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libgnomevfs2-mythtv/modules/mythtv-method.c
author morphbr
Thu Apr 19 16:02:10 2007 +0100 (2007-04-19)
branchtrunk
changeset 572 0bc04f7e67e6
parent 507 178207a9cd61
child 606 45798efca6ef
permissions -rwxr-xr-x
[svn r577] - Bug fix Gmyth-Streamer 
     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 /* internal GnomeVFS plug-in buffer size ( 120 Kbytes ) */

    49 #define MYTHTV_BUFFER_SIZE                          80*1024

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

    51 #define MYTHTV_MAX_VFS_BUFFER_SIZE                  4096

    52 /* maximum number of bytes to be requested to the MythTV backend ( 64 Kbytes ) */

    53 #define MYTHTV_MAX_REQUEST_SIZE                     64*1024

    54 

    55 typedef struct {

    56 	GMythFile *file;

    57 	GMythLiveTV *livetv;

    58     GMythBackendInfo *backend_info;

    59     GMythURI *gmyth_uri;

    60     GMythRecorder *live_recorder;

    61     gboolean started;

    62     gint64 offset;

    63 

    64 	gchar *channel_name;

    65 

    66 	gint mythtv_version;

    67 	gboolean configured;

    68 } MythtvHandle;

    69 

    70 

    71 static GnomeVFSResult do_read (GnomeVFSMethod * method,

    72 			       GnomeVFSMethodHandle * method_handle,

    73 			       gpointer buffer,

    74 			       GnomeVFSFileSize num_bytes,

    75 			       GnomeVFSFileSize * bytes_read,

    76 			       GnomeVFSContext * context);

    77 

    78 static GnomeVFSResult   myth_connection_start   (MythtvHandle * method_handle);

    79 static void             myth_destroy_handle     (MythtvHandle * method_handle);

    80 static GnomeVFSResult   myth_handle_new         (GnomeVFSURI * uri,

    81                                                  MythtvHandle ** method_handle);

    82 static GnomeVFSResult   myth_get_file_info      (MythtvHandle * myth_handle,

    83                                                  GnomeVFSURI * uri,

    84                                                  GnomeVFSFileInfo * info);

    85 

    86 static GnomeVFSResult 

    87 myth_handle_new (GnomeVFSURI * uri,

    88                  MythtvHandle ** method_handle)

    89 {   

    90     gchar *tmp_str1;

    91     gchar *tmp_str2;

    92 

    93     _GNOME_VFS_METHOD_PARAM_CHECK (*method_handle == NULL);

    94     

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

    96 		return GNOME_VFS_ERROR_INVALID_HOST_NAME;

    97 	}

    98 

    99     *method_handle = g_new0 (MythtvHandle, 1);

   100     (*method_handle)->mythtv_version = MYTHTV_VERSION_DEFAULT;

   101         

   102     tmp_str1 = gnome_vfs_uri_to_string (uri, GNOME_VFS_URI_HIDE_NONE);

   103     tmp_str2 = gnome_vfs_unescape_string (tmp_str1, "");

   104 

   105     (*method_handle)->backend_info = gmyth_backend_info_new_with_uri (tmp_str2);

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

   107     g_free (tmp_str1);

   108     g_free (tmp_str2);

   109 

   110     return GNOME_VFS_OK;

   111 }   

   112 

   113 static void

   114 myth_destroy_handle (MythtvHandle * method_handle)

   115 {

   116     //TODO: abort if in tranfer state

   117     

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

   119         g_object_unref (method_handle->backend_info);

   120         method_handle->backend_info = NULL;

   121     }

   122     

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

   124         g_free (method_handle->channel_name);

   125         method_handle->channel_name = NULL;

   126     }

   127 

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

   129         g_object_unref (method_handle->livetv);

   130         method_handle->livetv = NULL;

   131     }

   132 

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

   134         g_object_unref (method_handle->file);

   135         method_handle->file = NULL;

   136     }

   137 

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

   139         g_object_unref (method_handle->gmyth_uri);

   140         method_handle->gmyth_uri = NULL;

   141     }

   142 

   143     g_free (method_handle);

