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[8735] New memory allocator for MaNGOS, based on Intel Threading Building Blocks library. Performance gains depend greatly on OS you use!
You should add two libraries into your server binaries: tbb.so/tbbmalloc.so on *nix and tbb(_debug).dll/tbbmalloc(_debug).dll on Windows!!! Define USE_STANDARD_MALLOC while compiling 'framework' project to use OS' default memory allocator! Signed-off-by: Ambal <pogrebniak@gala.net>
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Ambal
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235 changed files with 52785 additions and 432 deletions
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dep/tbb/include/tbb/tbb_allocator.h
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dep/tbb/include/tbb/tbb_allocator.h
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/*
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Copyright 2005-2009 Intel Corporation. All Rights Reserved.
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This file is part of Threading Building Blocks.
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Threading Building Blocks is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License
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version 2 as published by the Free Software Foundation.
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Threading Building Blocks is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Threading Building Blocks; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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As a special exception, you may use this file as part of a free software
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library without restriction. Specifically, if other files instantiate
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templates or use macros or inline functions from this file, or you compile
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this file and link it with other files to produce an executable, this
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file does not by itself cause the resulting executable to be covered by
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the GNU General Public License. This exception does not however
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invalidate any other reasons why the executable file might be covered by
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the GNU General Public License.
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*/
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#ifndef __TBB_tbb_allocator_H
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#define __TBB_tbb_allocator_H
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#include <new>
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#include <cstring>
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#include "tbb_stddef.h"
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namespace tbb {
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//! @cond INTERNAL
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namespace internal {
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//! Deallocates memory using FreeHandler
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/** The function uses scalable_free if scalable allocator is available and free if not*/
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void __TBB_EXPORTED_FUNC deallocate_via_handler_v3( void *p );
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//! Allocates memory using MallocHandler
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/** The function uses scalable_malloc if scalable allocator is available and malloc if not*/
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void* __TBB_EXPORTED_FUNC allocate_via_handler_v3( size_t n );
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//! Returns true if standard malloc/free are used to work with memory.
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bool __TBB_EXPORTED_FUNC is_malloc_used_v3();
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}
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//! @endcond
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#if _MSC_VER && !defined(__INTEL_COMPILER)
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// Workaround for erroneous "unreferenced parameter" warning in method destroy.
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#pragma warning (push)
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#pragma warning (disable: 4100)
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#endif
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//! Meets "allocator" requirements of ISO C++ Standard, Section 20.1.5
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/** The class selects the best memory allocation mechanism available
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from scalable_malloc and standard malloc.
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The members are ordered the same way they are in section 20.4.1
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of the ISO C++ standard.
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@ingroup memory_allocation */
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template<typename T>
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class tbb_allocator {
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public:
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typedef typename internal::allocator_type<T>::value_type value_type;
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typedef value_type* pointer;
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typedef const value_type* const_pointer;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef size_t size_type;
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typedef ptrdiff_t difference_type;
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template<typename U> struct rebind {
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typedef tbb_allocator<U> other;
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};
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//! Specifies current allocator
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enum malloc_type {
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scalable,
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standard
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};
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tbb_allocator() throw() {}
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tbb_allocator( const tbb_allocator& ) throw() {}
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template<typename U> tbb_allocator(const tbb_allocator<U>&) throw() {}
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pointer address(reference x) const {return &x;}
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const_pointer address(const_reference x) const {return &x;}
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//! Allocate space for n objects.
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pointer allocate( size_type n, const void* /*hint*/ = 0) {
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return pointer(internal::allocate_via_handler_v3( n * sizeof(value_type) ));
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}
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//! Free previously allocated block of memory.
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void deallocate( pointer p, size_type ) {
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internal::deallocate_via_handler_v3(p);
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}
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//! Largest value for which method allocate might succeed.
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size_type max_size() const throw() {
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size_type max = static_cast<size_type>(-1) / sizeof (value_type);
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return (max > 0 ? max : 1);
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}
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//! Copy-construct value at location pointed to by p.
