Detailed Description

memory allocation routines

Author: Tobias Achterberg; Gerald Gamrath; Marc Pfetsch; Jakob Witzig

Definition in file memory.c.

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <stdint.h>
#include "blockmemshell/memory.h"
#include "scip/rbtree.h"

Go to the source code of this file.

Data Structures
struct	BMS_BufMem

Macros
#define	debugMessage while( FALSE ) printf

#define	errorMessage printf

#define	printErrorHeader(f, l) printf("[%s:%d] ERROR: ", f, l)

#define	printError printf

#define	warningMessage printf

#define	printInfo printf

#define	LONGINT_FORMAT SCIP_LONGINT_FORMAT

#define	MAXMEMSIZE SCIP_MAXMEMSIZE

#define	CHKHASH_POWER 10

#define	CHKHASH_SIZE (1<<CHKHASH_POWER)

#define	CHUNKLENGTH_MIN 1024

#define	CHUNKLENGTH_MAX 1048576

#define	STORESIZE_MAX 8192

#define	GARBAGE_SIZE 256

#define	ALIGNMENT (sizeof(FREELIST))

#define	CHUNK_LT(ptr, chunk) ptr < chunk->store

#define	CHUNK_GT(ptr, chunk) ptr >= chunk->storeend

#define	checkChunk(chunk)

#define	checkChkmem(chkmem)

#define	checkBlkmem(blkmem)

Typedefs
typedef struct Freelist	FREELIST

typedef struct Chunk	CHUNK

Functions
size_t	BMSgetPointerSize_call (const void *ptr)

void	BMSdisplayMemory_call (void)

void	BMScheckEmptyMemory_call (void)

long long	BMSgetMemoryUsed_call (void)

void *	BMSallocClearMemory_call (size_t num, size_t typesize, const char *filename, int line)

void *	BMSallocMemory_call (size_t size, const char *filename, int line)

void *	BMSallocMemoryArray_call (size_t num, size_t typesize, const char *filename, int line)

void *	BMSreallocMemory_call (void ptr, size_t size, const char filename, int line)

void *	BMSreallocMemoryArray_call (void ptr, size_t num, size_t typesize, const char filename, int line)

void	BMSclearMemory_call (void *ptr, size_t size)

void	BMScopyMemory_call (void ptr, const void source, size_t size)

void	BMSmoveMemory_call (void ptr, const void source, size_t size)

void *	BMSduplicateMemory_call (const void source, size_t size, const char filename, int line)

void *	BMSduplicateMemoryArray_call (const void source, size_t num, size_t typesize, const char filename, int line)

void	BMSfreeMemory_call (void *ptr, const char filename, int line)

void	BMSfreeMemoryNull_call (void *ptr, const char filename, int line)

static	SCIP_DEF_RBTREE_FIND (rbTreeFindChunk, const void *, CHUNK, CHUNK_LT, CHUNK_GT)

void	BMSalignMemsize (size_t *size)

int	BMSisAligned (size_t size)

static int	isPtrInChunk (const CHUNK chunk, const void ptr)

static CHUNK *	findChunk (const BMS_CHKMEM chkmem, const void ptr)

static int	isPtrInChkmem (const BMS_CHKMEM chkmem, const void ptr)

static int	linkChunk (BMS_CHKMEM chkmem, CHUNK chunk)

static void	unlinkChunk (CHUNK *chunk)

static void	linkEagerChunk (BMS_CHKMEM chkmem, CHUNK chunk)

static void	unlinkEagerChunk (CHUNK *chunk)

static int	createChunk (BMS_CHKMEM chkmem, long long memsize)

static void	destroyChunk (CHUNK chunk, long long memsize)

static void	freeChunk (CHUNK chunk, long long memsize)

static void *	allocChunkElement (CHUNK *chunk)

static void	freeChunkElement (CHUNK chunk, void ptr)

static BMS_CHKMEM *	createChkmem (int size, int initchunksize, int garbagefactor, long long *memsize)

static void	clearChkmem (BMS_CHKMEM chkmem, long long memsize)

static void	destroyChkmem (BMS_CHKMEM *chkmem, long long memsize)

static void *	allocChkmemElement (BMS_CHKMEM chkmem, long long memsize)

static void	garbagecollectChkmem (BMS_CHKMEM chkmem, long long memsize)

static void	freeChkmemElement (BMS_CHKMEM chkmem, void ptr, long long memsize, const char filename, int line)

BMS_CHKMEM *	BMScreateChunkMemory_call (size_t size, int initchunksize, int garbagefactor, const char *filename, int line)

void	BMSclearChunkMemory_call (BMS_CHKMEM chkmem, const char filename, int line)

void	BMSdestroyChunkMemory_call (BMS_CHKMEM *chkmem, const char filename, int line)

void *	BMSallocChunkMemory_call (BMS_CHKMEM chkmem, size_t size, const char filename, int line)

void *	BMSduplicateChunkMemory_call (BMS_CHKMEM chkmem, const void source, size_t size, const char *filename, int line)

void	BMSfreeChunkMemory_call (BMS_CHKMEM chkmem, void ptr, size_t size, const char filename, int line)

void	BMSfreeChunkMemoryNull_call (BMS_CHKMEM chkmem, void ptr, size_t size, const char filename, int line)

void	BMSgarbagecollectChunkMemory_call (BMS_CHKMEM *chkmem)

long long	BMSgetChunkMemoryUsed_call (const BMS_CHKMEM *chkmem)

static BMS_CHKMEM *	findChkmem (const BMS_BLKMEM blkmem, const void ptr)

static int	getHashNumber (int size)

BMS_BLKMEM *	BMScreateBlockMemory_call (int initchunksize, int garbagefactor, const char *filename, int line)

void	BMSclearBlockMemory_call (BMS_BLKMEM blkmem, const char filename, int line)

void	BMSdestroyBlockMemory_call (BMS_BLKMEM *blkmem, const char filename, int line)

static INLINE void *	BMSallocBlockMemory_work (BMS_BLKMEM blkmem, size_t size, const char filename, int line)

void *	BMSallocBlockMemory_call (BMS_BLKMEM blkmem, size_t size, const char filename, int line)

void *	BMSallocBlockMemoryArray_call (BMS_BLKMEM blkmem, size_t num, size_t typesize, const char filename, int line)

void *	BMSallocClearBlockMemoryArray_call (BMS_BLKMEM blkmem, size_t num, size_t typesize, const char filename, int line)

void *	BMSreallocBlockMemory_call (BMS_BLKMEM blkmem, void ptr, size_t oldsize, size_t newsize, const char *filename, int line)

void *	BMSreallocBlockMemoryArray_call (BMS_BLKMEM blkmem, void ptr, size_t oldnum, size_t newnum, size_t typesize, const char *filename, int line)

void *	BMSduplicateBlockMemory_call (BMS_BLKMEM blkmem, const void source, size_t size, const char *filename, int line)

void *	BMSduplicateBlockMemoryArray_call (BMS_BLKMEM blkmem, const void source, size_t num, size_t typesize, const char *filename, int line)

static INLINE void	BMSfreeBlockMemory_work (BMS_BLKMEM blkmem, void ptr, size_t size, const char filename, int line)

void	BMSfreeBlockMemory_call (BMS_BLKMEM blkmem, void ptr, size_t size, const char filename, int line)

void	BMSfreeBlockMemoryNull_call (BMS_BLKMEM blkmem, void ptr, size_t size, const char filename, int line)

void	BMSgarbagecollectBlockMemory_call (BMS_BLKMEM *blkmem)

long long	BMSgetBlockMemoryAllocated_call (const BMS_BLKMEM *blkmem)

long long	BMSgetBlockMemoryUsed_call (const BMS_BLKMEM *blkmem)

long long	BMSgetBlockMemoryUnused_call (const BMS_BLKMEM *blkmem)

long long	BMSgetBlockMemoryUsedMax_call (const BMS_BLKMEM *blkmem)

long long	BMSgetBlockMemoryUnusedMax_call (const BMS_BLKMEM *blkmem)

long long	BMSgetBlockMemoryAllocatedMax_call (const BMS_BLKMEM *blkmem)

size_t	BMSgetBlockPointerSize_call (const BMS_BLKMEM blkmem, const void ptr)

void	BMSdisplayBlockMemory_call (const BMS_BLKMEM *blkmem)

long long	BMScheckEmptyBlockMemory_call (const BMS_BLKMEM *blkmem)

