ext-boost/boost/container/detail/alloc_lib.h
2014-12-28 01:22:08 -02:00

327 lines
12 KiB
C

//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2005-2013. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/container for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#ifndef BOOST_CONTAINER_ALLOC_LIB_EXT_H
#define BOOST_CONTAINER_ALLOC_LIB_EXT_H
#include <stddef.h>
#ifdef _MSC_VER
#pragma warning (push)
#pragma warning (disable : 4127)
/*
we need to import/export our code only if the user has specifically
asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
libraries to be dynamically linked, or BOOST_CONTAINER_DYN_LINK
if they want just this one to be dynamically liked:
*/
#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_CONTAINER_DYN_LINK)
/* export if this is our own source, otherwise import: */
#ifdef BOOST_CONTAINER_SOURCE
# define BOOST_CONTAINER_DECL __declspec(dllexport)
#else
# define BOOST_CONTAINER_DECL __declspec(dllimport)
#endif /* BOOST_CONTAINER_SOURCE */
#endif /* DYN_LINK */
#endif /* _MSC_VER */
/* if BOOST_CONTAINER_DECL isn't defined yet define it now: */
#ifndef BOOST_CONTAINER_DECL
#define BOOST_CONTAINER_DECL
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*!An forward iterator to traverse the elements of a memory chain container.*/
typedef struct multialloc_node_impl
{
struct multialloc_node_impl *next_node_ptr;
} boost_cont_memchain_node;
/*!An forward iterator to traverse the elements of a memory chain container.*/
typedef struct multialloc_it_impl
{
boost_cont_memchain_node *node_ptr;
} boost_cont_memchain_it;
/*!Memory chain: A container holding memory portions allocated by boost_cont_multialloc_nodes
and boost_cont_multialloc_arrays functions.*/
typedef struct boost_cont_memchain_impl
{
size_t num_mem;
boost_cont_memchain_node root_node;
boost_cont_memchain_node *last_node_ptr;
} boost_cont_memchain;
/*!Advances the iterator one position so that it points to the next element in the memory chain*/
#define BOOST_CONTAINER_MEMIT_NEXT(IT) (IT.node_ptr = IT.node_ptr->next_node_ptr)
/*!Returns the address of the memory chain currently pointed by the iterator*/
#define BOOST_CONTAINER_MEMIT_ADDR(IT) ((void*)IT.node_ptr)
/*!Initializer for an iterator pointing to the position before the first element*/
#define BOOST_CONTAINER_MEMCHAIN_BEFORE_BEGIN_IT(PMEMCHAIN) { &((PMEMCHAIN)->root_node) }
/*!Initializer for an iterator pointing to the first element*/
#define BOOST_CONTAINER_MEMCHAIN_BEGIN_IT(PMEMCHAIN) {(PMEMCHAIN)->root_node.next_node_ptr }
/*!Initializer for an iterator pointing to the last element*/
#define BOOST_CONTAINER_MEMCHAIN_LAST_IT(PMEMCHAIN) {(PMEMCHAIN)->last_node_ptr }
/*!Initializer for an iterator pointing to one past the last element (end iterator)*/
#define BOOST_CONTAINER_MEMCHAIN_END_IT(PMEMCHAIN) {(boost_cont_memchain_node *)0 }
/*!True if IT is the end iterator, false otherwise*/
#define BOOST_CONTAINER_MEMCHAIN_IS_END_IT(PMEMCHAIN, IT) (!(IT).node_ptr)
/*!The address of the first memory portion hold by the memory chain*/
#define BOOST_CONTAINER_MEMCHAIN_FIRSTMEM(PMEMCHAIN)((void*)((PMEMCHAIN)->root_node.next_node_ptr))
/*!The address of the last memory portion hold by the memory chain*/
#define BOOST_CONTAINER_MEMCHAIN_LASTMEM(PMEMCHAIN) ((void*)((PMEMCHAIN)->last_node_ptr))
/*!The number of memory portions hold by the memory chain*/
#define BOOST_CONTAINER_MEMCHAIN_SIZE(PMEMCHAIN) ((PMEMCHAIN)->num_mem)
/*!Initializes the memory chain from the first memory portion, the last memory
portion and number of portions obtained from another memory chain*/
#define BOOST_CONTAINER_MEMCHAIN_INIT_FROM(PMEMCHAIN, FIRST, LAST, NUM)\
(PMEMCHAIN)->last_node_ptr = (boost_cont_memchain_node *)(LAST), \
(PMEMCHAIN)->root_node.next_node_ptr = (boost_cont_memchain_node *)(FIRST), \
(PMEMCHAIN)->num_mem = (NUM);\
/**/
/*!Default initializes a memory chain. Postconditions: begin iterator is end iterator,