   144 }

   145 

   146 static GnomeVFSResult

   147 myth_get_file_info (MythtvHandle * myth_handle,

   148                     GnomeVFSURI * uri,

   149                     GnomeVFSFileInfo * info)

   150 {

   151     GMythURI *gmyth_uri;

   152     GMythBackendInfo *backend_info;

   153     

   154     _GNOME_VFS_METHOD_PARAM_CHECK (info != NULL);

   155     

   156 

   157     if (myth_handle == NULL) {

   158         gchar *tmp_str1;

   159         gchar *tmp_str2;

   160         

   161         tmp_str1 = gnome_vfs_uri_to_string (uri, GNOME_VFS_URI_HIDE_NONE);

   162         tmp_str2 = gnome_vfs_unescape_string (tmp_str1, "");

   163 

   164         backend_info = gmyth_backend_info_new_with_uri (tmp_str2);

   165         gmyth_uri = gmyth_uri_new_with_value (tmp_str2);

   166         

   167         g_free (tmp_str1);

   168         g_free (tmp_str2);

   169     } else {

   170         backend_info = g_object_ref (myth_handle->backend_info);

   171         gmyth_uri = g_object_ref (myth_handle->gmyth_uri);

   172     }

   173 

   174     info->valid_fields = 0;

   175 	info->valid_fields = GNOME_VFS_FILE_INFO_FIELDS_TYPE | 

   176         GNOME_VFS_FILE_INFO_FIELDS_MIME_TYPE | 

   177         GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;

   178     

   179 	info->type = GNOME_VFS_FILE_TYPE_REGULAR;

   180     

   181 	/* fixme: get from file extension? */

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

   183 	info->permissions = GNOME_VFS_PERM_USER_READ | 

   184         GNOME_VFS_PERM_OTHER_READ | 

   185         GNOME_VFS_PERM_GROUP_READ;

   186 

   187    

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

   189 

   190     /* file size for remote files */

   191     if (gmyth_uri_is_livetv (gmyth_uri) == FALSE) {

   192         GMythFile *file = NULL;

   193         gboolean ret = FALSE;

   194 

   195         /* Verifies if the file exists */

   196         if (!gmyth_util_file_exists (backend_info, 

   197                     gmyth_uri_get_path (gmyth_uri))) {

   198             g_object_unref (file);

   199             g_object_unref (backend_info);

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

   201             return GNOME_VFS_ERROR_NOT_FOUND;

   202 		}

   203 

   204         if ( gmyth_uri_is_local_file(gmyth_uri) )

   205         {

   206           file = GMYTH_FILE( gmyth_file_local_new(backend_info) );

   207           ret = gmyth_file_local_open ( GMYTH_FILE_LOCAL( file ) );

   208         } else {

   209           file = GMYTH_FILE( gmyth_file_transfer_new(backend_info) );

   210           ret = gmyth_file_transfer_open ( GMYTH_FILE_TRANSFER(file), gmyth_uri_get_path (gmyth_uri));

   211         }

   212 

   213         if (!ret) {

   214             g_object_unref (file);

   215             g_object_unref (backend_info);

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

   217             return GNOME_VFS_ERROR_NOT_FOUND;

   218         }

   219 	

   220 		info->size = gmyth_file_get_filesize (file);

   221         info->valid_fields |= GNOME_VFS_FILE_INFO_FIELDS_SIZE;

   222 		g_object_unref (file);

   223 	}

   224 

   225     g_object_unref (backend_info);

   226     g_object_unref (gmyth_uri);

   227     

   228     return GNOME_VFS_OK;

   229 }

   230 

   231 static GnomeVFSResult

   232 myth_connection_start (MythtvHandle * method_handle)

   233 {

   234     GnomeVFSResult result = GNOME_VFS_OK;

   235 

   236     _GNOME_VFS_METHOD_PARAM_CHECK (method_handle != NULL);

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

   238 

   239 	/* Connect to the backend */

   240 	if (gmyth_uri_is_livetv (method_handle->gmyth_uri) == TRUE) {

   241 		method_handle->livetv = gmyth_livetv_new (method_handle->backend_info);

   242 		method_handle->channel_name = gmyth_uri_get_channel_name (method_handle->gmyth_uri);

   243         

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

   245 		    if (gmyth_livetv_channel_name_setup (method_handle->livetv, 

   246                     method_handle->channel_name) == FALSE) {

   247                 result = GNOME_VFS_ERROR_INVALID_URI;

