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libgnomevfs2-mythtv/modules/mythtv-method.c
author melunko
Thu Oct 25 18:40:14 2007 +0100 (2007-10-25)
branchtrunk
changeset 871 49947675bace
parent 753 8ee634511c1e
permissions -rwxr-xr-x
[svn r877] gmyth-dbus configure.ac: package renamed from myth-dbus to gmyth-dbus 
     1 /*

     2  * @author Hallyson Melo <hallyson.melo@indt.org.br>

     3  *

     4  * This program is free software; you can redistribute it and/or modify

     5  * it under the terms of the GNU Lesser General Public License as published by

     6  * the Free Software Foundation; either version 2 of the License, or

     7  * (at your option) any later version.

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU Lesser General Public License

    15  * along with this program; if not, write to the Free Software

    16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    17  */

    18 

    19 #ifdef HAVE_CONFIG_H

    20 #include <config.h>

    21 #endif

    22 

    23 #include <string.h>

    24 #include <glib.h>

    25 #include <glib/gprintf.h>

    26 #include <glib/gstdio.h>

    27 #include <math.h>

    28 

    29 #include <libgnomevfs/gnome-vfs-module.h>

    30 #include <libgnomevfs/gnome-vfs-utils.h>

    31 

    32 #include <gmyth/gmyth_file.h>

    33 #include <gmyth/gmyth_file_transfer.h>

    34 #include <gmyth/gmyth_file_local.h>

    35 #include <gmyth/gmyth_livetv.h>

    36 #include <gmyth/gmyth_uri.h>

    37 #include <gmyth/gmyth_recorder.h>

    38 #include <gmyth/gmyth_backendinfo.h>

    39 #include <gmyth/gmyth_util.h>

    40 #include <gmyth/gmyth_remote_util.h>

    41 #include <gmyth/gmyth_tvchain.h>

    42 #include <gmyth/gmyth_programinfo.h>

    43 

    44 #define GST_MYTHTV_ID_NUM               1

    45 #define MYTHTV_VERSION_DEFAULT          30

    46 #define MYTHTV_TRANSFER_MAX_WAITS       100

    47 

    48 /*

    49  * internal GnomeVFS plug-in buffer size ( 120 Kbytes ) 

    50  */

    51 #define MYTHTV_BUFFER_SIZE                          80*1024

    52 /*

    53  * internally sized GnomeVFS plug-in buffer ( 4 Kbytes ) 

    54  */

    55 #define MYTHTV_MAX_VFS_BUFFER_SIZE                  4096

    56 /*

    57  * maximum number of bytes to be requested to the MythTV backend ( 64

    58  * Kbytes ) 

    59  */

    60 #define MYTHTV_MAX_REQUEST_SIZE                     64*1024

    61 

    62 typedef struct {

    63     GMythFile      *file;

    64     GMythLiveTV    *livetv;

    65     GMythBackendInfo *backend_info;

    66     GMythURI       *gmyth_uri;

    67     GMythRecorder  *live_recorder;

    68     gboolean        started;

    69     gint64          offset;

    70 

    71     gboolean        is_livetv;  /* it is, or not a Live TV content

    72                                  * transfer */

    73     gboolean        is_local_file;  /* tell if the file is local to the

    74                                      * current content transfer */

    75 

    76     gchar          *channel_name;

    77 

    78     gint            mythtv_version;

    79     gboolean        configured;

    80 } MythtvHandle;

    81 

    82 

    83 static GnomeVFSResult do_read(GnomeVFSMethod * method,

    84                               GnomeVFSMethodHandle * method_handle,

    85                               gpointer buffer,

    86                               GnomeVFSFileSize num_bytes,

    87                               GnomeVFSFileSize * bytes_read,

    88                               GnomeVFSContext * context);

    89 

    90 static GnomeVFSResult myth_connection_start(MythtvHandle * method_handle);

    91 static void     myth_destroy_handle(MythtvHandle * method_handle);

