2 * mvcp_remote.c -- Remote Parser
3 * Copyright (C) 2002-2009 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library 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 GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 /* System header files */
29 /* Application header files */
30 #include <framework/mlt.h>
31 #include "mvcp_remote.h"
32 #include "mvcp_socket.h"
33 #include "mvcp_tokeniser.h"
34 #include "mvcp_util.h"
36 /** Private mvcp_remote structure.
48 pthread_mutex_t mutex
;
51 *mvcp_remote
, mvcp_remote_t
;
53 /** Forward declarations.
56 static mvcp_response
mvcp_remote_connect( mvcp_remote
);
57 static mvcp_response
mvcp_remote_execute( mvcp_remote
, char * );
58 static mvcp_response
mvcp_remote_receive( mvcp_remote
, char *, char * );
59 static mvcp_response
mvcp_remote_push( mvcp_remote
, char *, mlt_service
);
60 static void mvcp_remote_close( mvcp_remote
);
61 static int mvcp_remote_read_response( mvcp_socket
, mvcp_response
);
63 /** MVCP Parser constructor.
66 mvcp_parser
mvcp_parser_init_remote( char *server
, int port
)
68 mvcp_parser parser
= calloc( 1, sizeof( mvcp_parser_t
) );
69 mvcp_remote remote
= calloc( 1, sizeof( mvcp_remote_t
) );
73 parser
->connect
= (parser_connect
)mvcp_remote_connect
;
74 parser
->execute
= (parser_execute
)mvcp_remote_execute
;
75 parser
->push
= (parser_push
)mvcp_remote_push
;
76 parser
->received
= (parser_received
)mvcp_remote_receive
;
77 parser
->close
= (parser_close
)mvcp_remote_close
;
78 parser
->real
= remote
;
82 remote
->parser
= parser
;
83 remote
->server
= strdup( server
);
85 pthread_mutex_init( &remote
->mutex
, NULL
);
91 /** Thread for receiving and distributing the status information.
94 static void *mvcp_remote_status_thread( void *arg
)
96 mvcp_remote remote
= arg
;
100 mvcp_tokeniser tokeniser
= mvcp_tokeniser_init( );
101 mvcp_notifier notifier
= mvcp_parser_get_notifier( remote
->parser
);
102 mvcp_status_t status
;
105 mvcp_socket_write_data( remote
->status
, "STATUS\r\n", 8 );
107 while ( !remote
->terminated
&&
108 ( length
= mvcp_socket_read_data( remote
->status
, temp
+ offset
, sizeof( temp
) ) ) >= 0 )
110 if ( strchr( temp
, '\n' ) == NULL
)
116 mvcp_tokeniser_parse_new( tokeniser
, temp
, "\n" );
117 for ( index
= 0; index
< mvcp_tokeniser_count( tokeniser
); index
++ )
119 char *line
= mvcp_tokeniser_get_string( tokeniser
, index
);
120 if ( line
[ strlen( line
) - 1 ] == '\r' )
122 mvcp_util_chomp( line
);
123 mvcp_status_parse( &status
, line
);
124 mvcp_notifier_put( notifier
, &status
);
128 strcpy( temp
, line
);
129 offset
= strlen( temp
);
134 mvcp_notifier_disconnected( notifier
);
135 mvcp_tokeniser_close( tokeniser
);
136 remote
->terminated
= 1;
141 /** Forward reference.
144 static void mvcp_remote_disconnect( mvcp_remote remote
);
146 /** Connect to the server.
149 static mvcp_response
mvcp_remote_connect( mvcp_remote remote
)
151 mvcp_response response
= NULL
;
153 mvcp_remote_disconnect( remote
);
155 if ( !remote
->connected
)
157 signal( SIGPIPE
, SIG_IGN
);
159 remote
->socket
= mvcp_socket_init( remote
->server
, remote
->port
);
160 remote
->status
= mvcp_socket_init( remote
->server
, remote
->port
);
162 if ( mvcp_socket_connect( remote
->socket
) == 0 )
164 response
= mvcp_response_init( );
165 mvcp_remote_read_response( remote
->socket
, response
);
168 if ( response
!= NULL
&& mvcp_socket_connect( remote
->status
) == 0 )
170 mvcp_response status_response
= mvcp_response_init( );
171 mvcp_remote_read_response( remote
->status
, status_response
);
172 if ( mvcp_response_get_error_code( status_response
) == 100 )
173 pthread_create( &remote
->thread
, NULL
, mvcp_remote_status_thread
, remote
);
174 mvcp_response_close( status_response
);
175 remote
->connected
= 1;
182 /** Execute the command.
