modules/access/tcp.c

   1 /*****************************************************************************
   2  * tcp.c: TCP input module
   3  *****************************************************************************
   4  * Copyright (C) 2003-2004 VLC authors and VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU Lesser General Public License as published by
  11  * the Free Software Foundation; either version 2.1 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, write to the Free Software Foundation,
  21  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #ifdef HAVE_CONFIG_H
  25 # include "config.h"
  26 #endif
  27
  28 #include <errno.h>
  29
  30 #include <vlc_common.h>
  31 #include <vlc_plugin.h>
  32 #include <vlc_access.h>
  33 #include <vlc_url.h>
  34 #include <vlc_tls.h>
  35
  36 static ssize_t Read(access_t *access, void *buf, size_t len)
  37 {
  38     return vlc_tls_Read(access->p_sys, buf, len, false);
  39 }
  40
  41 static int Control( access_t *p_access, int i_query, va_list args )
  42 {
  43     bool    *pb_bool;
  44     int64_t *pi_64;
  45
  46     switch( i_query )
  47     {
  48         case STREAM_CAN_SEEK:
  49         case STREAM_CAN_FASTSEEK:
  50             pb_bool = va_arg( args, bool * );
  51             *pb_bool = false;
  52             break;
  53         case STREAM_CAN_PAUSE:
  54             pb_bool = va_arg( args, bool * );
  55             *pb_bool = true;    /* FIXME */
  56             break;
  57         case STREAM_CAN_CONTROL_PACE:
  58             pb_bool = va_arg( args, bool * );
  59             *pb_bool = true;    /* FIXME */
  60             break;
  61
  62         case STREAM_GET_PTS_DELAY:
  63             pi_64 = va_arg( args, int64_t * );
  64             *pi_64 = INT64_C(1000)
  65                    * var_InheritInteger( p_access, "network-caching" );
  66             break;
  67
  68         case STREAM_SET_PAUSE_STATE:
  69             /* Nothing to do */
  70             break;
  71
  72         default:
  73             return VLC_EGENERIC;
  74     }
  75     return VLC_SUCCESS;
  76 }
  77
  78 static int Open(vlc_object_t *obj)
  79 {
  80     access_t *access = (access_t *)obj;
  81     vlc_tls_t *sock;
  82     vlc_url_t url;
  83
  84     if (vlc_UrlParse(&url, access->psz_url)
  85      || url.psz_host == NULL || url.i_port == 0)
  86     {
  87         msg_Err(access, "invalid location: %s", access->psz_location);
  88         vlc_UrlClean(&url);
  89         return VLC_EGENERIC;
  90     }
  91
  92     sock = vlc_tls_SocketOpenTCP(obj, url.psz_host, url.i_port);
  93     vlc_UrlClean(&url);
  94     if (sock == NULL)
  95         return VLC_EGENERIC;
  96
  97     access->p_sys = sock;
  98     access->pf_read = Read;
  99     access->pf_block = NULL;
 100     access->pf_control = Control;
 101     access->pf_seek = NULL;
 102     return VLC_SUCCESS;
 103 }
 104
 105 static void Close( vlc_object_t *p_this )
 106 {
 107     access_t *access = (access_t *)p_this;
 108
 109     vlc_tls_SessionDelete(access->p_sys);
 110 }
 111
 112 /*****************************************************************************
 113  * Module descriptor
 114  *****************************************************************************/
 115 vlc_module_begin ()
 116     set_shortname( N_("TCP") )
 117     set_description( N_("TCP input") )
 118     set_category( CAT_INPUT )
 119     set_subcategory( SUBCAT_INPUT_ACCESS )
 120
 121     set_capability( "access", 0 )
 122     add_shortcut( "tcp" )
 123     set_callbacks( Open, Close )
 124 vlc_module_end ()