You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
-#include "config.h"
+#include <config.h>
#ifdef HAVE_DBUS
-#include <stdlib.h>
#include <stdio.h>
#include <dbus/dbus.h>
#include <setjmp.h>
#include "frame.h"
#include "termhooks.h"
#include "keyboard.h"
+#include "process.h"
\f
/* Subroutines. */
Lisp_Object Qdbus_init_bus;
+Lisp_Object Qdbus_close_bus;
Lisp_Object Qdbus_get_unique_name;
Lisp_Object Qdbus_call_method;
Lisp_Object Qdbus_call_method_asynchronously;
Lisp_Object QCdbus_type_array, QCdbus_type_variant;
Lisp_Object QCdbus_type_struct, QCdbus_type_dict_entry;
+/* Registered buses. */
+Lisp_Object Vdbus_registered_buses;
+
/* Hash table which keeps function definitions. */
Lisp_Object Vdbus_registered_objects_table;
} while (0)
/* Macros for debugging. In order to enable them, build with
- "make MYCPPFLAGS='-DDBUS_DEBUG -Wall'". */
+ "MYCPPFLAGS='-DDBUS_DEBUG -Wall' make". */
#ifdef DBUS_DEBUG
#define XD_DEBUG_MESSAGE(...) \
do { \
/* Determine the DBusType of a given Lisp symbol. OBJECT must be one
of the predefined D-Bus type symbols. */
static int
-xd_symbol_to_dbus_type (object)
- Lisp_Object object;
+xd_symbol_to_dbus_type (Lisp_Object object)
{
return
((EQ (object, QCdbus_type_byte)) ? DBUS_TYPE_BYTE
signature is embedded, or DBUS_TYPE_INVALID. It is needed for the
check that DBUS_TYPE_DICT_ENTRY occurs only as array element. */
static void
-xd_signature (signature, dtype, parent_type, object)
- char *signature;
- unsigned int dtype, parent_type;
- Lisp_Object object;
+xd_signature (char *signature, unsigned int dtype, unsigned int parent_type, Lisp_Object object)
{
unsigned int subtype;
Lisp_Object elt;
`dbus-send-signal', into corresponding C values appended as
arguments to a D-Bus message. */
static void
-xd_append_arg (dtype, object, iter)
- unsigned int dtype;
- Lisp_Object object;
- DBusMessageIter *iter;
+xd_append_arg (unsigned int dtype, Lisp_Object object, DBusMessageIter *iter)
{
char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH];
DBusMessageIter subiter;
D-Bus message must be a valid DBusType. Compound D-Bus types
result always in a Lisp list. */
static Lisp_Object
-xd_retrieve_arg (dtype, iter)
- unsigned int dtype;
- DBusMessageIter *iter;
+xd_retrieve_arg (unsigned int dtype, DBusMessageIter *iter)
{
switch (dtype)
}
}
-/* Initialize D-Bus connection. BUS is a Lisp symbol, either :system
- or :session. It tells which D-Bus to be initialized. */
+/* Initialize D-Bus connection. BUS is either a Lisp symbol, :system
+ or :session, or a string denoting the bus address. It tells which
+ D-Bus to initialize. If RAISE_ERROR is non-zero, signal an error
+ when the connection cannot be initialized. */
static DBusConnection *
-xd_initialize (bus)
- Lisp_Object bus;
+xd_initialize (Lisp_Object bus, int raise_error)
{
DBusConnection *connection;
DBusError derror;
/* Parameter check. */
