| Index: third_party/sqlite/src/src/test_stat.c
|
| diff --git a/third_party/sqlite/src/src/test_stat.c b/third_party/sqlite/src/src/test_stat.c
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..c85463e52657d712d07684c72b64406972a9b250
|
| --- /dev/null
|
| +++ b/third_party/sqlite/src/src/test_stat.c
|
| @@ -0,0 +1,607 @@
|
| +/*
|
| +** 2010 July 12
|
| +**
|
| +** The author disclaims copyright to this source code. In place of
|
| +** a legal notice, here is a blessing:
|
| +**
|
| +** May you do good and not evil.
|
| +** May you find forgiveness for yourself and forgive others.
|
| +** May you share freely, never taking more than you give.
|
| +**
|
| +******************************************************************************
|
| +**
|
| +** This file contains an implementation of the "dbstat" virtual table.
|
| +**
|
| +** The dbstat virtual table is used to extract low-level formatting
|
| +** information from an SQLite database in order to implement the
|
| +** "sqlite3_analyzer" utility. See the ../tool/spaceanal.tcl script
|
| +** for an example implementation.
|
| +*/
|
| +
|
| +#include "sqliteInt.h"
|
| +
|
| +#ifndef SQLITE_OMIT_VIRTUALTABLE
|
| +
|
| +/*
|
| +** Page paths:
|
| +**
|
| +** The value of the 'path' column describes the path taken from the
|
| +** root-node of the b-tree structure to each page. The value of the
|
| +** root-node path is '/'.
|
| +**
|
| +** The value of the path for the left-most child page of the root of
|
| +** a b-tree is '/000/'. (Btrees store content ordered from left to right
|
| +** so the pages to the left have smaller keys than the pages to the right.)
|
| +** The next to left-most child of the root page is
|
| +** '/001', and so on, each sibling page identified by a 3-digit hex
|
| +** value. The children of the 451st left-most sibling have paths such
|
| +** as '/1c2/000/, '/1c2/001/' etc.
|
| +**
|
| +** Overflow pages are specified by appending a '+' character and a
|
| +** six-digit hexadecimal value to the path to the cell they are linked
|
| +** from. For example, the three overflow pages in a chain linked from
|
| +** the left-most cell of the 450th child of the root page are identified
|
| +** by the paths:
|
| +**
|
| +** '/1c2/000+000000' // First page in overflow chain
|
| +** '/1c2/000+000001' // Second page in overflow chain
|
| +** '/1c2/000+000002' // Third page in overflow chain
|
| +**
|
| +** If the paths are sorted using the BINARY collation sequence, then
|
| +** the overflow pages associated with a cell will appear earlier in the
|
| +** sort-order than its child page:
|
| +**
|
| +** '/1c2/000/' // Left-most child of 451st child of root
|
| +*/
|
| +#define VTAB_SCHEMA \
|
| + "CREATE TABLE xx( " \
|
| + " name STRING, /* Name of table or index */" \
|
| + " path INTEGER, /* Path to page from root */" \
|
| + " pageno INTEGER, /* Page number */" \
|
| + " pagetype STRING, /* 'internal', 'leaf' or 'overflow' */" \
|
| + " ncell INTEGER, /* Cells on page (0 for overflow) */" \
|
| + " payload INTEGER, /* Bytes of payload on this page */" \
|
| + " unused INTEGER, /* Bytes of unused space on this page */" \
|
| + " mx_payload INTEGER /* Largest payload size of all cells */" \
|
| + ");"
|
| +
|
| +#if 0
|
| +#define VTAB_SCHEMA2 \
