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
  19 #ifdef __BORLANDC__
  20   #pragma hdrstop
  21 #endif
  22
  23 #if wxUSE_STREAMS && wxUSE_FILE
  24
  25 #include <stdio.h>
  26 #include "wx/stream.h"
  27 #include "wx/wfstream.h"
  28
  29 // ----------------------------------------------------------------------------
  30 // wxFileInputStream
  31 // ----------------------------------------------------------------------------
  32
  33 wxFileInputStream::wxFileInputStream(const wxString& fileName)
  34   : wxInputStream()
  35 {
  36     m_file = new wxFile(fileName, wxFile::read);
  37     m_file_destroy = TRUE;
  38 }
  39
  40 wxFileInputStream::wxFileInputStream()
  41   : wxInputStream()
  42 {
  43     m_file_destroy = FALSE;
  44     m_file = NULL;
  45 }
  46
  47 wxFileInputStream::wxFileInputStream(wxFile& file)
  48 {
  49     m_file = &file;
  50     m_file_destroy = FALSE;
  51 }
  52
  53 wxFileInputStream::wxFileInputStream(int fd)
  54 {
  55     m_file = new wxFile(fd);
  56     m_file_destroy = TRUE;
  57 }
  58
  59 wxFileInputStream::~wxFileInputStream()
  60 {
  61     if (m_file_destroy)
  62         delete m_file;
  63 }
  64
  65 size_t wxFileInputStream::GetSize() const
  66 {
  67     return m_file->Length();
  68 }
  69
  70 size_t wxFileInputStream::OnSysRead(void *buffer, size_t size)
  71 {
  72     off_t ret;
  73
  74     ret = m_file->Read(buffer, size);
  75
  76     m_lasterror = wxStream_NOERROR;
  77     if (m_file->Eof())
  78         m_lasterror = wxStream_EOF;
  79     if (ret == wxInvalidOffset)
  80     {
  81         m_lasterror = wxStream_READ_ERR;
  82         ret = 0;
  83     }
  84
  85     return ret;
  86 }
  87
  88 off_t wxFileInputStream::OnSysSeek(off_t pos, wxSeekMode mode)
  89 {
  90     return m_file->Seek(pos, mode) ;
  91 }
  92
  93 off_t wxFileInputStream::OnSysTell() const
  94 {
  95     return m_file->Tell();
  96 }
  97
  98 // ----------------------------------------------------------------------------
  99 // wxFileOutputStream
 100 // ----------------------------------------------------------------------------
 101
 102 wxFileOutputStream::wxFileOutputStream(const wxString& fileName)
 103 {
 104     m_file = new wxFile(fileName, wxFile::write);
 105     m_file_destroy = TRUE;
 106
 107     if (!m_file->IsOpened())
 108     {
 109         m_lasterror = wxSTREAM_WRITE_ERROR;
 110     }
 111     else
 112     {
 113         if (m_file->Error())
 114             m_lasterror = wxSTREAM_WRITE_ERROR;
 115     }
 116 }
 117
 118 wxFileOutputStream::wxFileOutputStream(wxFile& file)
 119 {
 120     m_file = &file;
 121     m_file_destroy = FALSE;
 122 }
 123
 124 wxFileOutputStream::wxFileOutputStream()
 125   : wxOutputStream()
 126 {
 127     m_file_destroy = FALSE;
 128     m_file = NULL;
 129 }
 130
 131 wxFileOutputStream::wxFileOutputStream(int fd)
 132 {
 133     m_file = new wxFile(fd);
 134     m_file_destroy = TRUE;
 135 }
 136
 137 wxFileOutputStream::~wxFileOutputStream()
 138 {
 139     if (m_file_destroy)
 140     {
 141         Sync();
 142         delete m_file;
 143     }
 144 }
 145
 146 size_t wxFileOutputStream::OnSysWrite(const void *buffer, size_t size)
 147 {
 148     size_t ret = m_file->Write(buffer, size);
 149     if (m_file->Error())
 150         m_lasterror = wxStream_WRITE_ERR;
 151     else
 152         m_lasterror = wxStream_NOERROR;
 153     return ret;
 154 }
 155
 156 off_t wxFileOutputStream::OnSysTell() const
 157 {
 158     return m_file->Tell();
 159 }
 160
 161 off_t wxFileOutputStream::OnSysSeek(off_t pos, wxSeekMode mode)
 162 {
 163     return m_file->Seek(pos, mode);
 164 }
 165
 166 void wxFileOutputStream::Sync()
 167 {
 168     wxOutputStream::Sync();
 169     m_file->Flush();
 170 }
 171
 172 size_t wxFileOutputStream::GetSize() const
 173 {
 174     return m_file->Length();
 175 }
 176
 177 // ----------------------------------------------------------------------------
 178 // wxFileStream
 179 // ----------------------------------------------------------------------------
 180
 181 wxFileStream::wxFileStream(const wxString& fileName)
 182             : wxFileInputStream(fileName)
 183 {