- CHECK_SYMBOL (bus);
- if (!(EQ (bus, QCdbus_system_bus) || EQ (bus, QCdbus_session_bus)))
- XD_SIGNAL2 (build_string ("Wrong bus name"), bus);
+ if (!STRINGP (bus))
+ {
+ CHECK_SYMBOL (bus);
+ if (!(EQ (bus, QCdbus_system_bus) || EQ (bus, QCdbus_session_bus)))
+ {
+ if (raise_error)
+ XD_SIGNAL2 (build_string ("Wrong bus name"), bus);
+ else
+ return NULL;
+ }
- /* We do not want to have an autolaunch for the session bus. */
- if (EQ (bus, QCdbus_session_bus)
- && getenv ("DBUS_SESSION_BUS_ADDRESS") == NULL)
- XD_SIGNAL2 (build_string ("No connection to bus"), bus);
+ /* We do not want to have an autolaunch for the session bus. */
+ if (EQ (bus, QCdbus_session_bus)
+ && getenv ("DBUS_SESSION_BUS_ADDRESS") == NULL)
+ {
+ if (raise_error)
+ XD_SIGNAL2 (build_string ("No connection to bus"), bus);
+ else
+ return NULL;
+ }
+ }
/* Open a connection to the bus. */
dbus_error_init (&derror);
- if (EQ (bus, QCdbus_system_bus))
- connection = dbus_bus_get (DBUS_BUS_SYSTEM, &derror);
+ if (STRINGP (bus))
+ connection = dbus_connection_open (SDATA (bus), &derror);
else
- connection = dbus_bus_get (DBUS_BUS_SESSION, &derror);
+ if (EQ (bus, QCdbus_system_bus))
+ connection = dbus_bus_get (DBUS_BUS_SYSTEM, &derror);
+ else
+ connection = dbus_bus_get (DBUS_BUS_SESSION, &derror);
if (dbus_error_is_set (&derror))
- XD_ERROR (derror);
+ {
+ if (raise_error)
+ XD_ERROR (derror);
+ else
+ connection = NULL;
+ }
- if (connection == NULL)
+ /* If it is not the system or session bus, we must register
+ ourselves. Otherwise, we have called dbus_bus_get, which has
+ configured us to exit if the connection closes - we undo this
+ setting. */
+ if (connection != NULL)
+ {
+ if (STRINGP (bus))
+ dbus_bus_register (connection, &derror);
+ else
+ dbus_connection_set_exit_on_disconnect (connection, FALSE);
+ }
+
+ if (dbus_error_is_set (&derror))
+ {
+ if (raise_error)
+ XD_ERROR (derror);
+ else
+ connection = NULL;
+ }
+
+ if (connection == NULL && raise_error)
XD_SIGNAL2 (build_string ("No connection to bus"), bus);
/* Cleanup. */
return connection;
}
-
-/* Add connection file descriptor to input_wait_mask, in order to
- let select() detect, whether a new message has been arrived. */
-dbus_bool_t
-xd_add_watch (watch, data)
- DBusWatch *watch;
- void *data;
+/* Return the file descriptor for WATCH, -1 if not found. */
+static int
+xd_find_watch_fd (DBusWatch *watch)
{
- /* We check only for incoming data. */
- if (dbus_watch_get_flags (watch) & DBUS_WATCH_READABLE)
- {
#if HAVE_DBUS_WATCH_GET_UNIX_FD
- /* TODO: Reverse these on Win32, which prefers the opposite. */
- int fd = dbus_watch_get_unix_fd(watch);
- if (fd == -1)
- fd = dbus_watch_get_socket(watch);
+ /* TODO: Reverse these on Win32, which prefers the opposite. */
+ int fd = dbus_watch_get_unix_fd (watch);
+ if (fd == -1)
+ fd = dbus_watch_get_socket (watch);
#else
- int fd = dbus_watch_get_fd(watch);
