/* Elisp bindings for D-Bus.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007, 2008 Free Software Foundation, Inc.
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs 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 3, or (at your option)
-any later version.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include "config.h"
/* Subroutines. */
Lisp_Object Qdbus_get_unique_name;
Lisp_Object Qdbus_call_method;
+Lisp_Object Qdbus_call_method_asynchronously;
+Lisp_Object Qdbus_method_return_internal;
+Lisp_Object Qdbus_method_error_internal;
Lisp_Object Qdbus_send_signal;
Lisp_Object Qdbus_register_signal;
Lisp_Object Qdbus_register_method;
-Lisp_Object Qdbus_unregister_object;
/* D-Bus error symbol. */
Lisp_Object Qdbus_error;
/* Lisp symbols of the system and session buses. */
Lisp_Object QCdbus_system_bus, QCdbus_session_bus;
+/* Lisp symbol for method call timeout. */
+Lisp_Object QCdbus_timeout;
+
/* Lisp symbols of D-Bus types. */
Lisp_Object QCdbus_type_byte, QCdbus_type_boolean;
Lisp_Object QCdbus_type_int16, QCdbus_type_uint16;
#define XD_ERROR(error) \
do { \
char s[1024]; \
- strcpy (s, error.message); \
+ strncpy (s, error.message, 1023); \
dbus_error_free (&error); \
/* Remove the trailing newline. */ \
if (strchr (s, '\n') != NULL) \
#define XD_DEBUG_MESSAGE(...) \
do { \
char s[1024]; \
- sprintf (s, __VA_ARGS__); \
+ snprintf (s, 1023, __VA_ARGS__); \
printf ("%s: %s\n", __func__, s); \
message ("%s: %s", __func__, s); \
} while (0)
if (!NILP (Vdbus_debug)) \
{ \
char s[1024]; \
- sprintf (s, __VA_ARGS__); \
+ snprintf (s, 1023, __VA_ARGS__); \
message ("%s: %s", __func__, s); \
- }
+ } \
} while (0)
#define XD_DEBUG_VALID_LISP_OBJECT_P(object)
#endif
: (FLOATP (object)) ? DBUS_TYPE_DOUBLE \
: (STRINGP (object)) ? DBUS_TYPE_STRING \
: (XD_DBUS_TYPE_P (object)) ? XD_SYMBOL_TO_DBUS_TYPE (object) \
- : (CONSP (object)) ? ((XD_DBUS_TYPE_P (XCAR (object))) \
- ? XD_SYMBOL_TO_DBUS_TYPE (XCAR (object)) \
+ : (CONSP (object)) ? ((XD_DBUS_TYPE_P (CAR_SAFE (object))) \
+ ? XD_SYMBOL_TO_DBUS_TYPE (CAR_SAFE (object)) \
: DBUS_TYPE_ARRAY) \
: DBUS_TYPE_INVALID)
/* Return a list pointer which does not have a Lisp symbol as car. */
-#define XD_NEXT_VALUE(object) \
- ((XD_DBUS_TYPE_P (XCAR (object))) ? XCDR (object) : object)
+#define XD_NEXT_VALUE(object) \
+ ((XD_DBUS_TYPE_P (CAR_SAFE (object))) ? CDR_SAFE (object) : object)
/* Compute SIGNATURE of OBJECT. It must have a form that it can be
used in dbus_message_iter_open_container. DTYPE is the DBusType
signature is embedded, or DBUS_TYPE_INVALID. It is needed for the
check that DBUS_TYPE_DICT_ENTRY occurs only as array element. */
void
-xd_signature(signature, dtype, parent_type, object)
+xd_signature (signature, dtype, parent_type, object)
char *signature;
unsigned int dtype, parent_type;
Lisp_Object object;
the whole element's signature. */
CHECK_CONS (object);
- if (EQ (QCdbus_type_array, XCAR (elt))) /* Type symbol is optional. */
+ /* Type symbol is optional. */
+ if (EQ (QCdbus_type_array, CAR_SAFE (elt)))
elt = XD_NEXT_VALUE (elt);
- subtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (elt));
- xd_signature (x, subtype, dtype, XCAR (XD_NEXT_VALUE (elt)));
+
+ /* If the array is empty, DBUS_TYPE_STRING is the default
+ element type. */
+ if (NILP (elt))
+ {
+ subtype = DBUS_TYPE_STRING;
+ strcpy (x, DBUS_TYPE_STRING_AS_STRING);
+ }
+ else
+ {
+ subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt));
+ xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt)));
+ }
+
+ /* If the element type is DBUS_TYPE_SIGNATURE, and this is the
+ only element, the value of this element is used as he array's
+ element signature. */
+ if ((subtype == DBUS_TYPE_SIGNATURE)
+ && STRINGP (CAR_SAFE (XD_NEXT_VALUE (elt)))
+ && NILP (CDR_SAFE (XD_NEXT_VALUE (elt))))