BMS_BUFMEM *	BMScreateBufferMemory_call (double arraygrowfac, int arraygrowinit, unsigned int clean, const char *filename, int line)

void	BMSdestroyBufferMemory_call (BMS_BUFMEM *buffer, const char filename, int line)

void	BMSsetBufferMemoryArraygrowfac (BMS_BUFMEM *buffer, double arraygrowfac)

void	BMSsetBufferMemoryArraygrowinit (BMS_BUFMEM *buffer, int arraygrowinit)

static size_t	calcMemoryGrowSize (size_t initsize, SCIP_Real growfac, size_t num)

static INLINE void *	BMSallocBufferMemory_work (BMS_BUFMEM buffer, size_t size, const char filename, int line)

void *	BMSallocBufferMemory_call (BMS_BUFMEM buffer, size_t size, const char filename, int line)

void *	BMSallocBufferMemoryArray_call (BMS_BUFMEM buffer, size_t num, size_t typesize, const char filename, int line)

void *	BMSallocClearBufferMemoryArray_call (BMS_BUFMEM buffer, size_t num, size_t typesize, const char filename, int line)

static INLINE void *	BMSreallocBufferMemory_work (BMS_BUFMEM buffer, void ptr, size_t size, const char *filename, int line)

void *	BMSreallocBufferMemory_call (BMS_BUFMEM buffer, void ptr, size_t size, const char *filename, int line)

void *	BMSreallocBufferMemoryArray_call (BMS_BUFMEM buffer, void ptr, size_t num, size_t typesize, const char *filename, int line)

void *	BMSduplicateBufferMemory_call (BMS_BUFMEM buffer, const void source, size_t size, const char *filename, int line)

void *	BMSduplicateBufferMemoryArray_call (BMS_BUFMEM buffer, const void source, size_t num, size_t typesize, const char *filename, int line)

static INLINE void	BMSfreeBufferMemory_work (BMS_BUFMEM buffer, void ptr, const char filename, int line)

void	BMSfreeBufferMemory_call (BMS_BUFMEM buffer, void ptr, const char filename, int line)

void	BMSfreeBufferMemoryNull_call (BMS_BUFMEM buffer, void ptr, const char filename, int line)

size_t	BMSgetNUsedBufferMemory (BMS_BUFMEM *buffer)

long long	BMSgetBufferMemoryUsed (const BMS_BUFMEM *buffer)

void	BMSprintBufferMemory (BMS_BUFMEM *buffer)

Macro Definition Documentation

◆ debugMessage

◆ errorMessage

#define errorMessage printf

Definition at line 61 of file memory.c.

Referenced by BMScheckEmptyBlockMemory_call(), and garbagecollectChkmem().

◆ printErrorHeader

#define printErrorHeader	(	f,
		l
	)	printf("[%s:%d] ERROR: ", f, l)

Definition at line 62 of file memory.c.

Referenced by BMSallocBlockMemory_call(), BMSallocBlockMemory_work(), BMSallocBlockMemoryArray_call(), BMSallocBufferMemory_call(), BMSallocBufferMemory_work(), BMSallocBufferMemoryArray_call(), BMSallocChunkMemory_call(), BMSallocClearMemory_call(), BMSallocMemory_call(), BMSallocMemoryArray_call(), BMSclearBlockMemory_call(), BMSclearChunkMemory_call(), BMScreateBlockMemory_call(), BMScreateBufferMemory_call(), BMScreateChunkMemory_call(), BMSdestroyBlockMemory_call(), BMSdestroyBufferMemory_call(), BMSdestroyChunkMemory_call(), BMSfreeBlockMemory_call(), BMSfreeBlockMemory_work(), BMSfreeBufferMemory_call(), BMSfreeBufferMemory_work(), BMSfreeChunkMemory_call(), BMSfreeMemory_call(), BMSreallocBlockMemory_call(), BMSreallocBlockMemoryArray_call(), BMSreallocBufferMemory_call(), BMSreallocBufferMemory_work(), BMSreallocBufferMemoryArray_call(), BMSreallocMemory_call(), BMSreallocMemoryArray_call(), and freeChkmemElement().

◆ printError

#define printError printf

Definition at line 63 of file memory.c.

Referenced by BMSallocBlockMemory_call(), BMSallocBlockMemory_work(), BMSallocBlockMemoryArray_call(), BMSallocBufferMemory_call(), BMSallocBufferMemory_work(), BMSallocBufferMemoryArray_call(), BMSallocChunkMemory_call(), BMSallocClearMemory_call(), BMSallocMemory_call(), BMSallocMemoryArray_call(), BMSclearBlockMemory_call(), BMSclearChunkMemory_call(), BMScreateBlockMemory_call(), BMScreateBufferMemory_call(), BMScreateChunkMemory_call(), BMSdestroyBlockMemory_call(), BMSdestroyBufferMemory_call(), BMSdestroyChunkMemory_call(), BMSfreeBlockMemory_call(), BMSfreeBlockMemory_work(), BMSfreeBufferMemory_call(), BMSfreeBufferMemory_work(), BMSfreeChunkMemory_call(), BMSfreeMemory_call(), BMSreallocBlockMemory_call(), BMSreallocBlockMemoryArray_call(), BMSreallocBufferMemory_call(), BMSreallocBufferMemory_work(), BMSreallocBufferMemoryArray_call(), BMSreallocMemory_call(), BMSreallocMemoryArray_call(), and freeChkmemElement().

◆ warningMessage

#define warningMessage printf

Definition at line 66 of file memory.c.

Referenced by BMSfreeBufferMemory_work().

◆ printInfo

#define printInfo printf

Definition at line 67 of file memory.c.

Referenced by BMScheckEmptyMemory_call(), BMSdisplayBlockMemory_call(), and BMSdisplayMemory_call().

◆ LONGINT_FORMAT

#define LONGINT_FORMAT SCIP_LONGINT_FORMAT

Definition at line 86 of file memory.c.

Referenced by BMScheckEmptyBlockMemory_call(), and BMSdisplayBlockMemory_call().

◆ MAXMEMSIZE

#define MAXMEMSIZE SCIP_MAXMEMSIZE

Definition at line 93 of file memory.c.

Referenced by BMSallocBlockMemory_call(), BMSallocBlockMemoryArray_call(), BMSallocBufferMemory_call(), BMSallocBufferMemoryArray_call(), BMSallocClearMemory_call(), BMSallocMemory_call(), BMSallocMemoryArray_call(), BMSreallocBlockMemory_call(), BMSreallocBlockMemoryArray_call(), BMSreallocBufferMemory_call(), BMSreallocBufferMemoryArray_call(), BMSreallocMemory_call(), BMSreallocMemoryArray_call(), and createChunk().

◆ CHKHASH_POWER

#define CHKHASH_POWER 10

power for size of chunk block hash table

Definition at line 651 of file memory.c.

Referenced by getHashNumber().

◆ CHKHASH_SIZE

#define CHKHASH_SIZE (1<<CHKHASH_POWER)

size of chunk block hash table is 2^CHKHASH_POWER

Definition at line 652 of file memory.c.

Referenced by BMScheckEmptyBlockMemory_call(), BMSclearBlockMemory_call(), BMScreateBlockMemory_call(), BMSdisplayBlockMemory_call(), BMSgarbagecollectBlockMemory_call(), BMSgetChunkMemoryUsed_call(), and findChkmem().

◆ CHUNKLENGTH_MIN

#define CHUNKLENGTH_MIN 1024

minimal size of a chunk (in bytes)

Definition at line 679 of file memory.c.

Referenced by createChunk().

◆ CHUNKLENGTH_MAX

#define CHUNKLENGTH_MAX 1048576

maximal size of a chunk (in bytes)

Definition at line 680 of file memory.c.

