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ladish/daemon/graph_iface.c

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/* -*- Mode: C ; c-basic-offset: 2 -*- */
/*
* LADI Session Handler (ladish)
*
* Copyright (C) 2008, 2009 Nedko Arnaudov <nedko@arnaudov.name>
* Copyright (C) 2008 Juuso Alasuutari
*
**************************************************************************
* This file contains implementation of the D-Bus patchbay interface helpers
**************************************************************************
*
* 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 "graph_iface.h"
#include "../dbus/error.h"
#include "../dbus_constants.h"
struct graph_implementator
{
char * opath;
struct list_head clients;
uint64_t graph_version;
uint64_t next_client_id;
uint64_t next_port_id;
uint64_t next_connection_id;
};
#define impl_ptr ((struct graph_implementator *)call_ptr->iface_context)
static void get_all_ports(struct dbus_method_call * call_ptr)
{
DBusMessageIter iter, sub_iter;
call_ptr->reply = dbus_message_new_method_return(call_ptr->message);
if (call_ptr->reply == NULL)
{
goto fail;
}
dbus_message_iter_init_append(call_ptr->reply, &iter);
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub_iter))
{
goto fail_unref;
}
if (!dbus_message_iter_close_container(&iter, &sub_iter))
{
goto fail_unref;
}
return;
fail_unref:
dbus_message_unref(call_ptr->reply);
call_ptr->reply = NULL;
fail:
lash_error("Ran out of memory trying to construct method return");
}
static void get_graph(struct dbus_method_call * call_ptr)
{
dbus_uint64_t known_version;
dbus_uint64_t current_version;
DBusMessageIter iter;
DBusMessageIter clients_array_iter;
DBusMessageIter connections_array_iter;
DBusMessageIter client_struct_iter;
struct list_head * client_node_ptr;
ladish_client_handle client_handle;
uint64_t id;
const char * name;
DBusMessageIter ports_array_iter;
#if 0
DBusMessageIter port_struct_iter;
DBusMessageIter connection_struct_iter;
#endif
//lash_info("get_graph() called");
if (!dbus_message_get_args(call_ptr->message, &g_dbus_error, DBUS_TYPE_UINT64, &known_version, DBUS_TYPE_INVALID))
{
lash_dbus_error(call_ptr, LASH_DBUS_ERROR_INVALID_ARGS, "Invalid arguments to method \"%s\": %s", call_ptr->method_name, g_dbus_error.message);
dbus_error_free(&g_dbus_error);
return;
}
//lash_info("Getting graph, known version is %" PRIu64, known_version);
call_ptr->reply = dbus_message_new_method_return(call_ptr->message);
if (call_ptr->reply == NULL)
{
lash_error("Ran out of memory trying to construct method return");
goto exit;
}
dbus_message_iter_init_append(call_ptr->reply, &iter);
current_version = impl_ptr->graph_version;
if (known_version > current_version)
{
lash_dbus_error(
call_ptr,
LASH_DBUS_ERROR_INVALID_ARGS,
"known graph version %" PRIu64 " is newer than actual version %" PRIu64,
known_version,
current_version);
goto exit;
}
if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_UINT64, &current_version))
{
goto nomem;
}
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(tsa(tsuu))", &clients_array_iter))
{
goto nomem;
}
if (known_version < current_version)
{
list_for_each(client_node_ptr, &impl_ptr->clients)
{
client_handle = ladish_client_get_by_graph_link(client_node_ptr);
if (!dbus_message_iter_open_container (&clients_array_iter, DBUS_TYPE_STRUCT, NULL, &client_struct_iter))
{
goto nomem_close_clients_array;
}
id = ladish_client_get_graph_id(client_handle);
if (!dbus_message_iter_append_basic(&client_struct_iter, DBUS_TYPE_UINT64, &id))
{
goto nomem_close_client_struct;
}
name = ladish_client_get_graph_name(client_handle, impl_ptr->opath);
lash_info("client '%s' (%u)", name, (unsigned int)id);
if (!dbus_message_iter_append_basic(&client_struct_iter, DBUS_TYPE_STRING, &name))
{
goto nomem_close_client_struct;
}