the number of portions is zero.*/
#define BOOST_CONTAINER_MEMCHAIN_INIT(PMEMCHAIN)\
((PMEMCHAIN)->root_node.next_node_ptr = 0, (PMEMCHAIN)->last_node_ptr = &((PMEMCHAIN)->root_node), (PMEMCHAIN)->num_mem = 0)\
/**/
/*!True if the memory chain is empty (holds no memory portions*/
#define BOOST_CONTAINER_MEMCHAIN_EMPTY(PMEMCHAIN)\
((PMEMCHAIN)->num_mem == 0)\
/**/
/*!Inserts a new memory portions in the front of the chain*/
#define BOOST_CONTAINER_MEMCHAIN_PUSH_BACK(PMEMCHAIN, MEM)\
do{\
boost_cont_memchain *____chain____ = (PMEMCHAIN);\
boost_cont_memchain_node *____tmp_mem____ = (boost_cont_memchain_node *)(MEM);\
____chain____->last_node_ptr->next_node_ptr = ____tmp_mem____;\
____tmp_mem____->next_node_ptr = 0;\
____chain____->last_node_ptr = ____tmp_mem____;\
++____chain____->num_mem;\
}while(0)\
/**/
/*!Inserts a new memory portions in the back of the chain*/
#define BOOST_CONTAINER_MEMCHAIN_PUSH_FRONT(PMEMCHAIN, MEM)\
do{\
boost_cont_memchain *____chain____ = (PMEMCHAIN);\
boost_cont_memchain_node *____tmp_mem____ = (boost_cont_memchain_node *)(MEM);\
boost_cont_memchain *____root____ = &((PMEMCHAIN)->root_node);\
if(!____chain____->root_node.next_node_ptr){\
____chain____->last_node_ptr = ____tmp_mem____;\
}\
boost_cont_memchain_node *____old_first____ = ____root____->next_node_ptr;\
____tmp_mem____->next_node_ptr = ____old_first____;\
____root____->next_node_ptr = ____tmp_mem____;\
++____chain____->num_mem;\
}while(0)\
/**/
/*!Erases the memory portion after the portion pointed by BEFORE_IT from the memory chain*/
/*!Precondition: BEFORE_IT must be a valid iterator of the memory chain and it can't be the end iterator*/
#define BOOST_CONTAINER_MEMCHAIN_ERASE_AFTER(PMEMCHAIN, BEFORE_IT)\
do{\
boost_cont_memchain *____chain____ = (PMEMCHAIN);\
boost_cont_memchain_node *____prev_node____ = (BEFORE_IT).node_ptr;\
boost_cont_memchain_node *____erase_node____ = ____prev_node____->next_node_ptr;\
if(____chain____->last_node_ptr == ____erase_node____){\
____chain____->last_node_ptr = &____chain____->root_node;\
}\
____prev_node____->next_node_ptr = ____erase_node____->next_node_ptr;\
--____chain____->num_mem;\
}while(0)\
/**/
/*!Erases the first portion from the memory chain.
Precondition: the memory chain must not be empty*/
#define BOOST_CONTAINER_MEMCHAIN_POP_FRONT(PMEMCHAIN)\
do{\
boost_cont_memchain *____chain____ = (PMEMCHAIN);\
boost_cont_memchain_node *____prev_node____ = &____chain____->root_node;\
boost_cont_memchain_node *____erase_node____ = ____prev_node____->next_node_ptr;\
if(____chain____->last_node_ptr == ____erase_node____){\
____chain____->last_node_ptr = &____chain____->root_node;\
}\
____prev_node____->next_node_ptr = ____erase_node____->next_node_ptr;\
--____chain____->num_mem;\
}while(0)\
/**/
/*!Joins two memory chains inserting the portions of the second chain at the back of the first chain*/
/*
#define BOOST_CONTAINER_MEMCHAIN_SPLICE_BACK(PMEMCHAIN, PMEMCHAIN2)\
do{\
boost_cont_memchain *____chain____ = (PMEMCHAIN);\
boost_cont_memchain *____chain2____ = (PMEMCHAIN2);\
if(!____chain2____->root_node.next_node_ptr){\
break;\
}\
else if(!____chain____->first_mem){\
____chain____->first_mem = ____chain2____->first_mem;\
____chain____->last_node_ptr = ____chain2____->last_node_ptr;\
____chain____->num_mem = ____chain2____->num_mem;\
BOOST_CONTAINER_MEMCHAIN_INIT(*____chain2____);\
}\
else{\
____chain____->last_node_ptr->next_node_ptr = ____chain2____->first_mem;\
____chain____->last_node_ptr = ____chain2____->last_node_ptr;\
____chain____->num_mem += ____chain2____->num_mem;\
}\
}while(0)\*/
/**/
/*!Joins two memory chains inserting the portions of the second chain at the back of the first chain*/
#define BOOST_CONTAINER_MEMCHAIN_INCORPORATE_AFTER(PMEMCHAIN, BEFORE_IT, FIRST, BEFORELAST, NUM)\
do{\
boost_cont_memchain *____chain____ = (PMEMCHAIN);\
boost_cont_memchain_node *____pnode____ = (BEFORE_IT).node_ptr;\