Referenced by createChunk().

◆ STORESIZE_MAX

#define STORESIZE_MAX 8192

maximal number of elements in one chunk

Definition at line 681 of file memory.c.

Referenced by createChunk().

◆ GARBAGE_SIZE

#define GARBAGE_SIZE 256

size of lazy free list to start garbage collection

Definition at line 682 of file memory.c.

Referenced by freeChkmemElement().

◆ ALIGNMENT

#define ALIGNMENT (sizeof(FREELIST))

minimal alignment of chunks

Definition at line 683 of file memory.c.

Referenced by BMSalignMemsize(), BMSisAligned(), and SCIP_DEF_RBTREE_FIND().

◆ CHUNK_LT

#define CHUNK_LT	(	ptr,
		chunk
	)	ptr < chunk->store

Definition at line 734 of file memory.c.

◆ CHUNK_GT

#define CHUNK_GT	(	ptr,
		chunk
	)	ptr >= chunk->storeend

Definition at line 735 of file memory.c.

◆ checkChunk

#define checkChunk ( chunk )

Definition at line 911 of file memory.c.

Referenced by allocChunkElement(), freeChunkElement(), and isPtrInChkmem().

◆ checkChkmem

#define checkChkmem ( chkmem )

Definition at line 912 of file memory.c.

Referenced by allocChkmemElement(), BMSallocChunkMemory_call(), BMSfreeChunkMemory_call(), BMSfreeChunkMemoryNull_call(), BMSgetChunkMemoryUsed_call(), createChunk(), freeChkmemElement(), garbagecollectChkmem(), and isPtrInChkmem().

◆ checkBlkmem

#define checkBlkmem ( blkmem )

Definition at line 1675 of file memory.c.

Referenced by BMSallocBlockMemory_work(), BMSfreeBlockMemory_call(), BMSfreeBlockMemory_work(), BMSfreeBlockMemoryNull_call(), BMSgarbagecollectBlockMemory_call(), and BMSgetChunkMemoryUsed_call().

Typedef Documentation

◆ FREELIST

typedef struct Freelist FREELIST

linked list of free memory elements

Definition at line 685 of file memory.c.

◆ CHUNK

typedef struct Chunk CHUNK

chunk of memory elements

Definition at line 686 of file memory.c.

Function Documentation

◆ BMSgetPointerSize_call()

size_t BMSgetPointerSize_call ( const void * ptr )

returns the size of an allocated memory element

Parameters

ptr	pointer to allocated memory

Definition at line 282 of file memory.c.

◆ BMSdisplayMemory_call()

void BMSdisplayMemory_call ( void )

outputs information about currently allocated memory to the screen

Definition at line 290 of file memory.c.

References printInfo.

◆ BMScheckEmptyMemory_call()

void BMScheckEmptyMemory_call ( void )

displays a warning message on the screen, if allocated memory exists

Definition at line 300 of file memory.c.

References printInfo.

◆ BMSgetMemoryUsed_call()

long long BMSgetMemoryUsed_call ( void )

returns total number of allocated bytes

Definition at line 310 of file memory.c.

◆ BMSallocClearMemory_call()

void* BMSallocClearMemory_call	(	size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

allocates array and initializes it with 0; returns NULL if memory allocation failed

Parameters

num	number of memory element to allocate
typesize	size of one memory element to allocate
filename	source file where the allocation is performed
line	line number in source file where the allocation is performed

Definition at line 320 of file memory.c.

References debugMessage, MAX, MAXMEMSIZE, NULL, printError, and printErrorHeader.

◆ BMSallocMemory_call()

void* BMSallocMemory_call	(	size_t	size,
		const char *	filename,
		int	line
	)

allocates memory; returns NULL if memory allocation failed

Parameters

size	size of memory element to allocate
filename	source file where the allocation is performed
line	line number in source file where the allocation is performed

Definition at line 361 of file memory.c.

References debugMessage, MAX, MAXMEMSIZE, NULL, printError, and printErrorHeader.

Referenced by BMSduplicateMemory_call().

◆ BMSallocMemoryArray_call()

void* BMSallocMemoryArray_call	(	size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

allocates array; returns NULL if memory allocation failed

Parameters

num	number of components of array to allocate
typesize	size of each component
filename	source file where the allocation is performed
line	line number in source file where the allocation is performed

Definition at line 397 of file memory.c.

References debugMessage, MAX, MAXMEMSIZE, NULL, printError, and printErrorHeader.

Referenced by BMSduplicateMemoryArray_call().

◆ BMSreallocMemory_call()

void* BMSreallocMemory_call	(	void *	ptr,
		size_t	size,
		const char *	filename,
		int	line
	)

allocates memory; returns NULL if memory allocation failed

Parameters

ptr	pointer to memory to reallocate
size	new size of memory element
filename	source file where the reallocation is performed
line	line number in source file where the reallocation is performed

Definition at line 437 of file memory.c.

References MAX, MAXMEMSIZE, NULL, printError, and printErrorHeader.

◆ BMSreallocMemoryArray_call()

void* BMSreallocMemoryArray_call	(	void *	ptr,
		size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

reallocates array; returns NULL if memory allocation failed

Parameters

ptr	pointer to memory to reallocate
num	number of components of array to allocate
typesize	size of each component
filename	source file where the reallocation is performed
line	line number in source file where the reallocation is performed

Definition at line 477 of file memory.c.

References MAX, MAXMEMSIZE, NULL, printError, and printErrorHeader.

◆ BMSclearMemory_call()

void BMSclearMemory_call	(	void *	ptr,
		size_t	size
	)

clears a memory element (i.e. fills it with zeros)

Parameters

ptr	pointer to memory element
size	size of memory element

Definition at line 520 of file memory.c.

References NULL.

◆ BMScopyMemory_call()

void BMScopyMemory_call	(	void *	ptr,
		const void *	source,
		size_t	size
	)

copies the contents of one memory element into another memory element

Parameters

ptr	pointer to target memory element
source	pointer to source memory element
size	size of memory element to copy

Definition at line 533 of file memory.c.

References NULL.

Referenced by BMSduplicateMemory_call(), and BMSduplicateMemoryArray_call().

◆ BMSmoveMemory_call()

void BMSmoveMemory_call	(	void *	ptr,
		const void *	source,
		size_t	size
	)

moves the contents of one memory element into another memory element, should be used if both elements overlap, otherwise BMScopyMemory is faster

Parameters

ptr	pointer to target memory element
source	pointer to source memory element
size	size of memory element to copy

Definition at line 550 of file memory.c.

References NULL.

◆ BMSduplicateMemory_call()

void* BMSduplicateMemory_call	(	const void *	source,
		size_t	size,
		const char *	filename,
		int	line
	)

allocates memory and copies the contents of the given memory element into the new memory element

Parameters

source	pointer to source memory element
size	size of memory element to copy
filename	source file where the duplication is performed
line	line number in source file where the duplication is performed

Definition at line 565 of file memory.c.

References BMSallocMemory_call(), BMScopyMemory_call(), and NULL.

◆ BMSduplicateMemoryArray_call()

void* BMSduplicateMemoryArray_call	(	const void *	source,
		size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

allocates array and copies the contents of the given source array into the new array

Parameters

source	pointer to source memory element
num	number of components of array to allocate
typesize	size of each component
filename	source file where the duplication is performed
line	line number in source file where the duplication is performed

Definition at line 584 of file memory.c.

References BMSallocMemoryArray_call(), BMScopyMemory_call(), and NULL.

◆ BMSfreeMemory_call()

void BMSfreeMemory_call	(	void **	ptr,
		const char *	filename,
		int	line
	)

frees an allocated memory element and sets pointer to NULL

Parameters

ptr	pointer to pointer to memory element
filename	source file where the deallocation is performed
line	line number in source file where the deallocation is performed

Definition at line 604 of file memory.c.

References NULL, printError, and printErrorHeader.