+ int fd = dbus_watch_get_fd (watch);
#endif
- XD_DEBUG_MESSAGE ("fd %d", fd);
+ return fd;
+}
- if (fd == -1)
- return FALSE;
+/* Prototype. */
+static void
+xd_read_queued_messages (int fd, void *data, int for_read);
- /* Add the file descriptor to input_wait_mask. */
- add_keyboard_wait_descriptor (fd);
- }
+/* Start monitoring WATCH for possible I/O. */
+static dbus_bool_t
+xd_add_watch (DBusWatch *watch, void *data)
+{
+ unsigned int flags = dbus_watch_get_flags (watch);
+ int fd = xd_find_watch_fd (watch);
- /* Return. */
+ XD_DEBUG_MESSAGE ("fd %d, write %d, enabled %d",
+ fd, flags & DBUS_WATCH_WRITABLE,
+ dbus_watch_get_enabled (watch));
+
+ if (fd == -1)
+ return FALSE;
+
+ if (dbus_watch_get_enabled (watch))
+ {
+ if (flags & DBUS_WATCH_WRITABLE)
+ add_write_fd (fd, xd_read_queued_messages, data);
+ if (flags & DBUS_WATCH_READABLE)
+ add_read_fd (fd, xd_read_queued_messages, data);
+ }
return TRUE;
}
-/* Remove connection file descriptor from input_wait_mask. DATA is
- the used bus, either QCdbus_system_bus or QCdbus_session_bus. */
-void
-xd_remove_watch (watch, data)
- DBusWatch *watch;
- void *data;
+/* Stop monitoring WATCH for possible I/O.
+ DATA is the used bus, either a string or QCdbus_system_bus or
+ QCdbus_session_bus. */
+static void
+xd_remove_watch (DBusWatch *watch, void *data)
{
- /* We check only for incoming data. */
- if (dbus_watch_get_flags (watch) & DBUS_WATCH_READABLE)
- {
-#if HAVE_DBUS_WATCH_GET_UNIX_FD
- /* TODO: Reverse these on Win32, which prefers the opposite. */
- int fd = dbus_watch_get_unix_fd(watch);
- if (fd == -1)
- fd = dbus_watch_get_socket(watch);
-#else
- int fd = dbus_watch_get_fd(watch);
-#endif
- XD_DEBUG_MESSAGE ("fd %d", fd);
+ unsigned int flags = dbus_watch_get_flags (watch);
+ int fd = xd_find_watch_fd (watch);
- if (fd == -1)
- return;
+ XD_DEBUG_MESSAGE ("fd %d", fd);
- /* Unset session environment. */
- if ((data != NULL) && (data == (void*) XHASH (QCdbus_session_bus)))
- {
- XD_DEBUG_MESSAGE ("unsetenv DBUS_SESSION_BUS_ADDRESS");
- unsetenv ("DBUS_SESSION_BUS_ADDRESS");
- }
+ if (fd == -1)
+ return;
- /* Remove the file descriptor from input_wait_mask. */
- delete_keyboard_wait_descriptor (fd);
+ /* Unset session environment. */
+ if (data != NULL && data == (void*) XHASH (QCdbus_session_bus))
+ {
+ XD_DEBUG_MESSAGE ("unsetenv DBUS_SESSION_BUS_ADDRESS");
+ unsetenv ("DBUS_SESSION_BUS_ADDRESS");
}
- /* Return. */
- return;
+ if (flags & DBUS_WATCH_WRITABLE)
+ delete_write_fd (fd);
+ if (flags & DBUS_WATCH_READABLE)
+ delete_read_fd (fd);
+}
+
+/* Toggle monitoring WATCH for possible I/O. */
+static void
+xd_toggle_watch (DBusWatch *watch, void *data)
+{
+ if (dbus_watch_get_enabled (watch))
+ xd_add_watch (watch, data);
+ else
+ xd_remove_watch (watch, data);
}
DEFUN ("dbus-init-bus", Fdbus_init_bus, Sdbus_init_bus, 1, 1, 0,
- doc: /* Initialize connection to D-Bus BUS.