   248     			goto error;

   249 			}

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

   251                 result = GNOME_VFS_ERROR_INVALID_URI;

   252                 goto error;

   253 		}

   254         

   255 

   256     	method_handle->file = 

   257             GMYTH_FILE( gmyth_livetv_create_file_transfer (method_handle->livetv) );

   258 

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

   260             result = GNOME_VFS_ERROR_INVALID_URI;

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

   262             goto error;

   263         }

   264 

   265 	    if (!gmyth_file_transfer_open ( GMYTH_FILE_TRANSFER(method_handle->file),

   266                                         method_handle->livetv->uri != NULL ? 

   267                                         gmyth_uri_get_path (method_handle->livetv->uri) :

   268                                         method_handle->livetv->proginfo->pathname->str)) {

   269         

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

   271             result = GNOME_VFS_ERROR_NOT_OPEN;

   272             goto error;

   273         }

   274     }

   275     else {

   276         gboolean ret = TRUE;

   277 		/* Verifies if the file exists */

   278 		if (!gmyth_util_file_exists (method_handle->backend_info, 

   279                     gmyth_uri_get_path (method_handle->gmyth_uri))) {

   280 

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

   282             goto error;

   283 		}

   284         

   285         if ( gmyth_uri_is_local_file(method_handle->gmyth_uri) )

   286         {

   287           method_handle->file = GMYTH_FILE( gmyth_file_local_new(method_handle->backend_info) );

   288           ret = gmyth_file_local_open ( GMYTH_FILE_LOCAL( method_handle->file ) );

   289         } else {

   290           method_handle->file = GMYTH_FILE( gmyth_file_transfer_new(method_handle->backend_info) );

   291           ret = gmyth_file_transfer_open ( GMYTH_FILE_TRANSFER(method_handle->file), 

   292                   gmyth_uri_get_path (method_handle->gmyth_uri));

   293         }

   294 

   295 		/* sets the Playback monitor connection */

   296 		if (!ret) {

   297 

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

   299 		    result = GNOME_VFS_ERROR_NOT_FOUND;

   300             goto error;

   301         }

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

   303 

   304 	method_handle->configured = TRUE;    

   305 

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

   307         result = GNOME_VFS_ERROR_NOT_OPEN;

   308     }

   309 

   310 error:

   311     

   312     return result; 

   313 }

   314 

   315 static GnomeVFSResult

   316 do_open (GnomeVFSMethod * method,

   317 	 GnomeVFSMethodHandle ** method_handle,

   318 	 GnomeVFSURI * uri,

   319 	 GnomeVFSOpenMode mode, GnomeVFSContext * context)

   320 {

   321 	MythtvHandle *myth_handle = NULL;

   322     GnomeVFSResult result = GNOME_VFS_OK;

   323 

   324 	_GNOME_VFS_METHOD_PARAM_CHECK (method_handle != NULL);

   325 	_GNOME_VFS_METHOD_PARAM_CHECK (uri != NULL);

   326 

   327 	if (mode & GNOME_VFS_OPEN_WRITE) {

   328 		return GNOME_VFS_ERROR_INVALID_OPEN_MODE;

   329 	}

   330 

   331     result = myth_handle_new (uri, &myth_handle);

   332     if (result != GNOME_VFS_OK) 

   333         return result;

   334 

   335     result = myth_connection_start (myth_handle);

   336     if (result != GNOME_VFS_OK) {

   337         myth_destroy_handle (myth_handle);

   338         myth_handle = NULL;

   339         return result;

   340     }

   341 

   342     *method_handle = (GnomeVFSMethodHandle *) myth_handle;

   343     

   344     return result;

   345 }

   346 

   347 static GnomeVFSResult

   348 do_create (GnomeVFSMethod	 *method,

   349 	   GnomeVFSMethodHandle **method_handle,

   350 	   GnomeVFSURI 		 *uri,

   351 	   GnomeVFSOpenMode 	  mode,

   352 	   gboolean 		  exclusive,

   353 	   guint 		  perm,

   354 	   GnomeVFSContext 	 *context)

   355 {

   356     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   357 }

   358 

   359 static GnomeVFSResult

   360 do_close (GnomeVFSMethod * method,

   361         GnomeVFSMethodHandle * method_handle, 

   362         GnomeVFSContext * context)

   363 {

   364 	MythtvHandle *myth_handle = (MythtvHandle *) method_handle;

   365 

   366     myth_destroy_handle (myth_handle);

