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Reduce the size of the VdbeCursor object from 144 to 120 bytes.

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FossilOrigin-Name: 5f9d50688508affd0bc8e4d52e21dacfacdbb5ce
This commit is contained in:
drh
2013-11-20 21:51:33 +00:00
parent 380d685133
commit 14da87f8c5
5 changed files with 40 additions and 50 deletions
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26
src/vdbeInt.h
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@@ -36,7 +36,7 @@ typedef struct VdbeOp Op;
/*
** Boolean values
*/
typedef unsigned char Bool;
typedef unsigned Bool;
/* Opaque type used by code in vdbesort.c */
typedef struct VdbeSorter VdbeSorter;
@@ -63,16 +63,16 @@ struct VdbeCursor {
KeyInfo *pKeyInfo; /* Info about index keys needed by index cursors */
int pseudoTableReg; /* Register holding pseudotable content. */
i16 nField; /* Number of fields in the header */
u16 nHdrParsed; /* Number of header fields parsed so far */
i8 iDb; /* Index of cursor database in db->aDb[] (or -1) */
Bool rowidIsValid; /* True if lastRowid is valid */
Bool useRandomRowid; /* Generate new record numbers semi-randomly */
Bool nullRow; /* True if pointing to a row with no data */
Bool deferredMoveto; /* A call to sqlite3BtreeMoveto() is needed */
Bool isTable; /* True if a table requiring integer keys */
Bool isIndex; /* True if an index containing keys only - no data */
Bool isOrdered; /* True if the underlying table is BTREE_UNORDERED */
Bool isSorter; /* True if a new-style sorter */
Bool multiPseudo; /* Multi-register pseudo-cursor */
i8 seekResult; /* Result of previous sqlite3BtreeMoveto() */
Bool nullRow:1; /* True if pointing to a row with no data */
Bool rowidIsValid :1; /* True if lastRowid is valid */
Bool useRandomRowid:1;/* Generate new record numbers semi-randomly */
Bool deferredMoveto:1;/* A call to sqlite3BtreeMoveto() is needed */
Bool isTable:1; /* True if a table requiring integer keys */
Bool isOrdered:1; /* True if the underlying table is BTREE_UNORDERED */
Bool multiPseudo:1; /* Multi-register pseudo-cursor */
sqlite3_vtab_cursor *pVtabCursor; /* The cursor for a virtual table */
const sqlite3_module *pModule; /* Module for cursor pVtabCursor */
i64 seqCount; /* Sequence counter */
@@ -80,9 +80,6 @@ struct VdbeCursor {
i64 lastRowid; /* Rowid being deleted by OP_Delete */
VdbeSorter *pSorter; /* Sorter object for OP_SorterOpen cursors */
/* Result of last sqlite3BtreeMoveto() done by an OP_NotExists */
int seekResult;
/* Cached information about the header for the data record that the
** cursor is currently pointing to. Only valid if cacheStatus matches
** Vdbe.cacheCtr. Vdbe.cacheCtr will never take on the value of
@@ -94,12 +91,9 @@ struct VdbeCursor {
*/
u32 cacheStatus; /* Cache is valid if this matches Vdbe.cacheCtr */
u32 payloadSize; /* Total number of bytes in the record */
u16 nHdrParsed; /* Number of header fields parsed so far */
u16 nFieldPresent; /* Number of fields in the record */
u32 szRow; /* Byte available in aRow */
u32 iHdrOffset; /* Offset to next unparsed byte of the header */
u32 *aType; /* Type values for all entries in the record */
u32 *aOffset; /* Cached offsets to the start of each columns data */
const u8 *aRow; /* Data for the current row, if all on one page */
};
typedef struct VdbeCursor VdbeCursor;