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libgnomevfs2-mythtv/modules/mythtv-method.c
author rosfran
Tue May 15 21:39:04 2007 +0100 (2007-05-15)
branchtrunk
changeset 655 ad1457d65f74
parent 619 fd06870216b8
child 747 7eeaef26704c
permissions -rwxr-xr-x
[svn r661] Fixed starvation loop when reading an unlimited-size buffer (LiveTV) from the FileTransfer; MonitorHandler is a GThread now. 
     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     gboolean is_livetv; /* it is, or not a Live TV content transfer */

    65     gboolean is_local_file; /* tell if the file is local to the current content transfer */

    66 

    67 	gchar *channel_name;

    68 

    69 	gint mythtv_version;

    70 	gboolean configured;

    71 } MythtvHandle;

    72 

    73 

    74 static GnomeVFSResult do_read (GnomeVFSMethod * method,

    75 			       GnomeVFSMethodHandle * method_handle,

    76 			       gpointer buffer,

    77 			       GnomeVFSFileSize num_bytes,

    78 			       GnomeVFSFileSize * bytes_read,

    79 			       GnomeVFSContext * context);

    80 

    81 static GnomeVFSResult   myth_connection_start   (MythtvHandle * method_handle);

    82 static void             myth_destroy_handle     (MythtvHandle * method_handle);

    83 static GnomeVFSResult   myth_handle_new         (GnomeVFSURI * uri,

    84                                                  MythtvHandle ** method_handle);

    85 static GnomeVFSResult   myth_get_file_info      (MythtvHandle * myth_handle,

    86                                                  GnomeVFSURI * uri,

    87                                                  GnomeVFSFileInfo * info);

    88 

    89 static GnomeVFSResult 

    90 myth_handle_new (GnomeVFSURI * uri,

    91                  MythtvHandle ** method_handle)

    92 {   

    93     gchar *tmp_str1;

    94     gchar *tmp_str2;

    95 

    96     _GNOME_VFS_METHOD_PARAM_CHECK (*method_handle == NULL);

    97     

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

    99 		return GNOME_VFS_ERROR_INVALID_HOST_NAME;

   100 	}

   101 

   102     *method_handle = g_new0 (MythtvHandle, 1);

   103     (*method_handle)->mythtv_version = MYTHTV_VERSION_DEFAULT;

   104     

   105     (*method_handle)->is_livetv = FALSE;

   106     (*method_handle)->is_local_file = FALSE;

   107         

   108     tmp_str1 = gnome_vfs_uri_to_string (uri, GNOME_VFS_URI_HIDE_NONE);

   109     tmp_str2 = gnome_vfs_unescape_string (tmp_str1, "");

   110 

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

   112     if (tmp_str3 != NULL) {

   113         tmp_str3[4] = '\0';

   114     }

   115 

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

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

   118     g_free (tmp_str1);

   119     g_free (tmp_str2);

   120 

   121     return GNOME_VFS_OK;

   122 }   

   123 

   124 static void

   125 myth_destroy_handle (MythtvHandle * method_handle)

   126 {

   127     //TODO: abort if in tranfer state

   128     

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

   130         g_object_unref (method_handle->backend_info);

   131         method_handle->backend_info = NULL;

   132     }

   133     

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

   135         g_free (method_handle->channel_name);

   136         method_handle->channel_name = NULL;

   137     }

   138 

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

   140         g_object_unref (method_handle->livetv);

   141         method_handle->livetv = NULL;

   142     }

   143 

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

   145         g_object_unref (method_handle->file);

   146         method_handle->file = NULL;

   147     }

   148 

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

   150         g_object_unref (method_handle->gmyth_uri);

   151         method_handle->gmyth_uri = NULL;

   152     }

   153 

   154     g_free (method_handle);

   155 }

   156 

   157 static GnomeVFSResult

   158 myth_get_file_info (MythtvHandle * myth_handle,

   159                     GnomeVFSURI * uri,

   160                     GnomeVFSFileInfo * info)

   161 {

   162     GMythURI *gmyth_uri;

   163     GMythBackendInfo *backend_info;

   164     gboolean is_livetv;

