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/*
Copyright (c) 2014 DIVIDE-Studio
Copyright (c) 2009 Ionut Cava

This file is part of DIVIDE Framework.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software
and associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

*/

#ifndef _MEMORY_TRACKER_H_
#define _MEMORY_TRACKER_H_

#include "Core/Math/Headers/MathHelper.h"
#include "Platform/Threading/Headers/SharedMutex.h"
#include <atomic>

namespace Divide {
    namespace MemoryManager {
        /// From https://www.relisoft.com/book/tech/9new.html
        class MemoryTracker {
        private:
            class Entry    {
            public:
                Entry( char const * file, I32 line, size_t size ) : _file( file ), _line( line ), _size( size ) {
                }
                Entry() : _file( "" ), _line( 0 ), _size( 0 ) {
                }

                inline char const * File() const { return _file; }
                inline I32 Line()          const { return _line; }
                inline size_t Size()       const { return _size; }

            private:
                char const * _file;
                I32 _line;
                size_t _size;
            };

            class Lock {
            public:
                Lock( MemoryTracker & tracer ) : _tracer( tracer ) {
                    _tracer.lock();
                }
                ~Lock() {
                    _tracer.unlock();
                }
            private:
                MemoryTracker& _tracer;
            };

            typedef hashMapImpl<void *, Entry>::iterator iterator;
            friend class Lock;

        public:
            MemoryTracker() {
                _locked = false;
                Ready = true;
            }

            ~MemoryTracker() {
                Ready = false;
                bool leakDetected = false;
                size_t sizeLeaked = 0;
                Dump( leakDetected, sizeLeaked );
            }

            inline void Add( void * p, size_t size, char const * file, I32 line ) {
                if ( _locked ) {
                    return;
                } 
                WriteLock w_lock(_mutex);
                MemoryTracker::Lock lock( *this );
                hashAlg::insert( _map, hashAlg::makePair(p, Entry( file, line, size )) );
            }

            inline void Remove( void * p ) {
                if ( _locked ) {
                    return;
                }

                WriteLock w_lock(_mutex);
                MemoryTracker::Lock lock( *this );
                iterator it = _map.find( p );
                if ( it != _map.end() ) {
                    _map.erase( it );
                }
            }

            inline stringImpl Dump( bool& leakDetected, size_t& sizeLeaked ) {
                stringImpl output;
                sizeLeaked = 0;
                leakDetected = false;

                MemoryTracker::Lock lock( *this );
                WriteLock w_lock( _mutex );
                if ( !_map.empty() ) {
                    output.append(Util::toString( _map.size() ) + " memory leaks detected\n");
                    for ( iterator it = _map.begin(); it != _map.end(); ++it ) {
                        const Entry& entry = it->second;
                        output.append( entry.File() );
                        output.append( ", " );
                        output.append(Util::toString( entry.Line() ));
                        output.append( "\n" );
                        sizeLeaked += entry.Size();
                    }
                    leakDetected = true;
                    _map.clear();
                }
                return output;
            }

            static bool Ready;

        private:
            inline void lock() { _locked = true; }
            inline void unlock() { _locked = false; }

        private:
            mutable SharedLock _mutex;
            hashMapImpl<void *, Entry> _map;
            std::atomic_bool _locked;
        };

        extern MemoryTracker AllocTracer;
    }; //namespace MemoryManager
}; //namespace Divide
#endif //_MEMORY_TRACKER_H_

Commits for Divide-Framework/trunk/Source Code/Utility/Headers/MemoryTracker.h

Diff revisions: vs.
Revision Author Commited Message
337 Diff Diff IonutCava picture IonutCava Wed 17 Dec, 2014 17:25:16 +0000

[Ionut]
- Replaced all tabs with 4 spaces (some spacing may be off now. no way to check all the files.)
- Moved implementation details for ParamHandler, BoundingBox, BoundingSphere and ProfileTimer to proper .inl and .cpp files. (more to follow)
- Update all forward declared enums with the required storage type (as requested by the C++11 standard)

334 Diff Diff IonutCava picture IonutCava Wed 10 Dec, 2014 17:21:22 +0000

[Ionut]
- Reorganized the Hardware project and renamed to "Platform"
- Reorganized the Server project

333 Diff Diff IonutCava picture IonutCava Tue 09 Dec, 2014 16:15:44 +0000

[Ionut]
- Removed “core.h” and moved everything to their appropriate header files
- Renamed MathClasses to MathMatrices (finally)
- Renamed “-Inl.h” files to ".inl"
- Some String wrapper refactoring
- Update “InstallLibraries.bat” so that it still offers valid options

326 Diff Diff IonutCava picture IonutCava Tue 30 Sep, 2014 21:11:32 +0000

[Ionut]
- Fixed more memory leaks
- Simplified Task interface and timing System
- Improved compatibility between Boost, STL and EASTL with random combinations of vectors, strings and maps
- Simplified Light class by removing the “slot” member
- Random optimizations

325 Diff Diff IonutCava picture IonutCava Wed 17 Sep, 2014 20:06:13 +0000

[Ionut]
- Reworked transform system:
— Parent transform chain system moved from Transform class to the PhysicsComponent
— PhysicsComponent now returns all transform values needed both global and local (still needs heavy optimization and caching)

- Reworked SceneGraph node management:
— Proper ref counting of SceneNodes and proper removing of resource (ResourceCache is now empty on destruction, as it should be)
— Removed parent transform tracking as that’s the PhysicsComponent’s responsibility
— Only nodes loaded via the ResourceCache are allowed to be added to the SceneGraph (added proper loaders for Impostors, Sky, etc)

- Optimized some of the math classes (mat4, mat3)

324 IonutCava picture IonutCava Sun 14 Sep, 2014 14:01:39 +0000

[Ionut]
- New memory management system (no custom allocators in this commit)
— Memory tracer to detect memory leaks on shutdown (from: https://www.relisoft.com/book/tech/9new.html)
— SAFE_DELETE_XYZ are now inline template functions not macros
— ASSERTION system now supports logging and message boxes and continue on error configurable for each build type
— Fixed a lot of memory leaks detected by the new system (some still remain)

- Added SRGB support (part 1)
— Albedo textures are loaded as SRGB (make sure resources are SRGB)
— Shaders output gamma corrected colors
— Moved terrain textures back to 2 array system (albedo and normal maps, albedo maps using a SRGB sampler)

- Sky is now loaded via the ResourceCache system
- Added include safeguards in shader atoms