+ strcpy (x, SDATA (CAR_SAFE (XD_NEXT_VALUE (elt))));
while (!NILP (elt))
{
- if (subtype != XD_OBJECT_TO_DBUS_TYPE (XCAR (elt)))
- wrong_type_argument (intern ("D-Bus"), XCAR (elt));
- elt = XCDR (XD_NEXT_VALUE (elt));
+ if (subtype != XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)))
+ wrong_type_argument (intern ("D-Bus"), CAR_SAFE (elt));
+ elt = CDR_SAFE (XD_NEXT_VALUE (elt));
}
sprintf (signature, "%c%s", dtype, x);
CHECK_CONS (object);
elt = XD_NEXT_VALUE (elt);
- subtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (elt));
- xd_signature (x, subtype, dtype, XCAR (XD_NEXT_VALUE (elt)));
+ subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt));
+ xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt)));
- if (!NILP (XCDR (XD_NEXT_VALUE (elt))))
+ if (!NILP (CDR_SAFE (XD_NEXT_VALUE (elt))))
wrong_type_argument (intern ("D-Bus"),
- XCAR (XCDR (XD_NEXT_VALUE (elt))));
+ CAR_SAFE (CDR_SAFE (XD_NEXT_VALUE (elt))));
- sprintf (signature, "%c%s", dtype, x);
+ sprintf (signature, "%c", dtype);
break;
case DBUS_TYPE_STRUCT:
sprintf (signature, "%c", DBUS_STRUCT_BEGIN_CHAR );
while (!NILP (elt))
{
- subtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (elt));
- xd_signature (x, subtype, dtype, XCAR (XD_NEXT_VALUE (elt)));
+ subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt));
+ xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt)));
strcat (signature, x);
- elt = XCDR (XD_NEXT_VALUE (elt));
+ elt = CDR_SAFE (XD_NEXT_VALUE (elt));
}
- sprintf (signature, "%s%c", signature, DBUS_STRUCT_END_CHAR);
+ strcat (signature, DBUS_STRUCT_END_CHAR_AS_STRING);
break;
case DBUS_TYPE_DICT_ENTRY:
/* First element. */
elt = XD_NEXT_VALUE (elt);
- subtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (elt));
- xd_signature (x, subtype, dtype, XCAR (XD_NEXT_VALUE (elt)));
+ subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt));
+ xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt)));
strcat (signature, x);
if (!XD_BASIC_DBUS_TYPE (subtype))
- wrong_type_argument (intern ("D-Bus"), XCAR (XD_NEXT_VALUE (elt)));
+ wrong_type_argument (intern ("D-Bus"), CAR_SAFE (XD_NEXT_VALUE (elt)));
/* Second element. */
- elt = XCDR (XD_NEXT_VALUE (elt));
- subtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (elt));
- xd_signature (x, subtype, dtype, XCAR (XD_NEXT_VALUE (elt)));
+ elt = CDR_SAFE (XD_NEXT_VALUE (elt));
+ subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt));
+ xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt)));
strcat (signature, x);
- if (!NILP (XCDR (XD_NEXT_VALUE (elt))))
+ if (!NILP (CDR_SAFE (XD_NEXT_VALUE (elt))))
wrong_type_argument (intern ("D-Bus"),
- XCAR (XCDR (XD_NEXT_VALUE (elt))));
+ CAR_SAFE (CDR_SAFE (XD_NEXT_VALUE (elt))));
/* Closing signature. */
- sprintf (signature, "%s%c", signature, DBUS_DICT_ENTRY_END_CHAR);
+ strcat (signature, DBUS_DICT_ENTRY_END_CHAR_AS_STRING);
break;
default:
{
case DBUS_TYPE_BYTE:
{
- unsigned int val = XUINT (object) & 0xFF;
+ unsigned char val = XUINT (object) & 0xFF;
XD_DEBUG_MESSAGE ("%c %d", dtype, val);
if (!dbus_message_iter_append_basic (iter, dtype, &val))
xsignal2 (Qdbus_error,
case DBUS_TYPE_OBJECT_PATH:
case DBUS_TYPE_SIGNATURE:
{
- char *val = SDATA (object);
+ char *val = SDATA (Fstring_make_unibyte (object));
XD_DEBUG_MESSAGE ("%c %s", dtype, val);
if (!dbus_message_iter_append_basic (iter, dtype, &val))
xsignal2 (Qdbus_error,
/* All compound types except array have a type symbol. For
array, it is optional. Skip it. */
- if (!XD_BASIC_DBUS_TYPE (XD_OBJECT_TO_DBUS_TYPE (XCAR (object))))
+ if (!XD_BASIC_DBUS_TYPE (XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object))))
object = XD_NEXT_VALUE (object);
/* Open new subiteration. */
switch (dtype)
{
case DBUS_TYPE_ARRAY:
+ /* An array has only elements of the same type. So it is
