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/*=========================================================================
Program: ParaView
Module: vtkPVSession.cxx
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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 "vtkPVSession.h"
#include "vtkObjectFactory.h"
#include "vtkPVProgressHandler.h"
#include "vtkPVServerInformation.h"
//----------------------------------------------------------------------------
vtkPVSession::vtkPVSession()
{
this->ProgressHandler = vtkPVProgressHandler::New();
this->ProgressHandler->SetSession(this); // not reference counted.
this->ProgressCount = 0;
this->InCleanupPendingProgress = false;
}
//----------------------------------------------------------------------------
vtkPVSession::~vtkPVSession()
{
this->ProgressHandler->SetSession(NULL);
this->ProgressHandler->Delete();
this->ProgressHandler = NULL;
}
//----------------------------------------------------------------------------
vtkPVSession::ServerFlags vtkPVSession::GetProcessRoles()
{
return CLIENT_AND_SERVERS;
}
//----------------------------------------------------------------------------
vtkMultiProcessController* vtkPVSession::GetController(vtkPVSession::ServerFlags)
{
return NULL;
}
//----------------------------------------------------------------------------
bool vtkPVSession::GetPendingProgress()
{
return (this->InCleanupPendingProgress || this->ProgressCount > 0);
}
//----------------------------------------------------------------------------
void vtkPVSession::PrepareProgress()
{
if (this->InCleanupPendingProgress)
{
return;
}
if (this->ProgressCount == 0)
{
this->PrepareProgressInternal();
}
this->ProgressCount++;
}
//----------------------------------------------------------------------------
void vtkPVSession::CleanupPendingProgress()
{
if (this->InCleanupPendingProgress)
{
return;
}
this->InCleanupPendingProgress = true;
this->ProgressCount--;
if (this->ProgressCount == 0)
{
this->CleanupPendingProgressInternal();
}
if (this->ProgressCount < 0)
{
vtkErrorMacro("PrepareProgress and CleanupPendingProgress mismatch!");
this->ProgressCount = 0;
}
this->InCleanupPendingProgress = false;
}
//----------------------------------------------------------------------------
void vtkPVSession::PrepareProgressInternal()
{
this->ProgressHandler->PrepareProgress();
}
//----------------------------------------------------------------------------
void vtkPVSession::CleanupPendingProgressInternal()
{
this->ProgressHandler->CleanupPendingProgress();
}
//-----------------------------------------------------------------------------
bool vtkPVSession::OnWrongTagEvent(vtkObject*, unsigned long, void* calldata)
{
int tag = -1;
int len = -1;
const char* data = reinterpret_cast<const char*>(calldata);
const char* ptr = data;
memcpy(&tag, ptr, sizeof(tag));
if (tag == vtkPVSession::EXCEPTION_EVENT_TAG)
{
ptr += sizeof(tag);
memcpy(&len, ptr, sizeof(len));
ptr += sizeof(len);
vtkErrorMacro("Encountered Exception: " << ptr);
// this->OnSocketError();
}
else
{
vtkErrorMacro("Internal ParaView Error: "
"Socket Communicator received wrong tag: "
<< tag);
// Treat as a socket error.
// this->OnSocketError();
}
return false;
}
//----------------------------------------------------------------------------
void vtkPVSession::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
//----------------------------------------------------------------------------
bool vtkPVSession::IsMultiClients()
{
return (this->GetServerInformation()->GetMultiClientsEnable() != 0);
}
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