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void construct( pointer p, const value_type& value ) {new(static_cast<void*>(p)) value_type(value);}
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//! Destroy value at location pointed to by p.
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void destroy( pointer p ) {p->~value_type();}
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//! Returns current allocator
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static malloc_type allocator_type() {
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return internal::is_malloc_used_v3() ? standard : scalable;
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}
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};
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#if _MSC_VER && !defined(__INTEL_COMPILER)
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#pragma warning (pop)
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#endif // warning 4100 is back
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//! Analogous to std::allocator<void>, as defined in ISO C++ Standard, Section 20.4.1
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/** @ingroup memory_allocation */
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template<>
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class tbb_allocator<void> {
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public:
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typedef void* pointer;
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typedef const void* const_pointer;
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typedef void value_type;
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template<typename U> struct rebind {
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typedef tbb_allocator<U> other;
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};
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};
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template<typename T, typename U>
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inline bool operator==( const tbb_allocator<T>&, const tbb_allocator<U>& ) {return true;}
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template<typename T, typename U>
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inline bool operator!=( const tbb_allocator<T>&, const tbb_allocator<U>& ) {return false;}
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//! Meets "allocator" requirements of ISO C++ Standard, Section 20.1.5
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/** The class is an adapter over an actual allocator that fills the allocation
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using memset function with template argument C as the value.
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The members are ordered the same way they are in section 20.4.1
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of the ISO C++ standard.
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@ingroup memory_allocation */
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template <typename T, template<typename X> class Allocator = tbb_allocator>
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class zero_allocator : public Allocator<T>
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{
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public:
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typedef Allocator<T> base_allocator_type;
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typedef typename base_allocator_type::value_type value_type;
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typedef typename base_allocator_type::pointer pointer;
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typedef typename base_allocator_type::const_pointer const_pointer;
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typedef typename base_allocator_type::reference reference;
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typedef typename base_allocator_type::const_reference const_reference;
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typedef typename base_allocator_type::size_type size_type;
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typedef typename base_allocator_type::difference_type difference_type;
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template<typename U> struct rebind {
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typedef zero_allocator<U, Allocator> other;
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};
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zero_allocator() throw() { }
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zero_allocator(const zero_allocator &a) throw() : base_allocator_type( a ) { }
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template<typename U>
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zero_allocator(const zero_allocator<U> &a) throw() : base_allocator_type( Allocator<U>( a ) ) { }
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pointer allocate(const size_type n, const void *hint = 0 ) {
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pointer ptr = base_allocator_type::allocate( n, hint );
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std::memset( ptr, 0, n * sizeof(value_type) );
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return ptr;
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}
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};
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//! Analogous to std::allocator<void>, as defined in ISO C++ Standard, Section 20.4.1
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/** @ingroup memory_allocation */
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template<template<typename T> class Allocator>
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class zero_allocator<void, Allocator> : public Allocator<void> {
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public:
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typedef Allocator<void> base_allocator_type;
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typedef typename base_allocator_type::value_type value_type;
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typedef typename base_allocator_type::pointer pointer;
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typedef typename base_allocator_type::const_pointer const_pointer;
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template<typename U> struct rebind {
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typedef zero_allocator<U, Allocator> other;
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};
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};
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template<typename T1, template<typename X1> class B1, typename T2, template<typename X2> class B2>
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inline bool operator==( const zero_allocator<T1,B1> &a, const zero_allocator<T2,B2> &b) {
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return static_cast< B1<T1> >(a) == static_cast< B2<T2> >(b);
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}
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template<typename T1, template<typename X1> class B1, typename T2, template<typename X2> class B2>
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inline bool operator!=( const zero_allocator<T1,B1> &a, const zero_allocator<T2,B2> &b) {
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return static_cast< B1<T1> >(a) != static_cast< B2<T2> >(b);
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}
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} // namespace tbb
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#endif /* __TBB_tbb_allocator_H */
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