+ sufficient to check the first element's signature
+ only. */
+
+ if (NILP (object))
+ /* If the array is empty, DBUS_TYPE_STRING is the default
+ element type. */
+ strcpy (signature, DBUS_TYPE_STRING_AS_STRING);
+
+ else
+ /* If the element type is DBUS_TYPE_SIGNATURE, and this is
+ the only element, the value of this element is used as
+ the array's element signature. */
+ if ((XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object))
+ == DBUS_TYPE_SIGNATURE)
+ && STRINGP (CAR_SAFE (XD_NEXT_VALUE (object)))
+ && NILP (CDR_SAFE (XD_NEXT_VALUE (object))))
+ {
+ strcpy (signature, SDATA (CAR_SAFE (XD_NEXT_VALUE (object))));
+ object = CDR_SAFE (XD_NEXT_VALUE (object));
+ }
+
+ else
+ xd_signature (signature,
+ XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)),
+ dtype, CAR_SAFE (XD_NEXT_VALUE (object)));
+
+ XD_DEBUG_MESSAGE ("%c %s %s", dtype, signature,
+ SDATA (format2 ("%s", object, Qnil)));
+ if (!dbus_message_iter_open_container (iter, dtype,
+ signature, &subiter))
+ xsignal3 (Qdbus_error,
+ build_string ("Cannot open container"),
+ make_number (dtype), build_string (signature));
+ break;
+
case DBUS_TYPE_VARIANT:
- /* A variant has just one element. An array has elements of
- the same type. Both have been checked already for
- correct types, it is sufficient to retrieve just the
- signature of the first element. */
- xd_signature (signature, XD_OBJECT_TO_DBUS_TYPE (XCAR (object)),
- dtype, XCAR (XD_NEXT_VALUE (object)));
+ /* A variant has just one element. */
+ xd_signature (signature, XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)),
+ dtype, CAR_SAFE (XD_NEXT_VALUE (object)));
+
XD_DEBUG_MESSAGE ("%c %s %s", dtype, signature,
SDATA (format2 ("%s", object, Qnil)));
if (!dbus_message_iter_open_container (iter, dtype,
/* Loop over list elements. */
while (!NILP (object))
{
- dtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (object));
+ dtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object));
object = XD_NEXT_VALUE (object);
- xd_append_arg (dtype, XCAR (object), &subiter);
+ xd_append_arg (dtype, CAR_SAFE (object), &subiter);
- object = XCDR (object);
+ object = CDR_SAFE (object);
}
/* Close the subiteration. */
case DBUS_TYPE_INT32:
case DBUS_TYPE_UINT32:
{
+ /* Assignment to EMACS_INT stops GCC whining about limited
+ range of data type. */
dbus_uint32_t val;
+ EMACS_INT val1;
dbus_message_iter_get_basic (iter, &val);
XD_DEBUG_MESSAGE ("%c %d", dtype, val);
- return make_fixnum_or_float (val);
+ val1 = val;
+ return make_fixnum_or_float (val1);
}
case DBUS_TYPE_INT64:
result = Fcons (xd_retrieve_arg (subtype, &subiter), result);
dbus_message_iter_next (&subiter);
}
+ XD_DEBUG_MESSAGE ("%c %s", dtype, SDATA (format2 ("%s", result, Qnil)));
RETURN_UNGCPRO (Fnreverse (result));
}
}
}
-
/* Initialize D-Bus connection. BUS is a Lisp symbol, either :system
or :session. It tells which D-Bus to be initialized. */
DBusConnection *
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 as string. */)
+ doc: /* Return the unique name of Emacs registered at D-Bus BUS. */)
(bus)
Lisp_Object bus;
{
DBusConnection *connection;
- char name[DBUS_MAXIMUM_NAME_LENGTH];
+ const char *name;
/* Check parameters. */
CHECK_SYMBOL (bus);
connection = xd_initialize (bus);
/* Request the name. */
- strcpy (name, dbus_bus_get_unique_name (connection));
+ name = dbus_bus_get_unique_name (connection);
if (name == NULL)
xsignal1 (Qdbus_error, build_string ("No unique name available"));
object path SERVICE is registered at. INTERFACE is an interface
offered by SERVICE. It must provide METHOD.
+If the parameter `:timeout' is given, the following integer TIMEOUT
+specifies the maximun number of milliseconds the method call must
+return. The default value is 25.000. If the method call doesn't
+return in time, a D-Bus error is raised.