   367     

   368 	return GNOME_VFS_OK;

   369 }

   370 

   371 

   372 static GnomeVFSResult

   373 do_read (GnomeVFSMethod * method,

   374 	 GnomeVFSMethodHandle * method_handle,

   375 	 gpointer buffer,

   376 	 GnomeVFSFileSize num_bytes,

   377 	 GnomeVFSFileSize * bytes_read, 

   378          GnomeVFSContext * context)

   379 {

   380     GnomeVFSResult retval = GNOME_VFS_OK;

   381     MythtvHandle *myth_handle;

   382     GMythFileReadResult result;

   383     GByteArray *myth_buffer = g_byte_array_new ();

   384 

   385     _GNOME_VFS_METHOD_PARAM_CHECK (method_handle != NULL);

   386 

   387     myth_handle = (MythtvHandle *) method_handle;

   388     if ( gmyth_uri_is_local_file(myth_handle->gmyth_uri) )

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

   390                                        myth_buffer,

   391                                        num_bytes, gmyth_uri_is_livetv (myth_handle->gmyth_uri));

   392     else

   393         result = gmyth_file_transfer_read ( GMYTH_FILE_TRANSFER(myth_handle->file),

   394                               		   myth_buffer,

   395                              		   num_bytes, gmyth_uri_is_livetv (myth_handle->gmyth_uri));

   396 

   397 

   398     if (result == GMYTH_FILE_READ_ERROR) {

   399         retval = GNOME_VFS_ERROR_IO;

   400     }

   401 

   402     if (result == GMYTH_FILE_READ_EOF) {

   403         retval = GNOME_VFS_ERROR_EOF;

   404     }

   405 

   406     if (myth_buffer->len > 0) {

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

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

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

   410         g_byte_array_free (myth_buffer, TRUE);

   411     } 

   412 

   413 	return retval;

   414 }

   415 

   416 static GnomeVFSResult

   417 do_write (GnomeVFSMethod 	*method,

   418 	  GnomeVFSMethodHandle  *method_handle,

   419 	  gconstpointer 	 buffer,

   420 	  GnomeVFSFileSize 	 num_bytes,

   421 	  GnomeVFSFileSize 	*bytes_written,

   422 	  GnomeVFSContext 	*context)

   423 {

   424     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   425 }

   426 

   427 static GnomeVFSResult

   428 do_seek (GnomeVFSMethod	      *method,

   429 	 GnomeVFSMethodHandle *method_handle,

   430 	 GnomeVFSSeekPosition  whence,

   431 	 GnomeVFSFileOffset    offset,

   432 	 GnomeVFSContext      *context)

   433 {

   434 	MythtvHandle *myth_handle;

   435     //guint64 whence_p = 0;

   436     //gint64 new_offset =0;

   437 

   438      _GNOME_VFS_METHOD_PARAM_CHECK (method_handle != NULL);

   439 

   440      myth_handle = (MythtvHandle *) method_handle;    

   441     

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

   443 

   444     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   445     /*

   446     if (gmyth_uri_is_livetv (myth_handle->gmyth_uri))

   447     

   448     switch (whence)

   449     {

   450         case GNOME_VFS_SEEK_START:

   451             whence_p = 0;

   452             break;

   453         case GNOME_VFS_SEEK_CURRENT:

   454             whence_p = myth_handle->offset;

   455             break;

   456         case GNOME_VFS_SEEK_END:

   457             return GNOME_VFS_ERROR_NOT_SUPPORTED;

   458     }

   459     

   460     new_offset = gmyth_file_transfer_seek (myth_handle->file, offset, whence_p);

   461     if (new_offset != 0) {

   462         myth_handle->offset = new_offset;

   463         return GNOME_VFS_OK;

