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