    92 static GnomeVFSResult myth_handle_new(GnomeVFSURI * uri,

    93                                       MythtvHandle ** method_handle);

    94 static GnomeVFSResult myth_get_file_info(MythtvHandle * myth_handle,

    95                                          GnomeVFSURI * uri,

    96                                          GnomeVFSFileInfo * info);

    97 

    98 static          GnomeVFSResult

    99 myth_handle_new(GnomeVFSURI * uri, MythtvHandle ** method_handle)

   100 {

   101     gchar          *tmp_str1;

   102     gchar          *tmp_str2;

   103 

   104     _GNOME_VFS_METHOD_PARAM_CHECK(*method_handle == NULL);

   105 

   106     if (gnome_vfs_uri_get_host_name(uri) == NULL) {

   107         return GNOME_VFS_ERROR_INVALID_HOST_NAME;

   108     }

   109 

   110     *method_handle = g_new0(MythtvHandle, 1);

   111     (*method_handle)->mythtv_version = MYTHTV_VERSION_DEFAULT;

   112 

   113     (*method_handle)->is_livetv = FALSE;

   114     (*method_handle)->is_local_file = FALSE;

   115 

   116     tmp_str1 = gnome_vfs_uri_to_string(uri, GNOME_VFS_URI_HIDE_NONE);

   117     tmp_str2 = gnome_vfs_unescape_string(tmp_str1, "");

   118 

   119     gchar          *tmp_str3 = strstr(tmp_str2, ".nuv.avi");

   120     if (tmp_str3 != NULL) {

   121         tmp_str3[4] = '\0';

   122     }

   123 

   124     (*method_handle)->backend_info =

   125         gmyth_backend_info_new_with_uri(tmp_str2);

   126     (*method_handle)->gmyth_uri = gmyth_uri_new_with_value(tmp_str2);

   127     g_free(tmp_str1);

   128     g_free(tmp_str2);

   129 

   130     return GNOME_VFS_OK;

   131 }

   132 

   133 static void

   134 myth_destroy_handle(MythtvHandle * method_handle)

   135 {

   136     // TODO: abort if in tranfer state

   137 

   138     if (method_handle->backend_info != NULL) {

   139         g_object_unref(method_handle->backend_info);

   140         method_handle->backend_info = NULL;

   141     }

   142 

   143     if (method_handle->channel_name != NULL) {

   144         g_free(method_handle->channel_name);

   145         method_handle->channel_name = NULL;

   146     }

   147 

   148     if (method_handle->livetv != NULL) {

   149         g_object_unref(method_handle->livetv);

   150         method_handle->livetv = NULL;

   151     }

   152 

   153     if (method_handle->file != NULL) {

   154         g_object_unref(method_handle->file);

   155         method_handle->file = NULL;

   156     }

   157 

   158     if (method_handle->gmyth_uri != NULL) {

   159         g_object_unref(method_handle->gmyth_uri);

   160         method_handle->gmyth_uri = NULL;

   161     }

   162 

   163     g_free(method_handle);

   164 }

   165 

   166 static          GnomeVFSResult

   167 myth_get_file_info(MythtvHandle * myth_handle,

   168                    GnomeVFSURI * uri, GnomeVFSFileInfo * info)

   169 {

   170     GMythURI       *gmyth_uri;

   171     GMythBackendInfo *backend_info;

   172     gboolean        is_livetv;

   173     gboolean        is_local;

   174 

   175     _GNOME_VFS_METHOD_PARAM_CHECK(info != NULL);

   176 

   177     g_debug("%s - %d", __FUNCTION__, __LINE__);

   178 

   179     if (myth_handle == NULL) {

   180         gchar          *tmp_str1;

   181         gchar          *tmp_str2;

   182 

   183         tmp_str1 = gnome_vfs_uri_to_string(uri, GNOME_VFS_URI_HIDE_NONE);

   184         tmp_str2 = gnome_vfs_unescape_string(tmp_str1, "");

   185 

   186         backend_info = gmyth_backend_info_new_with_uri(tmp_str2);

   187         gmyth_uri = gmyth_uri_new_with_value(tmp_str2);

   188 

   189         g_free(tmp_str1);

   190         g_free(tmp_str2);

   191     } else {

   192         backend_info = g_object_ref(myth_handle->backend_info);

   193         gmyth_uri = g_object_ref(myth_handle->gmyth_uri);

   194     }

   195 

   196     info->valid_fields = 0;

   197     info->valid_fields = GNOME_VFS_FILE_INFO_FIELDS_TYPE |

   198         GNOME_VFS_FILE_INFO_FIELDS_MIME_TYPE |

   199         GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;

   200 

   201     info->type = GNOME_VFS_FILE_TYPE_REGULAR;

   202 

   203     /*

   204      * fixme: get from file extension? 