   464     }

   465 

   466     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   467     */

   468 }

   469 

   470 static GnomeVFSResult

   471 do_tell (GnomeVFSMethod       *method,

   472 	 GnomeVFSMethodHandle *method_handle,

   473 	 GnomeVFSFileSize   *offset_return)

   474 {

   475 	MythtvHandle *myth_handle = NULL;

   476     

   477      _GNOME_VFS_METHOD_PARAM_CHECK (method_handle != NULL);

   478      

   479     myth_handle = (MythtvHandle *) method_handle;

   480     *offset_return = myth_handle->offset;

   481 

   482     return GNOME_VFS_OK;

   483 }

   484 

   485 static GnomeVFSResult

   486 do_truncate_handle (GnomeVFSMethod *method,

   487 		    GnomeVFSMethodHandle *method_handle,

   488 		    GnomeVFSFileSize where,

   489 		    GnomeVFSContext *context)

   490 {

   491     return GNOME_VFS_ERROR_READ_ONLY;

   492 }

   493 

   494 static GnomeVFSResult

   495 do_open_directory (GnomeVFSMethod 	    *method,

   496 		   GnomeVFSMethodHandle    **method_handle,

   497 		   GnomeVFSURI 		    *uri,

   498 		   GnomeVFSFileInfoOptions   options,

   499 		   GnomeVFSContext 	    *context) 

   500 {

   501     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   502 }

   503 

   504 static GnomeVFSResult

   505 do_close_directory (GnomeVFSMethod 	 *method,

   506 		    GnomeVFSMethodHandle *method_handle,

   507 		    GnomeVFSContext 	 *context) 

   508 {

   509     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   510 }

   511 

   512 static GnomeVFSResult

   513 do_read_directory (GnomeVFSMethod 	*method,

   514        		   GnomeVFSMethodHandle *method_handle,

   515        		   GnomeVFSFileInfo 	*file_info,

   516 		   GnomeVFSContext 	*context)

   517 {

   518     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   519 }

   520 

   521 

   522 static GnomeVFSResult

   523 do_get_file_info (GnomeVFSMethod * method,

   524 		  GnomeVFSURI * uri,

   525 		  GnomeVFSFileInfo * file_info,

   526 		  GnomeVFSFileInfoOptions options,

   527 		  GnomeVFSContext * context)

   528 {

   529     return myth_get_file_info (NULL, uri, file_info);

   530 }

   531 

   532 static GnomeVFSResult

   533 do_get_file_info_from_handle (GnomeVFSMethod 		*method,

   534             			      GnomeVFSMethodHandle 	*method_handle,

   535 			                  GnomeVFSFileInfo 		*file_info,

   536             			      GnomeVFSFileInfoOptions    options,

   537 			                  GnomeVFSContext 		*context)

   538 {

   539 	MythtvHandle *myth_handle = (MythtvHandle *) method_handle;

   540 

   541     return myth_get_file_info (myth_handle, NULL, file_info);

   542 }

   543 

   544 static gboolean

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

   546 {

   547 	return FALSE;

   548 }

   549 

   550 static GnomeVFSResult

   551 do_make_directory (GnomeVFSMethod  *method, 

   552 		            GnomeVFSURI     *uri,

   553                     guint 	    perm, 

   554 		            GnomeVFSContext *context) 

   555 {

   556     return GNOME_VFS_ERROR_READ_ONLY;

   557 }

   558 

   559 static GnomeVFSResult 

   560 do_remove_directory (GnomeVFSMethod  *method, 

   561 		             GnomeVFSURI     *uri, 

   562 		             GnomeVFSContext *context) 

   563 {

   564     return GNOME_VFS_ERROR_READ_ONLY;

   565 }

   566 

   567 static GnomeVFSResult

   568 do_move (GnomeVFSMethod  *method,

   569 	 GnomeVFSURI 	 *old_uri,

   570 	 GnomeVFSURI 	 *new_uri,

   571 	 gboolean         force_replace,

   572 	 GnomeVFSContext *context)

   573 {

   574     return GNOME_VFS_ERROR_READ_ONLY;

   575 }

   576 

   577 static GnomeVFSResult 

   578 do_unlink (GnomeVFSMethod  *method,

   579 	   GnomeVFSURI 	   *uri,

   580 	   GnomeVFSContext *context)

   581 {

   582     return GNOME_VFS_ERROR_READ_ONLY;