-This is an internal function, it shall not be used outside dbus.el. */)
- (bus)
- Lisp_Object bus;
+ doc: /* Initialize connection to D-Bus BUS. */)
+ (Lisp_Object bus)
{
DBusConnection *connection;
- /* Check parameters. */
- CHECK_SYMBOL (bus);
-
/* Open a connection to the bus. */
- connection = xd_initialize (bus);
+ connection = xd_initialize (bus, TRUE);
/* Add the watch functions. We pass also the bus as data, in order
to distinguish between the busses in xd_remove_watch. */
if (!dbus_connection_set_watch_functions (connection,
xd_add_watch,
xd_remove_watch,
- NULL, (void*) XHASH (bus), NULL))
+ xd_toggle_watch,
+ (void*) XHASH (bus), NULL))
XD_SIGNAL1 (build_string ("Cannot add watch functions"));
+ /* Add bus to list of registered buses. */
+ Vdbus_registered_buses = Fcons (bus, Vdbus_registered_buses);
+
/* We do not want to abort. */
putenv ("DBUS_FATAL_WARNINGS=0");
return Qnil;
}
+DEFUN ("dbus-close-bus", Fdbus_close_bus, Sdbus_close_bus, 1, 1, 0,
+ doc: /* Close connection to D-Bus BUS. */)
+ (Lisp_Object bus)
+{
+ DBusConnection *connection;
+
+ /* Open a connection to the bus. */
+ connection = xd_initialize (bus, TRUE);
+
+ /* Decrement reference count to the bus. */
+ dbus_connection_unref (connection);
+
+ /* Remove bus from list of registered buses. */
+ Vdbus_registered_buses = Fdelete (bus, Vdbus_registered_buses);
+
+ /* Return. */
+ return Qnil;
+}
+
DEFUN ("dbus-get-unique-name", Fdbus_get_unique_name, Sdbus_get_unique_name,
1, 1, 0,
doc: /* Return the unique name of Emacs registered at D-Bus BUS. */)
- (bus)
- Lisp_Object bus;
+ (Lisp_Object bus)
{
DBusConnection *connection;
const char *name;
- /* Check parameters. */
- CHECK_SYMBOL (bus);
-
/* Open a connection to the bus. */
- connection = xd_initialize (bus);
+ connection = xd_initialize (bus, TRUE);
/* Request the name. */
name = dbus_bus_get_unique_name (connection);
DEFUN ("dbus-call-method", Fdbus_call_method, Sdbus_call_method, 5, MANY, 0,
doc: /* Call METHOD on the D-Bus BUS.
-BUS is either the symbol `:system' or the symbol `:session'.
+BUS is either a Lisp symbol, `:system' or `:session', or a string
+denoting the bus address.
SERVICE is the D-Bus service name to be used. PATH is the D-Bus
object path SERVICE is registered at. INTERFACE is an interface
=> "i686"
usage: (dbus-call-method BUS SERVICE PATH INTERFACE METHOD &optional :timeout TIMEOUT &rest ARGS) */)
- (nargs, args)
- int nargs;
- register Lisp_Object *args;
+ (int nargs, register Lisp_Object *args)
{
Lisp_Object bus, service, path, interface, method;
Lisp_Object result;
interface = args[3];
method = args[4];
- CHECK_SYMBOL (bus);
CHECK_STRING (service);
CHECK_STRING (path);
CHECK_STRING (interface);
SDATA (method));
/* Open a connection to the bus. */
- connection = xd_initialize (bus);
+ connection = xd_initialize (bus, TRUE);
/* Create the message. */
dmessage = dbus_message_new_method_call (SDATA (service),
Sdbus_call_method_asynchronously, 6, MANY, 0,
doc: /* Call METHOD on the D-Bus BUS asynchronously.
-BUS is either the symbol `:system' or the symbol `:session'.
+BUS is either a Lisp symbol, `:system' or `:session', or a string
+denoting the bus address.
