src/common/wfstream.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        fstream.cpp
   3 // Purpose:     "File stream" classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     11/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Guilhem Lavaux
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "wfstream.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18 #include <stdio.h>
  19 #include <wx/stream.h>
  20 #include <wx/wfstream.h>
  21
  22 #ifdef __BORLANDC__
  23 #pragma hdrstop
  24 #endif
  25
  26 // ----------------------------------------------------------------------------
  27 // wxFileInputStream
  28 // ----------------------------------------------------------------------------
  29
  30 wxFileInputStream::wxFileInputStream(const wxString& fileName)
  31   : wxInputStream()
  32 {
  33   m_file = new wxFile(fileName, wxFile::read);
  34   m_file_destroy = TRUE;
  35   m_i_streambuf->SetBufferIO(1024);
  36 }
  37
  38 wxFileInputStream::wxFileInputStream()
  39   : wxInputStream()
  40 {
  41   m_file_destroy = FALSE;
  42   m_file = NULL;
  43 }
  44
  45 wxFileInputStream::wxFileInputStream(wxFile& file)
  46 {
  47   m_file = &file;
  48   m_file_destroy = FALSE;
  49   m_i_streambuf->SetBufferIO(1024);
  50 }
  51
  52 wxFileInputStream::wxFileInputStream(int fd)
  53 {
  54   m_file = new wxFile(fd);
  55   m_file_destroy = TRUE;
  56   m_i_streambuf->SetBufferIO(1024);
  57 }
  58
  59 wxFileInputStream::~wxFileInputStream()
  60 {
  61   if (m_file_destroy)
  62     delete m_file;
  63 }
  64
  65 char wxFileInputStream::Peek()
  66 {
  67   return 0;
  68 }
  69
  70 size_t wxFileInputStream::StreamSize() const
  71 {
  72   return m_file->Length();
  73 }
  74
  75 size_t wxFileInputStream::OnSysRead(void *buffer, size_t size)
  76 {
  77   return m_file->Read(buffer, size);
  78 }
  79
  80 off_t wxFileInputStream::OnSysSeek(off_t pos, wxSeekMode mode)
  81 {
  82   return m_file->Seek(pos, mode);
  83 }
  84
  85 off_t wxFileInputStream::OnSysTell() const
  86 {
  87   return m_file->Tell();
  88 }
  89
  90 // ----------------------------------------------------------------------------
  91 // wxFileOutputStream
  92 // ----------------------------------------------------------------------------
  93
  94 wxFileOutputStream::wxFileOutputStream(const wxString& fileName)
  95 {
  96   m_file = new wxFile(fileName, wxFile::write);
  97   m_file_destroy = TRUE;
  98   m_o_streambuf->SetBufferIO(1024);
  99 }
 100
 101 wxFileOutputStream::wxFileOutputStream(wxFile& file)
 102 {
 103   m_file = &file;
 104   m_file_destroy = FALSE;
 105   m_o_streambuf->SetBufferIO(1024);
 106 }
 107
 108 wxFileOutputStream::wxFileOutputStream()
 109   : wxOutputStream()
 110 {
 111   m_o_streambuf->SetBufferIO(1024);
 112   m_file_destroy = FALSE;
 113   m_file = NULL;
 114 }
 115
 116 wxFileOutputStream::wxFileOutputStream(int fd)
 117 {
 118   m_file = new wxFile(fd);
 119   m_file_destroy = TRUE;
 120   m_o_streambuf->SetBufferIO(1024);
 121 }
 122
 123 wxFileOutputStream::~wxFileOutputStream()
 124 {
 125   if (m_file_destroy) {
 126     Sync();
 127     delete m_file;
 128   }
 129 }
 130
 131 size_t wxFileOutputStream::OnSysWrite(const void *buffer, size_t size)
 132 {
 133   size_t ret = m_file->Write(buffer, size);
 134   m_lasterror = wxStream_EOF; // TODO
 135   return ret;
 136 }
 137
 138 off_t wxFileOutputStream::OnSysTell() const
 139 {
 140   return m_file->Tell();
 141 }
 142
 143 off_t wxFileOutputStream::OnSysSeek(off_t pos, wxSeekMode mode)
 144 {
 145   return m_file->Seek(pos, mode);
 146 }
 147
 148 void wxFileOutputStream::Sync()
 149 {
 150   wxOutputStream::Sync();
 151   m_file->Flush();
 152 }
 153
 154 size_t wxFileOutputStream::StreamSize() const
 155 {
 156   return m_file->Length();
 157 }
 158
 159 // ----------------------------------------------------------------------------
 160 // wxFileStream
 161 // ----------------------------------------------------------------------------
 162 wxFileStream::wxFileStream(const wxString& fileName)
 163  : wxFileInputStream(fileName), wxFileOutputStream(*wxFileInputStream::m_file)
 164 {
 165 }