Lines Matching defs:guard
42 MAX_GUARD_BYTES = 8, /* size of guard areas on either side of a block */
53 byte_t guard[MAX_GUARD_BYTES]; /* guard area for underrun check */
58 byte_t guard[MAX_GUARD_BYTES]; /* guard area overrun check */
136 DASSERTMSG( DMem_VerifyGuardArea(header->guard), "Header corruption, possible underwrite" );
144 DASSERTMSG( DMem_VerifyGuardArea(tail->guard), "Tail corruption, possible overwrite" );
196 * 'guard' areas to catch overwrite/underwrite bugs
238 /* put guard area before block */
239 memset(header->guard, ByteGuard, MAX_GUARD_BYTES);
240 /* put guard area after block */
242 memset(tail->guard, ByteGuard, MAX_GUARD_BYTES);