◆ BMSfreeMemoryNull_call()

void BMSfreeMemoryNull_call	(	void **	ptr,
		const char *	filename,
		int	line
	)

frees an allocated memory element if pointer is not NULL and sets pointer to NULL

Parameters

ptr	pointer to pointer to memory element
filename	source file where the deallocation is performed
line	line number in source file where the deallocation is performed

Definition at line 627 of file memory.c.

References NULL.

◆ SCIP_DEF_RBTREE_FIND()

static SCIP_DEF_RBTREE_FIND	(	rbTreeFindChunk	,
		const void *	,
		CHUNK	,
		CHUNK_LT	,
		CHUNK_GT
	)

static

aligns the given byte size corresponding to the minimal alignment pointer to the size to align

Definition at line 738 of file memory.c.

References ALIGNMENT.

◆ BMSalignMemsize()

void BMSalignMemsize ( size_t * size )

aligns the given byte size corresponding to the minimal alignment for chunk and block memory

Parameters

size	pointer to the size to align

Definition at line 754 of file memory.c.

References ALIGNMENT.

◆ BMSisAligned()

int BMSisAligned ( size_t size )

checks whether the given size meets the alignment conditions for chunk and block memory

Parameters

size	size to check for alignment

Definition at line 763 of file memory.c.

References ALIGNMENT.

Referenced by createChkmem(), createChunk(), and getHashNumber().

◆ isPtrInChunk()

static int isPtrInChunk	(	const CHUNK *	chunk,
		const void *	ptr
	)

static

checks, if the given pointer belongs to the given chunk

Parameters

chunk	memory chunk
ptr	pointer

Definition at line 774 of file memory.c.

References NULL.

Referenced by freeChunkElement(), and isPtrInChkmem().

◆ findChunk()

static CHUNK* findChunk	(	const BMS_CHKMEM *	chkmem,
		const void *	ptr
	)

static

given a pointer, finds the chunk this pointer points to in the chunk array of the given chunk block; binary search is used; returns NULL if the pointer does not belong to the chunk block

Parameters

chkmem	chunk block
ptr	pointer

Definition at line 791 of file memory.c.

References NULL.

Referenced by garbagecollectChkmem(), and isPtrInChkmem().

◆ isPtrInChkmem()

static int isPtrInChkmem	(	const BMS_CHKMEM *	chkmem,
		const void *	ptr
	)

static

checks, if a pointer belongs to a chunk of the given chunk block

Parameters

chkmem	chunk block
ptr	pointer

Definition at line 810 of file memory.c.

References checkChkmem, checkChunk, findChunk(), FOR_EACH_NODE, isPtrInChunk(), and NULL.

Referenced by findChkmem(), and freeChkmemElement().

◆ linkChunk()

static int linkChunk	(	BMS_CHKMEM *	chkmem,
		CHUNK *	chunk
	)

static

links chunk to the block's chunk array, sort it by store pointer; returns TRUE if successful, FALSE otherwise

Parameters

chkmem	chunk block
chunk	memory chunk

Definition at line 920 of file memory.c.

References debugMessage, NULL, SCIPrbtreeInsert, and TRUE.

Referenced by createChunk().

◆ unlinkChunk()

static void unlinkChunk ( CHUNK * chunk )

static

unlinks chunk from the chunk block's chunk list

Parameters

chunk memory chunk

Definition at line 948 of file memory.c.

References debugMessage, NULL, and SCIPrbtreeDelete.

Referenced by freeChunk().

◆ linkEagerChunk()

static void linkEagerChunk	(	BMS_CHKMEM *	chkmem,
		CHUNK *	chunk
	)

static

links chunk to the chunk block's eager chunk list

Parameters

chkmem	chunk block
chunk	memory chunk

Definition at line 975 of file memory.c.

References NULL.

Referenced by freeChunkElement().

◆ unlinkEagerChunk()

static void unlinkEagerChunk ( CHUNK * chunk )

static

unlinks chunk from the chunk block's eager chunk list

Parameters

chunk memory chunk

Definition at line 996 of file memory.c.

References NULL.

Referenced by allocChunkElement(), and freeChunk().

◆ createChunk()

static int createChunk	(	BMS_CHKMEM *	chkmem,
		long long *	memsize
	)

static

creates a new memory chunk in the given chunk block and adds memory elements to the lazy free list; returns TRUE if successful, FALSE otherwise

Parameters

chkmem	chunk block
memsize	pointer to total size of allocated memory (or NULL)

Definition at line 1021 of file memory.c.

References BMSallocMemorySize, BMSisAligned(), checkChkmem, CHUNKLENGTH_MAX, CHUNKLENGTH_MIN, debugMessage, FALSE, linkChunk(), MAX, MAXMEMSIZE, MIN, NULL, and STORESIZE_MAX.

Referenced by allocChkmemElement().

◆ destroyChunk()

static void destroyChunk	(	CHUNK *	chunk,
		long long *	memsize
	)

static

destroys a chunk without updating the chunk lists

Parameters

chunk	memory chunk
memsize	pointer to total size of allocated memory (or NULL)

Definition at line 1096 of file memory.c.

References BMSfreeMemory, debugMessage, and NULL.

Referenced by freeChunk().

◆ freeChunk()

static void freeChunk	(	CHUNK *	chunk,
		long long *	memsize
	)

static

removes a completely unused chunk, i.e. a chunk with all elements in the eager free list

Parameters

chunk	memory chunk
memsize	pointer to total size of allocated memory (or NULL)

Definition at line 1114 of file memory.c.

References debugMessage, destroyChunk(), NULL, unlinkChunk(), and unlinkEagerChunk().

Referenced by garbagecollectChkmem().

◆ allocChunkElement()

static void* allocChunkElement ( CHUNK * chunk )

static

returns an element of the eager free list and removes it from the list

Parameters

chunk memory chunk

Definition at line 1145 of file memory.c.

References checkChunk, debugMessage, NULL, and unlinkEagerChunk().

Referenced by allocChkmemElement().

◆ freeChunkElement()

static void freeChunkElement	(	CHUNK *	chunk,
		void *	ptr
	)

static

puts given pointer into the eager free list and adds the chunk to the eager list of its chunk block, if necessary

Parameters

chunk	memory chunk
ptr	pointer

Definition at line 1182 of file memory.c.

References checkChunk, debugMessage, isPtrInChunk(), linkEagerChunk(), and NULL.

Referenced by garbagecollectChkmem().

◆ createChkmem()

static BMS_CHKMEM* createChkmem	(	int	size,
		int	initchunksize,
		int	garbagefactor,
		long long *	memsize
	)

static

creates a new chunk block data structure

Parameters

size	element size of the chunk block
initchunksize	number of elements in the first chunk of the chunk block
garbagefactor	garbage collector is called, if at least garbagefactor * avg. chunksize elements are free (-1: disable garbage collection)
memsize	pointer to total size of allocated memory (or NULL)

Definition at line 1211 of file memory.c.

References BMSallocMemory, BMSisAligned(), and NULL.

Referenced by BMSallocBlockMemory_work(), and BMScreateChunkMemory_call().

◆ clearChkmem()

static void clearChkmem	(	BMS_CHKMEM *	chkmem,
		long long *	memsize
	)

static

destroys all chunks of the chunk block, but keeps the chunk block header structure

Parameters

chkmem	chunk block
memsize	pointer to total size of allocated memory (or NULL)

Definition at line 1255 of file memory.c.

References FOR_EACH_NODE, and NULL.

Referenced by BMSclearChunkMemory_call(), destroyChkmem(), and garbagecollectChkmem().

◆ destroyChkmem()

static void destroyChkmem	(	BMS_CHKMEM **	chkmem,
		long long *	memsize
	)

static

deletes chunk block and frees all associated memory chunks

Parameters

chkmem	pointer to chunk block
memsize	pointer to total size of allocated memory (or NULL)

Definition at line 1280 of file memory.c.

References BMSfreeMemory, BMSfreeMemoryArrayNull, clearChkmem(), and NULL.

Referenced by BMSclearBlockMemory_call(), BMSdestroyChunkMemory_call(), and BMSgarbagecollectBlockMemory_call().

