daemon/patchbay.c

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*
   3  * LADI Session Handler (ladish)
   4  *
   5  * Copyright (C) 2008, 2009 Nedko Arnaudov <nedko@arnaudov.name>
   6  * Copyright (C) 2008 Juuso Alasuutari
   7  *
   8  **************************************************************************
   9  * This file contains implementation of the D-Bus patchbay interface helpers
  10  **************************************************************************
  11  *
  12  * LADI Session Handler is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * LADI Session Handler is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
  24  * or write to the Free Software Foundation, Inc.,
  25  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  26  */
  27
  28 #include "common.h"
  29 #include "patchbay.h"
  30 #include "../dbus/error.h"
  31
  32 #define impl_ptr ((struct patchbay_implementator *)call_ptr->context)
  33
  34 static void get_all_ports(method_call_t * call_ptr)
  35 {
  36   DBusMessageIter iter, sub_iter;
  37
  38   call_ptr->reply = dbus_message_new_method_return(call_ptr->message);
  39   if (call_ptr->reply == NULL)
  40   {
  41     goto fail;
  42   }
  43
  44   dbus_message_iter_init_append(call_ptr->reply, &iter);
  45
  46   if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub_iter))
  47   {
  48     goto fail_unref;
  49   }
  50
  51   if (!dbus_message_iter_close_container(&iter, &sub_iter))
  52   {
  53     goto fail_unref;
  54   }
  55
  56   return;
  57
  58 fail_unref:
  59   dbus_message_unref(call_ptr->reply);
  60   call_ptr->reply = NULL;
  61
  62 fail:
  63   lash_error("Ran out of memory trying to construct method return");
  64 }
  65
  66 static void get_graph(method_call_t * call_ptr)
  67 {
  68   dbus_uint64_t known_version;
  69   dbus_uint64_t current_version;
  70   DBusMessageIter iter;
  71   DBusMessageIter clients_array_iter;
  72   DBusMessageIter connections_array_iter;
  73 #if 0
  74   DBusMessageIter ports_array_iter;
  75   DBusMessageIter client_struct_iter;
  76   DBusMessageIter port_struct_iter;
  77   DBusMessageIter connection_struct_iter;
  78 #endif
  79
  80   //lash_info("get_graph() called");
  81
  82   if (!dbus_message_get_args(call_ptr->message, &g_dbus_error, DBUS_TYPE_UINT64, &known_version, DBUS_TYPE_INVALID))
  83   {
  84     lash_dbus_error(call_ptr, LASH_DBUS_ERROR_INVALID_ARGS, "Invalid arguments to method \"%s\": %s",  call_ptr->method_name, g_dbus_error.message);
  85     dbus_error_free(&g_dbus_error);
  86     return;
  87   }
  88
  89   //lash_info("Getting graph, known version is %" PRIu64, known_version);
  90
  91   call_ptr->reply = dbus_message_new_method_return(call_ptr->message);
  92   if (call_ptr->reply == NULL)
  93   {
  94     lash_error("Ran out of memory trying to construct method return");
  95     goto exit;
  96   }
  97
  98   dbus_message_iter_init_append(call_ptr->reply, &iter);
  99
 100   current_version = impl_ptr->get_graph_version(impl_ptr->this);
 101   if (known_version > current_version)
 102   {
 103     lash_dbus_error(
 104       call_ptr,
 105       LASH_DBUS_ERROR_INVALID_ARGS,
 106       "known graph version %" PRIu64 " is newer than actual version %" PRIu64,
 107       known_version,
 108       current_version);
 109     goto exit;
 110   }
 111
 112   if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_UINT64, &current_version))
 113   {
 114     goto nomem;
 115   }
 116
 117   if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(tsa(tsuu))", &clients_array_iter))
