| 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 | if (m_file->Eof()) |
| 77 | m_lasterror = wxStream_EOF; |
| 78 | if (ret == wxInvalidOffset) { |
| 79 | m_lasterror = wxStream_READ_ERR; |
| 80 | ret = 0; |
| 81 | } |
| 82 | |
| 83 | return ret; |
| 84 | } |
| 85 | |
| 86 | off_t wxFileInputStream::OnSysSeek(off_t pos, wxSeekMode mode) |
| 87 | { |
| 88 | return m_file->Seek(pos, mode); |
| 89 | } |
| 90 | |
| 91 | off_t wxFileInputStream::OnSysTell() const |
| 92 | { |
| 93 | return m_file->Tell(); |
| 94 | } |
| 95 | |
| 96 | // ---------------------------------------------------------------------------- |
| 97 | // wxFileOutputStream |
| 98 | // ---------------------------------------------------------------------------- |
| 99 | |
| 100 | wxFileOutputStream::wxFileOutputStream(const wxString& fileName) |
| 101 | { |
| 102 | m_file = new wxFile(fileName, wxFile::write); |
| 103 | m_file_destroy = TRUE; |
| 104 | } |
| 105 | |
| 106 | wxFileOutputStream::wxFileOutputStream(wxFile& file) |
| 107 | { |
| 108 | m_file = &file; |
| 109 | m_file_destroy = FALSE; |
| 110 | } |
| 111 | |
| 112 | wxFileOutputStream::wxFileOutputStream() |
| 113 | : wxOutputStream() |
| 114 | { |
| 115 | m_file_destroy = FALSE; |
| 116 | m_file = NULL; |
| 117 | } |
| 118 | |
| 119 | wxFileOutputStream::wxFileOutputStream(int fd) |
| 120 | { |
| 121 | m_file = new wxFile(fd); |
| 122 | m_file_destroy = TRUE; |
| 123 | } |
| 124 | |
| 125 | wxFileOutputStream::~wxFileOutputStream() |
| 126 | { |
| 127 | if (m_file_destroy) { |
| 128 | Sync(); |
| 129 | delete m_file; |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | size_t wxFileOutputStream::OnSysWrite(const void *buffer, size_t size) |
| 134 | { |
| 135 | size_t ret = m_file->Write(buffer, size); |
| 136 | if (m_file->Error()) |
| 137 | m_lasterror = wxStream_WRITE_ERR; |
| 138 | else |
| 139 | m_lasterror = wxStream_NOERROR; |
| 140 | return ret; |
| 141 | } |
| 142 | |
| 143 | off_t wxFileOutputStream::OnSysTell() const |
| 144 | { |
| 145 | return m_file->Tell(); |
| 146 | } |
| 147 | |
| 148 | off_t wxFileOutputStream::OnSysSeek(off_t pos, wxSeekMode mode) |
| 149 | { |
| 150 | return m_file->Seek(pos, mode); |
| 151 | } |
| 152 | |
| 153 | void wxFileOutputStream::Sync() |
| 154 | { |
| 155 | wxOutputStream::Sync(); |
| 156 | m_file->Flush(); |
| 157 | } |
| 158 | |
| 159 | size_t wxFileOutputStream::GetSize() const |
| 160 | { |
| 161 | return m_file->Length(); |
| 162 | } |
| 163 | |
| 164 | // ---------------------------------------------------------------------------- |
| 165 | // wxFileStream |
| 166 | // ---------------------------------------------------------------------------- |
| 167 | wxFileStream::wxFileStream(const wxString& fileName) |
| 168 | : wxFileInputStream(fileName), wxFileOutputStream(*wxFileInputStream::m_file) |
| 169 | { |
| 170 | } |
| 171 | |
| 172 | // ---------------------------------------------------------------------------- |
| 173 | // wxFFileInputStream |
| 174 | // ---------------------------------------------------------------------------- |
| 175 | |
| 176 | wxFFileInputStream::wxFFileInputStream(const wxString& fileName) |
| 177 | : wxInputStream() |
| 178 | { |
| 179 | m_file = new wxFFile(fileName, "r"); |
| 180 | m_file_destroy = TRUE; |
| 181 | } |
| 182 | |
| 183 | wxFFileInputStream::wxFFileInputStream() |
| 184 | : wxInputStream() |
| 185 | { |
| 186 | m_file_destroy = FALSE; |
| 187 | m_file = NULL; |
| 188 | } |
| 189 | |
| 190 | wxFFileInputStream::wxFFileInputStream(wxFFile& file) |
| 191 | { |
| 192 | m_file = &file; |