◆ allocChkmemElement()

static void* allocChkmemElement	(	BMS_CHKMEM *	chkmem,
		long long *	memsize
	)

static

allocates a new memory element from the chunk block

Parameters

chkmem	chunk block
memsize	pointer to total size of allocated memory (or NULL)

Definition at line 1302 of file memory.c.

References allocChunkElement(), checkChkmem, createChunk(), and NULL.

Referenced by BMSallocBlockMemory_work(), and BMSallocChunkMemory_call().

◆ garbagecollectChkmem()

static void garbagecollectChkmem	(	BMS_CHKMEM *	chkmem,
		long long *	memsize
	)

static

sorts the lazy free list of the chunk block into the eager free lists of the chunks, and removes completely unused chunks

Parameters

chkmem	chunk block
memsize	pointer to total size of allocated memory (or NULL)

Definition at line 1342 of file memory.c.

References checkChkmem, clearChkmem(), debugMessage, errorMessage, findChunk(), freeChunk(), freeChunkElement(), and NULL.

Referenced by BMSgarbagecollectBlockMemory_call(), BMSgarbagecollectChunkMemory_call(), and freeChkmemElement().

◆ freeChkmemElement()

static void freeChkmemElement	(	BMS_CHKMEM *	chkmem,
		void *	ptr,
		long long *	memsize,
		const char *	filename,
		int	line
	)

static

frees a memory element and returns it to the lazy freelist of the chunk block

Parameters

chkmem	chunk block
ptr	memory element
memsize	pointer to total size of allocated memory (or NULL)
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1410 of file memory.c.

References checkChkmem, GARBAGE_SIZE, garbagecollectChkmem(), isPtrInChkmem(), NULL, printError, and printErrorHeader.

Referenced by BMSfreeBlockMemory_work(), BMSfreeChunkMemory_call(), and BMSfreeChunkMemoryNull_call().

◆ BMScreateChunkMemory_call()

BMS_CHKMEM* BMScreateChunkMemory_call	(	size_t	size,
		int	initchunksize,
		int	garbagefactor,
		const char *	filename,
		int	line
	)

creates a new chunk block data structure

Parameters

size	element size of the chunk block
initchunksize	number of elements in the first chunk of the chunk block
garbagefactor	garbage collector is called, if at least garbagefactor * avg. chunksize elements are free (-1: disable garbage collection)
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1447 of file memory.c.

References createChkmem(), debugMessage, NULL, printError, and printErrorHeader.

◆ BMSclearChunkMemory_call()

void BMSclearChunkMemory_call	(	BMS_CHKMEM *	chkmem,
		const char *	filename,
		int	line
	)

clears a chunk block data structure

Parameters

chkmem	chunk block
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1471 of file memory.c.

References clearChkmem(), debugMessage, NULL, printError, and printErrorHeader.

◆ BMSdestroyChunkMemory_call()

void BMSdestroyChunkMemory_call	(	BMS_CHKMEM **	chkmem,
		const char *	filename,
		int	line
	)

destroys and frees a chunk block data structure

Parameters

chkmem	pointer to chunk block
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1489 of file memory.c.

References debugMessage, destroyChkmem(), NULL, printError, and printErrorHeader.

◆ BMSallocChunkMemory_call()

void* BMSallocChunkMemory_call	(	BMS_CHKMEM *	chkmem,
		size_t	size,
		const char *	filename,
		int	line
	)

allocates a memory element of the given chunk block

Parameters

chkmem	chunk block
size	size of memory element to allocate (only needed for sanity check)
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1509 of file memory.c.

References allocChkmemElement(), checkChkmem, debugMessage, NULL, printError, and printErrorHeader.

Referenced by BMSduplicateChunkMemory_call().

◆ BMSduplicateChunkMemory_call()

void* BMSduplicateChunkMemory_call	(	BMS_CHKMEM *	chkmem,
		const void *	source,
		size_t	size,
		const char *	filename,
		int	line
	)

duplicates a given memory element by allocating a new element of the same chunk block and copying the data

Parameters

chkmem	chunk block
source	source memory element
size	size of memory element to allocate (only needed for sanity check)
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1536 of file memory.c.

References BMSallocChunkMemory_call(), BMScopyMemorySize, and NULL.

◆ BMSfreeChunkMemory_call()

void BMSfreeChunkMemory_call	(	BMS_CHKMEM *	chkmem,
		void **	ptr,
		size_t	size,
		const char *	filename,
		int	line
	)

frees a memory element of the given chunk block and sets pointer to NULL

Parameters

chkmem	chunk block
ptr	pointer to pointer to memory element to free
size	size of memory element to allocate (only needed for sanity check)
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1558 of file memory.c.

References checkChkmem, debugMessage, freeChkmemElement(), NULL, printError, and printErrorHeader.

◆ BMSfreeChunkMemoryNull_call()

void BMSfreeChunkMemoryNull_call	(	BMS_CHKMEM *	chkmem,
		void **	ptr,
		size_t	size,
		const char *	filename,
		int	line
	)

frees a memory element of the given chunk block if pointer is not NULL and sets pointer to NULL

Parameters

chkmem	chunk block
ptr	pointer to pointer to memory element to free
size	size of memory element to allocate (only needed for sanity check)
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1587 of file memory.c.

References checkChkmem, debugMessage, freeChkmemElement(), and NULL.

◆ BMSgarbagecollectChunkMemory_call()

void BMSgarbagecollectChunkMemory_call ( BMS_CHKMEM * chkmem )

calls garbage collection of chunk block and frees chunks without allocated memory elements

Parameters

chkmem chunk block

Definition at line 1611 of file memory.c.

References debugMessage, garbagecollectChkmem(), and NULL.

◆ BMSgetChunkMemoryUsed_call()

long long BMSgetChunkMemoryUsed_call ( const BMS_CHKMEM * chkmem )

returns the number of allocated bytes in the chunk block

Parameters

chkmem chunk block

Definition at line 1621 of file memory.c.

References checkBlkmem, checkChkmem, CHKHASH_SIZE, and NULL.

◆ findChkmem()

static BMS_CHKMEM* findChkmem	(	const BMS_BLKMEM *	blkmem,
		const void *	ptr
	)

static

finds the chunk block, to whick the given pointer belongs to

This could be done by selecting the chunk block of the corresponding element size, but in a case of an error (free gives an incorrect element size), we want to identify and output the correct element size.

Parameters

blkmem	block memory
ptr	memory element to search

Definition at line 1685 of file memory.c.

References CHKHASH_SIZE, isPtrInChkmem(), and NULL.

Referenced by BMSgetBlockPointerSize_call().

◆ getHashNumber()

static int getHashNumber ( int size )

static

calculates hash number of memory size

Parameters

size	element size

Definition at line 1708 of file memory.c.

References BMSisAligned(), and CHKHASH_POWER.

Referenced by BMSallocBlockMemory_work(), and BMSfreeBlockMemory_work().

◆ BMScreateBlockMemory_call()

BMS_BLKMEM* BMScreateBlockMemory_call	(	int	initchunksize,
		int	garbagefactor,
		const char *	filename,
		int	line
	)

creates a block memory allocation data structure

Parameters

initchunksize	number of elements in the first chunk of each chunk block
garbagefactor	garbage collector is called, if at least garbagefactor * avg. chunksize elements are free (-1: disable garbage collection)
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1719 of file memory.c.

References BMSallocMemory, CHKHASH_SIZE, NULL, printError, and printErrorHeader.

◆ BMSclearBlockMemory_call()

void BMSclearBlockMemory_call	(	BMS_BLKMEM *	blkmem,
		const char *	filename,
		int	line
	)

frees all chunk blocks in the block memory

Parameters

blkmem	block memory
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1753 of file memory.c.

References CHKHASH_SIZE, destroyChkmem(), NULL, printError, and printErrorHeader.

Referenced by BMSdestroyBlockMemory_call().

◆ BMSdestroyBlockMemory_call()

void BMSdestroyBlockMemory_call	(	BMS_BLKMEM **	blkmem,
		const char *	filename,
		int	line
	)

clears and deletes block memory

Parameters

blkmem	pointer to block memory
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1787 of file memory.c.

