| 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); |
| 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); |
| 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 | |