   165     gboolean is_local;

   166     

   167     _GNOME_VFS_METHOD_PARAM_CHECK (info != NULL);

   168     

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

   170 

   171     if (myth_handle == NULL) {

   172         gchar *tmp_str1;

   173         gchar *tmp_str2;

   174         

   175         tmp_str1 = gnome_vfs_uri_to_string (uri, GNOME_VFS_URI_HIDE_NONE);

   176         tmp_str2 = gnome_vfs_unescape_string (tmp_str1, "");

   177 

   178         backend_info = gmyth_backend_info_new_with_uri (tmp_str2);

   179         gmyth_uri = gmyth_uri_new_with_value (tmp_str2);

   180         

   181         g_free (tmp_str1);

   182         g_free (tmp_str2);

   183     } else {

   184         backend_info = g_object_ref (myth_handle->backend_info);

   185         gmyth_uri = g_object_ref (myth_handle->gmyth_uri);

   186     }

   187 

   188     info->valid_fields = 0;

   189 	info->valid_fields = GNOME_VFS_FILE_INFO_FIELDS_TYPE | 

   190         GNOME_VFS_FILE_INFO_FIELDS_MIME_TYPE | 

   191         GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;

   192     

   193 	info->type = GNOME_VFS_FILE_TYPE_REGULAR;

   194     

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

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

   197 	info->permissions = GNOME_VFS_PERM_USER_READ | 

   198         GNOME_VFS_PERM_OTHER_READ | 

   199         GNOME_VFS_PERM_GROUP_READ;

   200    

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

   202     

   203     /* file size for remote files */

   204     is_livetv = gmyth_uri_is_livetv (gmyth_uri);

   205     

   206     if (is_livetv == FALSE) {

   207         GMythFile *file = NULL;

   208         gboolean ret = FALSE;

   209 

   210         /* Verifies if the file exists */

   211         if (!gmyth_util_file_exists (backend_info, 

   212                     gmyth_uri_get_path (gmyth_uri))) {

   213             g_object_unref (file);

   214             g_object_unref (backend_info);

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

   216             return GNOME_VFS_ERROR_NOT_FOUND;

   217 		}

   218 

   219         is_local = gmyth_uri_is_local_file (gmyth_uri);

   220         if (is_local == TRUE ) {

   221           file = GMYTH_FILE (gmyth_file_local_new(backend_info));

   222           ret = gmyth_file_local_open (GMYTH_FILE_LOCAL (file));

   223         } else {

   224           file = GMYTH_FILE (gmyth_file_transfer_new(backend_info));

   225           ret = gmyth_file_transfer_open (GMYTH_FILE_TRANSFER(file), 

   226                           gmyth_uri_get_path (gmyth_uri));

   227         }

   228         

   229         if (!ret) {

   230             g_object_unref (file);

   231             g_object_unref (backend_info);

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

   233             return GNOME_VFS_ERROR_NOT_FOUND;

   234         }

   235         

   236 		info->size = gmyth_file_get_filesize (file);

   237         info->valid_fields |= GNOME_VFS_FILE_INFO_FIELDS_SIZE;

   238 		g_object_unref (file);

   239 	}

   240 

   241     g_object_unref (backend_info);

   242     g_object_unref (gmyth_uri);

   243     

   244     return GNOME_VFS_OK;

   245 }

   246 

   247 static GnomeVFSResult

   248 myth_connection_start (MythtvHandle * method_handle)

   249 {

   250     GnomeVFSResult result = GNOME_VFS_OK;

   251 

   252     _GNOME_VFS_METHOD_PARAM_CHECK (method_handle != NULL);

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

   254 

   255 	/* Connect to the backend */

   256 	if ( ( method_handle->is_livetv = gmyth_uri_is_livetv (method_handle->gmyth_uri) ) == TRUE) {