SERVICE is the D-Bus service name to be used. PATH is the D-Bus
object path SERVICE is registered at. INTERFACE is an interface
-| i686
usage: (dbus-call-method-asynchronously BUS SERVICE PATH INTERFACE METHOD HANDLER &optional :timeout TIMEOUT &rest ARGS) */)
- (nargs, args)
- int nargs;
- register Lisp_Object *args;
+ (int nargs, register Lisp_Object *args)
{
Lisp_Object bus, service, path, interface, method, handler;
Lisp_Object result;
method = args[4];
handler = args[5];
- CHECK_SYMBOL (bus);
CHECK_STRING (service);
CHECK_STRING (path);
CHECK_STRING (interface);
SDATA (method));
/* Open a connection to the bus. */
- connection = xd_initialize (bus);
+ connection = xd_initialize (bus, TRUE);
/* Create the message. */
dmessage = dbus_message_new_method_call (SDATA (service),
result = Qnil;
}
- /* Flush connection to ensure the message is handled. */
- dbus_connection_flush (connection);
-
XD_DEBUG_MESSAGE ("Message sent");
/* Cleanup. */
This is an internal function, it shall not be used outside dbus.el.
usage: (dbus-method-return-internal BUS SERIAL SERVICE &rest ARGS) */)
- (nargs, args)
- int nargs;
- register Lisp_Object *args;
+ (int nargs, register Lisp_Object *args)
{
Lisp_Object bus, serial, service;
struct gcpro gcpro1, gcpro2, gcpro3;
serial = args[1];
service = args[2];
- CHECK_SYMBOL (bus);
CHECK_NUMBER (serial);
CHECK_STRING (service);
GCPRO3 (bus, serial, service);
XD_DEBUG_MESSAGE ("%lu %s ", (unsigned long) XUINT (serial), SDATA (service));
/* Open a connection to the bus. */
- connection = xd_initialize (bus);
+ connection = xd_initialize (bus, TRUE);
/* Create the message. */
dmessage = dbus_message_new (DBUS_MESSAGE_TYPE_METHOD_RETURN);
if (!dbus_connection_send (connection, dmessage, NULL))
XD_SIGNAL1 (build_string ("Cannot send message"));
- /* Flush connection to ensure the message is handled. */
- dbus_connection_flush (connection);
-
XD_DEBUG_MESSAGE ("Message sent");
/* Cleanup. */
This is an internal function, it shall not be used outside dbus.el.
usage: (dbus-method-error-internal BUS SERIAL SERVICE &rest ARGS) */)
- (nargs, args)
- int nargs;
- register Lisp_Object *args;
+ (int nargs, register Lisp_Object *args)
{
Lisp_Object bus, serial, service;
struct gcpro gcpro1, gcpro2, gcpro3;
serial = args[1];
service = args[2];
- CHECK_SYMBOL (bus);
CHECK_NUMBER (serial);
CHECK_STRING (service);
GCPRO3 (bus, serial, service);
XD_DEBUG_MESSAGE ("%lu %s ", (unsigned long) XUINT (serial), SDATA (service));
/* Open a connection to the bus. */
- connection = xd_initialize (bus);
+ connection = xd_initialize (bus, TRUE);
/* Create the message. */
dmessage = dbus_message_new (DBUS_MESSAGE_TYPE_ERROR);
if (!dbus_connection_send (connection, dmessage, NULL))
XD_SIGNAL1 (build_string ("Cannot send message"));
- /* Flush connection to ensure the message is handled. */
- dbus_connection_flush (connection);
-
XD_DEBUG_MESSAGE ("Message sent");
/* Cleanup. */
DEFUN ("dbus-send-signal", Fdbus_send_signal, Sdbus_send_signal, 5, MANY, 0,
doc: /* Send signal SIGNAL on the D-Bus BUS.
-BUS is either the symbol `:system' or the symbol `:session'.
+BUS is either a Lisp symbol, `:system' or `:session', or a string
+denoting the bus address.