 118   {
 119     goto nomem;
 120   }
 121
 122   if (known_version < current_version)
 123   {
 124 #if 0
 125     list_for_each(client_node_ptr, &patchbay_ptr->graph.clients)
 126     {
 127       client_ptr = list_entry(client_node_ptr, struct jack_graph_client, siblings);
 128
 129       if (!dbus_message_iter_open_container (&clients_array_iter, DBUS_TYPE_STRUCT, NULL, &client_struct_iter))
 130       {
 131         goto nomem_close_clients_array;
 132       }
 133
 134       if (!dbus_message_iter_append_basic(&client_struct_iter, DBUS_TYPE_UINT64, &client_ptr->id))
 135       {
 136         goto nomem_close_client_struct;
 137       }
 138
 139       if (!dbus_message_iter_append_basic(&client_struct_iter, DBUS_TYPE_STRING, &client_ptr->name))
 140       {
 141         goto nomem_close_client_struct;
 142       }
 143
 144       if (!dbus_message_iter_open_container(&client_struct_iter, DBUS_TYPE_ARRAY, "(tsuu)", &ports_array_iter))
 145       {
 146         goto nomem_close_client_struct;
 147       }
 148
 149       list_for_each(port_node_ptr, &client_ptr->ports)
 150       {
 151         port_ptr = list_entry(port_node_ptr, struct jack_graph_port, siblings_client);
 152
 153         if (!dbus_message_iter_open_container(&ports_array_iter, DBUS_TYPE_STRUCT, NULL, &port_struct_iter))
 154         {
 155           goto nomem_close_ports_array;
 156         }
 157
 158         if (!dbus_message_iter_append_basic(&port_struct_iter, DBUS_TYPE_UINT64, &port_ptr->id))
 159         {
 160           goto nomem_close_port_struct;
 161         }
 162
 163         if (!dbus_message_iter_append_basic(&port_struct_iter, DBUS_TYPE_STRING, &port_ptr->name))
 164         {
 165           goto nomem_close_port_struct;
 166         }
 167
 168         if (!dbus_message_iter_append_basic(&port_struct_iter, DBUS_TYPE_UINT32, &port_ptr->flags))
 169         {
 170           goto nomem_close_port_struct;
 171         }
 172
 173         if (!dbus_message_iter_append_basic(&port_struct_iter, DBUS_TYPE_UINT32, &port_ptr->type))
 174         {
 175           goto nomem_close_port_struct;
 176         }
 177
 178         if (!dbus_message_iter_close_container(&ports_array_iter, &port_struct_iter))
 179         {
 180           goto nomem_close_ports_array;
 181         }
 182       }
 183
 184       if (!dbus_message_iter_close_container(&client_struct_iter, &ports_array_iter))
 185       {
 186         goto nomem_close_client_struct;
 187       }
 188
 189       if (!dbus_message_iter_close_container(&clients_array_iter, &client_struct_iter))
 190       {
 191         goto nomem_close_clients_array;
 192       }
 193     }
 194 #endif
 195   }
 196
 197   if (!dbus_message_iter_close_container(&iter, &clients_array_iter))
 198   {
 199     goto nomem;
 200   }
 201
 202   if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(tstststst)", &connections_array_iter))
 203   {
 204     goto nomem;
 205   }
 206
 207   if (known_version < current_version)
 208   {
 209 #if 0
 210     list_for_each(connection_node_ptr, &patchbay_ptr->graph.connections)
 211     {
 212       connection_ptr = list_entry(connection_node_ptr, struct jack_graph_connection, siblings);
 213
 214       if (!dbus_message_iter_open_container(&connections_array_iter, DBUS_TYPE_STRUCT, NULL, &connection_struct_iter))
 215       {
 216         goto nomem_close_connections_array;
 217       }
 218
 219       if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_UINT64, &connection_ptr->port1->client->id))