|
| + "CREATE TABLE yy( " \
|
| + " pageno INTEGER, /* B-tree page number */" \
|
| + " cellno INTEGER, /* Cell number within page */" \
|
| + " local INTEGER, /* Bytes of content stored locally */" \
|
| + " payload INTEGER, /* Total cell payload size */" \
|
| + " novfl INTEGER /* Number of overflow pages */" \
|
| + ");"
|
| +#endif
|
| +
|
| +
|
| +typedef struct StatTable StatTable;
|
| +typedef struct StatCursor StatCursor;
|
| +typedef struct StatPage StatPage;
|
| +typedef struct StatCell StatCell;
|
| +
|
| +struct StatCell {
|
| + int nLocal; /* Bytes of local payload */
|
| + u32 iChildPg; /* Child node (or 0 if this is a leaf) */
|
| + int nOvfl; /* Entries in aOvfl[] */
|
| + u32 *aOvfl; /* Array of overflow page numbers */
|
| + int nLastOvfl; /* Bytes of payload on final overflow page */
|
| + int iOvfl; /* Iterates through aOvfl[] */
|
| +};
|
| +
|
| +struct StatPage {
|
| + u32 iPgno;
|
| + DbPage *pPg;
|
| + int iCell;
|
| +
|
| + char *zPath; /* Path to this page */
|
| +
|
| + /* Variables populated by statDecodePage(): */
|
| + u8 flags; /* Copy of flags byte */
|
| + int nCell; /* Number of cells on page */
|
| + int nUnused; /* Number of unused bytes on page */
|
| + StatCell *aCell; /* Array of parsed cells */
|
| + u32 iRightChildPg; /* Right-child page number (or 0) */
|
| + int nMxPayload; /* Largest payload of any cell on this page */
|
| +};
|
| +
|
| +struct StatCursor {
|
| + sqlite3_vtab_cursor base;
|
| + sqlite3_stmt *pStmt; /* Iterates through set of root pages */
|
| + int isEof; /* After pStmt has returned SQLITE_DONE */
|
| +
|
| + StatPage aPage[32];
|
| + int iPage; /* Current entry in aPage[] */
|
| +
|
| + /* Values to return. */
|
| + char *zName; /* Value of 'name' column */
|
| + char *zPath; /* Value of 'path' column */
|
| + u32 iPageno; /* Value of 'pageno' column */
|
| + char *zPagetype; /* Value of 'pagetype' column */
|
| + int nCell; /* Value of 'ncell' column */
|
| + int nPayload; /* Value of 'payload' column */
|
| + int nUnused; /* Value of 'unused' column */
|
| + int nMxPayload; /* Value of 'mx_payload' column */
|
| +};
|
| +
|
| +struct StatTable {
|
| + sqlite3_vtab base;
|
| + sqlite3 *db;
|
| +};
|
| +
|
| +#ifndef get2byte
|
| +# define get2byte(x) ((x)[0]<<8 | (x)[1])
|
| +#endif
|
| +
|
| +/*
|
| +** Connect to or create a statvfs virtual table.
|
| +*/
|
| +static int statConnect(
|
| + sqlite3 *db,
|
| + void *pAux,
|
| + int argc, const char *const*argv,
|
| + sqlite3_vtab **ppVtab,
|
| + char **pzErr
|
| +){
|
| + StatTable *pTab;
|
| +
|
| + pTab = (StatTable *)sqlite3_malloc(sizeof(StatTable));
|
| + memset(pTab, 0, sizeof(StatTable));
|
| + pTab->db = db;
|
| +
|
| + sqlite3_declare_vtab(db, VTAB_SCHEMA);
|
| + *ppVtab = &pTab->base;
|
| + return SQLITE_OK;
|
| +}
|
| +
|
| +/*
|
| +** Disconnect from or destroy a statvfs virtual table.
|
| +*/
|
| +static int statDisconnect(sqlite3_vtab *pVtab){
|
| + sqlite3_free(pVtab);
|
| + return SQLITE_OK;
|
| +}
|
| +
|
| +/*
|
| +** There is no "best-index". This virtual table always does a linear
|
| +** scan of the binary VFS log file.
|
| +*/
|
| +static int statBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
|
| +
|
| + /* Records are always returned in ascending order of (name, path).