+
All other arguments ARGS are passed to METHOD as arguments. They are
converted into D-Bus types via the following rules:
=> "i686"
-usage: (dbus-call-method BUS SERVICE PATH INTERFACE METHOD &rest ARGS) */)
+usage: (dbus-call-method
+ BUS SERVICE PATH INTERFACE METHOD
+ &optional :timeout TIMEOUT &rest ARGS) */)
(nargs, args)
int nargs;
register Lisp_Object *args;
DBusMessageIter iter;
DBusError derror;
unsigned int dtype;
- int i;
+ int timeout = -1;
+ int i = 5;
char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH];
/* Check parameters. */
connection = xd_initialize (bus);
/* Create the message. */
- dmessage = dbus_message_new_method_call ((char *) SDATA (service),
- (char *) SDATA (path),
- (char *) SDATA (interface),
- (char *) SDATA (method));
+ dmessage = dbus_message_new_method_call (SDATA (service),
+ SDATA (path),
+ SDATA (interface),
+ SDATA (method));
+ UNGCPRO;
if (dmessage == NULL)
+ xsignal1 (Qdbus_error, build_string ("Unable to create a new message"));
+
+ /* Check for timeout parameter. */
+ if ((i+2 <= nargs) && (EQ ((args[i]), QCdbus_timeout)))
{
- UNGCPRO;
- xsignal1 (Qdbus_error, build_string ("Unable to create a new message"));
+ CHECK_NATNUM (args[i+1]);
+ timeout = XUINT (args[i+1]);
+ i = i+2;
}
- UNGCPRO;
-
/* Initialize parameter list of message. */
dbus_message_iter_init_append (dmessage, &iter);
/* Append parameters to the message. */
- for (i = 5; i < nargs; ++i)
+ for (; i < nargs; ++i)
{
-
- XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
- XD_DEBUG_MESSAGE ("Parameter%d %s",
- i-4, SDATA (format2 ("%s", args[i], Qnil)));
-
dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]);
if (XD_DBUS_TYPE_P (args[i]))
- ++i;
+ {
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]);
+ XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4,
+ SDATA (format2 ("%s", args[i], Qnil)),
+ SDATA (format2 ("%s", args[i+1], Qnil)));
+ ++i;
+ }
+ else
+ {
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
+ XD_DEBUG_MESSAGE ("Parameter%d %s", i-4,
+ SDATA (format2 ("%s", args[i], Qnil)));
+ }
- /* Check for valid signature. We use DBUS_TYPE_INVALID is
+ /* Check for valid signature. We use DBUS_TYPE_INVALID as
indication that there is no parent type. */
xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]);
dbus_error_init (&derror);
reply = dbus_connection_send_with_reply_and_block (connection,
dmessage,
- -1,
+ timeout,
&derror);
if (dbus_error_is_set (&derror))
result = Qnil;
GCPRO1 (result);
- if (!dbus_message_iter_init (reply, &iter))
+ if (dbus_message_iter_init (reply, &iter))
{
- UNGCPRO;
- xsignal1 (Qdbus_error, build_string ("Cannot read reply"));
+ /* Loop over the parameters of the D-Bus reply message. Construct a
+ Lisp list, which is returned by `dbus-call-method'. */
+ while ((dtype = dbus_message_iter_get_arg_type (&iter))
+ != DBUS_TYPE_INVALID)
+ {
+ result = Fcons (xd_retrieve_arg (dtype, &iter), result);
+ dbus_message_iter_next (&iter);
+ }
}
-
- /* Loop over the parameters of the D-Bus reply message. Construct a
- Lisp list, which is returned by `dbus-call-method'. */
- while ((dtype = dbus_message_iter_get_arg_type (&iter)) != DBUS_TYPE_INVALID)
+ else
{
- result = Fcons (xd_retrieve_arg (dtype, &iter), result);
- dbus_message_iter_next (&iter);
+ /* No arguments: just return nil. */
}
/* Cleanup. */
/* Return the result. If there is only one single Lisp object,
return it as-it-is, otherwise return the reversed list. */
if (XUINT (Flength (result)) == 1)
- RETURN_UNGCPRO (XCAR (result));
+ RETURN_UNGCPRO (CAR_SAFE (result));
else
RETURN_UNGCPRO (Fnreverse (result));
}
+DEFUN ("dbus-call-method-asynchronously", Fdbus_call_method_asynchronously,
+ 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'.
+
+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
+offered by SERVICE. It must provide METHOD.
+
+HANDLER is a Lisp function, which is called when the corresponding
+return message has arrived.
+
+If the parameter `:timeout' is given, the following integer TIMEOUT
+specifies the maximun number of milliseconds the method call must
+return. The default value is 25.000. If the method call doesn't
+return in time, a D-Bus error is raised.
