s;
+ } else {
+ state_[key.c_str()] = s;
+ }
+
+ SimConvergenceLayer::instance()->
+ update_connectivity(Topology::find_node(n1),
+ Topology::find_node(n2), s);
+}
+
+//----------------------------------------------------------------------
+const ConnState*
+Connectivity::lookup(Node* n1, Node* n2)
+{
+ oasys::StringBuffer key("%s,%s", n1->name(), n2->name());
+ StateTable::iterator iter = state_.find(key.c_str());
+ if (iter == state_.end()) {
+ return NULL;
+ }
+ return &iter->second;
+}
+
+} // namespace dtnsim