 220       {
 221         goto nomem_close_connection_struct;
 222       }
 223
 224       if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_STRING, &connection_ptr->port1->client->name))
 225       {
 226         goto nomem_close_connection_struct;
 227       }
 228
 229       if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_UINT64, &connection_ptr->port1->id))
 230       {
 231         goto nomem_close_connection_struct;
 232       }
 233
 234       if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_STRING, &connection_ptr->port1->name))
 235       {
 236         goto nomem_close_connection_struct;
 237       }
 238
 239       if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_UINT64, &connection_ptr->port2->client->id))
 240       {
 241         goto nomem_close_connection_struct;
 242       }
 243
 244       if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_STRING, &connection_ptr->port2->client->name))
 245       {
 246         goto nomem_close_connection_struct;
 247       }
 248
 249       if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_UINT64, &connection_ptr->port2->id))
 250       {
 251         goto nomem_close_connection_struct;
 252       }
 253
 254       if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_STRING, &connection_ptr->port2->name))
 255       {
 256         goto nomem_close_connection_struct;
 257       }
 258
 259       if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_UINT64, &connection_ptr->id))
 260       {
 261         goto nomem_close_connection_struct;
 262       }
 263
 264       if (!dbus_message_iter_close_container(&connections_array_iter, &connection_struct_iter))
 265       {
 266         goto nomem_close_connections_array;
 267       }
 268     }
 269 #endif
 270   }
 271
 272   if (!dbus_message_iter_close_container(&iter, &connections_array_iter))
 273   {
 274     goto nomem;
 275   }
 276
 277   return;
 278
 279 #if 0
 280 nomem_close_connection_struct:
 281   dbus_message_iter_close_container(&connections_array_iter, &connection_struct_iter);
 282
 283 nomem_close_connections_array:
 284   dbus_message_iter_close_container(&iter, &connections_array_iter);
 285   goto nomem_unlock;
 286
 287 nomem_close_port_struct:
 288   dbus_message_iter_close_container(&ports_array_iter, &port_struct_iter);
 289
 290 nomem_close_ports_array:
 291   dbus_message_iter_close_container(&client_struct_iter, &ports_array_iter);
 292
 293 nomem_close_client_struct:
 294   dbus_message_iter_close_container(&clients_array_iter, &client_struct_iter);
 295
 296 nomem_close_clients_array:
 297   dbus_message_iter_close_container(&iter, &clients_array_iter);
 298 #endif
 299
 300 nomem:
 301   dbus_message_unref(call_ptr->reply);
 302   call_ptr->reply = NULL;
 303   lash_error("Ran out of memory trying to construct method return");
 304
 305 exit:
 306   return;
 307 }
 308
 309 static void connect_ports_by_name(method_call_t * call_ptr)
 310 {
 311   method_return_new_void(call_ptr);
 312 }
 313
 314 static void connect_ports_by_id(method_call_t * call_ptr)
 315 {
 316   method_return_new_void(call_ptr);
 317 }
 318
 319 static void disconnect_ports_by_name(method_call_t * call_ptr)
 320 {
 321   method_return_new_void(call_ptr);
 322 }
 323
 324 static void disconnect_ports_by_id(method_call_t * call_ptr)
 325 {
 326   method_return_new_void(call_ptr);
 327 }
 328
 329 static void disconnect_ports_by_connection_id(method_call_t * call_ptr)
 330 {
 331   method_return_new_void(call_ptr);
