dbus-protocol: Connection handling for local connections.

src/pulsecore/core.h

@@ -42,6 +42,13 @@ typedef struct pa_core pa_core;
 #include <pulsecore/sink-input.h>
 #include <pulsecore/msgobject.h>
 
+typedef enum pa_server_type {
+    PA_SERVER_TYPE_UNSET,
+    PA_SERVER_TYPE_USER,
+    PA_SERVER_TYPE_SYSTEM,
+    PA_SERVER_TYPE_NONE
+} pa_server_type_t;
+
 typedef enum pa_core_state {
     PA_CORE_STARTUP,
     PA_CORE_RUNNING,
@@ -152,6 +159,8 @@ struct pa_core {
     pa_resample_method_t resample_method;
     int realtime_priority;
 
+    pa_server_type_t server_type;
+
     /* hooks */
     pa_hook hooks[PA_CORE_HOOK_MAX];
 };

src/pulsecore/dbus-common.c

@@ -0,0 +1,73 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2009 Tanu Kaskinen
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2.1 of the License,
+  or (at your option) any later version.
+
+  PulseAudio 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 Lesser General Public License
+  along with PulseAudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <dbus/dbus.h>
+
+#include <pulsecore/core-util.h>
+
+#include "dbus-common.h"
+
+char *pa_get_dbus_address_from_server_type(pa_server_type_t server_type) {
+    char *address = NULL;
+    char *runtime_path = NULL;
+    char *escaped_path = NULL;
+
+    switch (server_type) {
+        case PA_SERVER_TYPE_USER:
+            if (!(runtime_path = pa_runtime_path(PA_DBUS_SOCKET_NAME))) {
+                pa_log("pa_runtime_path() failed.");
+                break;
+            }
+
+            if (!(escaped_path = dbus_address_escape_value(runtime_path))) {
+                pa_log("dbus_address_escape_value() failed.");
+                break;
+            }
+
+            address = pa_sprintf_malloc("unix:path=%s", escaped_path);
+            break;
+
+        case PA_SERVER_TYPE_SYSTEM:
+            if (!(escaped_path = dbus_address_escape_value(PA_DBUS_SYSTEM_SOCKET_PATH))) {
+                pa_log("dbus_address_escape_value() failed.");
+                break;
+            }
+
+            address = pa_sprintf_malloc("unix:path=%s", escaped_path);
+            break;
+
+        case PA_SERVER_TYPE_NONE:
+            address = pa_xnew0(char, 1);
+            break;
+
+        default:
+            pa_assert_not_reached();
+    }
+
+    pa_xfree(runtime_path);
+    pa_xfree(escaped_path);
+
+    return address;
+}

src/pulsecore/dbus-common.h

@@ -0,0 +1,39 @@
+#ifndef foodbuscommonhfoo
+#define foodbuscommonhfoo
+
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2009 Tanu Kaskinen
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2.1 of the License,
+  or (at your option) any later version.
+
+  PulseAudio 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 Lesser General Public License
+  along with PulseAudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#include <pulsecore/core.h>
+#include <pulsecore/macro.h>
+
+#define PA_DBUS_DEFAULT_PORT 24883
+#define PA_DBUS_SOCKET_NAME "dbus_socket"
+
+#define PA_DBUS_SYSTEM_SOCKET_PATH PA_SYSTEM_RUNTIME_PATH PA_PATH_SEP PA_DBUS_SOCKET_NAME
+
+/* Returns the default address of the server type in the escaped form. For
+ * PA_SERVER_TYPE_NONE an empty string is returned. The caller frees the
+ * string. This function may fail in some rare cases, in which case NULL is
+ * returned. */
+char *pa_get_dbus_address_from_server_type(pa_server_type_t server_type);
+
+#endif

src/pulsecore/dbus-util.c

@@ -276,6 +276,27 @@ pa_dbus_wrap_connection* pa_dbus_wrap_connection_new(pa_mainloop_api *m, DBusBus
     return pconn;
 }
 
+pa_dbus_wrap_connection* pa_dbus_wrap_connection_new_from_existing(pa_mainloop_api *m, DBusConnection *conn) {
+    pa_dbus_wrap_connection *pconn;
+
+    pa_assert(m);
+    pa_assert(conn);
+
+    pconn = pa_xnew(pa_dbus_wrap_connection, 1);
+    pconn->mainloop = m;
+    pconn->connection = dbus_connection_ref(conn);
+
+    dbus_connection_set_exit_on_disconnect(conn, FALSE);
+    dbus_connection_set_dispatch_status_function(conn, dispatch_status, pconn, NULL);
+    dbus_connection_set_watch_functions(conn, add_watch, remove_watch, toggle_watch, pconn, NULL);
+    dbus_connection_set_timeout_functions(conn, add_timeout, remove_timeout, toggle_timeout, pconn, NULL);
+    dbus_connection_set_wakeup_main_function(conn, wakeup_main, pconn, NULL);
+
+    pconn->dispatch_event = pconn->mainloop->defer_new(pconn->mainloop, dispatch_cb, conn);
+
+    return pconn;
+}
+
 void pa_dbus_wrap_connection_free(pa_dbus_wrap_connection* c) {
     pa_assert(c);
 

src/pulsecore/dbus-util.h

@@ -31,6 +31,7 @@
 typedef struct pa_dbus_wrap_connection pa_dbus_wrap_connection;
 
 pa_dbus_wrap_connection* pa_dbus_wrap_connection_new(pa_mainloop_api *mainloop, DBusBusType type, DBusError *error);
+pa_dbus_wrap_connection* pa_dbus_wrap_connection_new_from_existing(pa_mainloop_api *mainloop, DBusConnection *conn);
 void pa_dbus_wrap_connection_free(pa_dbus_wrap_connection* conn);
 
 DBusConnection* pa_dbus_wrap_connection_get(pa_dbus_wrap_connection *conn);