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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSocketCollection.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkSocketCollection.h"
#include "vtkCollectionIterator.h"
#include "vtkObjectFactory.h"
#include "vtkSocket.h"
vtkStandardNewMacro(vtkSocketCollection);
//-----------------------------------------------------------------------------
vtkSocketCollection::vtkSocketCollection()
{
this->SelectedSocket = 0;
}
//-----------------------------------------------------------------------------
vtkSocketCollection::~vtkSocketCollection()
{
}
//-----------------------------------------------------------------------------
void vtkSocketCollection::AddItem(vtkSocket* soc)
{
this->Superclass::AddItem(soc);
}
//-----------------------------------------------------------------------------
int vtkSocketCollection::SelectSockets(unsigned long msec /*=0*/)
{
// clear last selected socket.
this->SelectedSocket = 0;
int max = this->GetNumberOfItems();
if (max <= 0)
{
vtkErrorMacro("No sockets to select.");
return -1;
}
int* socket_indices = new int[max];
int* sockets_to_select = new int[max];
int no_of_sockets = 0;
vtkCollectionIterator* iter = this->NewIterator();
int index = 0;
for (iter->InitTraversal(); !iter->IsDoneWithTraversal();
iter->GoToNextItem(), index++)
{
vtkSocket* soc = vtkSocket::SafeDownCast(iter->GetCurrentObject());
if (!soc->GetConnected())
{
// skip not-connected sockets.
continue;
}
int sockfd = soc->GetSocketDescriptor();
sockets_to_select[no_of_sockets] = sockfd;
socket_indices[no_of_sockets] = index;
no_of_sockets++;
}
if (no_of_sockets == 0)
{
vtkErrorMacro("No alive sockets!");
delete []sockets_to_select;
delete []socket_indices;
return -1;
}
int res = vtkSocket::SelectSockets(sockets_to_select, no_of_sockets,
msec, &index);
int actual_index = -1;
if (index != -1)
{
actual_index = socket_indices[index];
}
iter->Delete();
delete []sockets_to_select;
delete []socket_indices;
if (res <= 0 || index == -1)
{
return res;
}
this->SelectedSocket = vtkSocket::SafeDownCast(
this->GetItemAsObject(actual_index));
return 1;
}
//-----------------------------------------------------------------------------
void vtkSocketCollection::RemoveItem(vtkObject* a)
{
if (this->SelectedSocket && this->SelectedSocket == a)
{
this->SelectedSocket = 0;
}
this->Superclass::RemoveItem(a);
}
//-----------------------------------------------------------------------------
void vtkSocketCollection::RemoveItem(int i)
{
if (this->SelectedSocket && this->GetItemAsObject(i) == this->SelectedSocket)
{
this->SelectedSocket = 0;
}
this->Superclass::RemoveItem(i);
}
//-----------------------------------------------------------------------------
void vtkSocketCollection::ReplaceItem(int i, vtkObject* a)
{
if (this->SelectedSocket && this->GetItemAsObject(i) == this->SelectedSocket)
{
this->SelectedSocket = 0;
}
this->Superclass::ReplaceItem(i, a);
}
//-----------------------------------------------------------------------------
void vtkSocketCollection::RemoveAllItems()
{
this->SelectedSocket = 0;
this->Superclass::RemoveAllItems();
}
//-----------------------------------------------------------------------------
void vtkSocketCollection::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
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