 332 }
 333
 334 static void get_client_pid(method_call_t * call_ptr)
 335 {
 336   int64_t pid = 0;
 337   method_return_new_single(call_ptr, DBUS_TYPE_INT64, &pid);
 338 }
 339
 340 METHOD_ARGS_BEGIN(GetAllPorts, "Get all ports")
 341   METHOD_ARG_DESCRIBE_IN("ports_list", "as", "List of all ports")
 342 METHOD_ARGS_END
 343
 344 METHOD_ARGS_BEGIN(GetGraph, "Get whole graph")
 345 METHOD_ARG_DESCRIBE_IN("known_graph_version", DBUS_TYPE_UINT64_AS_STRING, "Known graph version")
 346   METHOD_ARG_DESCRIBE_OUT("current_graph_version", DBUS_TYPE_UINT64_AS_STRING, "Current graph version")
 347   METHOD_ARG_DESCRIBE_OUT("clients_and_ports", "a(tsa(tsuu))", "Clients and their ports")
 348   METHOD_ARG_DESCRIBE_OUT("connections", "a(tstststst)", "Connections array")
 349 METHOD_ARGS_END
 350
 351 METHOD_ARGS_BEGIN(ConnectPortsByName, "Connect ports")
 352   METHOD_ARG_DESCRIBE_IN("client1_name", DBUS_TYPE_STRING_AS_STRING, "name first port client")
 353   METHOD_ARG_DESCRIBE_IN("port1_name", DBUS_TYPE_STRING_AS_STRING, "name of first port")
 354   METHOD_ARG_DESCRIBE_IN("client2_name", DBUS_TYPE_STRING_AS_STRING, "name second port client")
 355   METHOD_ARG_DESCRIBE_IN("port2_name", DBUS_TYPE_STRING_AS_STRING, "name of second port")
 356 METHOD_ARGS_END
 357
 358 METHOD_ARGS_BEGIN(ConnectPortsByID, "Connect ports")
 359   METHOD_ARG_DESCRIBE_IN("port1_id", DBUS_TYPE_UINT64_AS_STRING, "id of first port")
 360   METHOD_ARG_DESCRIBE_IN("port2_id", DBUS_TYPE_UINT64_AS_STRING, "if of second port")
 361 METHOD_ARGS_END
 362
 363 METHOD_ARGS_BEGIN(DisconnectPortsByName, "Disconnect ports")
 364   METHOD_ARG_DESCRIBE_IN("client1_name", DBUS_TYPE_STRING_AS_STRING, "name first port client")
 365   METHOD_ARG_DESCRIBE_IN("port1_name", DBUS_TYPE_STRING_AS_STRING, "name of first port")
 366   METHOD_ARG_DESCRIBE_IN("client2_name", DBUS_TYPE_STRING_AS_STRING, "name second port client")
 367   METHOD_ARG_DESCRIBE_IN("port2_name", DBUS_TYPE_STRING_AS_STRING, "name of second port")
 368 METHOD_ARGS_END
 369
 370 METHOD_ARGS_BEGIN(DisconnectPortsByID, "Disconnect ports")
 371   METHOD_ARG_DESCRIBE_IN("port1_id", DBUS_TYPE_UINT64_AS_STRING, "id of first port")
 372   METHOD_ARG_DESCRIBE_IN("port2_id", DBUS_TYPE_UINT64_AS_STRING, "if of second port")
 373 METHOD_ARGS_END
 374
 375 METHOD_ARGS_BEGIN(DisconnectPortsByConnectionID, "Disconnect ports")
 376   METHOD_ARG_DESCRIBE_IN("connection_id", DBUS_TYPE_UINT64_AS_STRING, "id of connection to disconnect")
 377 METHOD_ARGS_END
 378
 379 METHOD_ARGS_BEGIN(GetClientPID, "get process id of client")
 380   METHOD_ARG_DESCRIBE_IN("client_id", DBUS_TYPE_UINT64_AS_STRING, "id of client")
 381   METHOD_ARG_DESCRIBE_OUT("process_id", DBUS_TYPE_INT64_AS_STRING, "pid of client")
 382 METHOD_ARGS_END
 383
 384 METHODS_BEGIN
 385   METHOD_DESCRIBE(GetAllPorts, get_all_ports)
 386   METHOD_DESCRIBE(GetGraph, get_graph)
 387   METHOD_DESCRIBE(ConnectPortsByName, connect_ports_by_name)
 388   METHOD_DESCRIBE(ConnectPortsByID, connect_ports_by_id)
 389   METHOD_DESCRIBE(DisconnectPortsByName, disconnect_ports_by_name)
 390   METHOD_DESCRIBE(DisconnectPortsByID, disconnect_ports_by_id)
 391   METHOD_DESCRIBE(DisconnectPortsByConnectionID, disconnect_ports_by_connection_id)
 392   METHOD_DESCRIBE(GetClientPID, get_client_pid)
 393 METHODS_END
 394
 395 SIGNAL_ARGS_BEGIN(GraphChanged, "")
 396   SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
 397 SIGNAL_ARGS_END
 398
 399 SIGNAL_ARGS_BEGIN(ClientAppeared, "")
 400   SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
