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Change mem5.c so that the minimum allocation size is runtime configurable. (CVS 5320)

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FossilOrigin-Name: 4f95f4cdf77e134fab42148e10198c7b008d4ae6
This commit is contained in:
danielk1977
2008-06-27 13:27:03 +00:00
parent 6fccc35a91
commit 5099be5e85
7 changed files with 211 additions and 121 deletions
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41
src/main.c
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@@ -14,7 +14,7 @@
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.465 2008/06/26 10:54:12 danielk1977 Exp $
** $Id: main.c,v 1.466 2008/06/27 13:27:04 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@@ -175,22 +175,6 @@ int sqlite3_config(int op, ...){
sqlite3Config.bFullMutex = 1;
break;
}
#ifdef SQLITE_ENABLE_MEMSYS3
case SQLITE_CONFIG_MEMSYS3: {
u8 *pMem = va_arg(ap, u8*);
int nMem = va_arg(ap, int);
sqlite3MemSetMemsys3(pMem, nMem);
break;
}
#endif
#ifdef SQLITE_ENABLE_MEMSYS5
case SQLITE_CONFIG_MEMSYS5: {
u8 *pMem = va_arg(ap, u8*);
int nMem = va_arg(ap, int);
sqlite3MemSetMemsys5(pMem, nMem);
break;
}
#endif
case SQLITE_CONFIG_MALLOC: {
/* Specify an alternative malloc implementation */
sqlite3Config.m = *va_arg(ap, sqlite3_mem_methods*);
@@ -231,13 +215,34 @@ int sqlite3_config(int op, ...){
sqlite3Config.nPage = va_arg(ap, int);
break;
}
case SQLITE_CONFIG_HEAP: {
/* Designate a buffer for scratch memory space */
/* Designate a buffer for heap memory space */
sqlite3Config.pHeap = va_arg(ap, void*);
sqlite3Config.nHeap = va_arg(ap, int);
sqlite3Config.mnReq = va_arg(ap, int);
/* Fall through to install the mem5.c/mem3.c methods. If neither
** ENABLE_MEMSYS3 nor ENABLE_MEMSYS5 is defined, fall through to
** the default case and return an error.
*/
}
#ifdef SQLITE_ENABLE_MEMSYS5
case SQLITE_CONFIG_MEMSYS5: {
sqlite3_mem_methods *p = sqlite3MemGetMemsys5();
sqlite3Config.m = *p;
break;
}
#endif
#ifdef SQLITE_ENABLE_MEMSYS3
case SQLITE_CONFIG_MEMSYS3: {
sqlite3_mem_methods *p = sqlite3MemGetMemsys3();
sqlite3Config.m = *p;
break;
}
#endif
default: {
rc = SQLITE_ERROR;
break;