   205      */

   206     info->mime_type = g_strdup("video/x-nuv");

   207     info->permissions = GNOME_VFS_PERM_USER_READ |

   208         GNOME_VFS_PERM_OTHER_READ | GNOME_VFS_PERM_GROUP_READ;

   209 

   210     info->name = g_strdup(gmyth_uri_get_path(gmyth_uri));

   211 

   212     /*

   213      * file size for remote files 

   214      */

   215     is_livetv = gmyth_uri_is_livetv(gmyth_uri);

   216 

   217     if (is_livetv == FALSE) {

   218         GMythFile      *file = NULL;

   219         gboolean        ret = FALSE;

   220 

   221         /*

   222          * Verifies if the file exists 

   223          */

   224         if (!gmyth_util_file_exists(backend_info,

   225                                     gmyth_uri_get_path(gmyth_uri))) {

   226             g_object_unref(file);

   227             g_object_unref(backend_info);

   228             g_debug("NOT FOUND %s/%d", __FUNCTION__, __LINE__);

   229             return GNOME_VFS_ERROR_NOT_FOUND;

   230         }

   231 

   232         is_local = gmyth_uri_is_local_file(gmyth_uri);

   233         if (is_local == TRUE) {

   234             file = GMYTH_FILE(gmyth_file_local_new(backend_info));

   235             ret = gmyth_file_local_open(GMYTH_FILE_LOCAL(file));

   236         } else {

   237             file = GMYTH_FILE(gmyth_file_transfer_new(backend_info));

   238             ret = gmyth_file_transfer_open(GMYTH_FILE_TRANSFER(file),

   239                                            gmyth_uri_get_path(gmyth_uri));

   240         }

   241 

   242         if (!ret) {

   243             g_object_unref(file);

   244             g_object_unref(backend_info);

   245             g_debug("NOT FOUND %s/%d", __FUNCTION__, __LINE__);

   246             return GNOME_VFS_ERROR_NOT_FOUND;

   247         }

   248 

   249         info->size = gmyth_file_get_filesize(file);

   250         info->valid_fields |= GNOME_VFS_FILE_INFO_FIELDS_SIZE;

   251         g_object_unref(file);

   252     }

   253 

   254     g_object_unref(backend_info);

   255     g_object_unref(gmyth_uri);

   256 

   257     return GNOME_VFS_OK;

   258 }

   259 

   260 static          GnomeVFSResult

   261 myth_connection_start(MythtvHandle * method_handle)

   262 {

   263     GnomeVFSResult  result = GNOME_VFS_OK;

   264 

   265     _GNOME_VFS_METHOD_PARAM_CHECK(method_handle != NULL);

   266     _GNOME_VFS_METHOD_PARAM_CHECK(method_handle->backend_info != NULL);

   267 

   268     /*

   269      * Connect to the backend 

   270      */

   271     if ((method_handle->is_livetv =

   272          gmyth_uri_is_livetv(method_handle->gmyth_uri)) == TRUE) {

   273         method_handle->livetv =

   274             gmyth_livetv_new(method_handle->backend_info);

   275         method_handle->channel_name =

   276             gmyth_uri_get_channel_name(method_handle->gmyth_uri);

   277 

   278         if (method_handle->channel_name != NULL) {

   279             if (gmyth_livetv_channel_name_setup(method_handle->livetv,

   280                                                 method_handle->

   281                                                 channel_name) == FALSE) {

   282                 result = GNOME_VFS_ERROR_INVALID_URI;

   283                 goto error;

   284             }

   285         } else if (gmyth_livetv_setup(method_handle->livetv) == FALSE) {

   286             result = GNOME_VFS_ERROR_INVALID_URI;

   287             goto error;

