daemon/jack.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 code for JACK server monitor and control
   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 "jack.h"
  28 #include "../jack_proxy.h"
  29 #include "studio.h"
  30 #include "control.h"
  31
  32 void
  33 on_jack_server_started(
  34   void)
  35 {
  36   lash_info("JACK server start detected.");
  37
  38   if (g_studio == NULL)
  39   {
  40     if (!studio_create(&g_studio))
  41     {
  42       lash_error("failed to create studio object");
  43       return;
  44     }
  45   }
  46
  47   if (!studio_fetch_jack_settings(g_studio))
  48   {
  49     lash_error("studio_fetch_jack_settings() failed.");
  50
  51     if (!studio_is_persisted(g_studio))
  52     {
  53       emit_studio_disappeared();
  54       studio_destroy(g_studio);
  55       g_studio = NULL;
  56       return;
  57     }
  58   }
  59
  60   lash_info("jack conf successfully retrieved");
  61   studio_activate(g_studio);
  62   emit_studio_appeared();
  63   studio_save(g_studio, NULL);  /* XXX - to test save functionality, we should not save unless requested by user */
  64   return;
  65 }
  66
  67 void
  68 on_jack_server_stopped(
  69   void)
  70 {
  71   lash_info("JACK server stop detected.");
  72
  73   if (g_studio == NULL)
  74   {
  75     return;
  76   }
  77
  78   if (!studio_is_persisted(g_studio))
  79   {
  80     emit_studio_disappeared();
  81     studio_destroy(g_studio);
  82     g_studio = NULL;
  83     return;
  84   }
  85
  86   /* TODO: if user wants, restart jack server and reconnect all jack apps to it */
  87 }
  88
  89 void
  90 on_jack_server_appeared(
  91   void)
  92 {
  93   lash_info("JACK controller appeared.");
  94 }
  95
  96 void
  97 on_jack_server_disappeared(
  98   void)
  99 {
 100   lash_info("JACK controller disappeared.");
 101 }
 102
 103 bool
 104 jack_init(
 105   void)
 106 {
 107   bool started;
 108
 109   if (!jack_proxy_init(
 110         on_jack_server_started,
 111         on_jack_server_stopped,
 112         on_jack_server_appeared,
 113         on_jack_server_disappeared))
 114   {
 115     return false;
 116   }
 117
 118   if (jack_proxy_is_started(&started) && started)
 119   {
 120     on_jack_server_started();
 121   }
 122
 123   return true;
 124 }
 125
 126 void
 127 jack_uninit(
 128   void)
 129 {
 130   jack_proxy_uninit();
 131 }