diff options
Diffstat (limited to 'storage/innobase/include/rem0rec.ic')
| -rw-r--r-- | storage/innobase/include/rem0rec.ic | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/storage/innobase/include/rem0rec.ic b/storage/innobase/include/rem0rec.ic index df66bb13aeb..566c62e30f2 100644 --- a/storage/innobase/include/rem0rec.ic +++ b/storage/innobase/include/rem0rec.ic @@ -9,6 +9,7 @@ Created 5/30/1994 Heikki Tuuri #include "mach0data.h" #include "ut0byte.h" #include "dict0dict.h" +#include "btr0types.h" /* Compact flag ORed to the extra size returned by rec_get_offsets() */ #define REC_OFFS_COMPACT ((ulint) 1 << 31) @@ -1020,6 +1021,42 @@ rec_offs_any_extern( return(FALSE); } +#if defined UNIV_DEBUG || defined UNIV_BLOB_LIGHT_DEBUG +/******************************************************** +Determine if the offsets are for a record containing null BLOB pointers. */ +UNIV_INLINE +const byte* +rec_offs_any_null_extern( +/*=====================*/ + /* out: first field containing + a null BLOB pointer, + or NULL if none found */ + rec_t* rec, /*!< in: record */ + const ulint* offsets) /*!< in: rec_get_offsets(rec) */ +{ + ulint i; + ut_ad(rec_offs_validate(rec, NULL, offsets)); + + for (i = 0; i < rec_offs_n_fields(offsets); i++) { + if (rec_offs_nth_extern(offsets, i)) { + ulint len; + const byte* field + = rec_get_nth_field(rec, offsets, i, &len); + + ut_a(len >= BTR_EXTERN_FIELD_REF_SIZE); + if (!memcmp(field + len + - BTR_EXTERN_FIELD_REF_SIZE, + field_ref_zero, + BTR_EXTERN_FIELD_REF_SIZE)) { + return(field); + } + } + } + + return(NULL); +} +#endif /* UNIV_DEBUG || UNIV_BLOB_LIGHT_DEBUG */ + /*************************************************************** Sets the value of the ith field extern storage bit. */ UNIV_INLINE |