__gnu_cxx::__mt_alloc< _Tp > Class Template Reference

#include <mt_allocator.h>

List of all members.

Public Types
typedef size_t	size_type
typedef ptrdiff_t	difference_type
typedef _Tp *	pointer
typedef const _Tp *	const_pointer
typedef _Tp &	reference
typedef const _Tp &	const_reference
typedef _Tp	value_type
Public Member Functions
	__mt_alloc () throw ()
	__mt_alloc (const __mt_alloc &) throw ()
template<typename _Tp1>	__mt_alloc (const __mt_alloc< _Tp1 > &obj) throw ()
	~__mt_alloc () throw ()
pointer	address (reference __x) const
const_pointer	address (const_reference __x) const
size_type	max_size () const throw ()
void	construct (pointer __p, const _Tp &__val)
void	destroy (pointer __p)
pointer	allocate (size_type __n, const void *=0)
void	deallocate (pointer __p, size_type __n)
Private Types
typedef unsigned short int	_Binmap_type
Static Private Member Functions
void	_S_initialize ()
const _Tune	_S_get_options ()
void	_S_set_options (_Tune __t)
size_t	_S_get_thread_id ()
Static Private Attributes
bool	_S_init = false
_Tune	_S_options
_Binmap_type *	_S_binmap
_Bin_record *volatile	_S_bin
size_t	_S_bin_size = 1

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Detailed Description

template<typename _Tp>
class __gnu_cxx::__mt_alloc< _Tp >

This is a fixed size (power of 2) allocator which - when compiled with thread support - will maintain one freelist per size per thread plus a "global" one. Steps are taken to limit the per thread freelist sizes (by returning excess back to "global").

Further details: http://gcc.gnu.org/onlinedocs/libstdc++/ext/mt_allocator.html

Definition at line 57 of file mt_allocator.h.

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Member Typedef Documentation

template<typename _Tp> typedef unsigned short int __gnu_cxx::__mt_alloc< _Tp >::_Binmap_type [private]

Definition at line 202 of file mt_allocator.h. Referenced by __gnu_cxx::__mt_alloc< _Tp >::_S_initialize().

template<typename _Tp> typedef const _Tp* __gnu_cxx::__mt_alloc< _Tp >::const_pointer

Definition at line 63 of file mt_allocator.h.

template<typename _Tp> typedef const _Tp& __gnu_cxx::__mt_alloc< _Tp >::const_reference

Definition at line 65 of file mt_allocator.h.

template<typename _Tp> typedef ptrdiff_t __gnu_cxx::__mt_alloc< _Tp >::difference_type

Definition at line 61 of file mt_allocator.h.

template<typename _Tp> typedef _Tp* __gnu_cxx::__mt_alloc< _Tp >::pointer

Definition at line 62 of file mt_allocator.h.

template<typename _Tp> typedef _Tp& __gnu_cxx::__mt_alloc< _Tp >::reference

Definition at line 64 of file mt_allocator.h.

template<typename _Tp> typedef size_t __gnu_cxx::__mt_alloc< _Tp >::size_type

Definition at line 60 of file mt_allocator.h.

template<typename _Tp> typedef _Tp __gnu_cxx::__mt_alloc< _Tp >::value_type

Definition at line 66 of file mt_allocator.h.

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Constructor & Destructor Documentation

template<typename _Tp> __gnu_cxx::__mt_alloc< _Tp >::__mt_alloc (   )  throw () [inline]

Definition at line 72 of file mt_allocator.h.

template<typename _Tp> __gnu_cxx::__mt_alloc< _Tp >::__mt_alloc (  const __mt_alloc< _Tp > &   )  throw () [inline]

Definition at line 77 of file mt_allocator.h.

template<typename _Tp> template<typename _Tp1> __gnu_cxx::__mt_alloc< _Tp >::__mt_alloc (  const __mt_alloc< _Tp1 > &  obj  )  throw () [inline]

Definition at line 83 of file mt_allocator.h.

template<typename _Tp> __gnu_cxx::__mt_alloc< _Tp >::~__mt_alloc (   )  throw () [inline]

Definition at line 88 of file mt_allocator.h.

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Member Function Documentation

template<typename _Tp> const _Tune __gnu_cxx::__mt_alloc< _Tp >::_S_get_options (   )  [inline, static, private]

Definition at line 190 of file mt_allocator.h. References __gnu_cxx::__mt_alloc< _Tp >::_S_options.

template<typename _Tp> size_t __gnu_cxx::__mt_alloc< _Tp >::_S_get_thread_id (   )  [static, private]

Definition at line 624 of file mt_allocator.h. References __gthread_active_p(), __gthread_getspecific(), __gthread_mutex_lock(), __gthread_mutex_unlock(), and __gthread_setspecific(). Referenced by __gnu_cxx::__mt_alloc< _Tp >::allocate(), and __gnu_cxx::__mt_alloc< _Tp >::deallocate().

template<typename _Tp> void __gnu_cxx::__mt_alloc< _Tp >::_S_initialize (   )  [static, private]

Definition at line 489 of file mt_allocator.h. References __gthread_active_p(), __gthread_key_create(), __GTHREAD_MUTEX_INIT, __gthread_mutex_t, __gnu_cxx::__mt_alloc< _Tp >::_Binmap_type, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_align, __gnu_cxx::__mt_alloc< _Tp >::_Bin_record::_M_first, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_force_new, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_max_bytes, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_max_threads, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_min_bin, __gnu_cxx::__mt_alloc< _Tp >::_S_bin_size, __gnu_cxx::__mt_alloc< _Tp >::_S_binmap, __gnu_cxx::__mt_alloc< _Tp >::_S_init, and __gnu_cxx::__mt_alloc< _Tp >::_S_options. Referenced by __gnu_cxx::__mt_alloc< _Tp >::allocate().

