ladish/daemon/client.c

/* -*- Mode: C ; c-basic-offset: 2 -*- */
/*
 * LADI Session Handler (ladish)
 *
 * Copyright (C) 2009, 2010 Nedko Arnaudov <nedko@arnaudov.name>
 *
 **************************************************************************
 * This file contains the implementation of the client objects
 **************************************************************************
 *
 * LADI Session Handler is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * LADI Session Handler is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
 * or write to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "common.h"
#include "client.h"

struct ladish_client
{
  struct list_head siblings_studio_all;    /* link for the studio::all_clients list */
  struct list_head siblings_room;          /* link for the room::clients list */
  struct list_head ports;                  /* List of ports that belong to the client */
  uuid_t uuid;                             /* The UUID of the client */
  uint64_t jack_id;                        /* JACK client ID */
  char * jack_name;                        /* JACK name, not valid for virtual clients */
  bool virtual:1;                          /* Whether client is virtual */
  bool link:1;                             /* Whether client is a studio-room link */
  bool system:1;                           /* Whether client is system (server in-process) */
  pid_t pid;                               /* process id. Not valid for system and virtual clients */
  struct room * room_ptr;                  /* Room this client belongs to. If NULL, client belongs only to studio guts. */
  ladish_dict_handle dict;
};

bool
ladish_client_create(
  const uuid_t uuid_ptr,
  bool virtual,
  bool link,
  bool system,
  ladish_client_handle * client_handle_ptr)
{
  struct ladish_client * client_ptr;

  client_ptr = malloc(sizeof(struct ladish_client));
  if (client_ptr == NULL)
  {
    log_error("malloc() failed to allocate struct ladish_client");
    return false;
  }

  if (!ladish_dict_create(&client_ptr->dict))
  {
    log_error("ladish_dict_create() failed for client");
    free(client_ptr);
    return false;
  }

  if (uuid_ptr == NULL)
  {
    uuid_generate(client_ptr->uuid);
  }
  else
  {
    uuid_copy(client_ptr->uuid, uuid_ptr);
  }

  INIT_LIST_HEAD(&client_ptr->siblings_studio_all);
  INIT_LIST_HEAD(&client_ptr->siblings_room);
  INIT_LIST_HEAD(&client_ptr->ports);
  client_ptr->jack_id = 0;
  client_ptr->jack_name = NULL;
  client_ptr->virtual = virtual;
  client_ptr->link = link;
  client_ptr->system = system;
  client_ptr->pid = 0;
  client_ptr->room_ptr = NULL;

#if 0
  {
    char str[37];
    uuid_unparse(client_ptr->uuid, str);
    log_info("Created client %s", str);
  }
#endif

  log_info("client %p created", client_ptr);
  *client_handle_ptr = (ladish_client_handle)client_ptr;
  return true;
}

#define client_ptr ((struct ladish_client *)client_handle)

bool
ladish_client_create_copy(
  ladish_client_handle client_handle,
  ladish_client_handle * client_handle_ptr)
{
  return ladish_client_create(client_ptr->uuid, client_ptr->virtual, client_ptr->link, client_ptr->system, client_handle_ptr);
}

void
ladish_client_destroy(
  ladish_client_handle client_handle)
{
  log_info("client %p destroy", client_ptr);

  ASSERT(list_empty(&client_ptr->ports));
  ASSERT(list_empty(&client_ptr->siblings_studio_all));
  ASSERT(list_empty(&client_ptr->siblings_room));

  ladish_dict_destroy(client_ptr->dict);

  if (client_ptr->jack_name != NULL)
  {
    free(client_ptr->jack_name);
  }

  free(client_ptr);
}

ladish_dict_handle ladish_client_get_dict(ladish_client_handle client_handle)
{
  return client_ptr->dict;
}

void ladish_client_get_uuid(ladish_client_handle client_handle, uuid_t uuid)
{
  uuid_copy(uuid, client_ptr->uuid);
}

void ladish_client_set_jack_id(ladish_client_handle client_handle, uint64_t jack_id)
{
  log_info("client jack id set to %"PRIu64, jack_id);
  client_ptr->jack_id = jack_id;
}

uint64_t ladish_client_get_jack_id(ladish_client_handle client_handle)
{
  return client_ptr->jack_id;
}

void ladish_client_set_pid(ladish_client_handle client_handle, pid_t pid)
{
  client_ptr->pid = pid;
}

pid_t ladish_client_get_pid(ladish_client_handle client_handle)
{
  return client_ptr->pid;
}

#undef client_ptr