SERVICE is the D-Bus service name SIGNAL is sent from. PATH is the
D-Bus object path SERVICE is registered at. INTERFACE is an interface
"org.gnu.Emacs.FileManager" "FileModified" "/home/albinus/.emacs")
usage: (dbus-send-signal BUS SERVICE PATH INTERFACE SIGNAL &rest ARGS) */)
- (nargs, args)
- int nargs;
- register Lisp_Object *args;
+ (int nargs, register Lisp_Object *args)
{
Lisp_Object bus, service, path, interface, signal;
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
interface = args[3];
signal = args[4];
- CHECK_SYMBOL (bus);
CHECK_STRING (service);
CHECK_STRING (path);
CHECK_STRING (interface);
SDATA (signal));
/* Open a connection to the bus. */
- connection = xd_initialize (bus);
+ connection = xd_initialize (bus, TRUE);
/* Create the message. */
dmessage = dbus_message_new_signal (SDATA (path),
if (!dbus_connection_send (connection, dmessage, NULL))
XD_SIGNAL1 (build_string ("Cannot send message"));
- /* Flush connection to ensure the message is handled. */
- dbus_connection_flush (connection);
-
XD_DEBUG_MESSAGE ("Signal sent");
/* Cleanup. */
return Qt;
}
-/* Check, whether there is pending input in the message queue of the
- D-Bus BUS. BUS is a Lisp symbol, either :system or :session. */
-int
-xd_get_dispatch_status (bus)
- Lisp_Object bus;
-{
- DBusConnection *connection;
-
- /* Open a connection to the bus. */
- connection = xd_initialize (bus);
-
- /* Non blocking read of the next available message. */
- dbus_connection_read_write (connection, 0);
-
- /* Return. */
- return
- (dbus_connection_get_dispatch_status (connection)
- == DBUS_DISPATCH_DATA_REMAINS)
- ? TRUE : FALSE;
-}
-
-/* Check for queued incoming messages from the system and session buses. */
-int
-xd_pending_messages ()
-{
-
- /* Vdbus_registered_objects_table will be initialized as hash table
- in dbus.el. When this package isn't loaded yet, it doesn't make
- sense to handle D-Bus messages. */
- return (HASH_TABLE_P (Vdbus_registered_objects_table)
- ? (xd_get_dispatch_status (QCdbus_system_bus)
- || ((getenv ("DBUS_SESSION_BUS_ADDRESS") != NULL)
- ? xd_get_dispatch_status (QCdbus_session_bus)
- : FALSE))
- : FALSE);
-}
-
-/* Read queued incoming message of the D-Bus BUS. BUS is a Lisp
- symbol, either :system or :session. */
-static Lisp_Object
-xd_read_message (bus)
- Lisp_Object bus;
+/* Read one queued incoming message of the D-Bus BUS.
+ BUS is either a Lisp symbol, :system or :session, or a string denoting
+ the bus address. */
+static void
+xd_read_message_1 (DBusConnection *connection, Lisp_Object bus)
{
Lisp_Object args, key, value;
struct gcpro gcpro1;
struct input_event event;
- DBusConnection *connection;
DBusMessage *dmessage;
DBusMessageIter iter;
unsigned int dtype;
int mtype, serial;
const char *uname, *path, *interface, *member;
- /* Open a connection to the bus. */
- connection = xd_initialize (bus);
-
- /* Non blocking read of the next available message. */
- dbus_connection_read_write (connection, 0);
dmessage = dbus_connection_pop_message (connection);
/* Return if there is no queued message. */
if (dmessage == NULL)
- return Qnil;
+ return;
/* Collect the parameters. */
args = Qnil;
cleanup:
dbus_message_unref (dmessage);
- RETURN_UNGCPRO (Qnil);
+ UNGCPRO;
}
-/* Read queued incoming messages from the system and session buses. */
-void
-xd_read_queued_messages ()
+/* Read queued incoming messages of the D-Bus BUS.