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

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

   259         

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

   261 		    if (gmyth_livetv_channel_name_setup (method_handle->livetv, 

   262                     method_handle->channel_name) == FALSE) {

   263                 result = GNOME_VFS_ERROR_INVALID_URI;

   264     			goto error;

   265 			}

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

   267                 result = GNOME_VFS_ERROR_INVALID_URI;

   268                 goto error;

   269 		}

   270         

   271 

   272     	method_handle->file = 

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

   274 

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

   276             result = GNOME_VFS_ERROR_INVALID_URI;

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

   278             goto error;

   279         }

   280 

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

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

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

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

   285         

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

   287             result = GNOME_VFS_ERROR_NOT_OPEN;

   288             goto error;

   289         }

   290     }

   291     else {

   292         gboolean ret = TRUE;

   293 		/* Verifies if the file exists */

   294 		if (!gmyth_util_file_exists (method_handle->backend_info, 

   295                     gmyth_uri_get_path (method_handle->gmyth_uri))) {

   296 

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

   298             goto error;

   299 		}

   300         

   301         if ( ( method_handle->is_local_file = gmyth_uri_is_local_file(method_handle->gmyth_uri) ) == TRUE )

   302         {

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

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

   305         } else {

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

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

   308                   gmyth_uri_get_path (method_handle->gmyth_uri));

   309         }

   310 

   311 		/* sets the Playback monitor connection */

   312 		if (!ret) {

   313 

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

   315 		    result = GNOME_VFS_ERROR_NOT_FOUND;

   316             goto error;

   317         }

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

   319 

   320 	method_handle->configured = TRUE;    

   321 

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

   323         result = GNOME_VFS_ERROR_NOT_OPEN;

   324     }

   325 

   326 error:

   327     

   328     return result; 

   329 }

   330 

   331 static GnomeVFSResult

   332 do_open (GnomeVFSMethod * method,

   333 	 GnomeVFSMethodHandle ** method_handle,

   334 	 GnomeVFSURI * uri,

   335 	 GnomeVFSOpenMode mode, GnomeVFSContext * context)

   336 {

   337 	MythtvHandle *myth_handle = NULL;

   338     GnomeVFSResult result = GNOME_VFS_OK;

   339 

   340 	_GNOME_VFS_METHOD_PARAM_CHECK (method_handle != NULL);

   341 	_GNOME_VFS_METHOD_PARAM_CHECK (uri != NULL);

   342 

   343 	if (mode & GNOME_VFS_OPEN_WRITE) {

   344 		return GNOME_VFS_ERROR_INVALID_OPEN_MODE;

   345 	}

   346 

   347     result = myth_handle_new (uri, &myth_handle);

   348     if (result != GNOME_VFS_OK) 

   349         return result;

   350 

   351     result = myth_connection_start (myth_handle);

   352     if (result != GNOME_VFS_OK) {

   353         myth_destroy_handle (myth_handle);

   354         myth_handle = NULL;

   355         return result;

   356     }

   357 

   358     *method_handle = (GnomeVFSMethodHandle *) myth_handle;

   359     

   360     return result;

   361 }

   362 

   363 static GnomeVFSResult

   364 do_create (GnomeVFSMethod	 *method,

   365 	   GnomeVFSMethodHandle **method_handle,

   366 	   GnomeVFSURI 		 *uri,

   367 	   GnomeVFSOpenMode 	  mode,

   368 	   gboolean 		  exclusive,

   369 	   guint 		  perm,

   370 	   GnomeVFSContext 	 *context)

   371 {

   372     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   373 }

   374 

   375 static GnomeVFSResult

   376 do_close (GnomeVFSMethod * method,

   377         GnomeVFSMethodHandle * method_handle, 

   378         GnomeVFSContext * context)

   379 {

   380 	MythtvHandle *myth_handle = (MythtvHandle *) method_handle;

   381 

   382     myth_destroy_handle (myth_handle);

   383     

   384 	return GNOME_VFS_OK;

