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Diffstat (limited to 'boost/container/detail/alloc_lib.h')
-rw-r--r-- | boost/container/detail/alloc_lib.h | 326 |
1 files changed, 326 insertions, 0 deletions
diff --git a/boost/container/detail/alloc_lib.h b/boost/container/detail/alloc_lib.h new file mode 100644 index 0000000000..4802d9d814 --- /dev/null +++ b/boost/container/detail/alloc_lib.h @@ -0,0 +1,326 @@ +////////////////////////////////////////////////////////////////////////////// +// +// (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 |