l4re-base-25.08.0

src/l4/pkg/examples/clntsrv/Control

@@ -0,0 +1,2 @@
+requires: stdlibs
+Maintainer: adam@os.inf.tu-dresden.de

src/l4/pkg/examples/clntsrv/Makefile

@@ -0,0 +1,7 @@
+PKGDIR          ?= .
+L4DIR           ?= $(PKGDIR)/../../..
+
+TARGET = src configs
+
+include $(L4DIR)/mk/subdir.mk
+

src/l4/pkg/examples/clntsrv/configs/Makefile

@@ -0,0 +1,9 @@
+PKGDIR          ?= ../..
+L4DIR           ?= $(PKGDIR)/../..
+
+PKGNAME = ex_clntsrv
+SRC_ASSETS_NED = clntsrv.cfg
+SRC_ASSETS_MODLIST = modules.list
+
+include $(L4DIR)/mk/assets.mk
+

src/l4/pkg/examples/clntsrv/configs/clntsrv.cfg

@@ -0,0 +1,21 @@
+-- vim:set ft=lua:
+
+-- Include L4 functionality
+local L4 = require("L4");
+
+-- Some shortcut for less typing
+local ld = L4.default_loader;
+
+-- Channel for the two programs to talk to each other.
+local calc_server = ld:new_channel();
+
+-- The server program, getting the channel in server mode.
+ld:start({ caps = { calc_server = calc_server:svr() },
+           log = { "server", "blue" } },
+         "rom/ex_clntsrv-server");
+
+-- The client program, getting the 'calc_server' channel to be able to talk
+-- to the server. The client will be started with a green log output.
+ld:start({ caps = { calc_server = calc_server },
+           log = { "client", "green" } },
+         "rom/ex_clntsrv-client");

src/l4/pkg/examples/clntsrv/configs/modules.list

@@ -0,0 +1,8 @@
+entry ex_clntsrv
+roottask moe rom/clntsrv.cfg
+module l4re
+module ned
+module ex_clntsrv-server
+module ex_clntsrv-client
+module ned/ex_clntsrv/clntsrv.cfg
+

src/l4/pkg/examples/clntsrv/src/Makefile

@@ -0,0 +1,9 @@
+PKGDIR          ?= ..
+L4DIR           ?= $(PKGDIR)/../../..
+
+TARGET                   = ex_clntsrv-server ex_clntsrv-client
+SRC_CC_ex_clntsrv-server = server.cc
+SRC_CC_ex_clntsrv-client = client.cc
+
+include $(L4DIR)/mk/prog.mk
+

src/l4/pkg/examples/clntsrv/src/client.cc

@@ -0,0 +1,48 @@
+/*
+ * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
+ *               Alexander Warg <warg@os.inf.tu-dresden.de>
+ *     economic rights: Technische Universität Dresden (Germany)
+ *
+ * This file is part of TUD:OS and distributed under the terms of the
+ * GNU General Public License 2.
+ * Please see the COPYING-GPL-2 file for details.
+ */
+#include <l4/sys/err.h>
+#include <l4/sys/types.h>
+#include <l4/re/env>
+#include <l4/re/util/cap_alloc>
+
+#include <stdio.h>
+#include "shared.h"
+
+int
+main()
+{
+  L4::Cap<Calc> server = L4Re::Env::env()->get_cap<Calc>("calc_server");
+  if (!server.is_valid())
+    {
+      printf("Could not get server capability!\n");
+      return 1;
+    }
+
+  l4_uint32_t val1 = 8;
+  l4_uint32_t val2 = 5;
+
+  printf("Asking for %d - %d\n", val1, val2);
+  if (server->sub(val1, val2, &val1))
+    {
+      printf("Error talking to server\n");
+      return 1;
+    }
+  printf("Result of subtract call: %d\n", val1);
+
+  printf("Asking for -%d\n", val1);
+  if (server->neg(val1, &val1))
+    {
+      printf("Error talking to server\n");
+      return 1;
+    }
+  printf("Result of negate call: %d\n", val1);
+
+  return 0;
+}

src/l4/pkg/examples/clntsrv/src/server.cc

@@ -0,0 +1,57 @@
+/*
+ * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
+ *               Alexander Warg <warg@os.inf.tu-dresden.de>
+ *     economic rights: Technische Universität Dresden (Germany)
+ *
+ * This file is part of TUD:OS and distributed under the terms of the
+ * GNU General Public License 2.
+ * Please see the COPYING-GPL-2 file for details.
+ */
+#include <stdio.h>
+#include <l4/re/env>
+#include <l4/re/util/cap_alloc>
+#include <l4/re/util/object_registry>
+#include <l4/re/util/br_manager>
+#include <l4/sys/cxx/ipc_epiface>
+
+#include "shared.h"
+
+static L4Re::Util::Registry_server<> server;
+
+class Calculation_server : public L4::Epiface_t<Calculation_server, Calc>
+{
+public:
+  int op_sub(Calc::Rights, l4_uint32_t a, l4_uint32_t b, l4_uint32_t &res)
+  {
+    res = a - b;
+    return 0;
+  }
+
+  int op_neg(Calc::Rights, l4_uint32_t a, l4_uint32_t &res)
+  {
+    res = -a;
+    return 0;
+  }
+};
+
+
+int
+main()
+{
+  static Calculation_server calc;
+
+  // Register calculation server
+  if (!server.registry()->register_obj(&calc, "calc_server").is_valid())
+    {
+      printf("Could not register my service, is there a 'calc_server' in the caps table?\n");
+      return 1;
+    }
+
+  printf("Welcome to the calculation server!\n"
+         "I can do subtractions and negations.\n");
+
+  // Wait for client requests
+  server.loop();
+
+  return 0;
+}

src/l4/pkg/examples/clntsrv/src/shared.h

@@ -0,0 +1,20 @@
+/*
+ * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>
+ *     economic rights: Technische Universität Dresden (Germany)
+ *
+ * This file is part of TUD:OS and distributed under the terms of the
+ * GNU General Public License 2.
+ * Please see the COPYING-GPL-2 file for details.
+ */
+
+#pragma once
+
+#include <l4/sys/capability>
+#include <l4/sys/cxx/ipc_iface>
+
+struct Calc : L4::Kobject_t<Calc, L4::Kobject, 0x44>
+{
+  L4_INLINE_RPC(int, sub, (l4_uint32_t a, l4_uint32_t b, l4_uint32_t *res));
+  L4_INLINE_RPC(int, neg, (l4_uint32_t a, l4_uint32_t *res));
+  typedef L4::Typeid::Rpcs<sub_t, neg_t> Rpcs;
+};