+
+All other arguments ARGS are passed to METHOD as arguments. They are
+converted into D-Bus types via the following rules:
+
+ t and nil => DBUS_TYPE_BOOLEAN
+ number => DBUS_TYPE_UINT32
+ integer => DBUS_TYPE_INT32
+ float => DBUS_TYPE_DOUBLE
+ string => DBUS_TYPE_STRING
+ list => DBUS_TYPE_ARRAY
+
+All arguments can be preceded by a type symbol. For details about
+type symbols, see Info node `(dbus)Type Conversion'.
+
+The function returns a key into the hash table
+`dbus-registered-functions-table'. The corresponding entry in the
+hash table is removed, when the return message has been arrived, and
+HANDLER is called.
+
+Example:
+
+\(dbus-call-method-asynchronously
+ :system "org.freedesktop.Hal" "/org/freedesktop/Hal/devices/computer"
+ "org.freedesktop.Hal.Device" "GetPropertyString" 'message
+ "system.kernel.machine")
+
+ => (:system 2)
+
+ -| 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;
+{
+ Lisp_Object bus, service, path, interface, method, handler;
+ Lisp_Object result;
+ struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6;
+ DBusConnection *connection;
+ DBusMessage *dmessage;
+ DBusMessageIter iter;
+ unsigned int dtype;
+ int timeout = -1;
+ int i = 6;
+ char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH];
+
+ /* Check parameters. */
+ bus = args[0];
+ service = args[1];
+ path = args[2];
+ interface = args[3];
+ method = args[4];
+ handler = args[5];
+
+ CHECK_SYMBOL (bus);
+ CHECK_STRING (service);
+ CHECK_STRING (path);
+ CHECK_STRING (interface);
+ CHECK_STRING (method);
+ if (!FUNCTIONP (handler))
+ wrong_type_argument (intern ("functionp"), handler);
+ GCPRO6 (bus, service, path, interface, method, handler);
+
+ XD_DEBUG_MESSAGE ("%s %s %s %s",
+ SDATA (service),
+ SDATA (path),
+ SDATA (interface),
+ SDATA (method));
+
+ /* Open a connection to the bus. */
+ connection = xd_initialize (bus);
+
+ /* Create the message. */
+ dmessage = dbus_message_new_method_call (SDATA (service),
+ SDATA (path),
+ SDATA (interface),
+ SDATA (method));
+ if (dmessage == NULL)
+ xsignal1 (Qdbus_error, build_string ("Unable to create a new message"));
+
+ /* Check for timeout parameter. */
+ if ((i+2 <= nargs) && (EQ ((args[i]), QCdbus_timeout)))
+ {
+ CHECK_NATNUM (args[i+1]);
+ timeout = XUINT (args[i+1]);
+ i = i+2;
+ }
+
+ /* Initialize parameter list of message. */
+ dbus_message_iter_init_append (dmessage, &iter);
+
+ /* Append parameters to the message. */
+ for (; i < nargs; ++i)
+ {
+ dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]);
+ if (XD_DBUS_TYPE_P (args[i]))
+ {
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]);
+ XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4,
+ SDATA (format2 ("%s", args[i], Qnil)),
+ SDATA (format2 ("%s", args[i+1], Qnil)));
+ ++i;
+ }
+ else
+ {
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
+ XD_DEBUG_MESSAGE ("Parameter%d %s", i-4,
+ SDATA (format2 ("%s", args[i], Qnil)));
+ }
+
+ /* Check for valid signature. We use DBUS_TYPE_INVALID as
+ indication that there is no parent type. */
+ xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]);
+
+ xd_append_arg (dtype, args[i], &iter);
+ }
+
+ /* Send the message. The message is just added to the outgoing
+ message queue. */
+ if (!dbus_connection_send_with_reply (connection, dmessage, NULL, timeout))
+ xsignal1 (Qdbus_error, build_string ("Cannot send message"));
+
+ XD_DEBUG_MESSAGE ("Message sent");
+
+ /* The result is the key in Vdbus_registered_functions_table. */
+ result = (list2 (bus, make_number (dbus_message_get_serial (dmessage))));
+
+ /* Create a hash table entry. */
+ Fputhash (result, handler, Vdbus_registered_functions_table);
+
+ /* Cleanup. */
+ dbus_message_unref (dmessage);
+
+ /* Return the result. */
+ RETURN_UNGCPRO (result);
+}
+
+DEFUN ("dbus-method-return-internal", Fdbus_method_return_internal,
+ Sdbus_method_return_internal,
+ 3, MANY, 0,
+ doc: /* Return for message SERIAL on the D-Bus BUS.
