1 files changed, 465 insertions, 0 deletions
diff --git a/src/dumm/irdumm.c b/src/dumm/irdumm.c
new file mode 100644
index 000000000..598908327
--- /dev/null
+++ b/src/dumm/irdumm.c
@@ -0,0 +1,465 @@
+/*
+ * Copyright (C) 2008 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <library.h>
+#include <dumm.h>
+
+#undef PACKAGE_NAME
+#undef PACKAGE_TARNAME
+#undef PACKAGE_VERSION
+#undef PACKAGE_STRING
+#include <ruby.h>
+
+dumm_t *dumm;
+
+VALUE rbm_dumm;
+VALUE rbc_guest;
+VALUE rbc_bridge;
+VALUE rbc_iface;
+
+/**
+ * Guest invocation callback
+ */
+static pid_t invoke(void *null, guest_t *guest, char *args[], int argc)
+{
+	pid_t pid;
+	
+	args[argc] = "con0=xterm";
+	
+	pid = fork();
+	switch (pid)
+	{
+		case 0: /* child */
+			dup2(open("/dev/null", 0), 1);
+			dup2(open("/dev/null", 0), 2);
+			execvp(args[0], args);
+			/* FALL */
+		case -1:
+			rb_raise(rb_eException, "starting guest failed");
+			return 0;
+		default:
+			return pid;
+	}
+}
+
+/**
+ * SIGCHLD signal handler
+ */
+static void sigchld_handler(int signal, siginfo_t *info, void* ptr)
+{
+	enumerator_t *enumerator;
+	guest_t *guest;
+	
+	enumerator = dumm->create_guest_enumerator(dumm);
+	while (enumerator->enumerate(enumerator, &guest))
+	{
+		if (guest->get_pid(guest) == info->si_pid)
+		{
+			guest->sigchild(guest);
+			break;
+		}
+	}
+	enumerator->destroy(enumerator);
+}
+
+/**
+ * Guest bindings
+ */
+static VALUE guest_get(VALUE class, VALUE key)
+{
+	enumerator_t *enumerator;
+	guest_t *guest, *found = NULL;
+	
+	enumerator = dumm->create_guest_enumerator(dumm);
+	while (enumerator->enumerate(enumerator, &guest))
+	{
+		if (streq(guest->get_name(guest), StringValuePtr(key)))
+		{
+			found = guest;
+			break;
+		}
+	}
+	enumerator->destroy(enumerator);
+	if (!found)
+	{
+		return Qnil;
+	}
+	return Data_Wrap_Struct(class, NULL, NULL, found);
+}
+
+static VALUE guest_each(int argc, VALUE *argv, VALUE class)
+{
+	enumerator_t *enumerator;
+	guest_t *guest;
+
+	if (!rb_block_given_p())
+    {
+		rb_raise(rb_eArgError, "must be called with a block");
+	}
+	enumerator = dumm->create_guest_enumerator(dumm);
+	while (enumerator->enumerate(enumerator, &guest))
+	{
+  		rb_yield(Data_Wrap_Struct(class, NULL, NULL, guest));
+	}
+	enumerator->destroy(enumerator);
+	return Qnil;
+}
+
+static VALUE guest_new(VALUE class, VALUE name, VALUE kernel,
+					   VALUE master, VALUE mem)
+
+{
+	guest_t *guest;
+	
+	guest = dumm->create_guest(dumm, StringValuePtr(name), StringValuePtr(kernel),
+							   StringValuePtr(master), FIX2INT(mem));
+	if (!guest)
+	{
+		return Qnil;
+	}
+	return Data_Wrap_Struct(class, NULL, NULL, guest);
+}
+
+static VALUE guest_to_s(VALUE self)
+{
+	guest_t *guest;
+	
+	Data_Get_Struct(self, guest_t, guest);
+	return rb_str_new2(guest->get_name(guest));
+}
+
+static VALUE guest_start(VALUE self)
+{
+	guest_t *guest;
+	
+	Data_Get_Struct(self, guest_t, guest);
+	
+	if (guest->start(guest, invoke, NULL, NULL))
+	{
+		return Qtrue;
+	}
+	return Qfalse;
+}
+
+static VALUE guest_stop(VALUE self)
+{
+	guest_t *guest;
+	
+	Data_Get_Struct(self, guest_t, guest);
+	
+	if (guest->stop(guest, NULL))
+	{
+		return Qtrue;
+	}
+	return Qfalse;
+}
+
+static VALUE guest_add_iface(VALUE self, VALUE name)
+{
+	guest_t *guest;
+	iface_t *iface;
+	
+	Data_Get_Struct(self, guest_t, guest);
