/usr/include/paraview/vtkTCPNetworkAccessManager.h is in paraview-dev 5.0.1+dfsg1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123  | /*=========================================================================
  Program:   ParaView
  Module:    vtkTCPNetworkAccessManager.h
  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.
=========================================================================*/
// .NAME vtkTCPNetworkAccessManager
// .SECTION Description
// vtkTCPNetworkAccessManager is a concrete implementation of
// vtkNetworkAccessManager that uses tcp/ip sockets for communication between
// processes. It supports urls that use "tcp" as their protocol specifier.
#ifndef vtkTCPNetworkAccessManager_h
#define vtkTCPNetworkAccessManager_h
#include "vtkPVClientServerCoreCoreModule.h" //needed for exports
#include "vtkNetworkAccessManager.h"
class vtkMultiProcessController;
class VTKPVCLIENTSERVERCORECORE_EXPORT vtkTCPNetworkAccessManager : public vtkNetworkAccessManager
{
public:
  static vtkTCPNetworkAccessManager* New();
  vtkTypeMacro(vtkTCPNetworkAccessManager, vtkNetworkAccessManager);
  void PrintSelf(ostream& os, vtkIndent indent);
  // Description:
  // Creates a new connection given the url.
  // This call may block until the connection can be established. To keep
  // user-interfaces responsive, one can listen to the vtkCommand::ProgressEvent
  // fired periodically by this class while waiting.
  //
  // vtkNetworkAccessManager can  be waiting for atmost one connection at a
  // time. Calling NewConnection() while another connection is pending will
  // raise an error.
  //
  // To abort the connection and cancel the waiting, simply call
  // AbortPendingConnection() in the vtkCommand::ProgressEvent callback.
  //
  // Returns the new connection instance on success, otherwise NULL.
  //
  // URLs are of the following form:
  // <transport>://<address>
  //   * tcp://<hostname>:<port>
  //   * tcp://localhost:<port>?listen=true& -- listen for connection on port.
  //   * tcp://localhost:<port>?listen=true&multiple=true -- listen for multiple
  // Examples:
  //   * tcp://medea:12345
  //   * tcp://localhost:12345?listen&handshake=3.8.12
  // Supported parameters:
  // handshake :- specify a message that is matched with the other side
  // listen    :- open a server-socket for a client to connect to
  // multiple  :- leave server-socket open for more than 1 client to connect
  //              (listen must be set to true)
  // nonblocking:- When listen is true, this will result in the call returning
  //               NULL if a client connection is not available immediately.
  //               It leaves the server socket open for client to connect.
  // timeout   :- When connecting to remote i.e listen==false, specify the time
  //              (in seconds) for which this call blocks to retry attempts to
  //              connect to the host/port. If absent, default is 60s. 0 or
  //              negative implies no retry attempts.
  virtual vtkMultiProcessController* NewConnection(const char* url);
  // Description:
  // Used to abort pending connection creation, if any. Refer to
  // NewConnection() for details.
  virtual void AbortPendingConnection();
  // Description:
  // Process any network activity.
  virtual int ProcessEvents(unsigned long timeout_msecs);
  // Description:
  // Peeks to check if any activity is available. When this call returns true,
  // ProcessEvents() will always result in some activity processing if called
  // afterword.
  virtual bool GetNetworkEventsAvailable();
  // Description:
  // Returns true is the manager is currently waiting for any connections.
  virtual bool GetPendingConnectionsPresent();
//BTX
protected:
  vtkTCPNetworkAccessManager();
  ~vtkTCPNetworkAccessManager();
  // used by GetPendingConnectionsPresent and ProcessEvents
  int ProcessEventsInternal(unsigned long timeout_msecs, bool do_processing);
  // Description:
  // Connects to remote processes.
  vtkMultiProcessController* ConnectToRemote(const char* hostname, int port,
    const char* handshake, int timeout_in_seconds);
  // Description:
  // Waits for connection from remote process.
  vtkMultiProcessController* WaitForConnection(int port, bool once,
    const char* handshake, bool nonblocking);
  bool ParaViewHandshake(vtkMultiProcessController* controller,
    bool server_side, const char* handshake);
  bool AbortPendingConnectionFlag;
private:
  vtkTCPNetworkAccessManager(const vtkTCPNetworkAccessManager&); // Not implemented
  void operator=(const vtkTCPNetworkAccessManager&); // Not implemented
  class vtkInternals;
  vtkInternals* Internals;
//ETX
};
#endif
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