diff options
Diffstat (limited to 'src/include/postgres.h')
| -rw-r--r-- | src/include/postgres.h | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/src/include/postgres.h b/src/include/postgres.h index 52a979545d..00c92e7822 100644 --- a/src/include/postgres.h +++ b/src/include/postgres.h @@ -56,12 +56,13 @@ /* ---------------- * struct varattrib is the header of a varlena object that may have been - * TOASTed. + * TOASTed. Generally, only the code closely associated with TOAST logic + * should mess directly with struct varattrib or use the VARATT_FOO macros. * ---------------- */ typedef struct varattrib { - int32 va_header; /* External/compressed storage */ + int32 va_header_; /* External/compressed storage */ /* flags and item size */ union { @@ -88,20 +89,21 @@ typedef struct varattrib #define VARATT_MASK_FLAGS 0xc0000000 #define VARATT_MASK_SIZE 0x3fffffff -#define VARATT_SIZEP(_PTR) (((varattrib *)(_PTR))->va_header) -#define VARATT_SIZE(PTR) (VARATT_SIZEP(PTR) & VARATT_MASK_SIZE) -#define VARATT_DATA(PTR) (((varattrib *)(PTR))->va_content.va_data) -#define VARATT_CDATA(PTR) (((varattrib *)(PTR))->va_content.va_compressed.va_data) - -#define VARSIZE(__PTR) VARATT_SIZE(__PTR) -#define VARDATA(__PTR) VARATT_DATA(__PTR) +#define VARATT_SIZEP_DEPRECATED(PTR) (((varattrib *) (PTR))->va_header_) #define VARATT_IS_EXTENDED(PTR) \ - ((VARATT_SIZEP(PTR) & VARATT_MASK_FLAGS) != 0) + ((VARATT_SIZEP_DEPRECATED(PTR) & VARATT_MASK_FLAGS) != 0) #define VARATT_IS_EXTERNAL(PTR) \ - ((VARATT_SIZEP(PTR) & VARATT_FLAG_EXTERNAL) != 0) + ((VARATT_SIZEP_DEPRECATED(PTR) & VARATT_FLAG_EXTERNAL) != 0) #define VARATT_IS_COMPRESSED(PTR) \ - ((VARATT_SIZEP(PTR) & VARATT_FLAG_COMPRESSED) != 0) + ((VARATT_SIZEP_DEPRECATED(PTR) & VARATT_FLAG_COMPRESSED) != 0) + +/* These macros are the ones for non-TOAST code to use */ + +#define VARSIZE(PTR) (VARATT_SIZEP_DEPRECATED(PTR) & VARATT_MASK_SIZE) +#define VARDATA(PTR) (((varattrib *) (PTR))->va_content.va_data) + +#define SET_VARSIZE(PTR,SIZE) (VARATT_SIZEP_DEPRECATED(PTR) = (SIZE)) /* ---------------------------------------------------------------- |