+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;
+{
+ Lisp_Object bus, serial, service;
+ struct gcpro gcpro1, gcpro2, gcpro3;
+ DBusConnection *connection;
+ DBusMessage *dmessage;
+ DBusMessageIter iter;
+ unsigned int dtype;
+ int i;
+ char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH];
+
+ /* Check parameters. */
+ bus = args[0];
+ serial = args[1];
+ service = args[2];
+
+ CHECK_SYMBOL (bus);
+ CHECK_NUMBER (serial);
+ CHECK_STRING (service);
+ GCPRO3 (bus, serial, service);
+
+ XD_DEBUG_MESSAGE ("%d %s ", XUINT (serial), SDATA (service));
+
+ /* Open a connection to the bus. */
+ connection = xd_initialize (bus);
+
+ /* Create the message. */
+ dmessage = dbus_message_new (DBUS_MESSAGE_TYPE_METHOD_RETURN);
+ if ((dmessage == NULL)
+ || (!dbus_message_set_reply_serial (dmessage, XUINT (serial)))
+ || (!dbus_message_set_destination (dmessage, SDATA (service))))
+ {
+ UNGCPRO;
+ xsignal1 (Qdbus_error,
+ build_string ("Unable to create a return message"));
+ }
+
+ UNGCPRO;
+
+ /* Initialize parameter list of message. */
+ dbus_message_iter_init_append (dmessage, &iter);
+
+ /* Append parameters to the message. */
+ for (i = 3; i < nargs; ++i)
+ {
+ dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]);
+ if (XD_DBUS_TYPE_P (args[i]))
+ {
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]);
+ XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-2,
+ SDATA (format2 ("%s", args[i], Qnil)),
+ SDATA (format2 ("%s", args[i+1], Qnil)));
+ ++i;
+ }
+ else
+ {
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
+ XD_DEBUG_MESSAGE ("Parameter%d %s", i-2,
+ SDATA (format2 ("%s", args[i], Qnil)));
+ }
+
+ /* Check for valid signature. We use DBUS_TYPE_INVALID as
+ indication that there is no parent type. */
+ xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]);
+
+ xd_append_arg (dtype, args[i], &iter);
+ }
+
+ /* Send the message. The message is just added to the outgoing
+ message queue. */
+ if (!dbus_connection_send (connection, dmessage, NULL))
+ xsignal1 (Qdbus_error, build_string ("Cannot send message"));
+
+ /* Flush connection to ensure the message is handled. */
+ dbus_connection_flush (connection);
+
+ XD_DEBUG_MESSAGE ("Message sent");
+
+ /* Cleanup. */
+ dbus_message_unref (dmessage);
+
+ /* Return. */
+ return Qt;
+}
+
+DEFUN ("dbus-method-error-internal", Fdbus_method_error_internal,
+ Sdbus_method_error_internal,
+ 3, MANY, 0,
+ doc: /* Return error message for message SERIAL on the D-Bus BUS.
+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;
+{
+ Lisp_Object bus, serial, service;
+ struct gcpro gcpro1, gcpro2, gcpro3;
+ DBusConnection *connection;
+ DBusMessage *dmessage;
+ DBusMessageIter iter;
+ unsigned int dtype;
+ int i;
+ char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH];
+
+ /* Check parameters. */
+ bus = args[0];
+ serial = args[1];
+ service = args[2];
+
+ CHECK_SYMBOL (bus);
+ CHECK_NUMBER (serial);
+ CHECK_STRING (service);
+ GCPRO3 (bus, serial, service);
+
+ XD_DEBUG_MESSAGE ("%d %s ", XUINT (serial), SDATA (service));
+
+ /* Open a connection to the bus. */
+ connection = xd_initialize (bus);
+
+ /* Create the message. */
+ dmessage = dbus_message_new (DBUS_MESSAGE_TYPE_ERROR);
+ if ((dmessage == NULL)
+ || (!dbus_message_set_error_name (dmessage, DBUS_ERROR_FAILED))
+ || (!dbus_message_set_reply_serial (dmessage, XUINT (serial)))
+ || (!dbus_message_set_destination (dmessage, SDATA (service))))
+ {
+ UNGCPRO;
+ xsignal1 (Qdbus_error,
+ build_string ("Unable to create a error message"));
+ }
+
+ UNGCPRO;
+
+ /* Initialize parameter list of message. */
+ dbus_message_iter_init_append (dmessage, &iter);
+
+ /* Append parameters to the message. */
+ for (i = 3; i < nargs; ++i)
+ {
+ dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]);
+ if (XD_DBUS_TYPE_P (args[i]))
+ {
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]);
+ XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-2,
+ SDATA (format2 ("%s", args[i], Qnil)),
+ SDATA (format2 ("%s", args[i+1], Qnil)));
+ ++i;
+ }
+ else
+ {
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
+ XD_DEBUG_MESSAGE ("Parameter%d %s", i-2,
+ SDATA (format2 ("%s", args[i], Qnil)));
+ }
+
+ /* Check for valid signature. We use DBUS_TYPE_INVALID as
+ indication that there is no parent type. */
+ xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]);
+
+ xd_append_arg (dtype, args[i], &iter);
+ }
+
+ /* Send the message. The message is just added to the outgoing
+ message queue. */
+ if (!dbus_connection_send (connection, dmessage, NULL))
+ xsignal1 (Qdbus_error, build_string ("Cannot send message"));
+
+ /* Flush connection to ensure the message is handled. */
+ dbus_connection_flush (connection);
+
+ XD_DEBUG_MESSAGE ("Message sent");
+
+ /* Cleanup. */
+ dbus_message_unref (dmessage);
+
+ /* Return. */
+ return Qt;
+}
+
DEFUN ("dbus-send-signal", Fdbus_send_signal, Sdbus_send_signal, 5, MANY, 0,
doc: /* Send signal SIGNAL on the D-Bus BUS.