   385 }

   386 

   387 

   388 static GnomeVFSResult

   389 do_read (GnomeVFSMethod * method,

   390 	 GnomeVFSMethodHandle * method_handle,

   391 	 gpointer buffer,

   392 	 GnomeVFSFileSize num_bytes,

   393 	 GnomeVFSFileSize * bytes_read, 

   394          GnomeVFSContext * context)

   395 {

   396     GnomeVFSResult retval = GNOME_VFS_OK;

   397     MythtvHandle *myth_handle;

   398     GMythFileReadResult result;

   399     GByteArray *myth_buffer = g_byte_array_new ();

   400 

   401     _GNOME_VFS_METHOD_PARAM_CHECK (method_handle != NULL);

   402 

   403     myth_handle = (MythtvHandle *) method_handle;

   404     if ( myth_handle->is_local_file )

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

   406                                        myth_buffer,

   407                                        num_bytes, myth_handle->is_livetv );

   408     else

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

   410                               		   myth_buffer,

   411                              		   num_bytes, myth_handle->is_livetv );

   412 

   413     if (result == GMYTH_FILE_READ_ERROR) {

   414         retval = GNOME_VFS_ERROR_IO;

   415     }

   416 

   417     if (result == GMYTH_FILE_READ_EOF) {

   418         retval = GNOME_VFS_ERROR_EOF;

   419     }

   420 

   421     if (myth_buffer->len > 0) {

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

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

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

   425         g_byte_array_free (myth_buffer, TRUE);

   426     } 

   427 

   428 	return retval;

   429 }

   430 

   431 static GnomeVFSResult

   432 do_write (GnomeVFSMethod 	*method,

   433 	  GnomeVFSMethodHandle  *method_handle,

   434 	  gconstpointer 	 buffer,

   435 	  GnomeVFSFileSize 	 num_bytes,

   436 	  GnomeVFSFileSize 	*bytes_written,

   437 	  GnomeVFSContext 	*context)

   438 {

   439     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   440 }

   441 

   442 static GnomeVFSResult

   443 do_seek (GnomeVFSMethod	      *method,

   444 	 GnomeVFSMethodHandle *method_handle,

   445 	 GnomeVFSSeekPosition  whence,

   446 	 GnomeVFSFileOffset    offset,

   447 	 GnomeVFSContext      *context)

   448 {

   449 	MythtvHandle *myth_handle;

   450     //guint64 whence_p = 0;

   451     //gint64 new_offset =0;

   452 

   453      _GNOME_VFS_METHOD_PARAM_CHECK (method_handle != NULL);

   454 

   455      myth_handle = (MythtvHandle *) method_handle;    

   456     

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

   458 

   459     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   460     /*

   461     if (gmyth_uri_is_livetv (myth_handle->gmyth_uri))

   462     

   463     switch (whence)

   464     {

   465         case GNOME_VFS_SEEK_START:

   466             whence_p = 0;

   467             break;

   468         case GNOME_VFS_SEEK_CURRENT:

   469             whence_p = myth_handle->offset;

   470             break;

   471         case GNOME_VFS_SEEK_END:

   472             return GNOME_VFS_ERROR_NOT_SUPPORTED;

   473     }

   474     

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

   476     if (new_offset != 0) {

   477         myth_handle->offset = new_offset;

   478         return GNOME_VFS_OK;

   479     }

   480 

   481     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   482     */

   483 }

   484 

   485 static GnomeVFSResult

   486 do_tell (GnomeVFSMethod       *method,

   487 	 GnomeVFSMethodHandle *method_handle,

   488 	 GnomeVFSFileSize   *offset_return)

   489 {

   490 	MythtvHandle *myth_handle = NULL;

   491     

   492      _GNOME_VFS_METHOD_PARAM_CHECK (method_handle != NULL);

   493      

   494     myth_handle = (MythtvHandle *) method_handle;

   495     *offset_return = myth_handle->offset;

   496 

   497     return GNOME_VFS_OK;

