-/*
- * Copyright (C) 2008 Apple Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. 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.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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.
- */
-
-#include "config.h"
-#include "HeavyProfile.h"
-
-#include "TreeProfile.h"
-
-namespace JSC {
-
-HeavyProfile::HeavyProfile(TreeProfile* treeProfile)
- : Profile(treeProfile->title(), treeProfile->uid())
-{
- m_treeProfile = treeProfile;
- head()->setTotalTime(m_treeProfile->head()->actualTotalTime());
- head()->setSelfTime(m_treeProfile->head()->actualSelfTime());
- generateHeavyStructure();
-}
-
-void HeavyProfile::generateHeavyStructure()
-{
- ProfileNode* treeHead = m_treeProfile->head();
- ProfileNode* currentNode = treeHead->firstChild();
- for (ProfileNode* nextNode = currentNode; nextNode; nextNode = nextNode->firstChild())
- currentNode = nextNode;
-
- // For each node
- HashMap<CallIdentifier, ProfileNode*> foundChildren;
- while (currentNode && currentNode != treeHead) {
- ProfileNode* child = foundChildren.get(currentNode->callIdentifier());
- if (child) // currentNode is in the set already
- mergeProfiles(child, currentNode);
- else { // currentNode is not in the set
- child = addNode(currentNode);
- foundChildren.set(currentNode->callIdentifier(), child);
- }
-
- currentNode = currentNode->traverseNextNodePostOrder();
- }
-}
-
-ProfileNode* HeavyProfile::addNode(ProfileNode* currentNode)
-{
- RefPtr<ProfileNode> node = ProfileNode::create(head(), currentNode);
- head()->addChild(node);
-
- addAncestorsAsChildren(currentNode->parent(), node.get());
- return node.get();
-}
-
-void HeavyProfile::mergeProfiles(ProfileNode* heavyProfileHead, ProfileNode* treeProfileHead)
-{
- ASSERT_ARG(heavyProfileHead, heavyProfileHead);
- ASSERT_ARG(treeProfileHead, treeProfileHead);
-
- ProfileNode* currentTreeNode = treeProfileHead;
- ProfileNode* currentHeavyNode = heavyProfileHead;
- ProfileNode* previousHeavyNode = 0;
-
- while (currentHeavyNode) {
- previousHeavyNode = currentHeavyNode;
-
- currentHeavyNode->setTotalTime(currentHeavyNode->actualTotalTime() + currentTreeNode->actualTotalTime());
- currentHeavyNode->setSelfTime(currentHeavyNode->actualSelfTime() + currentTreeNode->actualSelfTime());
- currentHeavyNode->setNumberOfCalls(currentHeavyNode->numberOfCalls() + currentTreeNode->numberOfCalls());
-
- currentTreeNode = currentTreeNode->parent();
- currentHeavyNode = currentHeavyNode->findChild(currentTreeNode);
- }
-
- // If currentTreeNode is null then we already have the whole tree we wanted to copy.
- // If not we need to copy the subset of the tree that remains different between the two.
- if (currentTreeNode)
- addAncestorsAsChildren(currentTreeNode, previousHeavyNode);
-}
-
-void HeavyProfile::addAncestorsAsChildren(ProfileNode* getFrom, ProfileNode* addTo)
-{
- ASSERT_ARG(getFrom, getFrom);
- ASSERT_ARG(addTo, addTo);
-
- if (!getFrom->head())
- return;
-
- RefPtr<ProfileNode> currentNode = addTo;
- for (ProfileNode* treeAncestor = getFrom; treeAncestor && treeAncestor != getFrom->head(); treeAncestor = treeAncestor->parent()) {
- RefPtr<ProfileNode> newChild = ProfileNode::create(currentNode->head(), treeAncestor);
- currentNode->addChild(newChild);
- currentNode = newChild.release();
- }
-}
-
-} // namespace JSC