connection = xd_initialize (bus);
/* Create the message. */
- dmessage = dbus_message_new_signal ((char *) SDATA (path),
- (char *) SDATA (interface),
- (char *) SDATA (signal));
- if (dmessage == NULL)
- {
- UNGCPRO;
- xsignal1 (Qdbus_error, build_string ("Unable to create a new message"));
- }
-
+ dmessage = dbus_message_new_signal (SDATA (path),
+ SDATA (interface),
+ SDATA (signal));
UNGCPRO;
+ if (dmessage == NULL)
+ xsignal1 (Qdbus_error, build_string ("Unable to create a new message"));
/* Initialize parameter list of message. */
dbus_message_iter_init_append (dmessage, &iter);
/* Append parameters to the message. */
for (i = 5; i < nargs; ++i)
{
- XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
- XD_DEBUG_MESSAGE ("Parameter%d %s",
- i-4, SDATA (format2 ("%s", args[i], Qnil)));
-
dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]);
if (XD_DBUS_TYPE_P (args[i]))
- ++i;
+ {
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]);
+ XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4,
+ SDATA (format2 ("%s", args[i], Qnil)),
+ SDATA (format2 ("%s", args[i+1], Qnil)));
+ ++i;
+ }
+ else
+ {
+ XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
+ XD_DEBUG_MESSAGE ("Parameter%d %s", i-4,
+ SDATA (format2 ("%s", args[i], Qnil)));
+ }
- /* Check for valid signature. We use DBUS_TYPE_INVALID is
+ /* Check for valid signature. We use DBUS_TYPE_INVALID as
indication that there is no parent type. */
xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]);
{
Lisp_Object args, key, value;
struct gcpro gcpro1;
- static struct input_event event;
+ struct input_event event;
DBusConnection *connection;
DBusMessage *dmessage;
DBusMessageIter iter;
unsigned int dtype;
- int mtype;
- char uname[DBUS_MAXIMUM_NAME_LENGTH];
- char path[DBUS_MAXIMUM_MATCH_RULE_LENGTH]; /* Unlimited in D-Bus spec. */
- char interface[DBUS_MAXIMUM_NAME_LENGTH];
- char member[DBUS_MAXIMUM_NAME_LENGTH];
+ int mtype, serial;
+ const char *uname, *path, *interface, *member;
/* Open a connection to the bus. */
connection = xd_initialize (bus);
args = Fnreverse (args);
}
- /* Read message type, unique name, object path, interface and member
- from the message. */
- mtype = dbus_message_get_type (dmessage);
- strcpy (uname, dbus_message_get_sender (dmessage));
- strcpy (path, dbus_message_get_path (dmessage));
- strcpy (interface, dbus_message_get_interface (dmessage));
- strcpy (member, dbus_message_get_member (dmessage));
-
- XD_DEBUG_MESSAGE ("Event received: %d %s %s %s %s %s",
- mtype, uname, path, interface, member,
+ /* Read message type, message serial, unique name, object path,
+ interface and member from the message. */
+ mtype = dbus_message_get_type (dmessage);
+ serial =
+ ((mtype == DBUS_MESSAGE_TYPE_METHOD_RETURN)
+ || (mtype == DBUS_MESSAGE_TYPE_ERROR))
+ ? dbus_message_get_reply_serial (dmessage)
+ : dbus_message_get_serial (dmessage);
+ uname = dbus_message_get_sender (dmessage);
+ path = dbus_message_get_path (dmessage);
+ interface = dbus_message_get_interface (dmessage);
+ member = dbus_message_get_member (dmessage);
+
+ XD_DEBUG_MESSAGE ("Event received: %s %d %s %s %s %s %s",
+ (mtype == DBUS_MESSAGE_TYPE_INVALID)
+ ? "DBUS_MESSAGE_TYPE_INVALID"
+ : (mtype == DBUS_MESSAGE_TYPE_METHOD_CALL)
