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Overview
| Comment: | Add support for rowid. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | word-fuzzer |
| Files: | files | file ages | folders |
| SHA1: |
2cf4158ff051916717fc2c0f4b6332d5 |
| User & Date: | drh 2011-03-29 23:41:31 |
Context
|
2011-03-30
| ||
| 01:43 | Move to an O(NlogN) algorithm for the priority queue. An insertion sort was way too slow. (check-in: 7958cbba user: drh tags: word-fuzzer) | |
|
2011-03-29
| ||
| 23:41 | Add support for rowid. (check-in: 2cf4158f user: drh tags: word-fuzzer) | |
| 18:21 | The first simple test-case appears to be working now. (check-in: dd41155b user: drh tags: word-fuzzer) | |
Changes
Changes to src/test_fuzzer.c.
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};
#define FUZZER_HASH 4001 /* Hash table size */
/* A fuzzer cursor object */
struct fuzzer_cursor {
sqlite3_vtab_cursor base; /* Base class - must be first */
fuzzer_vtab *pVtab; /* The virtual table this cursor belongs to */
fuzzer_cost rLimit; /* Maximum cost of any term */
fuzzer_stem *pStem; /* Sorted list of stems for generating new terms */
fuzzer_stem *pDone; /* Stems already processed to completion */
char *zBuf; /* Temporary use buffer */
int nBuf; /* Bytes allocated for zBuf */
fuzzer_rule nullRule; /* Null rule used first */
................................................................................
/*
** Advance a cursor to its next row of output
*/
static int fuzzerNext(sqlite3_vtab_cursor *cur){
fuzzer_cursor *pCur = (fuzzer_cursor*)cur;
int rc;
fuzzer_stem *pStem, *pNew;
/* Use the element the cursor is currently point to to create
** a new stem and insert the new stem into the priority queue.
*/
pStem = pCur->pStem;
if( fuzzerCost(pStem)>0 ){
rc = fuzzerRender(pStem, &pCur->zBuf, &pCur->nBuf);
................................................................................
pCur->nullRule.pNext = pCur->pVtab->pRule;
pCur->nullRule.rCost = 0;
pCur->nullRule.nFrom = 0;
pCur->nullRule.nTo = 0;
pCur->nullRule.zFrom = "";
pStem->pRule = &pCur->nullRule;
pStem->n = pStem->nBasis;
return SQLITE_OK;
}
/*
** Only the word and distance columns have values. All other columns
** return NULL
*/
................................................................................
/* All other columns are NULL */
sqlite3_result_null(ctx);
}
return SQLITE_OK;
}
/*
** The rowid is always 0
*/
static int fuzzerRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
*pRowid = 0; /* The rowid is always 0 */
return SQLITE_OK;
}
/*
** When the fuzzer_cursor.rLimit value is 0 or less, that is a signal
** that the cursor has nothing more to output.
*/
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};
#define FUZZER_HASH 4001 /* Hash table size */
/* A fuzzer cursor object */
struct fuzzer_cursor {
sqlite3_vtab_cursor base; /* Base class - must be first */
sqlite3_int64 iRowid; /* The rowid of the current word */
fuzzer_vtab *pVtab; /* The virtual table this cursor belongs to */
fuzzer_cost rLimit; /* Maximum cost of any term */
fuzzer_stem *pStem; /* Sorted list of stems for generating new terms */
fuzzer_stem *pDone; /* Stems already processed to completion */
char *zBuf; /* Temporary use buffer */
int nBuf; /* Bytes allocated for zBuf */
fuzzer_rule nullRule; /* Null rule used first */
................................................................................
/*
** Advance a cursor to its next row of output
*/
static int fuzzerNext(sqlite3_vtab_cursor *cur){
fuzzer_cursor *pCur = (fuzzer_cursor*)cur;
int rc;
fuzzer_stem *pStem, *pNew;
pCur->iRowid++;
/* Use the element the cursor is currently point to to create
** a new stem and insert the new stem into the priority queue.
*/
pStem = pCur->pStem;
if( fuzzerCost(pStem)>0 ){
rc = fuzzerRender(pStem, &pCur->zBuf, &pCur->nBuf);
................................................................................
pCur->nullRule.pNext = pCur->pVtab->pRule;
pCur->nullRule.rCost = 0;
pCur->nullRule.nFrom = 0;
pCur->nullRule.nTo = 0;
pCur->nullRule.zFrom = "";
pStem->pRule = &pCur->nullRule;
pStem->n = pStem->nBasis;
pCur->iRowid = 1;
return SQLITE_OK;
}
/*
** Only the word and distance columns have values. All other columns
** return NULL
*/
................................................................................
/* All other columns are NULL */
sqlite3_result_null(ctx);
}
return SQLITE_OK;
}
/*
** The rowid.
*/
static int fuzzerRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
fuzzer_cursor *pCur = (fuzzer_cursor*)cur;
*pRowid = pCur->iRowid;
return SQLITE_OK;
}
/*
** When the fuzzer_cursor.rLimit value is 0 or less, that is a signal
** that the cursor has nothing more to output.
*/
|
tool/mkopts.tcl became executable.