|
| + ** If this will satisfy the client, set the orderByConsumed flag so that
|
| + ** SQLite does not do an external sort.
|
| + */
|
| + if( ( pIdxInfo->nOrderBy==1
|
| + && pIdxInfo->aOrderBy[0].iColumn==0
|
| + && pIdxInfo->aOrderBy[0].desc==0
|
| + ) ||
|
| + ( pIdxInfo->nOrderBy==2
|
| + && pIdxInfo->aOrderBy[0].iColumn==0
|
| + && pIdxInfo->aOrderBy[0].desc==0
|
| + && pIdxInfo->aOrderBy[1].iColumn==1
|
| + && pIdxInfo->aOrderBy[1].desc==0
|
| + )
|
| + ){
|
| + pIdxInfo->orderByConsumed = 1;
|
| + }
|
| +
|
| + pIdxInfo->estimatedCost = 10.0;
|
| + return SQLITE_OK;
|
| +}
|
| +
|
| +/*
|
| +** Open a new statvfs cursor.
|
| +*/
|
| +static int statOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
|
| + StatTable *pTab = (StatTable *)pVTab;
|
| + StatCursor *pCsr;
|
| + int rc;
|
| +
|
| + pCsr = (StatCursor *)sqlite3_malloc(sizeof(StatCursor));
|
| + memset(pCsr, 0, sizeof(StatCursor));
|
| + pCsr->base.pVtab = pVTab;
|
| +
|
| + rc = sqlite3_prepare_v2(pTab->db,
|
| + "SELECT 'sqlite_master' AS name, 1 AS rootpage, 'table' AS type"
|
| + " UNION ALL "
|
| + "SELECT name, rootpage, type FROM sqlite_master WHERE rootpage!=0"
|
| + " ORDER BY name", -1,
|
| + &pCsr->pStmt, 0
|
| + );
|
| + if( rc!=SQLITE_OK ){
|
| + sqlite3_free(pCsr);
|
| + return rc;
|
| + }
|
| +
|
| + *ppCursor = (sqlite3_vtab_cursor *)pCsr;
|
| + return SQLITE_OK;
|
| +}
|
| +
|
| +static void statClearPage(StatPage *p){
|
| + int i;
|
| + for(i=0; i<p->nCell; i++){
|
| + sqlite3_free(p->aCell[i].aOvfl);
|
| + }
|
| + sqlite3PagerUnref(p->pPg);
|
| + sqlite3_free(p->aCell);
|
| + sqlite3_free(p->zPath);
|
| + memset(p, 0, sizeof(StatPage));
|
| +}
|
| +
|
| +static void statResetCsr(StatCursor *pCsr){
|
| + int i;
|
| + sqlite3_reset(pCsr->pStmt);
|
| + for(i=0; i<ArraySize(pCsr->aPage); i++){
|
| + statClearPage(&pCsr->aPage[i]);
|
| + }
|
| + pCsr->iPage = 0;
|
| + sqlite3_free(pCsr->zPath);
|
| + pCsr->zPath = 0;
|
| +}
|
| +
|
| +/*
|
| +** Close a statvfs cursor.
