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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkDummyCommunicator
* @brief Dummy controller for single process applications.
*
*
*
* This is a dummy communicator, which can be used by applications that always
* require a controller but are also compiled on systems without threads or MPI.
* Because there is always only one process, no real communication takes place.
*
*/
#ifndef vtkDummyCommunicator_h
#define vtkDummyCommunicator_h
#include "vtkCommunicator.h"
#include "vtkParallelCoreModule.h" // For export macro
VTK_ABI_NAMESPACE_BEGIN
class VTKPARALLELCORE_EXPORT vtkDummyCommunicator : public vtkCommunicator
{
public:
vtkTypeMacro(vtkDummyCommunicator, vtkCommunicator);
static vtkDummyCommunicator* New();
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* Since there is no one to communicate with, these methods just report an
* error.
*/
int SendVoidArray(const void*, vtkIdType, int, int, int) override
{
vtkWarningMacro("There is no one to send to.");
return 0;
}
int ReceiveVoidArray(void*, vtkIdType, int, int, int) override
{
vtkWarningMacro("There is no one to receive from.");
return 0;
}
///@}
protected:
vtkDummyCommunicator();
~vtkDummyCommunicator() override;
private:
vtkDummyCommunicator(const vtkDummyCommunicator&) = delete;
void operator=(const vtkDummyCommunicator&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif // vtkDummyCommunicator_h
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