   498 }

   499 

   500 static GnomeVFSResult

   501 do_truncate_handle (GnomeVFSMethod *method,

   502 		    GnomeVFSMethodHandle *method_handle,

   503 		    GnomeVFSFileSize where,

   504 		    GnomeVFSContext *context)

   505 {

   506     return GNOME_VFS_ERROR_READ_ONLY;

   507 }

   508 

   509 static GnomeVFSResult

   510 do_open_directory (GnomeVFSMethod 	    *method,

   511 		   GnomeVFSMethodHandle    **method_handle,

   512 		   GnomeVFSURI 		    *uri,

   513 		   GnomeVFSFileInfoOptions   options,

   514 		   GnomeVFSContext 	    *context) 

   515 {

   516     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   517 }

   518 

   519 static GnomeVFSResult

   520 do_close_directory (GnomeVFSMethod 	 *method,

   521 		    GnomeVFSMethodHandle *method_handle,

   522 		    GnomeVFSContext 	 *context) 

   523 {

   524     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   525 }

   526 

   527 static GnomeVFSResult

   528 do_read_directory (GnomeVFSMethod 	*method,

   529        		   GnomeVFSMethodHandle *method_handle,

   530        		   GnomeVFSFileInfo 	*file_info,

   531 		   GnomeVFSContext 	*context)

   532 {

   533     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   534 }

   535 

   536 

   537 static GnomeVFSResult

   538 do_get_file_info (GnomeVFSMethod * method,

   539 		  GnomeVFSURI * uri,

   540 		  GnomeVFSFileInfo * file_info,

   541 		  GnomeVFSFileInfoOptions options,

   542 		  GnomeVFSContext * context)

   543 {

   544     return myth_get_file_info (NULL, uri, file_info);

   545 }

   546 

   547 static GnomeVFSResult

   548 do_get_file_info_from_handle (GnomeVFSMethod 		*method,

   549             			      GnomeVFSMethodHandle 	*method_handle,

   550 			                  GnomeVFSFileInfo 		*file_info,

   551             			      GnomeVFSFileInfoOptions    options,

   552 			                  GnomeVFSContext 		*context)

   553 {

   554 	MythtvHandle *myth_handle = (MythtvHandle *) method_handle;

   555 

   556     return myth_get_file_info (myth_handle, NULL, file_info);

   557 }

   558 

   559 static gboolean

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

   561 {

   562 	return FALSE;

   563 }

   564 

   565 static GnomeVFSResult

   566 do_make_directory (GnomeVFSMethod  *method, 

   567 		            GnomeVFSURI     *uri,

   568                     guint 	    perm, 

   569 		            GnomeVFSContext *context) 

   570 {

   571     return GNOME_VFS_ERROR_READ_ONLY;

   572 }

   573 

   574 static GnomeVFSResult 

   575 do_remove_directory (GnomeVFSMethod  *method, 

   576 		             GnomeVFSURI     *uri, 

   577 		             GnomeVFSContext *context) 

   578 {

   579     return GNOME_VFS_ERROR_READ_ONLY;

   580 }

   581 

   582 static GnomeVFSResult

   583 do_move (GnomeVFSMethod  *method,

   584 	 GnomeVFSURI 	 *old_uri,

   585 	 GnomeVFSURI 	 *new_uri,

   586 	 gboolean         force_replace,

   587 	 GnomeVFSContext *context)

   588 {

   589     return GNOME_VFS_ERROR_READ_ONLY;

   590 }

   591 

   592 static GnomeVFSResult 

   593 do_unlink (GnomeVFSMethod  *method,

   594 	   GnomeVFSURI 	   *uri,

   595 	   GnomeVFSContext *context)

   596 {

   597     return GNOME_VFS_ERROR_READ_ONLY;

   598 }

   599 

   600 static GnomeVFSResult 

   601 do_check_same_fs (GnomeVFSMethod  *method,

   602 		  GnomeVFSURI 	  *a,

   603 		  GnomeVFSURI 	  *b,

   604 		  gboolean 	  *same_fs_return,

   605 		  GnomeVFSContext *context)

   606 {

   607     return GNOME_VFS_ERROR_NOT_SUPPORTED;