+ BUS is either a Lisp symbol, :system or :session, or a string denoting
+ the bus address. */
+static Lisp_Object
+xd_read_message (Lisp_Object bus)
{
+ /* Open a connection to the bus. */
+ DBusConnection *connection = xd_initialize (bus, TRUE);
- /* Vdbus_registered_objects_table will be initialized as hash table
- in dbus.el. When this package isn't loaded yet, it doesn't make
- sense to handle D-Bus messages. Furthermore, we ignore all Lisp
- errors during the call. */
- if (HASH_TABLE_P (Vdbus_registered_objects_table))
- {
- xd_in_read_queued_messages = 1;
- internal_catch (Qdbus_error, xd_read_message, QCdbus_system_bus);
- internal_catch (Qdbus_error, xd_read_message, QCdbus_session_bus);
- xd_in_read_queued_messages = 0;
- }
+ /* Non blocking read of the next available message. */
+ dbus_connection_read_write (connection, 0);
+
+ while (dbus_connection_get_dispatch_status (connection)
+ != DBUS_DISPATCH_COMPLETE)
+ xd_read_message_1 (connection, bus);
+ return Qnil;
+}
+
+/* Callback called when something is ready to read or write. */
+static void
+xd_read_queued_messages (int fd, void *data, int for_read)
+{
+ Lisp_Object busp = Vdbus_registered_buses;
+ Lisp_Object bus = Qnil;
+
+ /* Find bus related to fd. */
+ if (data != NULL)
+ while (!NILP (busp))
+ {
+ if (data == (void*) XHASH (CAR_SAFE (busp)))
+ bus = CAR_SAFE (busp);
+ busp = CDR_SAFE (busp);
+ }
+
+ if (NILP(bus))
+ return;
+
+ /* We ignore all Lisp errors during the call. */
+ xd_in_read_queued_messages = 1;
+ internal_catch (Qdbus_error, xd_read_message, bus);
+ xd_in_read_queued_messages = 0;
}
DEFUN ("dbus-register-signal", Fdbus_register_signal, Sdbus_register_signal,
6, MANY, 0,
doc: /* Register for signal SIGNAL on the D-Bus BUS.
-BUS is either the symbol `:system' or the symbol `:session'.
+BUS is either a Lisp symbol, `:system' or `:session', or a string
+denoting the bus address.
SERVICE is the D-Bus service name used by the sending D-Bus object.
It can be either a known name or the unique name of the D-Bus object
`dbus-unregister-object' for removing the registration.
usage: (dbus-register-signal BUS SERVICE PATH INTERFACE SIGNAL HANDLER &rest ARGS) */)
- (nargs, args)
- int nargs;
- register Lisp_Object *args;
+ (int nargs, register Lisp_Object *args)
{
Lisp_Object bus, service, path, interface, signal, handler;
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6;
signal = args[4];
handler = args[5];
- CHECK_SYMBOL (bus);
if (!NILP (service)) CHECK_STRING (service);
if (!NILP (path)) CHECK_STRING (path);
CHECK_STRING (interface);
if (NILP (uname) || (SBYTES (uname) > 0))
{
/* Open a connection to the bus. */
- connection = xd_initialize (bus);
+ connection = xd_initialize (bus, TRUE);
/* Create a rule to receive related signals. */
sprintf (rule,
6, 6, 0,
doc: /* Register for method METHOD on the D-Bus BUS.
-BUS is either the symbol `:system' or the symbol `:session'.
+BUS is either a Lisp symbol, `:system' or `:session', or a string
+denoting the bus address.
SERVICE is the D-Bus service name of the D-Bus object METHOD is
registered for. It must be a known name.
