| /* |
| ** 2008 October 28 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ************************************************************************* |
| ** |
| ** This file contains a no-op memory allocation drivers for use when |
| ** SQLITE_ZERO_MALLOC is defined. The allocation drivers implemented |
| ** here always fail. SQLite will not operate with these drivers. These |
| ** are merely placeholders. Real drivers must be substituted using |
| ** sqlite3_config() before SQLite will operate. |
| */ |
| #include "sqliteInt.h" |
| |
| /* |
| ** This version of the memory allocator is the default. It is |
| ** used when no other memory allocator is specified using compile-time |
| ** macros. |
| */ |
| #ifdef SQLITE_ZERO_MALLOC |
| |
| /* |
| ** No-op versions of all memory allocation routines |
| */ |
| static void *sqlite3MemMalloc(int nByte){ return 0; } |
| static void sqlite3MemFree(void *pPrior){ return; } |
| static void *sqlite3MemRealloc(void *pPrior, int nByte){ return 0; } |
| static int sqlite3MemSize(void *pPrior){ return 0; } |
| static int sqlite3MemRoundup(int n){ return n; } |
| static int sqlite3MemInit(void *NotUsed){ return SQLITE_OK; } |
| static void sqlite3MemShutdown(void *NotUsed){ return; } |
| |
| /* |
| ** This routine is the only routine in this file with external linkage. |
| ** |
| ** Populate the low-level memory allocation function pointers in |
| ** sqlite3GlobalConfig.m with pointers to the routines in this file. |
| */ |
| void sqlite3MemSetDefault(void){ |
| static const sqlite3_mem_methods defaultMethods = { |
| sqlite3MemMalloc, |
| sqlite3MemFree, |
| sqlite3MemRealloc, |
| sqlite3MemSize, |
| sqlite3MemRoundup, |
| sqlite3MemInit, |
| sqlite3MemShutdown, |
| 0 |
| }; |
| sqlite3_config(SQLITE_CONFIG_MALLOC, &defaultMethods); |
| } |
| |
| #endif /* SQLITE_ZERO_MALLOC */ |