References BMSclearBlockMemory_call(), BMSfreeMemory, INLINE, NULL, printError, and printErrorHeader.

◆ BMSallocBlockMemory_work()

static INLINE void* BMSallocBlockMemory_work	(	BMS_BLKMEM *	blkmem,
		size_t	size,
		const char *	filename,
		int	line
	)

static

work for allocating memory in the block memory pool

Parameters

blkmem	block memory
size	size of memory element to allocate
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1810 of file memory.c.

References allocChkmemElement(), BMSduplicateMemoryArray, checkBlkmem, createChkmem(), debugMessage, getHashNumber(), MAX, NULL, printError, and printErrorHeader.

Referenced by BMSallocBlockMemory_call(), and BMSallocBlockMemoryArray_call().

◆ BMSallocBlockMemory_call()

void* BMSallocBlockMemory_call	(	BMS_BLKMEM *	blkmem,
		size_t	size,
		const char *	filename,
		int	line
	)

allocates memory in the block memory pool

Parameters

blkmem	block memory
size	size of memory element to allocate
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1873 of file memory.c.

References BMSallocBlockMemory_work(), MAXMEMSIZE, NULL, printError, and printErrorHeader.

Referenced by BMSduplicateBlockMemory_call(), and BMSreallocBlockMemory_call().

◆ BMSallocBlockMemoryArray_call()

void* BMSallocBlockMemoryArray_call	(	BMS_BLKMEM *	blkmem,
		size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

allocates array in the block memory pool

Parameters

blkmem	block memory
num	size of array to be allocated
typesize	size of each component
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1893 of file memory.c.

References BMSallocBlockMemory_work(), MAXMEMSIZE, NULL, printError, and printErrorHeader.

Referenced by BMSallocClearBlockMemoryArray_call(), BMSduplicateBlockMemoryArray_call(), and BMSreallocBlockMemoryArray_call().

◆ BMSallocClearBlockMemoryArray_call()

void* BMSallocClearBlockMemoryArray_call	(	BMS_BLKMEM *	blkmem,
		size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

allocates array in the block memory pool and clears it

Parameters

blkmem	block memory
num	size of array to be allocated
typesize	size of each component
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1914 of file memory.c.

References BMSallocBlockMemoryArray_call(), BMSclearMemorySize, and NULL.

◆ BMSreallocBlockMemory_call()

void* BMSreallocBlockMemory_call	(	BMS_BLKMEM *	blkmem,
		void *	ptr,
		size_t	oldsize,
		size_t	newsize,
		const char *	filename,
		int	line
	)

resizes memory element in the block memory pool and copies the data

Parameters

blkmem	block memory
ptr	memory element to reallocated
oldsize	old size of memory element
newsize	new size of memory element
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1932 of file memory.c.

References BMSallocBlockMemory_call(), BMScopyMemorySize, BMSfreeBlockMemory_call(), MAXMEMSIZE, MIN, NULL, printError, and printErrorHeader.

◆ BMSreallocBlockMemoryArray_call()

void* BMSreallocBlockMemoryArray_call	(	BMS_BLKMEM *	blkmem,
		void *	ptr,
		size_t	oldnum,
		size_t	newnum,
		size_t	typesize,
		const char *	filename,
		int	line
	)

resizes array in the block memory pool and copies the data

Parameters

blkmem	block memory
ptr	memory element to reallocated
oldnum	old size of array
newnum	new size of array
typesize	size of each component
filename	source file of the function call
line	line number in source file of the function call

Definition at line 1972 of file memory.c.

References BMSallocBlockMemoryArray_call(), BMScopyMemorySize, BMSfreeBlockMemory_call(), MAXMEMSIZE, MIN, NULL, printError, and printErrorHeader.

◆ BMSduplicateBlockMemory_call()

void* BMSduplicateBlockMemory_call	(	BMS_BLKMEM *	blkmem,
		const void *	source,
		size_t	size,
		const char *	filename,
		int	line
	)

duplicates memory element in the block memory pool and copies the data

Parameters

blkmem	block memory
source	memory element to duplicate
size	size of memory elements
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2011 of file memory.c.

References BMSallocBlockMemory_call(), BMScopyMemorySize, and NULL.

◆ BMSduplicateBlockMemoryArray_call()

void* BMSduplicateBlockMemoryArray_call	(	BMS_BLKMEM *	blkmem,
		const void *	source,
		size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

duplicates array in the block memory pool and copies the data

Parameters

blkmem	block memory
source	memory element to duplicate
num	size of array to be duplicated
typesize	size of each component
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2031 of file memory.c.

References BMSallocBlockMemoryArray_call(), BMScopyMemorySize, INLINE, and NULL.

◆ BMSfreeBlockMemory_work()

static INLINE void BMSfreeBlockMemory_work	(	BMS_BLKMEM *	blkmem,
		void **	ptr,
		size_t	size,
		const char *	filename,
		int	line
	)

static

common work for freeing block memory

Parameters

blkmem	block memory
ptr	pointer to pointer to memory element to free
size	size of memory element
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2053 of file memory.c.

References checkBlkmem, debugMessage, freeChkmemElement(), getHashNumber(), MAX, NULL, printError, and printErrorHeader.

Referenced by BMSfreeBlockMemory_call(), and BMSfreeBlockMemoryNull_call().

◆ BMSfreeBlockMemory_call()

void BMSfreeBlockMemory_call	(	BMS_BLKMEM *	blkmem,
		void **	ptr,
		size_t	size,
		const char *	filename,
		int	line
	)

frees memory element in the block memory pool and sets pointer to NULL

Parameters

blkmem	block memory
ptr	pointer to pointer to memory element to free
size	size of memory element
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2101 of file memory.c.

References BMSfreeBlockMemory_work(), checkBlkmem, NULL, printError, and printErrorHeader.

Referenced by BMSreallocBlockMemory_call(), and BMSreallocBlockMemoryArray_call().

◆ BMSfreeBlockMemoryNull_call()

void BMSfreeBlockMemoryNull_call	(	BMS_BLKMEM *	blkmem,
		void **	ptr,
		size_t	size,
		const char *	filename,
		int	line
	)

frees memory element in the block memory pool if pointer is not NULL and sets pointer to NULL

Parameters

blkmem	block memory
ptr	pointer to pointer to memory element to free
size	size of memory element
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2123 of file memory.c.

References BMSfreeBlockMemory_work(), checkBlkmem, and NULL.

◆ BMSgarbagecollectBlockMemory_call()

void BMSgarbagecollectBlockMemory_call ( BMS_BLKMEM * blkmem )

calls garbage collection of block memory, frees chunks without allocated memory elements, and frees chunk blocks without any chunks

Parameters

blkmem block memory

Definition at line 2144 of file memory.c.

References checkBlkmem, CHKHASH_SIZE, destroyChkmem(), garbagecollectChkmem(), and NULL.

◆ BMSgetBlockMemoryAllocated_call()

long long BMSgetBlockMemoryAllocated_call ( const BMS_BLKMEM * blkmem )

returns the number of allocated bytes in the block memory

Parameters

blkmem block memory

Definition at line 2178 of file memory.c.

References NULL.

◆ BMSgetBlockMemoryUsed_call()

long long BMSgetBlockMemoryUsed_call ( const BMS_BLKMEM * blkmem )

returns the number of used bytes in the block memory

Parameters

blkmem block memory

Definition at line 2188 of file memory.c.

References NULL.

◆ BMSgetBlockMemoryUnused_call()

long long BMSgetBlockMemoryUnused_call ( const BMS_BLKMEM * blkmem )

returns the number of allocated but not used bytes in the block memory

Parameters

blkmem block memory

Definition at line 2198 of file memory.c.

References NULL.

◆ BMSgetBlockMemoryUsedMax_call()

long long BMSgetBlockMemoryUsedMax_call ( const BMS_BLKMEM * blkmem )

returns the maximal number of used bytes in the block memory

Parameters

blkmem block memory

Definition at line 2208 of file memory.c.

References NULL.

