__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;
Cursor *pC;
int ret = 0;
EnterDbMutex(db);
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->pseudoTable)
{
*prowid = keyToInt(pC->iKey);
}
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 = keyToInt(*prowid);
}
break;
}
LeaveDbMutex(db);
return ret;
}
/*
** If a MoveTo operation is pending on the given cursor, then do that
** MoveTo now. Return an error code. If no MoveTo is pending, this
** routine does nothing and returns SQLITE_OK.
*/
int sqliteVdbeCursorMoveto(Cursor *p){
if( p->deferredMoveto ){
int res;
extern int sqlite_search_count;
sqliteBtreeMoveto(p->pCursor, (char*)&p->movetoTarget, sizeof(int), &res);
p->lastRecno = keyToInt(p->movetoTarget);
p->recnoIsValid = res==0;
if( res<0 ){
sqliteBtreeNext(p->pCursor, &res);
}
sqlite_search_count++;
p->deferredMoveto = 0;
}
return SQLITE_OK;
}
/*
** If a MoveTo operation is pending on the given cursor, then do that
** MoveTo now. Return an error code. If no MoveTo is pending, this
** routine does nothing and returns SQLITE_OK.
*/
int sqlite3VdbeCursorMoveto(Cursor *p){
if( p->deferredMoveto ){
int res;
extern int sqlite3_search_count;
assert( p->intKey );
if( p->intKey ){
sqlite3BtreeMoveto(p->pCursor, 0, p->movetoTarget, &res);
}else{
sqlite3BtreeMoveto(p->pCursor,(char*)&p->movetoTarget,sizeof(i64),&res);
}
*p->pIncrKey = 0;
p->lastRecno = keyToInt(p->movetoTarget);
p->recnoIsValid = res==0;
if( res<0 ){
sqlite3BtreeNext(p->pCursor, &res);
}
sqlite3_search_count++;
p->deferredMoveto = 0;
p->cacheValid = 0;
}
return SQLITE_OK;
}
//Console do elevador
void console(void)
{
int goTo, in; //Objetivo, entrada
printf ("Console do Elevador.\n");
do
{
printf (": ");
in = getch(); //Recebe tecla
goTo = keyToInt(in); //Recebe inteiro
if ((goTo >= 0) && (goTo <= 3) && (goTo != position)) //Verifica��o
toMove(goTo); //Chama do procedimento (destino)
else
if (goTo == -1) //Caso a mesma posi��o
{
toMove(0); //Desce o elevador ate o t�rreo
printf ("Sair.\n");
goTo = -1;
}
else //Qualquer outro valor
printf ("Erro.\n");
}
while (goTo != -1); //Condi��o do loop
}