proxies/jmcore_proxy.c

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*
   3  * LADI Session Handler (ladish)
   4  *
   5  * Copyright (C) 2010 Nedko Arnaudov <nedko@arnaudov.name>
   6  *
   7  **************************************************************************
   8  * This file contains  code that interfaces the jmcore through D-Bus
   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 "jmcore_proxy.h"
  28 #include "../dbus_constants.h"
  29
  30 int64_t g_jmcore_pid;
  31
  32 static void on_jmcore_life_status_changed(bool appeared)
  33 {
  34   g_jmcore_pid = 0;
  35 }
  36
  37 bool jmcore_proxy_init(void)
  38 {
  39   if (!dbus_register_service_lifetime_hook(g_dbus_connection, JMCORE_SERVICE_NAME, on_jmcore_life_status_changed))
  40   {
  41     log_error("dbus_register_service_lifetime_hook() failed for a2j service");
  42     return false;
  43   }
  44
  45   return jmcore_proxy_get_pid_noncached(&g_jmcore_pid);
  46 }
  47
  48 void jmcore_proxy_uninit(void)
  49 {
  50   dbus_unregister_service_lifetime_hook(g_dbus_connection, JMCORE_SERVICE_NAME);
  51 }
  52
  53 int64_t jmcore_proxy_get_pid_cached(void)
  54 {
  55   if (g_jmcore_pid == 0)
  56   {
  57     jmcore_proxy_get_pid_noncached(&g_jmcore_pid);
  58   }
  59
  60   return g_jmcore_pid;
  61 }
  62
  63 bool jmcore_proxy_get_pid_noncached(int64_t * pid_ptr)
  64 {
  65   if (!dbus_call(JMCORE_SERVICE_NAME, JMCORE_OBJECT_PATH, JMCORE_IFACE, "get_pid", "", "x", pid_ptr))
  66   {
  67     log_error("jmcore::get_pid() failed.");
  68     return false;
  69   }
  70
  71   return true;
  72 }
  73
  74 bool jmcore_proxy_create_link(bool midi, const char * input_port_name, const char * output_port_name)
  75 {
  76   dbus_bool_t dbus_midi = midi;
  77
  78   if (!dbus_call(JMCORE_SERVICE_NAME, JMCORE_OBJECT_PATH, JMCORE_IFACE, "create", "bss", &dbus_midi, &input_port_name, &output_port_name, ""))
  79   {
  80     log_error("jmcore::create() failed.");
  81     return false;
  82   }
  83
  84   return true;
  85 }
  86
  87 bool jmcore_proxy_destroy_link(const char * port_name)
  88 {
  89   if (!dbus_call(JMCORE_SERVICE_NAME, JMCORE_OBJECT_PATH, JMCORE_IFACE, "destroy", "s", &port_name, ""))
  90   {
  91     log_error("jmcore::destroy() failed.");
  92     return false;
  93   }
  94
  95   return true;
  96 }