vtkPVSession.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkPVSession_h
#define vtkPVSession_h
 
#include "vtkRemotingCoreModule.h" //needed for exports
#include "vtkSession.h"
 
class vtkMPIMToNSocketConnection;
class vtkMultiProcessController;
class vtkPVProgressHandler;
class vtkPVServerInformation;
 
class VTKREMOTINGCORE_EXPORT vtkPVSession : public vtkSession
{
public:
  vtkTypeMacro(vtkPVSession, vtkSession);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  enum ServerFlags
  {
    NONE = 0,
    DATA_SERVER = 0x01,
    DATA_SERVER_ROOT = 0x02,
    RENDER_SERVER = 0x04,
    RENDER_SERVER_ROOT = 0x08,
    SERVERS = DATA_SERVER | RENDER_SERVER,
    CLIENT = 0x10,
    CLIENT_AND_SERVERS = DATA_SERVER | CLIENT | RENDER_SERVER
  };
 
  virtual ServerFlags GetProcessRoles();
 
  bool HasProcessRole(vtkTypeUInt32 flag)
  {
    return ((flag & static_cast<vtkTypeUInt32>(this->GetProcessRoles())) == flag);
  }
 
  virtual vtkMultiProcessController* GetController(ServerFlags processType);
 
  virtual vtkMPIMToNSocketConnection* GetMPIMToNSocketConnection() { return nullptr; }
 
  virtual vtkPVServerInformation* GetServerInformation() = 0;
 
  virtual bool IsMultiClients();
 
 
  vtkGetObjectMacro(ProgressHandler, vtkPVProgressHandler);
 
 
  void PrepareProgress();
  void CleanupPendingProgress();
 
  bool GetPendingProgress();
 
protected:
  vtkPVSession();
  ~vtkPVSession() override;
 
  enum
  {
    EXCEPTION_EVENT_TAG = 31416
  };
 
  virtual bool OnWrongTagEvent(vtkObject* caller, unsigned long eventid, void* calldata);
 
 
  virtual void PrepareProgressInternal();
  virtual void CleanupPendingProgressInternal();
 
  vtkPVProgressHandler* ProgressHandler;
 
private:
  vtkPVSession(const vtkPVSession&) = delete;
  void operator=(const vtkPVSession&) = delete;
 
  int ProgressCount;
  // This flags ensures that while we are waiting for an previous progress-pair
  // to finish, we don't start new progress-pairs.
  bool InCleanupPendingProgress;
};
 
#endif