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Continuing progress on the new memory allocation subsystem. Added the

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sqlite3_mem_methods structure for defining new memory allocators at
run-time. (CVS 5219)

FossilOrigin-Name: f00305f4cd2f487f660f34a21c1c24a0b37c7275
This commit is contained in:
drh
2008-06-14 16:56:21 +00:00
parent 40257ffd0a
commit fec00eabb3
10 changed files with 559 additions and 447 deletions
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24
src/sqliteInt.h
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@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.708 2008/06/13 18:24:27 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.709 2008/06/14 16:56:23 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
@@ -1735,18 +1735,14 @@ typedef struct {
** Structure containing global configuration data for the SQLite library.
*/
struct Sqlite3Config {
void *(*xMalloc)(int); /* Low-level malloc() */
void *(*xRealloc)(void*,int); /* Low-level realloc() */
void (*xFree)(void*); /* Low-level free() */
int (*xMemsize)(void*); /* Return size of an allocation */
int (*xRoundup)(int); /* Size of allocation given request */
int bMemstat; /* True to enable memory status */
int bCoreMutex; /* True to enable core mutexing */
int bFullMutex; /* True to enable full mutexing */
sqlite3_mem_methods m; /* Low-level memory allocation interface */
void *pHeap; /* Heap storage space */
sqlite3_int64 nHeap; /* Size of pHeap[] */
int mnReq, mxReq; /* Min and max memory request sizes */
int nTemp; /* Part of pHeap for temporary allos */
int bMemstat; /* True to enable memory status */
int bCoreMutex; /* True to enable core mutexing */
int bFullMutex; /* True to enable full mutexing */
};
/*
@@ -1782,16 +1778,20 @@ int sqlite3StrNICmp(const char *, const char *, int);
int sqlite3IsNumber(const char*, int*, u8);
int sqlite3MallocInit(void);
void *sqlite3MallocZero(unsigned);
void *sqlite3DbMallocZero(sqlite3*, unsigned);
void *sqlite3DbMallocRaw(sqlite3*, unsigned);
void sqlite3MallocEnd(void);
void *sqlite3Malloc(int);
void *sqlite3MallocZero(int);
void *sqlite3DbMallocZero(sqlite3*, int);
void *sqlite3DbMallocRaw(sqlite3*, int);
char *sqlite3StrDup(const char*);
char *sqlite3StrNDup(const char*, int);
char *sqlite3DbStrDup(sqlite3*,const char*);
char *sqlite3DbStrNDup(sqlite3*,const char*, int);
void *sqlite3Realloc(void*, int);
void *sqlite3DbReallocOrFree(sqlite3 *, void *, int);
void *sqlite3DbRealloc(sqlite3 *, void *, int);
int sqlite3MallocSize(void *);
void sqlite3MemSetDefault(void);
int sqlite3IsNaN(double);