◆ BMSgetBlockMemoryUnusedMax_call()

long long BMSgetBlockMemoryUnusedMax_call ( const BMS_BLKMEM * blkmem )

returns the maximal number of allocated but not used bytes in the block memory

Parameters

blkmem block memory

Definition at line 2218 of file memory.c.

References NULL.

◆ BMSgetBlockMemoryAllocatedMax_call()

long long BMSgetBlockMemoryAllocatedMax_call ( const BMS_BLKMEM * blkmem )

returns the maximal number of allocated bytes in the block memory

Parameters

blkmem block memory

Definition at line 2228 of file memory.c.

References NULL.

◆ BMSgetBlockPointerSize_call()

size_t BMSgetBlockPointerSize_call	(	const BMS_BLKMEM *	blkmem,
		const void *	ptr
	)

returns the size of the given memory element; returns 0, if the element is not member of the block memory

Parameters

blkmem	block memory
ptr	memory element

Definition at line 2238 of file memory.c.

References findChkmem(), and NULL.

◆ BMSdisplayBlockMemory_call()

void BMSdisplayBlockMemory_call ( const BMS_BLKMEM * blkmem )

outputs allocation diagnostics of block memory

Parameters

blkmem block memory

Definition at line 2258 of file memory.c.

References CHKHASH_SIZE, FOR_EACH_NODE, LONGINT_FORMAT, NULL, and printInfo.

◆ BMScheckEmptyBlockMemory_call()

long long BMScheckEmptyBlockMemory_call ( const BMS_BLKMEM * blkmem )

outputs error messages, if there are allocated elements in the block memory and returns number of unfreed bytes

Parameters

blkmem block memory

Definition at line 2382 of file memory.c.

References CHKHASH_SIZE, errorMessage, FOR_EACH_NODE, LONGINT_FORMAT, and NULL.

◆ BMScreateBufferMemory_call()

BMS_BUFMEM* BMScreateBufferMemory_call	(	double	arraygrowfac,
		int	arraygrowinit,
		unsigned int	clean,
		const char *	filename,
		int	line
	)

creates memory buffer storage

Parameters

arraygrowfac	memory growing factor for dynamically allocated arrays
arraygrowinit	initial size of dynamically allocated arrays
clean	should the memory blocks in the buffer be initialized to zero?
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2476 of file memory.c.

References BMS_BufMem::arraygrowfac, BMS_BufMem::arraygrowinit, BMSallocMemory, BMS_BufMem::clean, BMS_BufMem::data, BMS_BufMem::firstfree, BMS_BufMem::ndata, NULL, printError, printErrorHeader, BMS_BufMem::size, BMS_BufMem::totalmem, and BMS_BufMem::used.

◆ BMSdestroyBufferMemory_call()

void BMSdestroyBufferMemory_call	(	BMS_BUFMEM **	buffer,
		const char *	filename,
		int	line
	)

destroys buffer memory

Parameters

buffer	pointer to memory buffer storage
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2512 of file memory.c.

References BMSfreeMemory, BMSfreeMemoryArrayNull, NULL, printError, and printErrorHeader.

◆ BMSsetBufferMemoryArraygrowfac()

void BMSsetBufferMemoryArraygrowfac	(	BMS_BUFMEM *	buffer,
		double	arraygrowfac
	)

set arraygrowfac

Parameters

buffer	pointer to memory buffer storage
arraygrowfac	memory growing factor for dynamically allocated arrays

Definition at line 2545 of file memory.c.

References BMS_BufMem::arraygrowfac, and NULL.

Referenced by SCIP_DECL_PARAMCHGD().

◆ BMSsetBufferMemoryArraygrowinit()

void BMSsetBufferMemoryArraygrowinit	(	BMS_BUFMEM *	buffer,
		int	arraygrowinit
	)

set arraygrowinit

Parameters

buffer	pointer to memory buffer storage
arraygrowinit	initial size of dynamically allocated arrays

Definition at line 2557 of file memory.c.

References BMS_BufMem::arraygrowinit, and NULL.

Referenced by SCIP_DECL_PARAMCHGD().

◆ calcMemoryGrowSize()

static size_t calcMemoryGrowSize	(	size_t	initsize,
		SCIP_Real	growfac,
		size_t	num
	)

static

calculate memory size for dynamically allocated arrays

This function is a copy of the function in set.c in order to be able to use memory.? separately.

Parameters

initsize	initial size of array
growfac	growing factor of array
num	minimum number of entries to store

Definition at line 2574 of file memory.c.

References INLINE, and MAX.

Referenced by BMSallocBufferMemory_work(), and BMSreallocBufferMemory_work().

◆ BMSallocBufferMemory_work()

static INLINE void* BMSallocBufferMemory_work	(	BMS_BUFMEM *	buffer,
		size_t	size,
		const char *	filename,
		int	line
	)

static

work for allocating the next unused buffer

Parameters

buffer	memory buffer storage
size	minimal required size of the buffer
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2616 of file memory.c.

References BMS_BufMem::arraygrowfac, BMS_BufMem::arraygrowinit, BMSallocClearMemorySize, BMSallocMemorySize, BMSclearMemorySize, BMSreallocMemoryArray, BMSreallocMemorySize, calcMemoryGrowSize(), BMS_BufMem::clean, BMS_BufMem::data, debugMessage, FALSE, BMS_BufMem::firstfree, MAX, BMS_BufMem::ndata, NULL, printError, printErrorHeader, BMS_BufMem::size, BMS_BufMem::totalmem, TRUE, and BMS_BufMem::used.

Referenced by BMSallocBufferMemory_call(), and BMSallocBufferMemoryArray_call().

◆ BMSallocBufferMemory_call()

void* BMSallocBufferMemory_call	(	BMS_BUFMEM *	buffer,
		size_t	size,
		const char *	filename,
		int	line
	)

allocates the next unused buffer

Parameters

buffer	memory buffer storage
size	minimal required size of the buffer
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2750 of file memory.c.

References BMSallocBufferMemory_work(), MAXMEMSIZE, NULL, printError, and printErrorHeader.

Referenced by BMSduplicateBufferMemory_call(), and BMSreallocBufferMemory_work().

◆ BMSallocBufferMemoryArray_call()

void* BMSallocBufferMemoryArray_call	(	BMS_BUFMEM *	buffer,
		size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

allocates the next unused buffer array

Parameters

buffer	memory buffer storage
num	size of array to be allocated
typesize	size of components
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2770 of file memory.c.

References BMSallocBufferMemory_work(), MAXMEMSIZE, NULL, printError, and printErrorHeader.

Referenced by BMSallocClearBufferMemoryArray_call(), and BMSduplicateBufferMemoryArray_call().

◆ BMSallocClearBufferMemoryArray_call()

void* BMSallocClearBufferMemoryArray_call	(	BMS_BUFMEM *	buffer,
		size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

allocates the next unused buffer and clears it

Parameters

buffer	memory buffer storage
num	size of array to be allocated
typesize	size of components
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2791 of file memory.c.

References BMSallocBufferMemoryArray_call(), BMSclearMemorySize, INLINE, and NULL.

◆ BMSreallocBufferMemory_work()

static INLINE void* BMSreallocBufferMemory_work	(	BMS_BUFMEM *	buffer,
		void *	ptr,
		size_t	size,
		const char *	filename,
		int	line
	)

static

work for reallocating the buffer to at least the given size

Parameters

buffer	memory buffer storage
ptr	pointer to the allocated memory buffer
size	minimal required size of the buffer
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2810 of file memory.c.

References BMS_BufMem::arraygrowfac, BMS_BufMem::arraygrowinit, BMSallocBufferMemory_call(), BMSreallocMemorySize, calcMemoryGrowSize(), BMS_BufMem::clean, BMS_BufMem::data, debugMessage, BMS_BufMem::firstfree, BMS_BufMem::ndata, NULL, printError, printErrorHeader, BMS_BufMem::size, BMS_BufMem::totalmem, and BMS_BufMem::used.

Referenced by BMSreallocBufferMemory_call(), and BMSreallocBufferMemoryArray_call().