if (!dbus_message_iter_open_container(&client_struct_iter, DBUS_TYPE_ARRAY, "(tsuu)", &ports_array_iter))
{
goto nomem_close_client_struct;
}
#if 0
list_for_each(port_node_ptr, &client_ptr->ports)
{
port_ptr = list_entry(port_node_ptr, struct jack_graph_port, siblings_client);
if (!dbus_message_iter_open_container(&ports_array_iter, DBUS_TYPE_STRUCT, NULL, &port_struct_iter))
{
goto nomem_close_ports_array;
}
if (!dbus_message_iter_append_basic(&port_struct_iter, DBUS_TYPE_UINT64, &port_ptr->id))
{
goto nomem_close_port_struct;
}
if (!dbus_message_iter_append_basic(&port_struct_iter, DBUS_TYPE_STRING, &port_ptr->name))
{
goto nomem_close_port_struct;
}
if (!dbus_message_iter_append_basic(&port_struct_iter, DBUS_TYPE_UINT32, &port_ptr->flags))
{
goto nomem_close_port_struct;
}
if (!dbus_message_iter_append_basic(&port_struct_iter, DBUS_TYPE_UINT32, &port_ptr->type))
{
goto nomem_close_port_struct;
}
if (!dbus_message_iter_close_container(&ports_array_iter, &port_struct_iter))
{
goto nomem_close_ports_array;
}
}
#endif
if (!dbus_message_iter_close_container(&client_struct_iter, &ports_array_iter))
{
goto nomem_close_client_struct;
}
if (!dbus_message_iter_close_container(&clients_array_iter, &client_struct_iter))
{
goto nomem_close_clients_array;
}
}
}
if (!dbus_message_iter_close_container(&iter, &clients_array_iter))
{
goto nomem;
}
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(tstststst)", &connections_array_iter))
{
goto nomem;
}
if (known_version < current_version)
{
#if 0
list_for_each(connection_node_ptr, &patchbay_ptr->graph.connections)
{
connection_ptr = list_entry(connection_node_ptr, struct jack_graph_connection, siblings);
if (!dbus_message_iter_open_container(&connections_array_iter, DBUS_TYPE_STRUCT, NULL, &connection_struct_iter))
{
goto nomem_close_connections_array;
}
if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_UINT64, &connection_ptr->port1->client->id))
{
goto nomem_close_connection_struct;
}
if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_STRING, &connection_ptr->port1->client->name))
{
goto nomem_close_connection_struct;
}
if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_UINT64, &connection_ptr->port1->id))
{
goto nomem_close_connection_struct;
}
if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_STRING, &connection_ptr->port1->name))
{
goto nomem_close_connection_struct;
}
if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_UINT64, &connection_ptr->port2->client->id))
{
goto nomem_close_connection_struct;
}
if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_STRING, &connection_ptr->port2->client->name))
{
goto nomem_close_connection_struct;
}
if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_UINT64, &connection_ptr->port2->id))
{
goto nomem_close_connection_struct;
}
if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_STRING, &connection_ptr->port2->name))
{
goto nomem_close_connection_struct;
}
if (!dbus_message_iter_append_basic(&connection_struct_iter, DBUS_TYPE_UINT64, &connection_ptr->id))
{
goto nomem_close_connection_struct;
}
if (!dbus_message_iter_close_container(&connections_array_iter, &connection_struct_iter))
{
goto nomem_close_connections_array;
}
}
#endif
}
if (!dbus_message_iter_close_container(&iter, &connections_array_iter))
{
goto nomem;
}
return;
#if 0
nomem_close_connection_struct:
dbus_message_iter_close_container(&connections_array_iter, &connection_struct_iter);
nomem_close_connections_array:
dbus_message_iter_close_container(&iter, &connections_array_iter);
goto nomem_unlock;
nomem_close_port_struct:
dbus_message_iter_close_container(&ports_array_iter, &port_struct_iter);
nomem_close_ports_array:
dbus_message_iter_close_container(&client_struct_iter, &ports_array_iter);
#endif
nomem_close_client_struct:
dbus_message_iter_close_container(&clients_array_iter, &client_struct_iter);
nomem_close_clients_array:
