/*
** Usage: btree_payload_size ID
**
** Return the number of bytes of payload
*/
static int btree_payload_size(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
const char **argv /* Text of each argument */
){
BtCursor *pCur;
int n2;
u64 n1;
char zBuf[50];
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID\"", 0);
return TCL_ERROR;
}
pCur = sqlite3TestTextToPtr(argv[1]);
sqlite3BtreeEnter(pCur->pBtree);
/* The cursor may be in "require-seek" state. If this is the case, the
** call to BtreeDataSize() will fix it. */
sqlite3BtreeDataSize(pCur, (u32*)&n2);
if( pCur->apPage[pCur->iPage]->intKey ){
n1 = 0;
}else{
sqlite3BtreeKeySize(pCur, (i64*)&n1);
}
sqlite3BtreeLeave(pCur->pBtree);
sqlite3_snprintf(sizeof(zBuf),zBuf, "%d", (int)(n1+n2));
Tcl_AppendResult(interp, zBuf, 0);
return SQLITE_OK;
}
__declspec(dllexport) int WINAPI sqlite3_cursor_rowid(sqlite3_stmt *pstmt, int cursor, sqlite_int64 *prowid)
{
Vdbe *p = (Vdbe *)pstmt;
sqlite3 *db = (p == NULL) ? NULL : p->db;
int rc = 0;
VdbeCursor *pC;
int ret = 0;
sqlite3_mutex_enter(db->mutex);
while (1)
{
if (cursor < 0 || cursor >= p->nCursor)
{
ret = SQLITE_ERROR;
break;
}
if (p->apCsr[cursor] == NULL)
{
ret = SQLITE_ERROR;
break;
}
pC = p->apCsr[cursor];
ret = sqlite3VdbeCursorMoveto(pC);
if(ret)
break;
if(pC->rowidIsValid)
{
*prowid = pC->lastRowid;
}
else if(pC->pseudoTableReg > 0)
{
ret = SQLITE_ERROR;
break;
}
else if(pC->nullRow || pC->pCursor==0)
{
ret = SQLITE_ERROR;
break;
}
else
{
if (pC->pCursor == NULL)
{
ret = SQLITE_ERROR;
break;
}
sqlite3BtreeKeySize(pC->pCursor, prowid);
*prowid = *prowid;
}
break;
}
sqlite3_mutex_leave(db->mutex);
return ret;
}