◆ BMSreallocBufferMemory_call()

void* BMSreallocBufferMemory_call	(	BMS_BUFMEM *	buffer,
		void *	ptr,
		size_t	size,
		const char *	filename,
		int	line
	)

reallocates the buffer to at least the given size

Parameters

buffer	memory buffer storage
ptr	pointer to the allocated memory buffer
size	minimal required size of the buffer
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2882 of file memory.c.

References BMSreallocBufferMemory_work(), MAXMEMSIZE, NULL, printError, and printErrorHeader.

◆ BMSreallocBufferMemoryArray_call()

void* BMSreallocBufferMemoryArray_call	(	BMS_BUFMEM *	buffer,
		void *	ptr,
		size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

reallocates an array in the buffer to at least the given size

Parameters

buffer	memory buffer storage
ptr	pointer to the allocated memory buffer
num	size of array to be allocated
typesize	size of components
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2903 of file memory.c.

References BMSreallocBufferMemory_work(), MAXMEMSIZE, NULL, printError, and printErrorHeader.

◆ BMSduplicateBufferMemory_call()

void* BMSduplicateBufferMemory_call	(	BMS_BUFMEM *	buffer,
		const void *	source,
		size_t	size,
		const char *	filename,
		int	line
	)

allocates the next unused buffer and copies the given memory into the buffer

Parameters

buffer	memory buffer storage
source	memory block to copy into the buffer
size	minimal required size of the buffer
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2925 of file memory.c.

References BMSallocBufferMemory_call(), BMScopyMemorySize, and NULL.

◆ BMSduplicateBufferMemoryArray_call()

void* BMSduplicateBufferMemoryArray_call	(	BMS_BUFMEM *	buffer,
		const void *	source,
		size_t	num,
		size_t	typesize,
		const char *	filename,
		int	line
	)

allocates an array in the next unused buffer and copies the given memory into the buffer

Parameters

buffer	memory buffer storage
source	memory block to copy into the buffer
num	size of array to be allocated
typesize	size of components
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2948 of file memory.c.

References BMSallocBufferMemoryArray_call(), BMScopyMemorySize, INLINE, and NULL.

◆ BMSfreeBufferMemory_work()

static INLINE void BMSfreeBufferMemory_work	(	BMS_BUFMEM *	buffer,
		void **	ptr,
		const char *	filename,
		int	line
	)

static

work for freeing a buffer

Parameters

buffer	memory buffer storage
ptr	pointer to pointer to the allocated memory buffer
filename	source file of the function call
line	line number in source file of the function call

Definition at line 2973 of file memory.c.

References BMS_BufMem::clean, BMS_BufMem::data, debugMessage, FALSE, BMS_BufMem::firstfree, BMS_BufMem::ndata, NULL, printError, printErrorHeader, BMS_BufMem::size, BMS_BufMem::used, and warningMessage.

Referenced by BMSfreeBufferMemory_call(), and BMSfreeBufferMemoryNull_call().

◆ BMSfreeBufferMemory_call()

void BMSfreeBufferMemory_call	(	BMS_BUFMEM *	buffer,
		void **	ptr,
		const char *	filename,
		int	line
	)

frees a buffer and sets pointer to NULL

Parameters

buffer	memory buffer storage
ptr	pointer to pointer to the allocated memory buffer
filename	source file of the function call
line	line number in source file of the function call

Definition at line 3044 of file memory.c.

References BMSfreeBufferMemory_work(), BMSfreeMemory, NULL, printError, and printErrorHeader.

◆ BMSfreeBufferMemoryNull_call()

void BMSfreeBufferMemoryNull_call	(	BMS_BUFMEM *	buffer,
		void **	ptr,
		const char *	filename,
		int	line
	)

frees a buffer if pointer is not NULL and sets pointer to NULL

Parameters

buffer	memory buffer storage
ptr	pointer to pointer to the allocated memory buffer
filename	source file of the function call
line	line number in source file of the function call

Definition at line 3067 of file memory.c.

References BMSfreeBufferMemory_work(), BMSfreeMemory, and NULL.

◆ BMSgetNUsedBufferMemory()

size_t BMSgetNUsedBufferMemory ( BMS_BUFMEM * buffer )

gets number of used buffers

Parameters

buffer memory buffer storage

Definition at line 3087 of file memory.c.

References BMS_BufMem::firstfree, and NULL.

Referenced by exitPresolve(), initPresolve(), presolve(), presolveRound(), priceAndCutLoop(), propagationRound(), propAndSolve(), SCIPprimalHeuristics(), SCIPsolveCIP(), separationRoundLP(), and solveNode().

◆ BMSgetBufferMemoryUsed()

long long BMSgetBufferMemoryUsed ( const BMS_BUFMEM * buffer )

returns the number of allocated bytes in the buffer memory

Parameters

buffer buffer memory

Definition at line 3097 of file memory.c.

References BMS_BufMem::ndata, NULL, BMS_BufMem::size, and BMS_BufMem::totalmem.

Referenced by SCIPmemGetTotal(), and SCIPmemGetUsed().

◆ BMSprintBufferMemory()

void BMSprintBufferMemory ( BMS_BUFMEM * buffer )

outputs statistics about currently allocated buffers to the screen

Parameters

buffer memory buffer storage

Definition at line 3115 of file memory.c.

References BMS_BufMem::data, BMS_BufMem::ndata, NULL, BMS_BufMem::size, and BMS_BufMem::used.

Referenced by SCIPprintMemoryDiagnostic().

SCIP

Detailed Description

Data Structures

Macros

Typedefs

Functions

Macro Definition Documentation

◆ debugMessage

◆ errorMessage

◆ printErrorHeader

◆ printError

◆ warningMessage

◆ printInfo

◆ LONGINT_FORMAT

◆ MAXMEMSIZE

◆ CHKHASH_POWER

◆ CHKHASH_SIZE

◆ CHUNKLENGTH_MIN

◆ CHUNKLENGTH_MAX

◆ STORESIZE_MAX

◆ GARBAGE_SIZE

◆ ALIGNMENT

◆ CHUNK_LT

◆ CHUNK_GT

◆ checkChunk

◆ checkChkmem

◆ checkBlkmem

Typedef Documentation

◆ FREELIST

◆ CHUNK

Function Documentation

◆ BMSgetPointerSize_call()

◆ BMSdisplayMemory_call()

◆ BMScheckEmptyMemory_call()

◆ BMSgetMemoryUsed_call()

◆ BMSallocClearMemory_call()

◆ BMSallocMemory_call()

◆ BMSallocMemoryArray_call()

◆ BMSreallocMemory_call()

◆ BMSreallocMemoryArray_call()

◆ BMSclearMemory_call()

◆ BMScopyMemory_call()

◆ BMSmoveMemory_call()

◆ BMSduplicateMemory_call()

◆ BMSduplicateMemoryArray_call()

◆ BMSfreeMemory_call()

◆ BMSfreeMemoryNull_call()

◆ SCIP_DEF_RBTREE_FIND()

◆ BMSalignMemsize()

◆ BMSisAligned()

◆ isPtrInChunk()

◆ findChunk()

◆ isPtrInChkmem()

◆ linkChunk()

◆ unlinkChunk()

◆ linkEagerChunk()

◆ unlinkEagerChunk()

◆ createChunk()

◆ destroyChunk()

◆ freeChunk()

◆ allocChunkElement()

◆ freeChunkElement()

◆ createChkmem()

◆ clearChkmem()

◆ destroyChkmem()

◆ allocChkmemElement()

◆ garbagecollectChkmem()

◆ freeChkmemElement()

◆ BMScreateChunkMemory_call()

◆ BMSclearChunkMemory_call()

◆ BMSdestroyChunkMemory_call()

◆ BMSallocChunkMemory_call()

◆ BMSduplicateChunkMemory_call()

◆ BMSfreeChunkMemory_call()

◆ BMSfreeChunkMemoryNull_call()

◆ BMSgarbagecollectChunkMemory_call()

◆ BMSgetChunkMemoryUsed_call()

◆ findChkmem()

◆ getHashNumber()

◆ BMScreateBlockMemory_call()