daemon/port.c

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*
   3  * LADI Session Handler (ladish)
   4  *
   5  * Copyright (C) 2009 Nedko Arnaudov <nedko@arnaudov.name>
   6  *
   7  **************************************************************************
   8  * This file contains the implementation of the port objects
   9  **************************************************************************
  10  *
  11  * LADI Session Handler is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * LADI Session Handler is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
  23  * or write to the Free Software Foundation, Inc.,
  24  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  25  */
  26
  27 #include "port.h"
  28
  29 /* JACK port or virtual port */
  30 struct ladish_port
  31 {
  32   struct list_head siblings_studio_all;    /* link for the studio::all_ports list */
  33   struct list_head siblings_studio;        /* link for the studio::ports list */
  34   struct list_head siblings_room;          /* link for the room::ports list */
  35   struct list_head siblings_client;        /* link for the port list of the client */
  36   struct list_head siblings_vclient;       /* link for the port list of the virtual client */
  37
  38   uuid_t uuid;                             /* The UUID of the port */
  39   bool virtual;                            /* Whether the port is virtual or JACK port */
  40   char * jack_name;                        /* JACK name (short). Not valid for virtual ports. */
  41   uint64_t jack_id;                        /* JACK port ID. Not valid for virtual ports. */
  42   char * human_name;                       /* User assigned name */
  43
  44   struct client * client_ptr;              /* JACK client this port belongs to. Not valid for virtual ports. */
  45   struct client * vclient_ptr;             /* Virtual client this port belongs to. NULL if there is no virtual client associated. */
  46
  47   /* superconnections are not in these lists */
  48   struct list_head input_connections;      /* list of input connections, i.e. connections that play to this port */
  49   struct list_head output_connections;     /* list of output connections, i.e. connections that capture from this port */
  50
  51   ladish_dict_handle dict;
  52 };
  53
  54 bool
  55 ladish_port_create(
  56   uuid_t uuid_ptr,
  57   ladish_port_handle * port_handle_ptr)
  58 {
  59   struct ladish_port * port_ptr;
  60
  61   port_ptr = malloc(sizeof(struct ladish_port));
  62   if (port_ptr == NULL)
  63   {
  64     log_error("malloc() failed to allocate struct ladish_port");
  65     return false;
  66   }
  67
  68   if (!ladish_dict_create(&port_ptr->dict))
  69   {
  70     log_error("ladish_dict_create() failed for port");
  71     free(port_ptr);
  72     return false;
  73   }
  74
  75   if (uuid_ptr == NULL)
  76   {
  77     uuid_generate(port_ptr->uuid);
  78   }
  79   else
  80   {
  81     uuid_copy(port_ptr->uuid, uuid_ptr);
  82   }
  83
  84   INIT_LIST_HEAD(&port_ptr->siblings_studio_all);
  85   INIT_LIST_HEAD(&port_ptr->siblings_room);
  86   port_ptr->jack_id = 0;
  87   port_ptr->jack_name = NULL;
  88   port_ptr->human_name = NULL;
  89   port_ptr->virtual = true;
  90
  91   log_info("port %p created", port_ptr);
  92   *port_handle_ptr = (ladish_port_handle)port_ptr;
  93   return true;
  94 }
  95
  96 #define port_ptr ((struct ladish_port * )port_handle)
  97
  98 void ladish_port_destroy(ladish_port_handle port_handle)
  99 {
 100   log_info("port %p destroy", port_ptr);
 101   ladish_dict_destroy(port_ptr->dict);
 102   free(port_ptr);
 103 }
 104
 105 ladish_dict_handle ladish_port_get_dict(ladish_port_handle port_handle)
 106 {
 107   return port_ptr->dict;
 108 }
 109
 110 void ladish_port_get_uuid(ladish_port_handle port_handle, uuid_t uuid)
 111 {
 112   uuid_copy(uuid, port_ptr->uuid);
 113 }
 114
 115 void ladish_port_set_jack_id(ladish_port_handle port_handle, uint64_t jack_id)
 116 {
 117   log_info("port jack id set to %"PRIu64, jack_id);
 118   port_ptr->jack_id = jack_id;
 119 }
 120
 121 uint64_t ladish_port_get_jack_id(ladish_port_handle port_handle)
 122 {
 123   return port_ptr->jack_id;
 124 }
 125
 126 #undef port_ptr