template<typename _Tp> void __gnu_cxx::__mt_alloc< _Tp >::_S_set_options (  _Tune  __t  )  [inline, static, private]

Definition at line 194 of file mt_allocator.h. References __gnu_cxx::__mt_alloc< _Tp >::_S_init, and __gnu_cxx::__mt_alloc< _Tp >::_S_options.

template<typename _Tp> const_pointer __gnu_cxx::__mt_alloc< _Tp >::address (  const_reference  __x  )  const [inline]

Definition at line 95 of file mt_allocator.h.

template<typename _Tp> pointer __gnu_cxx::__mt_alloc< _Tp >::address (  reference  __x  )  const [inline]

Definition at line 91 of file mt_allocator.h.

template<typename _Tp> __mt_alloc< _Tp >::pointer __gnu_cxx::__mt_alloc< _Tp >::allocate (  size_type  __n, const void *  = 0 )

Definition at line 280 of file mt_allocator.h. References __gthread_active_p(), __gthread_mutex_lock(), __gthread_mutex_unlock(), __gthread_once(), __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_align, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_chunk_size, __gnu_cxx::__mt_alloc< _Tp >::_Bin_record::_M_first, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_force_new, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_max_bytes, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_min_bin, __gnu_cxx::__mt_alloc< _Tp >::_Block_record::_M_next, __gnu_cxx::__mt_alloc< _Tp >::_S_binmap, __gnu_cxx::__mt_alloc< _Tp >::_S_get_thread_id(), __gnu_cxx::__mt_alloc< _Tp >::_S_init, __gnu_cxx::__mt_alloc< _Tp >::_S_initialize(), and __gnu_cxx::__mt_alloc< _Tp >::_S_options.

template<typename _Tp> void __gnu_cxx::__mt_alloc< _Tp >::construct (  pointer  __p, const _Tp &  __val )  [inline]

Definition at line 105 of file mt_allocator.h. References __gnu_cxx::__val.

template<typename _Tp> void __gnu_cxx::__mt_alloc< _Tp >::deallocate (  pointer  __p, size_type  __n )

Definition at line 418 of file mt_allocator.h. References __gthread_active_p(), __gthread_mutex_lock(), __gthread_mutex_unlock(), __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_align, __gnu_cxx::__mt_alloc< _Tp >::_Bin_record::_M_first, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_force_new, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_freelist_headroom, __gnu_cxx::__mt_alloc< _Tp >::_Tune::_M_max_bytes, __gnu_cxx::__mt_alloc< _Tp >::_Block_record::_M_next, __gnu_cxx::__mt_alloc< _Tp >::_S_bin_size, __gnu_cxx::__mt_alloc< _Tp >::_S_binmap, __gnu_cxx::__mt_alloc< _Tp >::_S_get_thread_id(), and __gnu_cxx::__mt_alloc< _Tp >::_S_options.

template<typename _Tp> void __gnu_cxx::__mt_alloc< _Tp >::destroy (  pointer  __p  )  [inline]

Definition at line 109 of file mt_allocator.h.

template<typename _Tp> size_type __gnu_cxx::__mt_alloc< _Tp >::max_size (  void   )  const throw () [inline]

Definition at line 99 of file mt_allocator.h.

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Member Data Documentation

template<typename _Tp> __mt_alloc< _Tp >::_Bin_record *volatile __gnu_cxx::__mt_alloc< _Tp >::_S_bin [static, private]

Definition at line 691 of file mt_allocator.h.

template<typename _Tp> size_t __gnu_cxx::__mt_alloc< _Tp >::_S_bin_size = 1 [static, private]

Definition at line 694 of file mt_allocator.h. Referenced by __gnu_cxx::__mt_alloc< _Tp >::_S_initialize(), and __gnu_cxx::__mt_alloc< _Tp >::deallocate().

template<typename _Tp> __mt_alloc< _Tp >::_Binmap_type * __gnu_cxx::__mt_alloc< _Tp >::_S_binmap [static, private]

Definition at line 688 of file mt_allocator.h. Referenced by __gnu_cxx::__mt_alloc< _Tp >::_S_initialize(), __gnu_cxx::__mt_alloc< _Tp >::allocate(), and __gnu_cxx::__mt_alloc< _Tp >::deallocate().

template<typename _Tp> bool __gnu_cxx::__mt_alloc< _Tp >::_S_init = false [static, private]

Definition at line 682 of file mt_allocator.h. Referenced by __gnu_cxx::__mt_alloc< _Tp >::_S_initialize(), __gnu_cxx::__mt_alloc< _Tp >::_S_set_options(), and __gnu_cxx::__mt_alloc< _Tp >::allocate().

template<typename _Tp> __mt_alloc< _Tp >::_Tune __gnu_cxx::__mt_alloc< _Tp >::_S_options [static, private]

Definition at line 685 of file mt_allocator.h. Referenced by __gnu_cxx::__mt_alloc< _Tp >::_S_get_options(), __gnu_cxx::__mt_alloc< _Tp >::_S_initialize(), __gnu_cxx::__mt_alloc< _Tp >::_S_set_options(), __gnu_cxx::__mt_alloc< _Tp >::allocate(), and __gnu_cxx::__mt_alloc< _Tp >::deallocate().

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The documentation for this class was generated from the following file:

• mt_allocator.h

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