DBCursorPriv *DBPrivOpenCursor(DBPriv *db)
{
if (!LockCursor(db))
{
return NULL;
}
if (!Lock(db))
{
UnlockCursor(db);
return NULL;
}
if (!dpiterinit(db->depot))
{
Log(LOG_LEVEL_ERR, "Could not initialize QuickDB iterator. (dpiterinit: %s)", dperrmsg(dpecode));
Unlock(db);
UnlockCursor(db);
return NULL;
}
DBCursorPriv *cursor = xcalloc(1, sizeof(DBCursorPriv));
cursor->db = db;
Unlock(db);
/* Cursor remains locked */
return cursor;
}
void CRectangleDrawer::OnLButtonDown(UINT nFlags, CPoint point)
{
if ( m_bDrawing )
{
// Log
//TRACE( CString(L"m_bIsStartDraw is True! function name is ") + __FUNCDNAME__ );
}
CRect Rect;
GetClientRect(&Rect);
ClientToScreen(&Rect);
if ( m_bIsOK )
{
if ( IsDargPoint(point) )
{
LockCursor(Rect);
m_bDragging = true;
return;
}
else if ( (m_nDragDir = IsDargPoint2(point)) != NO_Darg )
{
m_bDragging = false;
LockCursor(Rect);
return;
}
else if ( IsDargCenterPoint(point) )
{
m_bDragging = false;
LockCursor(Rect);
m_bDragCenter = true;
return;
}
m_bDragging = false;
return;
}
LockCursor(Rect);
m_bIsOK = m_bDrawing = true;
m_PointQueue[0] = m_PointQueue[1] =
m_PointQueue[2] = m_PointQueue[3] = point;
ParentInvalidate();
}
/*
* This one has to be locked against cursor -- deleting entries might interrupt
* iteration.
*/
bool DBPrivDelete(DBPriv *db, const void *key, int key_size)
{
if (!LockCursor(db))
{
return false;
}
int ret = Delete(db->hdb, key, key_size);
UnlockCursor(db);
return ret;
}
DBCursorPriv *DBPrivOpenCursor(DBPriv *db)
{
if (!LockCursor(db))
{
return false;
}
DBCursorPriv *cursor = xcalloc(1, sizeof(DBCursorPriv));
cursor->db = db;
/* Cursor remains locked */
return cursor;
}