| 193 | m_file_destroy = FALSE; |
| 194 | } |
| 195 | |
| 196 | wxFFileInputStream::wxFFileInputStream(FILE *file) |
| 197 | { |
| 198 | m_file = new wxFFile(file); |
| 199 | m_file_destroy = TRUE; |
| 200 | } |
| 201 | |
| 202 | wxFFileInputStream::~wxFFileInputStream() |
| 203 | { |
| 204 | if (m_file_destroy) |
| 205 | delete m_file; |
| 206 | } |
| 207 | |
| 208 | size_t wxFFileInputStream::GetSize() const |
| 209 | { |
| 210 | return m_file->Length(); |
| 211 | } |
| 212 | |
| 213 | size_t wxFFileInputStream::OnSysRead(void *buffer, size_t size) |
| 214 | { |
| 215 | off_t ret; |
| 216 | |
| 217 | ret = m_file->Read(buffer, size); |
| 218 | |
| 219 | if (m_file->Eof()) |
| 220 | m_lasterror = wxStream_EOF; |
| 221 | if (ret == wxInvalidOffset) { |
| 222 | m_lasterror = wxStream_READ_ERR; |
| 223 | ret = 0; |
| 224 | } |
| 225 | |
| 226 | return ret; |
| 227 | } |
| 228 | |
| 229 | off_t wxFFileInputStream::OnSysSeek(off_t pos, wxSeekMode mode) |
| 230 | { |
| 231 | return m_file->Seek(pos, mode); |
| 232 | } |
| 233 | |
| 234 | off_t wxFFileInputStream::OnSysTell() const |
| 235 | { |
| 236 | return m_file->Tell(); |
| 237 | } |
| 238 | |
| 239 | // ---------------------------------------------------------------------------- |
| 240 | // wxFFileOutputStream |
| 241 | // ---------------------------------------------------------------------------- |
| 242 | |
| 243 | wxFFileOutputStream::wxFFileOutputStream(const wxString& fileName) |
| 244 | { |
| 245 | m_file = new wxFFile(fileName, "w+"); |
| 246 | m_file_destroy = TRUE; |
| 247 | } |
| 248 | |
| 249 | wxFFileOutputStream::wxFFileOutputStream(wxFFile& file) |
| 250 | { |
| 251 | m_file = &file; |
| 252 | m_file_destroy = FALSE; |
| 253 | } |
| 254 | |
| 255 | wxFFileOutputStream::wxFFileOutputStream() |
| 256 | : wxOutputStream() |
| 257 | { |
| 258 | m_file_destroy = FALSE; |
| 259 | m_file = NULL; |
| 260 | } |
| 261 | |
| 262 | wxFFileOutputStream::wxFFileOutputStream(FILE *file) |
| 263 | { |
| 264 | m_file = new wxFFile(file); |
| 265 | m_file_destroy = TRUE; |
| 266 | } |
| 267 | |
| 268 | wxFFileOutputStream::~wxFFileOutputStream() |
| 269 | { |
| 270 | if (m_file_destroy) { |
| 271 | Sync(); |
| 272 | delete m_file; |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | size_t wxFFileOutputStream::OnSysWrite(const void *buffer, size_t size) |
| 277 | { |
| 278 | size_t ret = m_file->Write(buffer, size); |
| 279 | if (m_file->Error()) |
| 280 | m_lasterror = wxStream_WRITE_ERR; |
| 281 | else |
| 282 | m_lasterror = wxStream_NOERROR; |
| 283 | return ret; |
| 284 | } |
| 285 | |
| 286 | off_t wxFFileOutputStream::OnSysTell() const |
| 287 | { |
| 288 | return m_file->Tell(); |
| 289 | } |
| 290 | |
| 291 | off_t wxFFileOutputStream::OnSysSeek(off_t pos, wxSeekMode mode) |
| 292 | { |
| 293 | return m_file->Seek(pos, mode); |
| 294 | } |
| 295 | |
| 296 | void wxFFileOutputStream::Sync() |
| 297 | { |
| 298 | wxOutputStream::Sync(); |
| 299 | m_file->Flush(); |
| 300 | } |
| 301 | |
| 302 | size_t wxFFileOutputStream::GetSize() const |
| 303 | { |
| 304 | return m_file->Length(); |
| 305 | } |
| 306 | |
| 307 | // ---------------------------------------------------------------------------- |
| 308 | // wxFFileStream |
| 309 | // ---------------------------------------------------------------------------- |
| 310 | wxFFileStream::wxFFileStream(const wxString& fileName) |
| 311 | : wxFFileInputStream(fileName), wxFFileOutputStream(*wxFFileInputStream::m_file) |
| 312 | { |
| 313 | } |
| 314 | #endif |
| 315 | // wxUSE_STREAMS && wxUSE_FILE |
| 316 | |