185 static mvcp_response
mvcp_remote_execute( mvcp_remote remote
, char *command
)
187 mvcp_response response
= NULL
;
188 pthread_mutex_lock( &remote
->mutex
);
189 if ( mvcp_socket_write_data( remote
->socket
, command
, strlen( command
) ) == strlen( command
) )
191 response
= mvcp_response_init( );
192 mvcp_socket_write_data( remote
->socket
, "\r\n", 2 );
193 mvcp_remote_read_response( remote
->socket
, response
);
195 pthread_mutex_unlock( &remote
->mutex
);
199 /** Push a westley document to the server.
202 static mvcp_response
mvcp_remote_receive( mvcp_remote remote
, char *command
, char *buffer
)
204 mvcp_response response
= NULL
;
205 pthread_mutex_lock( &remote
->mutex
);
206 if ( mvcp_socket_write_data( remote
->socket
, command
, strlen( command
) ) == strlen( command
) )
209 int length
= strlen( buffer
);
210 response
= mvcp_response_init( );
211 mvcp_socket_write_data( remote
->socket
, "\r\n", 2 );
212 sprintf( temp
, "%d", length
);
213 mvcp_socket_write_data( remote
->socket
, temp
, strlen( temp
) );
214 mvcp_socket_write_data( remote
->socket
, "\r\n", 2 );
215 mvcp_socket_write_data( remote
->socket
, buffer
, length
);
216 mvcp_socket_write_data( remote
->socket
, "\r\n", 2 );
217 mvcp_remote_read_response( remote
->socket
, response
);
219 pthread_mutex_unlock( &remote
->mutex
);
223 /** Push a producer to the server.
226 static mvcp_response
mvcp_remote_push( mvcp_remote remote
, char *command
, mlt_service service
)
228 mvcp_response response
= NULL
;
229 if ( service
!= NULL
)
231 mlt_consumer consumer
= mlt_factory_consumer( NULL
, "westley", "buffer" );
232 mlt_properties properties
= MLT_CONSUMER_PROPERTIES( consumer
);
235 mlt_properties_set( properties
, "store", "nle_" );
236 mlt_consumer_connect( consumer
, service
);
237 mlt_consumer_start( consumer
);
238 buffer
= mlt_properties_get( properties
, "buffer" );
239 response
= mvcp_remote_receive( remote
, command
, buffer
);
240 mlt_consumer_close( consumer
);
248 static void mvcp_remote_disconnect( mvcp_remote remote
)
250 if ( remote
!= NULL
&& remote
->terminated
)
252 if ( remote
->connected
)
253 pthread_join( remote
->thread
, NULL
);
254 mvcp_socket_close( remote
->status
);
255 mvcp_socket_close( remote
->socket
);
256 remote
->connected
= 0;
257 remote
->terminated
= 0;
261 /** Close the parser.
264 static void mvcp_remote_close( mvcp_remote remote
)
266 if ( remote
!= NULL
)
268 remote
->terminated
= 1;
269 mvcp_remote_disconnect( remote
);
270 pthread_mutex_destroy( &remote
->mutex
);
271 free( remote
->server
);
279 static int mvcp_remote_read_response( mvcp_socket socket
, mvcp_response response
)
285 while ( !terminated
&& ( length
= mvcp_socket_read_data( socket
, temp
, 10240 ) ) >= 0 )
288 temp
[ length
] = '\0';
289 mvcp_response_write( response
, temp
, length
);
290 position
= mvcp_response_count( response
) - 1;
291 if ( position
< 0 || temp
[ strlen( temp
) - 1 ] != '\n' )
293 switch( mvcp_response_get_error_code( response
) )
297 terminated
= !strcmp( mvcp_response_get_line( response
, position
), "" );
300 terminated
= mvcp_response_count( response
) >= 2;