dbus_message_iter_close_container(&iter, &clients_array_iter);
nomem:
dbus_message_unref(call_ptr->reply);
call_ptr->reply = NULL;
lash_error("Ran out of memory trying to construct method return");
exit:
return;
}
static void connect_ports_by_name(struct dbus_method_call * call_ptr)
{
method_return_new_void(call_ptr);
}
static void connect_ports_by_id(struct dbus_method_call * call_ptr)
{
method_return_new_void(call_ptr);
}
static void disconnect_ports_by_name(struct dbus_method_call * call_ptr)
{
method_return_new_void(call_ptr);
}
static void disconnect_ports_by_id(struct dbus_method_call * call_ptr)
{
method_return_new_void(call_ptr);
}
static void disconnect_ports_by_connection_id(struct dbus_method_call * call_ptr)
{
method_return_new_void(call_ptr);
}
static void get_client_pid(struct dbus_method_call * call_ptr)
{
int64_t pid = 0;
method_return_new_single(call_ptr, DBUS_TYPE_INT64, &pid);
}
#undef impl_ptr
bool ladish_graph_create(ladish_graph_handle * graph_handle_ptr, const char * opath)
{
struct graph_implementator * impl_ptr;
impl_ptr = malloc(sizeof(struct graph_implementator));
if (impl_ptr == NULL)
{
lash_error("malloc() failed to allocate struct graph_implementator");
return false;
}
impl_ptr->opath = strdup(opath);
if (impl_ptr->opath == NULL)
{
free(impl_ptr);
return false;
}
INIT_LIST_HEAD(&impl_ptr->clients);
impl_ptr->graph_version = 1;
impl_ptr->next_client_id = 1;
impl_ptr->next_port_id = 1;
impl_ptr->next_connection_id = 1;
*graph_handle_ptr = (ladish_graph_handle)impl_ptr;
return true;
}
#define impl_ptr ((struct graph_implementator *)graph_handle)
void ladish_graph_destroy(ladish_graph_handle graph_handle)
{
free(impl_ptr->opath);
free(impl_ptr);
}
void ladish_graph_clear(ladish_graph_handle graph_handle)
{
}
void * ladish_graph_get_dbus_context(ladish_graph_handle graph_handle)
{
return graph_handle;
}
void ladish_graph_add_client(ladish_graph_handle graph_handle, ladish_client_handle client, const char * opath)
{
const char * name;
ladish_client_set_graph_id(client, impl_ptr->next_client_id++);
list_add_tail(ladish_client_get_graph_link(client), &impl_ptr->clients);
impl_ptr->graph_version++;
name = ladish_client_get_graph_name(client, opath);
lash_info("adding client '%s' (%p)", name, client);
assert(name != NULL);
dbus_signal_emit(
g_dbus_connection,
opath,
JACKDBUS_IFACE_PATCHBAY,
"ClientAppeared",
"tts",
&impl_ptr->graph_version,
&impl_ptr->next_client_id,
&name);
}
#undef impl_ptr
METHOD_ARGS_BEGIN(GetAllPorts, "Get all ports")
METHOD_ARG_DESCRIBE_IN("ports_list", "as", "List of all ports")
METHOD_ARGS_END
METHOD_ARGS_BEGIN(GetGraph, "Get whole graph")
METHOD_ARG_DESCRIBE_IN("known_graph_version", DBUS_TYPE_UINT64_AS_STRING, "Known graph version")
METHOD_ARG_DESCRIBE_OUT("current_graph_version", DBUS_TYPE_UINT64_AS_STRING, "Current graph version")
METHOD_ARG_DESCRIBE_OUT("clients_and_ports", "a(tsa(tsuu))", "Clients and their ports")
METHOD_ARG_DESCRIBE_OUT("connections", "a(tstststst)", "Connections array")
METHOD_ARGS_END
METHOD_ARGS_BEGIN(ConnectPortsByName, "Connect ports")
METHOD_ARG_DESCRIBE_IN("client1_name", DBUS_TYPE_STRING_AS_STRING, "name first port client")
METHOD_ARG_DESCRIBE_IN("port1_name", DBUS_TYPE_STRING_AS_STRING, "name of first port")
METHOD_ARG_DESCRIBE_IN("client2_name", DBUS_TYPE_STRING_AS_STRING, "name second port client")
METHOD_ARG_DESCRIBE_IN("port2_name", DBUS_TYPE_STRING_AS_STRING, "name of second port")
METHOD_ARGS_END
METHOD_ARGS_BEGIN(ConnectPortsByID, "Connect ports")
METHOD_ARG_DESCRIBE_IN("port1_id", DBUS_TYPE_UINT64_AS_STRING, "id of first port")
METHOD_ARG_DESCRIBE_IN("port2_id", DBUS_TYPE_UINT64_AS_STRING, "if of second port")
METHOD_ARGS_END
METHOD_ARGS_BEGIN(DisconnectPortsByName, "Disconnect ports")
METHOD_ARG_DESCRIBE_IN("client1_name", DBUS_TYPE_STRING_AS_STRING, "name first port client")
