research.m1stereo.tv/gitweb/ - melted/blob - src/miracle/miracle_commands.c

   1 /*
   2  * global_commands.c
   3  * Copyright (C) 2002-2003 Ushodaya Enterprises Limited
   4  * Author: Dan Dennedy <dan@dennedy.org>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <sys/types.h>
  25 #include <sys/stat.h>
  26 #include <sys/poll.h>
  27 #include <fcntl.h>
  28 #include <unistd.h>
  29 #include <dirent.h>
  30 #include <pthread.h>
  31
  32 #include "miracle_unit.h"
  33 #include "miracle_commands.h"
  34 #include "miracle_log.h"
  35
  36 static miracle_unit g_units[MAX_UNITS];
  37
  38
  39 /** Return the miracle_unit given a numeric index.
  40 */
  41
  42 miracle_unit miracle_get_unit( int n )
  43 {
  44         if (n < MAX_UNITS)
  45                 return g_units[n];
  46         else
  47                 return NULL;
  48 }
  49
  50 /** Destroy the miracle_unit given its numeric index.
  51 */
  52
  53 void miracle_delete_unit( int n )
  54 {
  55         if (n < MAX_UNITS)
  56         {
  57                 miracle_unit unit = miracle_get_unit(n);
  58                 if (unit != NULL)
  59                 {
  60                         miracle_unit_close( unit );
  61                         g_units[ n ] = NULL;
  62                         miracle_log( LOG_NOTICE, "Deleted unit U%d.", n );
  63                 }
  64         }
  65 }
  66
  67 /** Destroy all allocated units on the server.
  68 */
  69
  70 void miracle_delete_all_units( void )
  71 {
  72         int i;
  73         for (i = 0; i < MAX_UNITS; i++)
  74         {
  75                 if ( miracle_get_unit(i) != NULL )
  76                 {
  77                         miracle_unit_close( miracle_get_unit(i) );
  78                         miracle_log( LOG_NOTICE, "Deleted unit U%d.", i );
  79                 }
  80         }
  81 }
  82
  83 /** Add a DV virtual vtr to the server.
  84 */
  85 response_codes miracle_add_unit( command_argument cmd_arg )
  86 {
  87         int i = 0;
  88         for ( i = 0; i < MAX_UNITS; i ++ )
  89                 if ( g_units[ i ] == NULL )
  90                         break;
  91
  92         if ( i < MAX_UNITS )
  93         {
  94                 char *arg = cmd_arg->argument;
  95                 g_units[ i ] = miracle_unit_init( i, arg );
  96                 if ( g_units[ i ] != NULL )
  97                         miracle_unit_set_notifier( g_units[ i ], valerie_parser_get_notifier( cmd_arg->parser ), cmd_arg->root_dir );
  98                 return g_units[ i ] != NULL ? RESPONSE_SUCCESS : RESPONSE_ERROR;
  99         }
 100
 101         return RESPONSE_ERROR;
 102 }
 103
 104
 105 /** List all AV/C nodes on the bus.
 106 */
 107 response_codes miracle_list_nodes( command_argument cmd_arg )
 108 {
 109         response_codes error = RESPONSE_SUCCESS_N;
 110         return error;
 111 }
 112
 113
 114 /** List units already added to server.
 115 */
 116 response_codes miracle_list_units( command_argument cmd_arg )
 117 {
 118         response_codes error = RESPONSE_SUCCESS_N;
 119         int i = 0;
 120
 121         for ( i = 0; i < MAX_UNITS; i ++ )
 122         {
 123                 miracle_unit unit = miracle_get_unit( i );
 124                 if ( unit != NULL )
 125                 {
 126                         mlt_properties properties = unit->properties;
 127                         char *constructor = mlt_properties_get( properties, "constructor" );
 128                         int node = mlt_properties_get_int( properties, "node" );
 129                         int online = !mlt_properties_get_int( properties, "offline" );
 130                         valerie_response_printf( cmd_arg->response, 1024, "U%d %02d %s %d\n", i, node, constructor, online );
 131                 }
 132         }
 133
 134         return error;
 135 }
 136
 137 static int filter_files( const struct dirent *de )
 138 {
 139         return de->d_name[ 0 ] != '.';
 140 }
 141
 142 /** List clips in a directory.