 184     wxFileOutputStream::m_file = wxFileInputStream::m_file;
 185 }
 186
 187 // ----------------------------------------------------------------------------
 188 // wxFFileInputStream
 189 // ----------------------------------------------------------------------------
 190
 191 wxFFileInputStream::wxFFileInputStream(const wxString& fileName)
 192   : wxInputStream()
 193 {
 194     m_file = new wxFFile(fileName, "rb");
 195     m_file_destroy = TRUE;
 196 }
 197
 198 wxFFileInputStream::wxFFileInputStream()
 199   : wxInputStream()
 200 {
 201     m_file_destroy = FALSE;
 202     m_file = NULL;
 203 }
 204
 205 wxFFileInputStream::wxFFileInputStream(wxFFile& file)
 206 {
 207     m_file = &file;
 208     m_file_destroy = FALSE;
 209 }
 210
 211 wxFFileInputStream::wxFFileInputStream(FILE *file)
 212 {
 213     m_file = new wxFFile(file);
 214     m_file_destroy = TRUE;
 215 }
 216
 217 wxFFileInputStream::~wxFFileInputStream()
 218 {
 219     if (m_file_destroy)
 220         delete m_file;
 221 }
 222
 223 size_t wxFFileInputStream::GetSize() const
 224 {
 225     return m_file->Length();
 226 }
 227
 228 size_t wxFFileInputStream::OnSysRead(void *buffer, size_t size)
 229 {
 230     off_t ret;
 231
 232     ret = m_file->Read(buffer, size);
 233
 234     if (m_file->Eof())
 235         m_lasterror = wxStream_EOF;
 236     if (ret == wxInvalidOffset)
 237     {
 238         m_lasterror = wxStream_READ_ERR;
 239         ret = 0;
 240     }
 241
 242     return ret;
 243 }
 244
 245 off_t wxFFileInputStream::OnSysSeek(off_t pos, wxSeekMode mode)
 246 {
 247     return ( m_file->Seek(pos, mode) ? pos : wxInvalidOffset );
 248 }
 249
 250 off_t wxFFileInputStream::OnSysTell() const
 251 {
 252     return m_file->Tell();
 253 }
 254
 255 // ----------------------------------------------------------------------------
 256 // wxFFileOutputStream
 257 // ----------------------------------------------------------------------------
 258
 259 wxFFileOutputStream::wxFFileOutputStream(const wxString& fileName)
 260 {
 261     m_file = new wxFFile(fileName, "w+b");
 262     m_file_destroy = TRUE;
 263
 264     if (!m_file->IsOpened())
 265     {
 266         m_lasterror = wxSTREAM_WRITE_ERROR;
 267     }
 268     else
 269     {
 270         if (m_file->Error())
 271             m_lasterror = wxSTREAM_WRITE_ERROR;
 272     }
 273 }
 274
 275 wxFFileOutputStream::wxFFileOutputStream(wxFFile& file)
 276 {
 277     m_file = &file;
 278     m_file_destroy = FALSE;
 279 }
 280
 281 wxFFileOutputStream::wxFFileOutputStream()
 282   : wxOutputStream()
 283 {
 284     m_file_destroy = FALSE;
 285     m_file = NULL;
 286 }
 287
 288 wxFFileOutputStream::wxFFileOutputStream(FILE *file)
 289 {
 290     m_file = new wxFFile(file);
 291     m_file_destroy = TRUE;
 292 }
 293
 294 wxFFileOutputStream::~wxFFileOutputStream()
 295 {
 296     if (m_file_destroy)
 297     {
 298         Sync();
 299         delete m_file;
 300     }
 301 }
 302
 303 size_t wxFFileOutputStream::OnSysWrite(const void *buffer, size_t size)
 304 {
 305     size_t ret = m_file->Write(buffer, size);
 306     if (m_file->Error())
 307         m_lasterror = wxStream_WRITE_ERR;
 308     else
 309         m_lasterror = wxStream_NOERROR;
 310     return ret;
 311 }
 312
 313 off_t wxFFileOutputStream::OnSysTell() const
 314 {
 315     return m_file->Tell();
 316 }
 317
 318 off_t wxFFileOutputStream::OnSysSeek(off_t pos, wxSeekMode mode)
 319 {
 320     return ( m_file->Seek(pos, mode) ? pos : wxInvalidOffset );
 321 }
 322
 323 void wxFFileOutputStream::Sync()
 324 {
 325     wxOutputStream::Sync();
 326     m_file->Flush();
 327 }
 328
 329 size_t wxFFileOutputStream::GetSize() const
 330 {
 331     return m_file->Length();
 332 }
 333
 334 // ----------------------------------------------------------------------------
 335 // wxFFileStream
 336 // ----------------------------------------------------------------------------
 337
 338 wxFFileStream::wxFFileStream(const wxString& fileName)
 339              : wxFFileInputStream(fileName)
 340 {
 341     wxFFileOutputStream::m_file = wxFFileInputStream::m_file;
 342 }
 343
 344 #endif
 345   // wxUSE_STREAMS && wxUSE_FILE
 346