   608 }

   609 

   610 static GnomeVFSResult

   611 do_set_file_info (GnomeVFSMethod 		*method,

   612 		  GnomeVFSURI 			*uri,

   613 		  const GnomeVFSFileInfo 	*info,

   614 		  GnomeVFSSetFileInfoMask 	 mask,

   615 		  GnomeVFSContext 		*context)

   616 {

   617     return GNOME_VFS_ERROR_READ_ONLY;

   618 }

   619 

   620 static GnomeVFSResult

   621 do_truncate (GnomeVFSMethod *method,

   622 	     GnomeVFSURI *uri,

   623 	     GnomeVFSFileSize where,

   624 	     GnomeVFSContext *context)

   625 {

   626     return GNOME_VFS_ERROR_READ_ONLY;

   627 }

   628 

   629 static GnomeVFSResult

   630 do_find_directory (GnomeVFSMethod *method,

   631 		   GnomeVFSURI *near_uri,

   632 		   GnomeVFSFindDirectoryKind kind,

   633 		   GnomeVFSURI **result_uri,

   634 		   gboolean create_if_needed,

   635 		   gboolean find_if_needed,

   636 		   guint permissions,

   637 		   GnomeVFSContext *context)

   638 {

   639 	return GNOME_VFS_ERROR_NOT_SUPPORTED;

   640 }

   641 

   642 static GnomeVFSResult

   643 do_create_symbolic_link (GnomeVFSMethod *method,

   644 			 GnomeVFSURI *uri,

   645 			 const char *target_reference,

   646 			 GnomeVFSContext *context)

   647 {

   648     return GNOME_VFS_ERROR_READ_ONLY;

   649 }

   650 

   651 static GnomeVFSResult

   652 do_monitor_add (GnomeVFSMethod *method,

   653 		GnomeVFSMethodHandle **method_handle_return,

   654 		GnomeVFSURI *uri,

   655 		GnomeVFSMonitorType monitor_type)

   656 {

   657 	return GNOME_VFS_ERROR_NOT_SUPPORTED;

   658 }

   659 

   660 static GnomeVFSResult

   661 do_monitor_cancel (GnomeVFSMethod *method,

   662 		   GnomeVFSMethodHandle *method_handle)

   663 {

   664 	return GNOME_VFS_ERROR_NOT_SUPPORTED;

   665 }

   666 

   667 static GnomeVFSResult

   668 do_file_control (GnomeVFSMethod *method,

   669 		 GnomeVFSMethodHandle *method_handle,

   670 		 const char *operation,

   671 		 gpointer operation_data,

   672 		 GnomeVFSContext *context)

   673 {

   674 	return GNOME_VFS_ERROR_NOT_SUPPORTED;

   675 }

   676 

   677 static GnomeVFSMethod method = {

   678 	sizeof (GnomeVFSMethod),

   679 	do_open, 

   680 	do_create,

   681 	do_close,

   682 	do_read, 

   683 	do_write,

   684 	do_seek,

   685 	do_tell,

   686 	do_truncate_handle, 

   687 	do_open_directory,

   688 	do_close_directory,

   689 	do_read_directory,

   690 	do_get_file_info,

   691 	do_get_file_info_from_handle,

   692 	do_is_local, 

   693 	do_make_directory, 

   694 	do_remove_directory,

   695 	do_move,

   696 	do_unlink,

   697 	do_check_same_fs,

   698 	do_set_file_info,

   699 	do_truncate, 

   700 	do_find_directory, 

   701 	do_create_symbolic_link,  

   702 	do_monitor_add,  

   703 	do_monitor_cancel,  

   704 	do_file_control 	

   705 };

   706 

   707 

   708 GnomeVFSMethod *

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

   710 {

   711 	return &method;

   712 }

   713 

   714 void

   715 vfs_module_shutdown (GnomeVFSMethod * method)

   716 {

   717 }
gmyth