 401   SIGNAL_ARG_DESCRIBE("client_id", DBUS_TYPE_UINT64_AS_STRING, "")
 402   SIGNAL_ARG_DESCRIBE("client_name", DBUS_TYPE_STRING_AS_STRING, "")
 403 SIGNAL_ARGS_END
 404
 405 SIGNAL_ARGS_BEGIN(ClientDisappeared, "")
 406   SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
 407   SIGNAL_ARG_DESCRIBE("client_id", DBUS_TYPE_UINT64_AS_STRING, "")
 408   SIGNAL_ARG_DESCRIBE("client_name", DBUS_TYPE_STRING_AS_STRING, "")
 409 SIGNAL_ARGS_END
 410
 411 SIGNAL_ARGS_BEGIN(PortAppeared, "")
 412   SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
 413   SIGNAL_ARG_DESCRIBE("client_id", DBUS_TYPE_UINT64_AS_STRING, "")
 414   SIGNAL_ARG_DESCRIBE("client_name", DBUS_TYPE_STRING_AS_STRING, "")
 415   SIGNAL_ARG_DESCRIBE("port_id", DBUS_TYPE_UINT64_AS_STRING, "")
 416   SIGNAL_ARG_DESCRIBE("port_name", DBUS_TYPE_STRING_AS_STRING, "")
 417   SIGNAL_ARG_DESCRIBE("port_flags", DBUS_TYPE_UINT32_AS_STRING, "")
 418   SIGNAL_ARG_DESCRIBE("port_type", DBUS_TYPE_UINT32_AS_STRING, "")
 419 SIGNAL_ARGS_END
 420
 421 SIGNAL_ARGS_BEGIN(PortDisappeared, "")
 422   SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
 423   SIGNAL_ARG_DESCRIBE("client_id", DBUS_TYPE_UINT64_AS_STRING, "")
 424   SIGNAL_ARG_DESCRIBE("client_name", DBUS_TYPE_STRING_AS_STRING, "")
 425   SIGNAL_ARG_DESCRIBE("port_id", DBUS_TYPE_UINT64_AS_STRING, "")
 426   SIGNAL_ARG_DESCRIBE("port_name", DBUS_TYPE_STRING_AS_STRING, "")
 427 SIGNAL_ARGS_END
 428
 429 SIGNAL_ARGS_BEGIN(PortsConnected, "")
 430   SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
 431   SIGNAL_ARG_DESCRIBE("client1_id", DBUS_TYPE_UINT64_AS_STRING, "")
 432   SIGNAL_ARG_DESCRIBE("client1_name", DBUS_TYPE_STRING_AS_STRING, "")
 433   SIGNAL_ARG_DESCRIBE("port1_id", DBUS_TYPE_UINT64_AS_STRING, "")
 434   SIGNAL_ARG_DESCRIBE("port1_name", DBUS_TYPE_STRING_AS_STRING, "")
 435   SIGNAL_ARG_DESCRIBE("client2_id", DBUS_TYPE_UINT64_AS_STRING, "")
 436   SIGNAL_ARG_DESCRIBE("client2_name", DBUS_TYPE_STRING_AS_STRING, "")
 437   SIGNAL_ARG_DESCRIBE("port2_id", DBUS_TYPE_UINT64_AS_STRING, "")
 438   SIGNAL_ARG_DESCRIBE("port2_name", DBUS_TYPE_STRING_AS_STRING, "")
 439   SIGNAL_ARG_DESCRIBE("connection_id", DBUS_TYPE_UINT64_AS_STRING, "")
 440 SIGNAL_ARGS_END
 441
 442 SIGNAL_ARGS_BEGIN(PortsDisconnected, "")
 443   SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
 444   SIGNAL_ARG_DESCRIBE("client1_id", DBUS_TYPE_UINT64_AS_STRING, "")
 445   SIGNAL_ARG_DESCRIBE("client1_name", DBUS_TYPE_STRING_AS_STRING, "")
 446   SIGNAL_ARG_DESCRIBE("port1_id", DBUS_TYPE_UINT64_AS_STRING, "")
 447   SIGNAL_ARG_DESCRIBE("port1_name", DBUS_TYPE_STRING_AS_STRING, "")
 448   SIGNAL_ARG_DESCRIBE("client2_id", DBUS_TYPE_UINT64_AS_STRING, "")
 449   SIGNAL_ARG_DESCRIBE("client2_name", DBUS_TYPE_STRING_AS_STRING, "")
 450   SIGNAL_ARG_DESCRIBE("port2_id", DBUS_TYPE_UINT64_AS_STRING, "")
 451   SIGNAL_ARG_DESCRIBE("port2_name", DBUS_TYPE_STRING_AS_STRING, "")
 452   SIGNAL_ARG_DESCRIBE("connection_id", DBUS_TYPE_UINT64_AS_STRING, "")
 453 SIGNAL_ARGS_END
 454
 455 SIGNALS_BEGIN
 456   SIGNAL_DESCRIBE(GraphChanged)
 457   SIGNAL_DESCRIBE(ClientAppeared)
 458   SIGNAL_DESCRIBE(ClientDisappeared)
 459   SIGNAL_DESCRIBE(PortAppeared)
 460   SIGNAL_DESCRIBE(PortDisappeared)
 461   SIGNAL_DESCRIBE(PortsConnected)
 462   SIGNAL_DESCRIBE(PortsDisconnected)
 463 SIGNALS_END
 464
 465 INTERFACE_BEGIN(g_interface_patchbay, "org.jackaudio.JackPatchbay")
 466   INTERFACE_DEFAULT_HANDLER
 467   INTERFACE_EXPOSE_METHODS
 468   INTERFACE_EXPOSE_SIGNALS
 469 INTERFACE_END