   288         }

   289 

   290 

   291         method_handle->file =

   292             GMYTH_FILE(gmyth_livetv_create_file_transfer

   293                        (method_handle->livetv));

   294 

   295         if (method_handle->file == NULL) {

   296             result = GNOME_VFS_ERROR_INVALID_URI;

   297             g_debug("MythTV FileTransfer is NULL!\n");

   298             goto error;

   299         }

   300 

   301         if (!gmyth_file_transfer_open

   302             (GMYTH_FILE_TRANSFER(method_handle->file),

   303              method_handle->livetv->uri !=

   304              NULL ? gmyth_uri_get_path(method_handle->livetv->

   305                                        uri) : method_handle->livetv->

   306              proginfo->pathname->str)) {

   307 

   308             g_debug("Couldn't open MythTV FileTransfer is NULL!\n");

   309             result = GNOME_VFS_ERROR_NOT_OPEN;

   310             goto error;

   311         }

   312     } else {

   313         gboolean        ret = TRUE;

   314         /*

   315          * Verifies if the file exists 

   316          */

   317         if (!gmyth_util_file_exists(method_handle->backend_info,

   318                                     gmyth_uri_get_path(method_handle->

   319                                                        gmyth_uri))) {

   320 

   321             g_debug("NOT FOUND %s/%d", __FUNCTION__, __LINE__);

   322             goto error;

   323         }

   324 

   325         if ((method_handle->is_local_file =

   326              gmyth_uri_is_local_file(method_handle->gmyth_uri)) == TRUE) {

   327             method_handle->file =

   328                 GMYTH_FILE(gmyth_file_local_new

   329                            (method_handle->backend_info));

   330             ret =

   331                 gmyth_file_local_open(GMYTH_FILE_LOCAL

   332                                       (method_handle->file));

   333         } else {

   334             method_handle->file =

   335                 GMYTH_FILE(gmyth_file_transfer_new

   336                            (method_handle->backend_info));

   337             ret =

   338                 gmyth_file_transfer_open(GMYTH_FILE_TRANSFER

   339                                          (method_handle->file),

   340                                          gmyth_uri_get_path(method_handle->

   341                                                             gmyth_uri));

   342         }

   343 

   344         /*

   345          * sets the Playback monitor connection 

   346          */

   347         if (!ret) {

   348 

   349             g_debug("NOT FOUND %s/%d", __FUNCTION__, __LINE__);

   350             result = GNOME_VFS_ERROR_NOT_FOUND;

   351             goto error;

   352         }

   353     }                           /* if - LiveTV or not? */

   354 

   355     method_handle->configured = TRUE;

   356 

   357     if (method_handle->file == NULL) {

   358         result = GNOME_VFS_ERROR_NOT_OPEN;

   359     }

   360 

   361   error:

   362 

   363     return result;

   364 }

   365 

   366 static          GnomeVFSResult

   367 do_open(GnomeVFSMethod * method,

   368         GnomeVFSMethodHandle ** method_handle,

   369         GnomeVFSURI * uri, GnomeVFSOpenMode mode,

   370         GnomeVFSContext * context)

   371 {

   372     MythtvHandle   *myth_handle = NULL;

   373     GnomeVFSResult  result = GNOME_VFS_OK;

   374 

   375     _GNOME_VFS_METHOD_PARAM_CHECK(method_handle != NULL);

   376     _GNOME_VFS_METHOD_PARAM_CHECK(uri != NULL);

   377 

   378     if (mode & GNOME_VFS_OPEN_WRITE) {

   379         return GNOME_VFS_ERROR_INVALID_OPEN_MODE;

   380     }

   381 

   382     result = myth_handle_new(uri, &myth_handle);

   383     if (result != GNOME_VFS_OK)

   384         return result;

   385 

   386     result = myth_connection_start(myth_handle);

   387     if (result != GNOME_VFS_OK) {

   388         myth_destroy_handle(myth_handle);

   389         myth_handle = NULL;

   390         return result;

   391     }

   392 

   393     *method_handle = (GnomeVFSMethodHandle *) myth_handle;

   394 

   395     return result;

