xref: /sqlite-3.40.0/src/test_btree.c (revision 7617e4a8)
1 /*
2 ** 2007 May 05
3 **
4 ** The author disclaims copyright to this source code.  In place of
5 ** a legal notice, here is a blessing:
6 **
7 **    May you do good and not evil.
8 **    May you find forgiveness for yourself and forgive others.
9 **    May you share freely, never taking more than you give.
10 **
11 *************************************************************************
12 ** Code for testing the btree.c module in SQLite.  This code
13 ** is not included in the SQLite library.  It is used for automated
14 ** testing of the SQLite library.
15 */
16 #include "btreeInt.h"
17 #if defined(INCLUDE_SQLITE_TCL_H)
18 #  include "sqlite_tcl.h"
19 #else
20 #  include "tcl.h"
21 #endif
22 
23 /*
24 ** Usage: sqlite3_shared_cache_report
25 **
26 ** Return a list of file that are shared and the number of
27 ** references to each file.
28 */
sqlite3BtreeSharedCacheReport(void * clientData,Tcl_Interp * interp,int objc,Tcl_Obj * CONST objv[])29 int SQLITE_TCLAPI sqlite3BtreeSharedCacheReport(
30   void * clientData,
31   Tcl_Interp *interp,
32   int objc,
33   Tcl_Obj *CONST objv[]
34 ){
35 #ifndef SQLITE_OMIT_SHARED_CACHE
36   extern BtShared *sqlite3SharedCacheList;
37   BtShared *pBt;
38   Tcl_Obj *pRet = Tcl_NewObj();
39   for(pBt=GLOBAL(BtShared*,sqlite3SharedCacheList); pBt; pBt=pBt->pNext){
40     const char *zFile = sqlite3PagerFilename(pBt->pPager, 1);
41     Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj(zFile, -1));
42     Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(pBt->nRef));
43   }
44   Tcl_SetObjResult(interp, pRet);
45 #endif
46   return TCL_OK;
47 }
48 
49 /*
50 ** Print debugging information about all cursors to standard output.
51 */
sqlite3BtreeCursorList(Btree * p)52 void sqlite3BtreeCursorList(Btree *p){
53 #ifdef SQLITE_DEBUG
54   BtCursor *pCur;
55   BtShared *pBt = p->pBt;
56   for(pCur=pBt->pCursor; pCur; pCur=pCur->pNext){
57     MemPage *pPage = pCur->apPage[pCur->iPage];
58     char *zMode = (pCur->curFlags & BTCF_WriteFlag) ? "rw" : "ro";
59     sqlite3DebugPrintf("CURSOR %p rooted at %4d(%s) currently at %d.%d%s\n",
60        pCur, pCur->pgnoRoot, zMode,
61        pPage ? pPage->pgno : 0, pCur->aiIdx[pCur->iPage],
62        (pCur->eState==CURSOR_VALID) ? "" : " eof"
63     );
64   }
65 #endif
66 }
67