|
| +*/
|
| +static int statClose(sqlite3_vtab_cursor *pCursor){
|
| + StatCursor *pCsr = (StatCursor *)pCursor;
|
| + statResetCsr(pCsr);
|
| + sqlite3_finalize(pCsr->pStmt);
|
| + sqlite3_free(pCsr);
|
| + return SQLITE_OK;
|
| +}
|
| +
|
| +static void getLocalPayload(
|
| + int nUsable, /* Usable bytes per page */
|
| + u8 flags, /* Page flags */
|
| + int nTotal, /* Total record (payload) size */
|
| + int *pnLocal /* OUT: Bytes stored locally */
|
| +){
|
| + int nLocal;
|
| + int nMinLocal;
|
| + int nMaxLocal;
|
| +
|
| + if( flags==0x0D ){ /* Table leaf node */
|
| + nMinLocal = (nUsable - 12) * 32 / 255 - 23;
|
| + nMaxLocal = nUsable - 35;
|
| + }else{ /* Index interior and leaf nodes */
|
| + nMinLocal = (nUsable - 12) * 32 / 255 - 23;
|
| + nMaxLocal = (nUsable - 12) * 64 / 255 - 23;
|
| + }
|
| +
|
| + nLocal = nMinLocal + (nTotal - nMinLocal) % (nUsable - 4);
|
| + if( nLocal>nMaxLocal ) nLocal = nMinLocal;
|
| + *pnLocal = nLocal;
|
| +}
|
| +
|
| +static int statDecodePage(Btree *pBt, StatPage *p){
|
| + int nUnused;
|
| + int iOff;
|
| + int nHdr;
|
| + int isLeaf;
|
| +
|
| + u8 *aData = sqlite3PagerGetData(p->pPg);
|
| + u8 *aHdr = &aData[p->iPgno==1 ? 100 : 0];
|
| +
|
| + p->flags = aHdr[0];
|
| + p->nCell = get2byte(&aHdr[3]);
|
| + p->nMxPayload = 0;
|
| +
|
| + isLeaf = (p->flags==0x0A || p->flags==0x0D);
|
| + nHdr = 12 - isLeaf*4 + (p->iPgno==1)*100;
|
| +
|
| + nUnused = get2byte(&aHdr[5]) - nHdr - 2*p->nCell;
|
| + nUnused += (int)aHdr[7];
|
| + iOff = get2byte(&aHdr[1]);
|
| + while( iOff ){
|
| + nUnused += get2byte(&aData[iOff+2]);
|
| + iOff = get2byte(&aData[iOff]);
|
| + }
|
| + p->nUnused = nUnused;
|
| + p->iRightChildPg = isLeaf ? 0 : sqlite3Get4byte(&aHdr[8]);
|
| +
|
| + if( p->nCell ){
|
| + int i; /* Used to iterate through cells */
|
| + int nUsable = sqlite3BtreeGetPageSize(pBt) - sqlite3BtreeGetReserve(pBt);
|
| +
|
| + p->aCell = sqlite3_malloc((p->nCell+1) * sizeof(StatCell));
|
| + memset(p->aCell, 0, (p->nCell+1) * sizeof(StatCell));
|
| +
|
| + for(i=0; i<p->nCell; i++){
|
| + StatCell *pCell = &p->aCell[i];
|
| +
|
| + iOff = get2byte(&aData[nHdr+i*2]);
|
| + if( !isLeaf ){
|
| + pCell->iChildPg = sqlite3Get4byte(&aData[iOff]);
|
| + iOff += 4;
|
| + }
|
| + if( p->flags==0x05 ){
|
| + /* A table interior node. nPayload==0. */
|
| + }else{
|
| + u32 nPayload; /* Bytes of payload total (local+overflow) */
|
| + int nLocal; /* Bytes of payload stored locally */
|
| + iOff += getVarint32(&aData[iOff], nPayload);
|
| + if( p->flags==0x0D ){
|
| + u64 dummy;
|
| + iOff += sqlite3GetVarint(&aData[iOff], &dummy);
|
| + }
|
| + if( nPayload>p->nMxPayload ) p->nMxPayload = nPayload;
|
| + getLocalPayload(nUsable, p->flags, nPayload, &nLocal);
|
| + pCell->nLocal = nLocal;
|
| + assert( nPayload>=nLocal );
|
| + assert( nLocal<=(nUsable-35) );
|
| + if( nPayload>nLocal ){
|
| + int j;
|
| + int nOvfl = ((nPayload - nLocal) + nUsable-4 - 1) / (nUsable - 4);
|
| + pCell->nLastOvfl = (nPayload-nLocal) - (nOvfl-1) * (nUsable-4);
|
| + pCell->nOvfl = nOvfl;
|
| + pCell->aOvfl = sqlite3_malloc(sizeof(u32)*nOvfl);
|
| + pCell->aOvfl[0] = sqlite3Get4byte(&aData[iOff+nLocal]);
|
| + for(j=1; j<nOvfl; j++){
|
| + int rc;
|
| + u32 iPrev = pCell->aOvfl[j-1];
|
| + DbPage *pPg = 0;
|
| + rc = sqlite3PagerGet(sqlite3BtreePager(pBt), iPrev, &pPg);
|
| + if( rc!=SQLITE_OK ){
|
| + assert( pPg==0 );
|
| + return rc;
|
| + }
|
| + pCell->aOvfl[j] = sqlite3Get4byte(sqlite3PagerGetData(pPg));
|
| + sqlite3PagerUnref(pPg);
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + return SQLITE_OK;
|
| +}
|
| +
|
| +/*
|
| +** Move a statvfs cursor to the next entry in the file.