   396 }

   397 

   398 static          GnomeVFSResult

   399 do_create(GnomeVFSMethod * method,

   400           GnomeVFSMethodHandle ** method_handle,

   401           GnomeVFSURI * uri,

   402           GnomeVFSOpenMode mode,

   403           gboolean exclusive, guint perm, GnomeVFSContext * context)

   404 {

   405     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   406 }

   407 

   408 static          GnomeVFSResult

   409 do_close(GnomeVFSMethod * method,

   410          GnomeVFSMethodHandle * method_handle, GnomeVFSContext * context)

   411 {

   412     MythtvHandle   *myth_handle = (MythtvHandle *) method_handle;

   413 

   414     myth_destroy_handle(myth_handle);

   415 

   416     return GNOME_VFS_OK;

   417 }

   418 

   419 

   420 static          GnomeVFSResult

   421 do_read(GnomeVFSMethod * method,

   422         GnomeVFSMethodHandle * method_handle,

   423         gpointer buffer,

   424         GnomeVFSFileSize num_bytes,

   425         GnomeVFSFileSize * bytes_read, GnomeVFSContext * context)

   426 {

   427     GnomeVFSResult  retval = GNOME_VFS_OK;

   428     MythtvHandle   *myth_handle;

   429     GMythFileReadResult result;

   430     GByteArray     *myth_buffer = g_byte_array_new();

   431 

   432     _GNOME_VFS_METHOD_PARAM_CHECK(method_handle != NULL);

   433 

   434     myth_handle = (MythtvHandle *) method_handle;

   435     if (myth_handle->is_local_file)

   436         result = gmyth_file_local_read(GMYTH_FILE_LOCAL(myth_handle->file),

   437                                        myth_buffer,

   438                                        num_bytes, myth_handle->is_livetv);

   439     else

   440         result =

   441             gmyth_file_transfer_read(GMYTH_FILE_TRANSFER

   442                                      (myth_handle->file), myth_buffer,

   443                                      num_bytes, myth_handle->is_livetv);

   444 

   445     if (result == GMYTH_FILE_READ_ERROR) {

   446         retval = GNOME_VFS_ERROR_IO;

   447     }

   448 

   449     if (result == GMYTH_FILE_READ_EOF) {

   450         retval = GNOME_VFS_ERROR_EOF;

   451     }

   452 

   453     if (myth_buffer->len > 0) {

   454         g_memmove(buffer, myth_buffer->data, myth_buffer->len);

   455         *bytes_read = (GnomeVFSFileSize) myth_buffer->len;

   456         myth_handle->offset += myth_buffer->len;

   457         g_byte_array_free(myth_buffer, TRUE);

   458     }

   459 

   460     return retval;

   461 }

   462 

   463 static          GnomeVFSResult

   464 do_write(GnomeVFSMethod * method,

   465          GnomeVFSMethodHandle * method_handle,

   466          gconstpointer buffer,

   467          GnomeVFSFileSize num_bytes,

   468          GnomeVFSFileSize * bytes_written, GnomeVFSContext * context)

   469 {

   470     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   471 }

   472 

   473 static          GnomeVFSResult

   474 do_seek(GnomeVFSMethod * method,

   475         GnomeVFSMethodHandle * method_handle,

   476         GnomeVFSSeekPosition whence,

   477         GnomeVFSFileOffset offset, GnomeVFSContext * context)

   478 {

   479     MythtvHandle   *myth_handle;

   480     guint64         whence_p = 0;

   481     gint64          new_offset = 0;

   482 

   483     _GNOME_VFS_METHOD_PARAM_CHECK(method_handle != NULL);

   484 

   485     myth_handle = (MythtvHandle *) method_handle;

   486 

   487     g_debug("seek offset %" G_GINT64_FORMAT " whence %d", offset, whence);

   488 

   489     if (gmyth_uri_is_livetv(myth_handle->gmyth_uri))

   490         return GNOME_VFS_ERROR_NOT_SUPPORTED;

   491 

   492     switch (whence) {

   493     case GNOME_VFS_SEEK_START:

   494         whence_p = 0;

   495         break;

   496     case GNOME_VFS_SEEK_CURRENT:

   497         whence_p = myth_handle->offset;

