1 files changed, 120 insertions, 0 deletions
diff --git a/src/mem/ruby/eventqueue/RubyEventQueue.cc b/src/mem/ruby/eventqueue/RubyEventQueue.cc
new file mode 100644
index 000000000..4a979942f
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+++ b/src/mem/ruby/eventqueue/RubyEventQueue.cc
@@ -0,0 +1,120 @@
+
+/*
+ * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#include "mem/ruby/eventqueue/RubyEventQueue.hh"
+#include "mem/ruby/config/RubyConfig.hh"
+#include "mem/ruby/common/Consumer.hh"
+#include "mem/ruby/profiler/Profiler.hh"
+#include "mem/ruby/system/System.hh"
+#include "mem/gems_common/PrioHeap.hh"
+#include "mem/ruby/eventqueue/RubyEventQueueNode.hh"
+
+// Class public method definitions
+
+RubyEventQueue::RubyEventQueue()
+{
+  m_prio_heap_ptr = NULL;
+  init();
+}
+
+RubyEventQueue::~RubyEventQueue()
+{
+  // delete m_prio_heap_ptr;
+}
+
+void RubyEventQueue::init()
+{
+  m_globalTime = 1;
+  m_timeOfLastRecovery = 1;
+  m_prio_heap_ptr = new PrioHeap<RubyEventQueueNode>;
+  m_prio_heap_ptr->init();
+}
+
+bool RubyEventQueue::isEmpty() const
+{
+  return (m_prio_heap_ptr->size() == 0);
+}
+
+void RubyEventQueue::scheduleEventAbsolute(Consumer* consumer, Time timeAbs)
+{
+  // Check to see if this is a redundant wakeup
+  //  Time time = timeDelta + m_globalTime;
+  ASSERT(consumer != NULL);
+  if (consumer->getLastScheduledWakeup() != timeAbs) {
+    // This wakeup is not redundant
+    RubyEventQueueNode thisNode;
+    thisNode.m_consumer_ptr = consumer;
+    assert(timeAbs > m_globalTime);
+    thisNode.m_time = timeAbs;
+    m_prio_heap_ptr->insert(thisNode);
+    consumer->setLastScheduledWakeup(timeAbs);
+  }
+}
+
+void RubyEventQueue::triggerEvents(Time t)
+{
+  RubyEventQueueNode thisNode;
+
+  while(m_prio_heap_ptr->size() > 0 && m_prio_heap_ptr->peekMin().m_time <= t) {
+    m_globalTime = m_prio_heap_ptr->peekMin().m_time;
+    thisNode = m_prio_heap_ptr->extractMin();
+    assert(thisNode.m_consumer_ptr != NULL);
+    DEBUG_EXPR(EVENTQUEUE_COMP,MedPrio,*(thisNode.m_consumer_ptr));
+    DEBUG_EXPR(EVENTQUEUE_COMP,MedPrio,thisNode.m_time);
+    thisNode.m_consumer_ptr->triggerWakeup();
+  }
+  m_globalTime = t;
+}
+
+void RubyEventQueue::triggerAllEvents()
+{
+  // FIXME - avoid repeated code
+  RubyEventQueueNode thisNode;
+
+  while(m_prio_heap_ptr->size() > 0) {
+    m_globalTime = m_prio_heap_ptr->peekMin().m_time;
+    thisNode = m_prio_heap_ptr->extractMin();
+    assert(thisNode.m_consumer_ptr != NULL);
+    DEBUG_EXPR(EVENTQUEUE_COMP,MedPrio,*(thisNode.m_consumer_ptr));
+    DEBUG_EXPR(EVENTQUEUE_COMP,MedPrio,thisNode.m_time);
+    thisNode.m_consumer_ptr->triggerWakeup();
+  }
+}
+
+// Class private method definitions
+
+void
+RubyEventQueue::print(ostream& out) const
+{
+  out << "[Event Queue: " << *m_prio_heap_ptr << "]";
+}