METHOD_ARG_DESCRIBE_IN("port1_name", DBUS_TYPE_STRING_AS_STRING, "name of first port")
METHOD_ARG_DESCRIBE_IN("client2_name", DBUS_TYPE_STRING_AS_STRING, "name second port client")
METHOD_ARG_DESCRIBE_IN("port2_name", DBUS_TYPE_STRING_AS_STRING, "name of second port")
METHOD_ARGS_END
METHOD_ARGS_BEGIN(DisconnectPortsByID, "Disconnect ports")
METHOD_ARG_DESCRIBE_IN("port1_id", DBUS_TYPE_UINT64_AS_STRING, "id of first port")
METHOD_ARG_DESCRIBE_IN("port2_id", DBUS_TYPE_UINT64_AS_STRING, "if of second port")
METHOD_ARGS_END
METHOD_ARGS_BEGIN(DisconnectPortsByConnectionID, "Disconnect ports")
METHOD_ARG_DESCRIBE_IN("connection_id", DBUS_TYPE_UINT64_AS_STRING, "id of connection to disconnect")
METHOD_ARGS_END
METHOD_ARGS_BEGIN(GetClientPID, "get process id of client")
METHOD_ARG_DESCRIBE_IN("client_id", DBUS_TYPE_UINT64_AS_STRING, "id of client")
METHOD_ARG_DESCRIBE_OUT("process_id", DBUS_TYPE_INT64_AS_STRING, "pid of client")
METHOD_ARGS_END
METHODS_BEGIN
METHOD_DESCRIBE(GetAllPorts, get_all_ports)
METHOD_DESCRIBE(GetGraph, get_graph)
METHOD_DESCRIBE(ConnectPortsByName, connect_ports_by_name)
METHOD_DESCRIBE(ConnectPortsByID, connect_ports_by_id)
METHOD_DESCRIBE(DisconnectPortsByName, disconnect_ports_by_name)
METHOD_DESCRIBE(DisconnectPortsByID, disconnect_ports_by_id)
METHOD_DESCRIBE(DisconnectPortsByConnectionID, disconnect_ports_by_connection_id)
METHOD_DESCRIBE(GetClientPID, get_client_pid)
METHODS_END
SIGNAL_ARGS_BEGIN(GraphChanged, "")
SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARGS_END
SIGNAL_ARGS_BEGIN(ClientAppeared, "")
SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARGS_END
SIGNAL_ARGS_BEGIN(ClientDisappeared, "")
SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARGS_END
SIGNAL_ARGS_BEGIN(PortAppeared, "")
SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port_flags", DBUS_TYPE_UINT32_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port_type", DBUS_TYPE_UINT32_AS_STRING, "")
SIGNAL_ARGS_END
SIGNAL_ARGS_BEGIN(PortDisappeared, "")
SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARGS_END
SIGNAL_ARGS_BEGIN(PortsConnected, "")
SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client1_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client1_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port1_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port1_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client2_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client2_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port2_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port2_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("connection_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARGS_END
SIGNAL_ARGS_BEGIN(PortsDisconnected, "")
SIGNAL_ARG_DESCRIBE("new_graph_version", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client1_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client1_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port1_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port1_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client2_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("client2_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port2_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("port2_name", DBUS_TYPE_STRING_AS_STRING, "")
SIGNAL_ARG_DESCRIBE("connection_id", DBUS_TYPE_UINT64_AS_STRING, "")
SIGNAL_ARGS_END
SIGNALS_BEGIN
SIGNAL_DESCRIBE(GraphChanged)
SIGNAL_DESCRIBE(ClientAppeared)
SIGNAL_DESCRIBE(ClientDisappeared)
SIGNAL_DESCRIBE(PortAppeared)
SIGNAL_DESCRIBE(PortDisappeared)
SIGNAL_DESCRIBE(PortsConnected)
SIGNAL_DESCRIBE(PortsDisconnected)
SIGNALS_END
INTERFACE_BEGIN(g_interface_patchbay, JACKDBUS_IFACE_PATCHBAY)
INTERFACE_DEFAULT_HANDLER
INTERFACE_EXPOSE_METHODS
INTERFACE_EXPOSE_SIGNALS
INTERFACE_END
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