--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sim/SimCommand.cc	Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,139 @@
+/*
+ *    Copyright 2004-2006 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 <stdlib.h>
+
+#include "routing/BundleRouter.h"
+
+#include "Node.h"
+#include "NodeCommand.h"
+#include "SimCommand.h"
+#include "Simulator.h"
+#include "Topology.h"
+
+using namespace dtn;
+
+namespace dtnsim {
+
+SimCommand::SimCommand()
+    : TclCommand("sim")
+{
+    bind_var(new oasys::DoubleOpt("runtill", &Simulator::runtill_,
+                                  "steps", "Run simulation for this many steps"));
+    bind_var(new oasys::StringOpt("route_type", &BundleRouter::config_.type_,
+                                  "type", "What type of router to use"));
+}
+
+int
+SimCommand::exec(int argc, const char** argv, Tcl_Interp* tclinterp)
+{
+    (void)tclinterp;
+    if (argc < 2) {
+        wrong_num_args(argc, argv, 2, 2, INT_MAX);
+        return TCL_ERROR;
+    }
+
+    const char* cmd = argv[1];
+    if (strcmp(cmd, "create_node") == 0) {
+        // sim create_node <name>
+        if (argc != 3) {
+            wrong_num_args(argc, argv, 2, 3, 3);
+            return TCL_ERROR;
+        }
+
+        const char* name = argv[2];
+
+        // make sure no tcl command already exists with the given name
+        oasys::TclCommandInterp* interp = oasys::TclCommandInterp::instance();
+        if (interp->lookup(name)) {
+            resultf("error creating node %s: tcl command already exists",
+                    name);
+            return TCL_ERROR;
+        }
+        
+        Node* node = Topology::create_node(name);
+
+        NodeCommand* cmd = new NodeCommand(node);
+        interp->reg(cmd);
+        
+        return TCL_OK;
+
+    } else if (strcmp(cmd, "at") == 0) {
+        // sim at [<time>|exit] <cmd...>
+        if (argc < 4) {
+            wrong_num_args(argc, argv, 2, 4, INT_MAX);
+            return TCL_ERROR;
+        }
+
+        char* end;
+        double time;
+        if (!strcmp(argv[2], "exit")) {
+            time = -1;
+        } else {
+            time = strtod(argv[2], &end);
+            if (*end != '\0') {
+                resultf("time value '%s' invalid", argv[1]);
+                return TCL_ERROR;
+            }
+        }
+        
+        SimAtEvent* e = new SimAtEvent(time, Simulator::instance());
+        e->objc_ = argc - 3;
+        for (int i = 0; i < e->objc_; ++i) {
+            e->objv_[i] = Tcl_NewStringObj(argv[i+3], -1);
+	    Tcl_IncrRefCount(e->objv_[i]);
+        }
+
+        if (time == -1) {
+            Simulator::instance()->set_exit_event(e);
+        } else {
+            Simulator::post(e);
+        }
+        return TCL_OK;
+        
+    } else if (strcmp(cmd, "run") == 0) {
+        Simulator::instance()->run();
+        return TCL_OK;
+
+    } else if (strcmp(cmd, "run_events") == 0) {
+        Simulator::instance()->run_node_events();
+        return TCL_OK;
+
+    } else if (strcmp(cmd, "pause") == 0) {
+        Simulator::instance()->pause();
+        return TCL_OK;
+    } else if (strcmp(cmd, "nodes") == 0) {
+        oasys::StringBuffer buf;
+        Topology::NodeTable* nodes = Topology::node_table();
+        for (Topology::NodeTable::iterator i = nodes->begin();
+             i != nodes->end(); ++i)
+        {
+            buf.appendf("%s ", i->second->name());
+        }
+        set_result(buf.c_str());
+        return TCL_OK;
+    }        
+
+    resultf("sim: unsupported subcommand %s", cmd);
+    return TCL_ERROR;
+}
+
+
+} // namespace dtnsim