   498         break;

   499     case GNOME_VFS_SEEK_END:

   500         return GNOME_VFS_ERROR_NOT_SUPPORTED;

   501     }

   502 

   503     new_offset =

   504         gmyth_file_transfer_seek(myth_handle->file, offset, whence_p);

   505     if (new_offset != 0) {

   506         myth_handle->offset = new_offset;

   507         return GNOME_VFS_OK;

   508     }

   509 

   510     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   511 }

   512 

   513 static          GnomeVFSResult

   514 do_tell(GnomeVFSMethod * method,

   515         GnomeVFSMethodHandle * method_handle,

   516         GnomeVFSFileSize * offset_return)

   517 {

   518     MythtvHandle   *myth_handle = NULL;

   519 

   520     _GNOME_VFS_METHOD_PARAM_CHECK(method_handle != NULL);

   521 

   522     myth_handle = (MythtvHandle *) method_handle;

   523     *offset_return = myth_handle->offset;

   524 

   525     return GNOME_VFS_OK;

   526 }

   527 

   528 static          GnomeVFSResult

   529 do_truncate_handle(GnomeVFSMethod * method,

   530                    GnomeVFSMethodHandle * method_handle,

   531                    GnomeVFSFileSize where, GnomeVFSContext * context)

   532 {

   533     return GNOME_VFS_ERROR_READ_ONLY;

   534 }

   535 

   536 static          GnomeVFSResult

   537 do_open_directory(GnomeVFSMethod * method,

   538                   GnomeVFSMethodHandle ** method_handle,

   539                   GnomeVFSURI * uri,

   540                   GnomeVFSFileInfoOptions options,

   541                   GnomeVFSContext * context)

   542 {

   543     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   544 }

   545 

   546 static          GnomeVFSResult

   547 do_close_directory(GnomeVFSMethod * method,

   548                    GnomeVFSMethodHandle * method_handle,

   549                    GnomeVFSContext * context)

   550 {

   551     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   552 }

   553 

   554 static          GnomeVFSResult

   555 do_read_directory(GnomeVFSMethod * method,

   556                   GnomeVFSMethodHandle * method_handle,

   557                   GnomeVFSFileInfo * file_info, GnomeVFSContext * context)

   558 {

   559     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   560 }

   561 

   562 

   563 static          GnomeVFSResult

   564 do_get_file_info(GnomeVFSMethod * method,

   565                  GnomeVFSURI * uri,

   566                  GnomeVFSFileInfo * file_info,

   567                  GnomeVFSFileInfoOptions options,

   568                  GnomeVFSContext * context)

   569 {

   570     return myth_get_file_info(NULL, uri, file_info);

   571 }

   572 

   573 static          GnomeVFSResult

   574 do_get_file_info_from_handle(GnomeVFSMethod * method,

   575                              GnomeVFSMethodHandle * method_handle,

   576                              GnomeVFSFileInfo * file_info,

   577                              GnomeVFSFileInfoOptions options,

   578                              GnomeVFSContext * context)

   579 {

   580     MythtvHandle   *myth_handle = (MythtvHandle *) method_handle;

   581 

   582     return myth_get_file_info(myth_handle, NULL, file_info);

   583 }

   584 

   585 static          gboolean

   586 do_is_local(GnomeVFSMethod * method, const GnomeVFSURI * uri)

   587 {

   588     return FALSE;

   589 }

   590 

   591 static          GnomeVFSResult

   592 do_make_directory(GnomeVFSMethod * method,

   593                   GnomeVFSURI * uri, guint perm, GnomeVFSContext * context)

   594 {

   595     return GNOME_VFS_ERROR_READ_ONLY;

   596 }

   597 

   598 static          GnomeVFSResult

   599 do_remove_directory(GnomeVFSMethod * method,

   600                     GnomeVFSURI * uri, GnomeVFSContext * context)

   601 {

   602     return GNOME_VFS_ERROR_READ_ONLY;

   603 }

   604 

   605 static          GnomeVFSResult

   606 do_move(GnomeVFSMethod * method,

   607         GnomeVFSURI * old_uri,

   608         GnomeVFSURI * new_uri,

   609         gboolean force_replace, GnomeVFSContext * context)

