rt-thread-official/components/external/SQLite-3.8.1/SQLiteLib/test/test_btree.c

63 lines
1.8 KiB
C

/*
** 2007 May 05
**
** 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.
**
*************************************************************************
** Code for testing the btree.c module in SQLite. This code
** is not included in the SQLite library. It is used for automated
** testing of the SQLite library.
*/
#include "btreeInt.h"
#include <tcl.h>
/*
** Usage: sqlite3_shared_cache_report
**
** Return a list of file that are shared and the number of
** references to each file.
*/
int sqlite3BtreeSharedCacheReport(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
#ifndef SQLITE_OMIT_SHARED_CACHE
extern BtShared *sqlite3SharedCacheList;
BtShared *pBt;
Tcl_Obj *pRet = Tcl_NewObj();
for(pBt=GLOBAL(BtShared*,sqlite3SharedCacheList); pBt; pBt=pBt->pNext){
const char *zFile = sqlite3PagerFilename(pBt->pPager, 1);
Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj(zFile, -1));
Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(pBt->nRef));
}
Tcl_SetObjResult(interp, pRet);
#endif
return TCL_OK;
}
/*
** Print debugging information about all cursors to standard output.
*/
void sqlite3BtreeCursorList(Btree *p){
#ifdef SQLITE_DEBUG
BtCursor *pCur;
BtShared *pBt = p->pBt;
for(pCur=pBt->pCursor; pCur; pCur=pCur->pNext){
MemPage *pPage = pCur->apPage[pCur->iPage];
char *zMode = pCur->wrFlag ? "rw" : "ro";
sqlite3DebugPrintf("CURSOR %p rooted at %4d(%s) currently at %d.%d%s\n",
pCur, pCur->pgnoRoot, zMode,
pPage ? pPage->pgno : 0, pCur->aiIdx[pCur->iPage],
(pCur->eState==CURSOR_VALID) ? "" : " eof"
);
}
#endif
}