|
| +*/
|
| +static int statNext(sqlite3_vtab_cursor *pCursor){
|
| + int rc;
|
| + int nPayload;
|
| + StatCursor *pCsr = (StatCursor *)pCursor;
|
| + StatTable *pTab = (StatTable *)pCursor->pVtab;
|
| + Btree *pBt = pTab->db->aDb[0].pBt;
|
| + Pager *pPager = sqlite3BtreePager(pBt);
|
| +
|
| + sqlite3_free(pCsr->zPath);
|
| + pCsr->zPath = 0;
|
| +
|
| + if( pCsr->aPage[0].pPg==0 ){
|
| + rc = sqlite3_step(pCsr->pStmt);
|
| + if( rc==SQLITE_ROW ){
|
| + int nPage;
|
| + u32 iRoot = sqlite3_column_int64(pCsr->pStmt, 1);
|
| + sqlite3PagerPagecount(pPager, &nPage);
|
| + if( nPage==0 ){
|
| + pCsr->isEof = 1;
|
| + return sqlite3_reset(pCsr->pStmt);
|
| + }
|
| + rc = sqlite3PagerGet(pPager, iRoot, &pCsr->aPage[0].pPg);
|
| + pCsr->aPage[0].iPgno = iRoot;
|
| + pCsr->aPage[0].iCell = 0;
|
| + pCsr->aPage[0].zPath = sqlite3_mprintf("/");
|
| + pCsr->iPage = 0;
|
| + }else{
|
| + pCsr->isEof = 1;
|
| + return sqlite3_reset(pCsr->pStmt);
|
| + }
|
| + }else{
|
| +
|
| + /* Page p itself has already been visited. */
|
| + StatPage *p = &pCsr->aPage[pCsr->iPage];
|
| +
|
| + while( p->iCell<p->nCell ){
|
| + StatCell *pCell = &p->aCell[p->iCell];
|
| + if( pCell->iOvfl<pCell->nOvfl ){
|
| + int nUsable = sqlite3BtreeGetPageSize(pBt)-sqlite3BtreeGetReserve(pBt);
|
| + pCsr->zName = (char *)sqlite3_column_text(pCsr->pStmt, 0);
|
| + pCsr->iPageno = pCell->aOvfl[pCell->iOvfl];
|
| + pCsr->zPagetype = "overflow";
|
| + pCsr->nCell = 0;
|
| + pCsr->nMxPayload = 0;
|
| + pCsr->zPath = sqlite3_mprintf(
|
| + "%s%.3x+%.6x", p->zPath, p->iCell, pCell->iOvfl
|
| + );
|
| + if( pCell->iOvfl<pCell->nOvfl-1 ){
|
| + pCsr->nUnused = 0;
|
| + pCsr->nPayload = nUsable - 4;
|
| + }else{
|
| + pCsr->nPayload = pCell->nLastOvfl;
|
| + pCsr->nUnused = nUsable - 4 - pCsr->nPayload;
|
| + }
|
| + pCell->iOvfl++;
|
| + return SQLITE_OK;
|
| + }
|
| + if( p->iRightChildPg ) break;
|
| + p->iCell++;
|
| + }
|
| +
|
| + while( !p->iRightChildPg || p->iCell>p->nCell ){
|
| + statClearPage(p);
|
| + if( pCsr->iPage==0 ) return statNext(pCursor);
|
| + pCsr->iPage--;
|
| + p = &pCsr->aPage[pCsr->iPage];
|
| + }
|
| + pCsr->iPage++;
|
| + assert( p==&pCsr->aPage[pCsr->iPage-1] );
|
| +
|
| + if( p->iCell==p->nCell ){
|
| + p[1].iPgno = p->iRightChildPg;
|
| + }else{
|
| + p[1].iPgno = p->aCell[p->iCell].iChildPg;
|
| + }
|
| + rc = sqlite3PagerGet(pPager, p[1].iPgno, &p[1].pPg);
