From 0074691a67f857c9b3f880fb581e0af1d5673337 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Thu, 31 Jul 1997 22:13:29 +0000
Subject: Merged very large and much appreciated patch from Chris Johns
 <cjohns@plessey.com.au>.  This patch includes the ods68302 bsp, the RTEMS++
 class library, and the rtems++ test.

---
 c/src/lib/librtems++/rtemsSemaphore.cc | 174 +++++++++++++++++++++++++++++++++
 1 file changed, 174 insertions(+)
 create mode 100644 c/src/lib/librtems++/rtemsSemaphore.cc

(limited to 'c/src/lib/librtems++/rtemsSemaphore.cc')

diff --git a/c/src/lib/librtems++/rtemsSemaphore.cc b/c/src/lib/librtems++/rtemsSemaphore.cc
new file mode 100644
index 0000000000..1e0d3de472
--- /dev/null
+++ b/c/src/lib/librtems++/rtemsSemaphore.cc
@@ -0,0 +1,174 @@
+/*
+  ------------------------------------------------------------------------
+  $Id$
+  ------------------------------------------------------------------------
+
+  COPYRIGHT (c) 1997
+  Objective Design Systems Ltd Pty (ODS)
+  All rights reserved (R) Objective Design Systems Ltd Pty
+  
+  The license and distribution terms for this file may be found in the
+  file LICENSE in this distribution or at
+  http://www.OARcorp.com/rtems/license.html.
+
+  ------------------------------------------------------------------------
+
+  See header file.
+
+  ------------------------------------------------------------------------
+*/
+
+#include <rtems++/rtemsSemaphore.h>
+
+/* ----
+    rtemsSemaphore
+*/
+
+rtemsSemaphore::rtemsSemaphore(const char* sname,
+                               const Scope scope,
+                               const rtems_unsigned32 counter,
+                               const WaitMode wait_mode,
+                               const Type type,
+                               const Priority priority,
+                               const Ceiling ceiling,
+                               const rtems_task_priority priority_ceiling)
+  : name(0),
+    owner(true),
+    id(0)
+{
+  strcpy(name_str, "NOID");
+  create(sname,
+         scope,
+         counter,
+         wait_mode,
+         type,
+         priority,
+         ceiling,
+         priority_ceiling);  
+}
+
+rtemsSemaphore::rtemsSemaphore(const char *sname, const rtems_unsigned32 node)
+  : name(0),
+    owner(false),
+    id(0)
+{
+  strcpy(name_str, "NOID");
+  connect(sname, node);
+}
+
+rtemsSemaphore::rtemsSemaphore(const rtemsSemaphore& semaphore)
+  : name(0),
+    owner(false),
+    id(0)
+{
+  name = semaphore.name;
+  strcpy(name_str, semaphore.name_str);
+  id = semaphore.id;
+}
+
+rtemsSemaphore::rtemsSemaphore()
+  : name(0),
+    owner(false),
+    id(0)
+{
+  strcpy(name_str, "NOID");
+}
+
+rtemsSemaphore::~rtemsSemaphore()
+{
+  destroy();
+}
+
+void rtemsSemaphore::make_invalid()
+{
+  strcpy(name_str, "NOID");
+  name = 0;
+  id = 0;
+  owner = false;
+}
+
+const rtems_status_code rtemsSemaphore::create(const char* sname,
+                                               const Scope scope,
+                                               const rtems_unsigned32 counter,
+                                               const WaitMode wait_mode,
+                                               const Type type,
+                                               const Priority priority,
+                                               const Ceiling ceiling,
+                                               const rtems_task_priority priority_ceiling)
+{
+  if (id)
+    return set_status_code(RTEMS_ILLEGAL_ON_SELF);
+
+  owner = true;
+  
+  strcpy(name_str, "    ");
+  for (int c = 0; (c < 4) && (sname[c] != '\0'); c++)
+    name_str[c] = sname[c];
+  name = rtems_build_name(name_str[0],
+                          name_str[1],
+                          name_str[2],
+                          name_str[3]);
+  
+  set_status_code(rtems_semaphore_create(name,
+                                         counter,
+                                         scope | wait_mode | type | priority | ceiling,
+                                         priority_ceiling,
+                                         &id));
+
+  if (unsuccessful())
+  {
+    make_invalid();
+  }
+  
+  return last_status_code();
+}
+
+const rtems_status_code rtemsSemaphore::destroy()
+{
+  if (id && owner)
+  {
+    set_status_code(rtems_semaphore_delete(id));
+    make_invalid();
+  }
+  else
+    set_status_code(RTEMS_NOT_OWNER_OF_RESOURCE);
+  
+  return last_status_code();
+}
+
+const rtemsSemaphore& rtemsSemaphore::operator=(const rtemsSemaphore& semaphore)
+{
+  if (!owner)
+  {
+    name = semaphore.name;
+    id = semaphore.id;
+  }
+  return *this;
+}
+
+const rtems_status_code rtemsSemaphore::connect(const char *sname,
+                                                const rtems_unsigned32 node)
+{
+  if (id && owner)
+    return set_status_code(RTEMS_UNSATISFIED);
+
+  // change state to not owner
+  owner = false;
+  
+  strcpy(name_str, "    ");
+  for (int c = 0; (c < 4) && (sname[c] != '\0'); c++)
+    name_str[c] = sname[c];
+  name = rtems_build_name(name_str[0],
+                          name_str[1],
+                          name_str[2],
+                          name_str[3]);
+  
+  set_status_code(rtems_semaphore_ident(name, node, &id));
+
+  if (unsuccessful())
+  {
+    make_invalid();
+  }
+  
+  return last_status_code();
+}
-- 
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