include/wx/unix/private/pipestream.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/unix/private/pipestream.h
   3 // Purpose:     Unix wxPipeInputStream and wxPipeOutputStream declarations
   4 // Author:      Vadim Zeitlin
   5 // Created:     2013-06-08 (extracted from wx/unix/pipe.h)
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2013 Vadim Zeitlin <vadim@wxwidgets.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_UNIX_PRIVATE_PIPESTREAM_H_
  12 #define _WX_UNIX_PRIVATE_PIPESTREAM_H_
  13
  14 #include "wx/wfstream.h"
  15
  16 class wxPipeInputStream : public wxFileInputStream
  17 {
  18 public:
  19     wxEXPLICIT wxPipeInputStream(int fd) : wxFileInputStream(fd) { }
  20
  21     // return true if the pipe is still opened
  22     bool IsOpened() const { return !Eof(); }
  23
  24     // return true if we have anything to read, don't block
  25     virtual bool CanRead() const;
  26 };
  27
  28 class wxPipeOutputStream : public wxFileOutputStream
  29 {
  30 public:
  31     wxPipeOutputStream(int fd) : wxFileOutputStream(fd) { }
  32
  33     // Override the base class version to ignore "pipe full" errors: this is
  34     // not an error for this class.
  35     size_t OnSysWrite(const void *buffer, size_t size);
  36 };
  37
  38 #endif // _WX_UNIX_PRIVATE_PIPESTREAM_H_