diff options
Diffstat (limited to 'src/sqliteInt.h')
| -rw-r--r-- | src/sqliteInt.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/sqliteInt.h b/src/sqliteInt.h index b370fe071..d6b150630 100644 --- a/src/sqliteInt.h +++ b/src/sqliteInt.h @@ -11,7 +11,7 @@ ************************************************************************* ** Internal interface definitions for SQLite. ** -** @(#) $Id: sqliteInt.h,v 1.879 2009/05/30 14:16:32 drh Exp $ +** @(#) $Id: sqliteInt.h,v 1.880 2009/06/01 18:18:21 drh Exp $ */ #ifndef _SQLITEINT_H_ #define _SQLITEINT_H_ @@ -475,6 +475,7 @@ extern const int sqlite3one; */ #define EIGHT_BYTE_ALIGNMENT(X) ((((char*)(X) - (char*)0)&7)==0) + /* ** An instance of the following structure is used to store the busy-handler ** callback for a given sqlite handle. @@ -2360,6 +2361,24 @@ void sqlite3MemSetDefault(void); void sqlite3BenignMallocHooks(void (*)(void), void (*)(void)); int sqlite3MemoryAlarm(void (*)(void*, sqlite3_int64, int), void*, sqlite3_int64); +/* +** On systems with ample stack space and that support alloca(), make +** use of alloca() to obtain space for large automatic objects. By default, +** obtain space from malloc(). +** +** The alloca() routine never returns NULL. This will cause code paths +** that deal with sqlite3StackAlloc() failures to be unreachable. +*/ +#ifdef SQLITE_USE_ALLOCA +# define sqlite3StackAllocRaw(D,N) alloca(N) +# define sqlite3StackAllocZero(D,N) memset(alloca(N), 0, N) +# define sqlite3StackFree(D,P) +#else +# define sqlite3StackAllocRaw(D,N) sqlite3DbMallocRaw(D,N) +# define sqlite3StackAllocZero(D,N) sqlite3DbMallocZero(D,N) +# define sqlite3StackFree(D,P) sqlite3DbFree(D,P) +#endif + #ifdef SQLITE_ENABLE_MEMSYS3 const sqlite3_mem_methods *sqlite3MemGetMemsys3(void); #endif |