   583 }

   584 

   585 static GnomeVFSResult 

   586 do_check_same_fs (GnomeVFSMethod  *method,

   587 		  GnomeVFSURI 	  *a,

   588 		  GnomeVFSURI 	  *b,

   589 		  gboolean 	  *same_fs_return,

   590 		  GnomeVFSContext *context)

   591 {

   592     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   593 }

   594 

   595 static GnomeVFSResult

   596 do_set_file_info (GnomeVFSMethod 		*method,

   597 		  GnomeVFSURI 			*uri,

   598 		  const GnomeVFSFileInfo 	*info,

   599 		  GnomeVFSSetFileInfoMask 	 mask,

   600 		  GnomeVFSContext 		*context)

   601 {

   602     return GNOME_VFS_ERROR_READ_ONLY;

   603 }

   604 

   605 static GnomeVFSResult

   606 do_truncate (GnomeVFSMethod *method,

   607 	     GnomeVFSURI *uri,

   608 	     GnomeVFSFileSize where,

   609 	     GnomeVFSContext *context)

   610 {

   611     return GNOME_VFS_ERROR_READ_ONLY;

   612 }

   613 

   614 static GnomeVFSResult

   615 do_find_directory (GnomeVFSMethod *method,

   616 		   GnomeVFSURI *near_uri,

   617 		   GnomeVFSFindDirectoryKind kind,

   618 		   GnomeVFSURI **result_uri,

   619 		   gboolean create_if_needed,

   620 		   gboolean find_if_needed,

   621 		   guint permissions,

   622 		   GnomeVFSContext *context)

   623 {

   624 	return GNOME_VFS_ERROR_NOT_SUPPORTED;

   625 }

   626 

   627 static GnomeVFSResult

   628 do_create_symbolic_link (GnomeVFSMethod *method,

   629 			 GnomeVFSURI *uri,

   630 			 const char *target_reference,

   631 			 GnomeVFSContext *context)

   632 {

   633     return GNOME_VFS_ERROR_READ_ONLY;

   634 }

   635 

   636 static GnomeVFSResult

   637 do_monitor_add (GnomeVFSMethod *method,

   638 		GnomeVFSMethodHandle **method_handle_return,

   639 		GnomeVFSURI *uri,

   640 		GnomeVFSMonitorType monitor_type)

   641 {

   642 	return GNOME_VFS_ERROR_NOT_SUPPORTED;

   643 }

   644 

   645 static GnomeVFSResult

   646 do_monitor_cancel (GnomeVFSMethod *method,

   647 		   GnomeVFSMethodHandle *method_handle)

   648 {

   649 	return GNOME_VFS_ERROR_NOT_SUPPORTED;

   650 }

   651 

   652 static GnomeVFSResult

   653 do_file_control (GnomeVFSMethod *method,

   654 		 GnomeVFSMethodHandle *method_handle,

   655 		 const char *operation,

   656 		 gpointer operation_data,

   657 		 GnomeVFSContext *context)

   658 {

   659 	return GNOME_VFS_ERROR_NOT_SUPPORTED;

   660 }

   661 

   662 static GnomeVFSMethod method = {

   663 	sizeof (GnomeVFSMethod),

   664 	do_open, 

   665 	do_create,

   666 	do_close,

   667 	do_read, 

   668 	do_write,

   669 	do_seek,

   670 	do_tell,

   671 	do_truncate_handle, 

   672 	do_open_directory,

   673 	do_close_directory,

   674 	do_read_directory,

   675 	do_get_file_info,

   676 	do_get_file_info_from_handle,

   677 	do_is_local, 

   678 	do_make_directory, 

   679 	do_remove_directory,

   680 	do_move,

   681 	do_unlink,

   682 	do_check_same_fs,

   683 	do_set_file_info,

   684 	do_truncate, 

   685 	do_find_directory, 

   686 	do_create_symbolic_link,  

   687 	do_monitor_add,  

   688 	do_monitor_cancel,  

   689 	do_file_control 	

   690 };

   691 

   692 

   693 GnomeVFSMethod *

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

   695 {

   696 	return &method;

   697 }

   698 

   699 void

   700 vfs_module_shutdown (GnomeVFSMethod * method)

   701 {

   702 }
gmyth