+	iface = guest->create_iface(guest, StringValuePtr(name));
+	if (iface)
+	{
+		return Data_Wrap_Struct(rbc_iface, NULL, NULL, iface);
+	}
+	return Qnil;
+}
+
+static VALUE guest_get_iface(VALUE self, VALUE key)
+{
+	enumerator_t *enumerator;
+	iface_t *iface, *found = NULL;
+	guest_t *guest;
+	
+	Data_Get_Struct(self, guest_t, guest);
+	enumerator = guest->create_iface_enumerator(guest);
+	while (enumerator->enumerate(enumerator, &iface))
+	{
+		if (streq(iface->get_guestif(iface), StringValuePtr(key)))
+		{
+			found = iface;
+			break;
+		}
+	}
+	enumerator->destroy(enumerator);
+	if (!found)
+	{
+		return Qnil;
+	}
+	return Data_Wrap_Struct(rbc_iface, NULL, NULL, iface);
+}
+
+static VALUE guest_each_iface(int argc, VALUE *argv, VALUE self)
+{
+	enumerator_t *enumerator;
+	guest_t *guest;
+	iface_t *iface;
+
+	if (!rb_block_given_p())
+    {
+		rb_raise(rb_eArgError, "must be called with a block");
+	}
+	Data_Get_Struct(self, guest_t, guest);
+	enumerator = guest->create_iface_enumerator(guest);
+	while (enumerator->enumerate(enumerator, &iface))
+	{
+  		rb_yield(Data_Wrap_Struct(rbc_iface, NULL, NULL, iface));
+	}
+	enumerator->destroy(enumerator);
+	return Qnil;
+}
+
+static VALUE guest_delete(VALUE self)
+{
+	guest_t *guest;
+	
+	Data_Get_Struct(self, guest_t, guest);
+	dumm->delete_guest(dumm, guest);
+	return Qnil;
+}
+
+static void guest_init()
+{
+	rbc_guest = rb_define_class_under(rbm_dumm , "Guest", rb_cObject);
+	rb_define_singleton_method(rbc_guest, "[]", guest_get, 1);
+	rb_define_singleton_method(rbc_guest, "each", guest_each, -1);
+	rb_define_singleton_method(rbc_guest, "new", guest_new, 4);
+	rb_define_method(rbc_guest, "to_s", guest_to_s, 0);
+	rb_define_method(rbc_guest, "start", guest_start, 0);
+	rb_define_method(rbc_guest, "stop", guest_stop, 0);
+	rb_define_method(rbc_guest, "add", guest_add_iface, 1);
+	rb_define_method(rbc_guest, "[]", guest_get_iface, 1);
+	rb_define_method(rbc_guest, "each", guest_each_iface, -1);
+	rb_define_method(rbc_guest, "delete", guest_delete, 0);
+}
+
+/**
+ * Bridge binding
+ */
+static VALUE bridge_get(VALUE class, VALUE key)
+{
+	enumerator_t *enumerator;
+	bridge_t *bridge, *found = NULL;
+	
+	enumerator = dumm->create_bridge_enumerator(dumm);
+	while (enumerator->enumerate(enumerator, &bridge))
+	{
+		if (streq(bridge->get_name(bridge), StringValuePtr(key)))
+		{
+			found = bridge;
+			break;
+		}
+	}
+	enumerator->destroy(enumerator);
+	if (!found)
+	{
+		return Qnil;
+	}
+	return Data_Wrap_Struct(class, NULL, NULL, found);
+}
+
+static VALUE bridge_each(int argc, VALUE *argv, VALUE class)
+{
+	enumerator_t *enumerator;
+	bridge_t *bridge;
+
+	if (!rb_block_given_p())
+    {
+		rb_raise(rb_eArgError, "must be called with a block");
+	}
+	enumerator = dumm->create_bridge_enumerator(dumm);
+	while (enumerator->enumerate(enumerator, &bridge))
+	{
+  		rb_yield(Data_Wrap_Struct(class, NULL, NULL, bridge));
+	}
+	enumerator->destroy(enumerator);
+	return Qnil;
+}
+
+static VALUE bridge_new(VALUE class, VALUE name)
+
+{
+	bridge_t *bridge;
+	
+	bridge = dumm->create_bridge(dumm, StringValuePtr(name));
+	if (!bridge)
+	{
+		return Qnil;
+	}
+	return Data_Wrap_Struct(class, NULL, NULL, bridge);
+}
+
+static VALUE bridge_to_s(VALUE self)
+{
+	bridge_t *bridge;
+	
+	Data_Get_Struct(self, bridge_t, bridge);
+	return rb_str_new2(bridge->get_name(bridge));