|
| + p[1].iCell = 0;
|
| + p[1].zPath = sqlite3_mprintf("%s%.3x/", p->zPath, p->iCell);
|
| + p->iCell++;
|
| + }
|
| +
|
| +
|
| + /* Populate the StatCursor fields with the values to be returned
|
| + ** by the xColumn() and xRowid() methods.
|
| + */
|
| + if( rc==SQLITE_OK ){
|
| + int i;
|
| + StatPage *p = &pCsr->aPage[pCsr->iPage];
|
| + pCsr->zName = (char *)sqlite3_column_text(pCsr->pStmt, 0);
|
| + pCsr->iPageno = p->iPgno;
|
| +
|
| + statDecodePage(pBt, p);
|
| +
|
| + switch( p->flags ){
|
| + case 0x05: /* table internal */
|
| + case 0x02: /* index internal */
|
| + pCsr->zPagetype = "internal";
|
| + break;
|
| + case 0x0D: /* table leaf */
|
| + case 0x0A: /* index leaf */
|
| + pCsr->zPagetype = "leaf";
|
| + break;
|
| + default:
|
| + pCsr->zPagetype = "corrupted";
|
| + break;
|
| + }
|
| + pCsr->nCell = p->nCell;
|
| + pCsr->nUnused = p->nUnused;
|
| + pCsr->nMxPayload = p->nMxPayload;
|
| + pCsr->zPath = sqlite3_mprintf("%s", p->zPath);
|
| + nPayload = 0;
|
| + for(i=0; i<p->nCell; i++){
|
| + nPayload += p->aCell[i].nLocal;
|
| + }
|
| + pCsr->nPayload = nPayload;
|
| + }
|
| +
|
| + return rc;
|
| +}
|
| +
|
| +static int statEof(sqlite3_vtab_cursor *pCursor){
|
| + StatCursor *pCsr = (StatCursor *)pCursor;
|
| + return pCsr->isEof;
|
| +}
|
| +
|
| +static int statFilter(
|
| + sqlite3_vtab_cursor *pCursor,
|
| + int idxNum, const char *idxStr,
|
| + int argc, sqlite3_value **argv
|
| +){
|
| + StatCursor *pCsr = (StatCursor *)pCursor;
|
| +
|
| + statResetCsr(pCsr);
|
| + return statNext(pCursor);
|
| +}
|
| +
|
| +static int statColumn(
|
| + sqlite3_vtab_cursor *pCursor,
|
| + sqlite3_context *ctx,
|
| + int i
|
| +){
|
| + StatCursor *pCsr = (StatCursor *)pCursor;
|
| + switch( i ){
|
| + case 0: /* name */
|
| + sqlite3_result_text(ctx, pCsr->zName, -1, SQLITE_STATIC);
|
| + break;
|
| + case 1: /* path */
|
| + sqlite3_result_text(ctx, pCsr->zPath, -1, SQLITE_TRANSIENT);
|
| + break;
|
| + case 2: /* pageno */
|
| + sqlite3_result_int64(ctx, pCsr->iPageno);
|
| + break;
|
| + case 3: /* pagetype */
|
| + sqlite3_result_text(ctx, pCsr->zPagetype, -1, SQLITE_STATIC);
|
| + break;
|
| + case 4: /* ncell */
|
| + sqlite3_result_int(ctx, pCsr->nCell);
|
| + break;
|
| + case 5: /* payload */
|
| + sqlite3_result_int(ctx, pCsr->nPayload);
|
| + break;
|
| + case 6: /* unused */