boost_cont_memchain_node *____next____ = ____pnode____->next_node_ptr;\
boost_cont_memchain_node *____first____ = (boost_cont_memchain_node *)(FIRST);\
boost_cont_memchain_node *____blast____ = (boost_cont_memchain_node *)(BEFORELAST);\
size_t ____num____ = (NUM);\
if(!____num____){\
break;\
}\
if(____pnode____ == ____chain____->last_node_ptr){\
____chain____->last_node_ptr = ____blast____;\
}\
____pnode____->next_node_ptr = ____first____;\
____blast____->next_node_ptr = ____next____;\
____chain____->num_mem += ____num____;\
}while(0)\
/**/
BOOST_CONTAINER_DECL size_t boost_cont_size(const void *p);
BOOST_CONTAINER_DECL void* boost_cont_malloc(size_t bytes);
BOOST_CONTAINER_DECL void boost_cont_free(void* mem);
BOOST_CONTAINER_DECL void* boost_cont_memalign(size_t bytes, size_t alignment);
/*!Indicates the all elements allocated by boost_cont_multialloc_nodes or boost_cont_multialloc_arrays
must be contiguous.*/
#define DL_MULTIALLOC_ALL_CONTIGUOUS ((size_t)(-1))
/*!Indicates the number of contiguous elements allocated by boost_cont_multialloc_nodes or boost_cont_multialloc_arrays
should be selected by those functions.*/
#define DL_MULTIALLOC_DEFAULT_CONTIGUOUS ((size_t)(0))
BOOST_CONTAINER_DECL int boost_cont_multialloc_nodes
(size_t n_elements, size_t elem_size, size_t contiguous_elements, boost_cont_memchain *pchain);
BOOST_CONTAINER_DECL int boost_cont_multialloc_arrays
(size_t n_elements, const size_t *sizes, size_t sizeof_element, size_t contiguous_elements, boost_cont_memchain *pchain);
BOOST_CONTAINER_DECL void boost_cont_multidealloc(boost_cont_memchain *pchain);
BOOST_CONTAINER_DECL size_t boost_cont_footprint();
BOOST_CONTAINER_DECL size_t boost_cont_allocated_memory();
BOOST_CONTAINER_DECL size_t boost_cont_chunksize(const void *p);
BOOST_CONTAINER_DECL int boost_cont_all_deallocated();
typedef struct boost_cont_malloc_stats_impl
{
size_t max_system_bytes;
size_t system_bytes;
size_t in_use_bytes;
} boost_cont_malloc_stats_t;
BOOST_CONTAINER_DECL boost_cont_malloc_stats_t boost_cont_malloc_stats();
BOOST_CONTAINER_DECL size_t boost_cont_in_use_memory();
BOOST_CONTAINER_DECL int boost_cont_trim(size_t pad);
BOOST_CONTAINER_DECL int boost_cont_mallopt
(int parameter_number, int parameter_value);
BOOST_CONTAINER_DECL int boost_cont_grow
(void* oldmem, size_t minbytes, size_t maxbytes, size_t *received);
BOOST_CONTAINER_DECL int boost_cont_shrink
(void* oldmem, size_t minbytes, size_t maxbytes, size_t *received, int do_commit);
BOOST_CONTAINER_DECL void* boost_cont_alloc
(size_t minbytes, size_t preferred_bytes, size_t *received_bytes);
BOOST_CONTAINER_DECL int boost_cont_malloc_check();
typedef unsigned int allocation_type;
enum
{
// constants for allocation commands
BOOST_CONTAINER_ALLOCATE_NEW = 0X01,
BOOST_CONTAINER_EXPAND_FWD = 0X02,
BOOST_CONTAINER_EXPAND_BWD = 0X04,
BOOST_CONTAINER_SHRINK_IN_PLACE = 0X08,
BOOST_CONTAINER_NOTHROW_ALLOCATION = 0X10,
// BOOST_CONTAINER_ZERO_MEMORY = 0X20,
BOOST_CONTAINER_TRY_SHRINK_IN_PLACE = 0X40,
BOOST_CONTAINER_EXPAND_BOTH = BOOST_CONTAINER_EXPAND_FWD | BOOST_CONTAINER_EXPAND_BWD,
BOOST_CONTAINER_EXPAND_OR_NEW = BOOST_CONTAINER_ALLOCATE_NEW | BOOST_CONTAINER_EXPAND_BOTH
};
//#define BOOST_CONTAINERDLMALLOC__FOOTERS
#ifndef BOOST_CONTAINERDLMALLOC__FOOTERS
enum { BOOST_CONTAINER_ALLOCATION_PAYLOAD = sizeof(size_t) };
#else
enum { BOOST_CONTAINER_ALLOCATION_PAYLOAD = sizeof(size_t)*2 };
#endif
typedef struct boost_cont_command_ret_impl
{
void *first;
int second;
}boost_cont_command_ret_t;
BOOST_CONTAINER_DECL boost_cont_command_ret_t boost_cont_allocation_command
( allocation_type command
, size_t sizeof_object
, size_t limit_objects
, size_t preferred_objects
, size_t *received_objects
, void *reuse_ptr
);
BOOST_CONTAINER_DECL int boost_cont_mallopt(int param_number, int value);
#ifdef __cplusplus
} //extern "C" {
#endif
#ifdef _MSC_VER
#pragma warning (pop)
#endif
#endif //#define BOOST_CONTAINERDLMALLOC__EXT_H