+}
+
+static VALUE bridge_each_iface(int argc, VALUE *argv, VALUE self)
+{
+	enumerator_t *enumerator;
+	bridge_t *bridge;
+	iface_t *iface;
+
+	if (!rb_block_given_p())
+    {
+		rb_raise(rb_eArgError, "must be called with a block");
+	}
+	Data_Get_Struct(self, bridge_t, bridge);
+	enumerator = bridge->create_iface_enumerator(bridge);
+	while (enumerator->enumerate(enumerator, &iface))
+	{
+  		rb_yield(Data_Wrap_Struct(rbc_iface, NULL, NULL, iface));
+	}
+	enumerator->destroy(enumerator);
+	return Qnil;
+}
+
+static VALUE bridge_delete(VALUE self)
+{
+	bridge_t *bridge;
+	
+	Data_Get_Struct(self, bridge_t, bridge);
+	dumm->delete_bridge(dumm, bridge);
+	return Qnil;
+}
+
+static void bridge_init()
+{
+	rbc_bridge = rb_define_class_under(rbm_dumm , "Bridge", rb_cObject);
+	rb_define_singleton_method(rbc_bridge, "[]", bridge_get, 1);
+	rb_define_singleton_method(rbc_bridge, "each", bridge_each, -1);
+	rb_define_singleton_method(rbc_bridge, "new", bridge_new, 1);
+	rb_define_method(rbc_bridge, "to_s", bridge_to_s, 0);
+	rb_define_method(rbc_bridge, "each", bridge_each_iface, -1);
+	rb_define_method(rbc_bridge, "delete", bridge_delete, 0);
+}
+
+/**
+ * Iface wrapper
+ */
+static VALUE iface_to_s(VALUE self)
+{
+	iface_t *iface;
+	
+	Data_Get_Struct(self, iface_t, iface);
+	return rb_str_new2(iface->get_hostif(iface));
+}
+
+static VALUE iface_connect(VALUE self, VALUE vbridge)
+{
+	iface_t *iface;
+	bridge_t *bridge;
+	
+	Data_Get_Struct(self, iface_t, iface);
+	Data_Get_Struct(vbridge, bridge_t, bridge);
+	if (bridge->connect_iface(bridge, iface))
+	{
+		return self;
+	}
+	return Qnil;
+}
+
+static VALUE iface_disconnect(VALUE self)
+{
+	iface_t *iface;
+	bridge_t *bridge;
+	
+	Data_Get_Struct(self, iface_t, iface);
+	bridge = iface->get_bridge(iface);
+	if (bridge && bridge->disconnect_iface(bridge, iface))
+	{
+		return self;
+	}
+	return Qnil;
+}
+
+static VALUE iface_delete(VALUE self)
+{
+	guest_t *guest;
+	iface_t *iface;
+	
+	Data_Get_Struct(self, iface_t, iface);
+	guest = iface->get_guest(iface);
+	guest->destroy_iface(guest, iface);
+	return Qnil;
+}
+
+static void iface_init()
+{
+	rbc_iface = rb_define_class_under(rbm_dumm , "Iface", rb_cObject);
+	rb_define_method(rbc_iface, "to_s", iface_to_s, 0);
+	rb_define_method(rbc_iface, "connect", iface_connect, 1);
+	rb_define_method(rbc_iface, "disconnect", iface_disconnect, 0);
+	rb_define_method(rbc_iface, "delete", iface_delete, 0);
+}
+
+/**
+ * main routine, parses args and reads from console
+ */
+int main(int argc, char *argv[])
+{	
+	int state;
+	struct sigaction action;
+	
+	ruby_init();
+	ruby_init_loadpath();
+	
+	/* there are to many to report, rubyruby... */
+	setenv("LEAK_DETECTIVE_DISABLE", "1", 1);
+	
+	library_init(NULL);
+	
+	dumm = dumm_create(NULL);
+	
+	rbm_dumm = rb_define_module("Dumm");
+	
+	guest_init();
+	bridge_init();
+	iface_init();
+	
+	sigemptyset(&action.sa_mask);
+	action.sa_sigaction = sigchld_handler;
+	action.sa_flags = SA_SIGINFO;
+	sigaction(SIGCHLD, &action, NULL);
+
+	rb_require("irb");
+	rb_eval_string_protect("include Dumm", &state);
+	rb_eval_string_protect("IRB.start", &state);
+	if (state)
+	{
+		rb_p(ruby_errinfo);
+	}
+	
+	dumm->destroy(dumm);
+	
+	action.sa_handler = SIG_DFL;
+	action.sa_flags = 0;
+	sigaction(SIGCHLD, &action, NULL);
+	
+	library_deinit();
+	return 0;
+}
+