   610 {

   611     return GNOME_VFS_ERROR_READ_ONLY;

   612 }

   613 

   614 static          GnomeVFSResult

   615 do_unlink(GnomeVFSMethod * method,

   616           GnomeVFSURI * uri, GnomeVFSContext * context)

   617 {

   618     return GNOME_VFS_ERROR_READ_ONLY;

   619 }

   620 

   621 static          GnomeVFSResult

   622 do_check_same_fs(GnomeVFSMethod * method,

   623                  GnomeVFSURI * a,

   624                  GnomeVFSURI * b,

   625                  gboolean * same_fs_return, GnomeVFSContext * context)

   626 {

   627     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   628 }

   629 

   630 static          GnomeVFSResult

   631 do_set_file_info(GnomeVFSMethod * method,

   632                  GnomeVFSURI * uri,

   633                  const GnomeVFSFileInfo * info,

   634                  GnomeVFSSetFileInfoMask mask, GnomeVFSContext * context)

   635 {

   636     return GNOME_VFS_ERROR_READ_ONLY;

   637 }

   638 

   639 static          GnomeVFSResult

   640 do_truncate(GnomeVFSMethod * method,

   641             GnomeVFSURI * uri,

   642             GnomeVFSFileSize where, GnomeVFSContext * context)

   643 {

   644     return GNOME_VFS_ERROR_READ_ONLY;

   645 }

   646 

   647 static          GnomeVFSResult

   648 do_find_directory(GnomeVFSMethod * method,

   649                   GnomeVFSURI * near_uri,

   650                   GnomeVFSFindDirectoryKind kind,

   651                   GnomeVFSURI ** result_uri,

   652                   gboolean create_if_needed,

   653                   gboolean find_if_needed,

   654                   guint permissions, GnomeVFSContext * context)

   655 {

   656     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   657 }

   658 

   659 static          GnomeVFSResult

   660 do_create_symbolic_link(GnomeVFSMethod * method,

   661                         GnomeVFSURI * uri,

   662                         const char *target_reference,

   663                         GnomeVFSContext * context)

   664 {

   665     return GNOME_VFS_ERROR_READ_ONLY;

   666 }

   667 

   668 static          GnomeVFSResult

   669 do_monitor_add(GnomeVFSMethod * method,

   670                GnomeVFSMethodHandle ** method_handle_return,

   671                GnomeVFSURI * uri, GnomeVFSMonitorType monitor_type)

   672 {

   673     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   674 }

   675 

   676 static          GnomeVFSResult

   677 do_monitor_cancel(GnomeVFSMethod * method,

   678                   GnomeVFSMethodHandle * method_handle)

   679 {

   680     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   681 }

   682 

   683 static          GnomeVFSResult

   684 do_file_control(GnomeVFSMethod * method,

   685                 GnomeVFSMethodHandle * method_handle,

   686                 const char *operation,

   687                 gpointer operation_data, GnomeVFSContext * context)

   688 {

   689     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   690 }

   691 

   692 static GnomeVFSMethod method = {

   693     sizeof(GnomeVFSMethod),

   694     do_open,

   695     do_create,

   696     do_close,

   697     do_read,

   698     do_write,

   699     do_seek,

   700     do_tell,

   701     do_truncate_handle,

   702     do_open_directory,

   703     do_close_directory,

   704     do_read_directory,

   705     do_get_file_info,

   706     do_get_file_info_from_handle,

   707     do_is_local,

   708     do_make_directory,

   709     do_remove_directory,

   710     do_move,

   711     do_unlink,

   712     do_check_same_fs,

   713     do_set_file_info,

   714     do_truncate,

   715     do_find_directory,

   716     do_create_symbolic_link,

   717     do_monitor_add,

   718     do_monitor_cancel,

   719     do_file_control

   720 };

   721 

   722 

   723 GnomeVFSMethod *

   724 vfs_module_init(const char *method_name, const char *args)

   725 {

   726     return &method;

   727 }

   728 

   729 void

   730 vfs_module_shutdown(GnomeVFSMethod * method)

   731 {

   732 }
gmyth