You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
2.8 KiB
107 lines
2.8 KiB
/*=========================================================================
|
|
|
|
Program: Visualization Toolkit
|
|
Module: $RCSfile: vtkThreadMessager.h,v $
|
|
|
|
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.
|
|
|
|
=========================================================================*/
|
|
// .NAME vtkThreadMessager - A class for performing inter-thread messaging
|
|
// .SECTION Description
|
|
// vtkMultithreader is a class that provides support for messaging between
|
|
// threads multithreaded using pthreads or Windows messaging.
|
|
|
|
#ifndef __vtkThreadMessager_h
|
|
#define __vtkThreadMessager_h
|
|
|
|
#include "vtkObject.h"
|
|
|
|
#if defined(VTK_USE_PTHREADS) || defined(VTK_HP_PTHREADS)
|
|
#include <pthread.h> // Needed for pthread types
|
|
#endif
|
|
|
|
class VTK_COMMON_EXPORT vtkThreadMessager : public vtkObject
|
|
{
|
|
public:
|
|
static vtkThreadMessager *New();
|
|
|
|
vtkTypeRevisionMacro(vtkThreadMessager,vtkObject);
|
|
void PrintSelf(ostream& os, vtkIndent indent);
|
|
|
|
// Description:
|
|
// Wait (block, non-busy) until another thread sends a
|
|
// message.
|
|
void WaitForMessage();
|
|
|
|
// Description:
|
|
// Send a message to all threads who are waiting via
|
|
// WaitForMessage().
|
|
void SendWakeMessage();
|
|
|
|
// Description:
|
|
// pthreads only. If the wait is enabled, the thread who
|
|
// is to call WaitForMessage() will block until a receiver
|
|
// thread is ready to receive.
|
|
void EnableWaitForReceiver();
|
|
|
|
// Description:
|
|
// pthreads only. If the wait is enabled, the thread who
|
|
// is to call WaitForMessage() will block until a receiver
|
|
// thread is ready to receive.
|
|
void DisableWaitForReceiver();
|
|
|
|
// Description:
|
|
// pthreads only.
|
|
// If wait is enable, this will block until one thread is ready
|
|
// to receive a message.
|
|
void WaitForReceiver();
|
|
|
|
#ifdef VTK_WORKAROUND_WINDOWS_MANGLE
|
|
# define SendMessageA SendMessage
|
|
# define SendMessageW SendMessage
|
|
#endif
|
|
|
|
// Description:
|
|
// @deprecated Replaced by vtkThreadMessager::SendWakeMessage() as of
|
|
// VTK 5.0.
|
|
VTK_LEGACY(void SendMessage());
|
|
|
|
#ifdef VTK_WORKAROUND_WINDOWS_MANGLE
|
|
# undef SendMessageW
|
|
# undef SendMessageA
|
|
//BTX
|
|
VTK_LEGACY(void SendMessageA());
|
|
VTK_LEGACY(void SendMessageW());
|
|
//ETX
|
|
#endif
|
|
|
|
protected:
|
|
vtkThreadMessager();
|
|
~vtkThreadMessager();
|
|
|
|
#ifdef VTK_USE_PTHREADS
|
|
pthread_mutex_t Mutex;
|
|
pthread_cond_t PSignal;
|
|
#endif
|
|
|
|
#ifdef VTK_USE_WIN32_THREADS
|
|
vtkWindowsHANDLE WSignal;
|
|
#endif
|
|
|
|
private:
|
|
vtkThreadMessager(const vtkThreadMessager&); // Not implemented.
|
|
void operator=(const vtkThreadMessager&); // Not implemented.
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|