 143 */
 144 response_codes miracle_list_clips( command_argument cmd_arg )
 145 {
 146         response_codes error = RESPONSE_BAD_FILE;
 147         const char *dir_name = (const char*) cmd_arg->argument;
 148         DIR *dir;
 149         char fullname[1024];
 150         struct dirent **de = NULL;
 151         int i, n;
 152
 153         snprintf( fullname, 1023, "%s%s", cmd_arg->root_dir, dir_name );
 154         dir = opendir( fullname );
 155         if (dir != NULL)
 156         {
 157                 struct stat info;
 158                 error = RESPONSE_SUCCESS_N;
 159                 n = scandir( fullname, &de, filter_files, alphasort );
 160                 for (i = 0; i < n; i++ )
 161                 {
 162                         snprintf( fullname, 1023, "%s%s/%s", cmd_arg->root_dir, dir_name, de[i]->d_name );
 163                         if ( stat( fullname, &info ) == 0 && S_ISDIR( info.st_mode ) )
 164                                 valerie_response_printf( cmd_arg->response, 1024, "\"%s/\"\n", de[i]->d_name );
 165                 }
 166                 for (i = 0; i < n; i++ )
 167                 {
 168                         snprintf( fullname, 1023, "%s%s/%s", cmd_arg->root_dir, dir_name, de[i]->d_name );
 169                         if ( lstat( fullname, &info ) == 0 &&
 170                                  ( S_ISREG( info.st_mode ) || S_ISLNK( info.st_mode ) || ( strstr( fullname, ".clip" ) && info.st_mode | S_IXUSR ) ) )
 171                                 valerie_response_printf( cmd_arg->response, 1024, "\"%s\" %llu\n", de[i]->d_name, (unsigned long long) info.st_size );
 172                         free( de[ i ] );
 173                 }
 174                 free( de );
 175                 closedir( dir );
 176                 valerie_response_write( cmd_arg->response, "\n", 1 );
 177         }
 178
 179         return error;
 180 }
 181
 182 /** Set a server configuration property.
 183 */
 184
 185 response_codes miracle_set_global_property( command_argument cmd_arg )
 186 {
 187         char *key = (char*) cmd_arg->argument;
 188         char *value = NULL;
 189
 190         value = strchr( key, '=' );
 191         if (value == NULL)
 192                 return RESPONSE_OUT_OF_RANGE;
 193         *value = 0;
 194         value++;
 195         miracle_log( LOG_DEBUG, "SET %s = %s", key, value );
 196
 197         if ( strncasecmp( key, "root", 1024) == 0 )
 198         {
 199                 int len = strlen(value);
 200                 int i;
 201
 202                 /* stop all units and unload clips */
 203                 for (i = 0; i < MAX_UNITS; i++)
 204                 {
 205                         if (g_units[i] != NULL)
 206                                 miracle_unit_terminate( g_units[i] );
 207                 }
 208
 209                 /* set the property */
 210                 strncpy( cmd_arg->root_dir, value, 1023 );
 211
 212                 /* add a trailing slash if needed */
 213                 if ( cmd_arg->root_dir[ len - 1 ] != '/')
 214                 {
 215                         cmd_arg->root_dir[ len ] = '/';
 216                         cmd_arg->root_dir[ len + 1 ] = '\0';
 217                 }
 218         }
 219         else
 220                 return RESPONSE_OUT_OF_RANGE;
 221
 222         return RESPONSE_SUCCESS;
 223 }
 224
 225 /** Get a server configuration property.
 226 */
 227
 228 response_codes miracle_get_global_property( command_argument cmd_arg )
 229 {
 230         char *key = (char*) cmd_arg->argument;
 231
 232         if ( strncasecmp( key, "root", 1024) == 0 )
 233         {
 234                 valerie_response_write( cmd_arg->response, cmd_arg->root_dir, strlen(cmd_arg->root_dir) );
 235                 return RESPONSE_SUCCESS_1;
 236         }
 237         else
 238                 return RESPONSE_OUT_OF_RANGE;
 239
 240         return RESPONSE_SUCCESS;
 241 }
 242
 243