Lisp function to be called when a method call is received. It must
accept the input arguments of METHOD. The return value of HANDLER is
used for composing the returning D-Bus message. */)
- (bus, service, path, interface, method, handler)
- Lisp_Object bus, service, path, interface, method, handler;
+ (Lisp_Object bus, Lisp_Object service, Lisp_Object path, Lisp_Object interface, Lisp_Object method, Lisp_Object handler)
{
Lisp_Object key, key1, value;
DBusConnection *connection;
DBusError derror;
/* Check parameters. */
- CHECK_SYMBOL (bus);
CHECK_STRING (service);
CHECK_STRING (path);
CHECK_STRING (interface);
a segmentation fault. */
/* Open a connection to the bus. */
- connection = xd_initialize (bus);
+ connection = xd_initialize (bus, TRUE);
/* Request the known name from the bus. We can ignore the result,
it is set to -1 if there is an error - kind of redundancy. */
\f
void
-syms_of_dbusbind ()
+syms_of_dbusbind (void)
{
Qdbus_init_bus = intern_c_string ("dbus-init-bus");
staticpro (&Qdbus_init_bus);
defsubr (&Sdbus_init_bus);
+ Qdbus_close_bus = intern_c_string ("dbus-close-bus");
+ staticpro (&Qdbus_close_bus);
+ defsubr (&Sdbus_close_bus);
+
Qdbus_get_unique_name = intern_c_string ("dbus-get-unique-name");
staticpro (&Qdbus_get_unique_name);
defsubr (&Sdbus_get_unique_name);
QCdbus_type_dict_entry = intern_c_string (":dict-entry");
staticpro (&QCdbus_type_dict_entry);
+ DEFVAR_LISP ("dbus-registered-buses",
+ &Vdbus_registered_buses,
+ doc: /* List of D-Bus buses we are polling for messages. */);
+ Vdbus_registered_buses = Qnil;
+
DEFVAR_LISP ("dbus-registered-objects-table",
&Vdbus_registered_objects_table,
doc: /* Hash table of registered functions for D-Bus.
+
There are two different uses of the hash table: for accessing
registered interfaces properties, targeted by signals or method calls,
and for calling handlers in case of non-blocking method call returns.
In the first case, the key in the hash table is the list (BUS
-INTERFACE MEMBER). BUS is either the symbol `:system' or the symbol
-`:session'. INTERFACE is a string which denotes a D-Bus interface,
-and MEMBER, also a string, is either a method, a signal or a property
-INTERFACE is offering. All arguments but BUS must not be nil.
+INTERFACE MEMBER). BUS is either a Lisp symbol, `:system' or
+`:session', or a string denoting the bus address. INTERFACE is a
+string which denotes a D-Bus interface, and MEMBER, also a string, is
+either a method, a signal or a property INTERFACE is offering. All
+arguments but BUS must not be nil.
The value in the hash table is a list of quadruple lists
\((UNAME SERVICE PATH OBJECT) (UNAME SERVICE PATH OBJECT) ...).
arrives (methods and signals), or a cons cell containing the value of
the property.
-In the second case, the key in the hash table is the list (BUS SERIAL).
-BUS is either the symbol `:system' or the symbol `:session'. SERIAL
-is the serial number of the non-blocking method call, a reply is
-expected. Both arguments must not be nil. The value in the hash
-table is HANDLER, the function to be called when the D-Bus reply
-message arrives. */);
- /* We initialize Vdbus_registered_objects_table in dbus.el, because
- we need to define a hash table function first. */
- Vdbus_registered_objects_table = Qnil;
+In the second case, the key in the hash table is the list (BUS
+SERIAL). BUS is either a Lisp symbol, `:system' or `:session', or a
+string denoting the bus address. SERIAL is the serial number of the
+non-blocking method call, a reply is expected. Both arguments must
+not be nil. The value in the hash table is HANDLER, the function to
+be called when the D-Bus reply message arrives. */);
+ {
+ Lisp_Object args[2];
+ args[0] = QCtest;
+ args[1] = Qequal;
+ Vdbus_registered_objects_table = Fmake_hash_table (2, args);
+ }
DEFVAR_LISP ("dbus-debug", &Vdbus_debug,
doc: /* If non-nil, debug messages of D-Bus bindings are raised. */);