142 lines
5.0 KiB
C++
142 lines
5.0 KiB
C++
/********************************************************************************
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* ReactPhysics3D physics library, http://code.google.com/p/reactphysics3d/ *
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* Copyright (c) 2010-2013 Daniel Chappuis *
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*********************************************************************************
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* *
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* This software is provided 'as-is', without any express or implied warranty. *
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* In no event will the authors be held liable for any damages arising from the *
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* use of this software. *
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* *
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* Permission is granted to anyone to use this software for any purpose, *
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* including commercial applications, and to alter it and redistribute it *
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* freely, subject to the following restrictions: *
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* *
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* 1. The origin of this software must not be misrepresented; you must not claim *
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* that you wrote the original software. If you use this software in a *
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* product, an acknowledgment in the product documentation would be *
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* appreciated but is not required. *
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* *
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* 2. Altered source versions must be plainly marked as such, and must not be *
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* misrepresented as being the original software. *
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* *
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* 3. This notice may not be removed or altered from any source distribution. *
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* *
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********************************************************************************/
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#ifdef IS_PROFILING_ACTIVE
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// Libraries
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#include "Profiler.h"
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using namespace reactphysics3d;
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// Initialization of static variables
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ProfileNode Profiler::mRootNode("Root", NULL);
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ProfileNode* Profiler::mCurrentNode = &Profiler::mRootNode;
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uint Profiler::mFrameCounter = 0;
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// Constructor
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ProfileNode::ProfileNode(const char* name, ProfileNode* parentNode)
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:mName(name), mNbTotalCalls(0), mStartingTime(0), mTotalTime(0),
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mRecursionCounter(0), mParentNode(parentNode), mChildNode(NULL),
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mSiblingNode(NULL) {
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}
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// Destructor
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ProfileNode::~ProfileNode() {
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delete mChildNode;
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delete mSiblingNode;
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}
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// Return a pointer to a sub node with a given name
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ProfileNode* ProfileNode::findSubNode(const char* name) {
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// Try to find the node among the child nodes
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ProfileNode* child = mChildNode;
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while (child != NULL) {
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if (child->mName == name) {
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return child;
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}
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child = child->mSiblingNode;
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}
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// The nose has not been found. Therefore, we create it
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// and add it to the profiler tree
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ProfileNode* newNode = new ProfileNode(name, this);
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newNode->mSiblingNode = child;
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child = newNode;
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return newNode;
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}
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// Called when we enter the block of code corresponding to this profile node
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void ProfileNode::enterBlockOfCode() {
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mNbTotalCalls++;
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// If the current code is not called recursively
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if (mRecursionCounter == 0) {
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// Get the current system time to initialize the starting time of
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// the profiling of the current block of code
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mStartingTime = Timer::getCurrentSystemTime();
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}
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mRecursionCounter++;
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}
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// Called when we exit the block of code corresponding to this profile node
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bool ProfileNode::exitBlockOfCode() {
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mRecursionCounter--;
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if (mRecursionCounter == 0 && mNbTotalCalls != 0) {
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// Get the current system time
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long double currentTime = Timer::getCurrentSystemTime();
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// Increase the total elasped time in the current block of code
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mTotalTime += currentTime - mStartingTime;
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}
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// Return true if the current code is not recursing
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return (mRecursionCounter == 0);
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}
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// Method called when we want to start profiling a block of code.
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void Profiler::startProfilingBlock(const char* name) {
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// Look for the node in the tree that corresponds to the block of
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// code to profile
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if (name != mCurrentNode->getName()) {
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mCurrentNode = mCurrentNode->findSubNode(name);
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}
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// Start profile the node
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mCurrentNode->enterBlockOfCode();
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}
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// Method called at the end of the scope where the
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// startProfilingBlock() method has been called.
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void Profiler::stopProfilingBlock() {
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// Go to the parent node unless if the current block
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// of code is recursing
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if (mCurrentNode->exitBlockOfCode()) {
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mCurrentNode = mCurrentNode->getParentNode();
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}
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}
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// Return an iterator over the profiler tree starting at the root
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ProfileNodeIterator* Profiler::getIterator() {
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return new ProfileNodeIterator(&mRootNode);
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}
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// Print the report of the profiler in a given output stream
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void printReport(std::ostream& outputStream) {
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}
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#endif
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