|
| + sqlite3_result_int(ctx, pCsr->nUnused);
|
| + break;
|
| + case 7: /* mx_payload */
|
| + sqlite3_result_int(ctx, pCsr->nMxPayload);
|
| + break;
|
| + }
|
| + return SQLITE_OK;
|
| +}
|
| +
|
| +static int statRowid(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
|
| + StatCursor *pCsr = (StatCursor *)pCursor;
|
| + *pRowid = pCsr->iPageno;
|
| + return SQLITE_OK;
|
| +}
|
| +
|
| +int sqlite3_dbstat_register(sqlite3 *db){
|
| + static sqlite3_module dbstat_module = {
|
| + 0, /* iVersion */
|
| + statConnect, /* xCreate */
|
| + statConnect, /* xConnect */
|
| + statBestIndex, /* xBestIndex */
|
| + statDisconnect, /* xDisconnect */
|
| + statDisconnect, /* xDestroy */
|
| + statOpen, /* xOpen - open a cursor */
|
| + statClose, /* xClose - close a cursor */
|
| + statFilter, /* xFilter - configure scan constraints */
|
| + statNext, /* xNext - advance a cursor */
|
| + statEof, /* xEof - check for end of scan */
|
| + statColumn, /* xColumn - read data */
|
| + statRowid, /* xRowid - read data */
|
| + 0, /* xUpdate */
|
| + 0, /* xBegin */
|
| + 0, /* xSync */
|
| + 0, /* xCommit */
|
| + 0, /* xRollback */
|
| + 0, /* xFindMethod */
|
| + 0, /* xRename */
|
| + };
|
| + sqlite3_create_module(db, "dbstat", &dbstat_module, 0);
|
| + return SQLITE_OK;
|
| +}
|
| +
|
| +#endif
|
| +
|
| +#ifdef SQLITE_TEST
|
| +#include <tcl.h>
|
| +
|
| +static int test_dbstat(
|
| + void *clientData,
|
| + Tcl_Interp *interp,
|
| + int objc,
|
| + Tcl_Obj *CONST objv[]
|
| +){
|
| +#ifdef SQLITE_OMIT_VIRTUALTABLE
|
| + Tcl_AppendResult(interp, "dbstat not available because of "
|
| + "SQLITE_OMIT_VIRTUALTABLE", (void*)0);
|
| + return TCL_ERROR;
|
| +#else
|
| + struct SqliteDb { sqlite3 *db; };
|
| + char *zDb;
|
| + Tcl_CmdInfo cmdInfo;
|
| +
|
| + if( objc!=2 ){
|
| + Tcl_WrongNumArgs(interp, 1, objv, "DB");
|
| + return TCL_ERROR;
|
| + }
|
| +
|
| + zDb = Tcl_GetString(objv[1]);
|
| + if( Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
|
| + sqlite3* db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
|
| + sqlite3_dbstat_register(db);
|
| + }
|
| + return TCL_OK;
|
| +#endif
|
| +}
|
| +
|
| +int SqlitetestStat_Init(Tcl_Interp *interp){
|
| + Tcl_CreateObjCommand(interp, "register_dbstat_vtab", test_dbstat, 0, 0);
|
| + return TCL_OK;
|
| +}
|
| +#endif
|
|
|
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