+ ? "DBUS_MESSAGE_TYPE_METHOD_CALL"
+ : (mtype == DBUS_MESSAGE_TYPE_METHOD_RETURN)
+ ? "DBUS_MESSAGE_TYPE_METHOD_RETURN"
+ : (mtype == DBUS_MESSAGE_TYPE_ERROR)
+ ? "DBUS_MESSAGE_TYPE_ERROR"
+ : "DBUS_MESSAGE_TYPE_SIGNAL",
+ serial, uname, path, interface, member,
SDATA (format2 ("%s", args, Qnil)));
- /* Search for a registered function of the message. */
- key = list3 (bus, build_string (interface), build_string (member));
- value = Fgethash (key, Vdbus_registered_functions_table, Qnil);
+ if ((mtype == DBUS_MESSAGE_TYPE_METHOD_RETURN)
+ || (mtype == DBUS_MESSAGE_TYPE_ERROR))
+ {
+ /* Search for a registered function of the message. */
+ key = list2 (bus, make_number (serial));
+ value = Fgethash (key, Vdbus_registered_functions_table, Qnil);
+
+ /* There shall be exactly one entry. Construct an event. */
+ if (NILP (value))
+ goto cleanup;
+
+ /* Remove the entry. */
+ Fremhash (key, Vdbus_registered_functions_table);
+
+ /* Construct an event. */
+ EVENT_INIT (event);
+ event.kind = DBUS_EVENT;
+ event.frame_or_window = Qnil;
+ event.arg = Fcons (value, args);
+ }
- /* Loop over the registered functions. Construct an event. */
- while (!NILP (value))
+ else /* (mtype != DBUS_MESSAGE_TYPE_METHOD_RETURN) */
{
- key = XCAR (value);
- /* key has the structure (UNAME SERVICE PATH HANDLER). */
- if (((uname == NULL)
- || (NILP (XCAR (key)))
- || (strcmp (uname, SDATA (XCAR (key))) == 0))
- && ((path == NULL)
- || (NILP (XCAR (XCDR (XCDR (key)))))
- || (strcmp (path, SDATA (XCAR (XCDR (XCDR (key))))) == 0))
- && (!NILP (XCAR (XCDR (XCDR (XCDR (key)))))))
+ /* Vdbus_registered_functions_table requires non-nil interface
+ and member. */
+ if ((interface == NULL) || (member == NULL))
+ goto cleanup;
+
+ /* Search for a registered function of the message. */
+ key = list3 (bus, build_string (interface), build_string (member));
+ value = Fgethash (key, Vdbus_registered_functions_table, Qnil);
+
+ /* Loop over the registered functions. Construct an event. */
+ while (!NILP (value))
{
- EVENT_INIT (event);
- event.kind = DBUS_EVENT;
- event.frame_or_window = Qnil;
- event.arg = Fcons (XCAR (XCDR (XCDR (XCDR (key)))), args);
-
- /* Add uname, path, interface and member to the event. */
- event.arg = Fcons ((member == NULL ? Qnil : build_string (member)),
- event.arg);
- event.arg = Fcons ((interface == NULL
- ? Qnil : build_string (interface)),
- event.arg);
- event.arg = Fcons ((path == NULL ? Qnil : build_string (path)),
- event.arg);
- event.arg = Fcons ((uname == NULL ? Qnil : build_string (uname)),
- event.arg);
-
- /* Add the bus symbol to the event. */
- event.arg = Fcons (bus, event.arg);
-
- /* Store it into the input event queue. */
- kbd_buffer_store_event (&event);
+ key = CAR_SAFE (value);
+ /* key has the structure (UNAME SERVICE PATH HANDLER). */
+ if (((uname == NULL)
+ || (NILP (CAR_SAFE (key)))
+ || (strcmp (uname, SDATA (CAR_SAFE (key))) == 0))
+ && ((path == NULL)
+ || (NILP (CAR_SAFE (CDR_SAFE (CDR_SAFE (key)))))
+ || (strcmp (path,
+ SDATA (CAR_SAFE (CDR_SAFE (CDR_SAFE (key)))))
+ == 0))
+ && (!NILP (CAR_SAFE (CDR_SAFE (CDR_SAFE (CDR_SAFE (key)))))))
+ {
+ EVENT_INIT (event);
+ event.kind = DBUS_EVENT;
+ event.frame_or_window = Qnil;
+ event.arg = Fcons (CAR_SAFE (CDR_SAFE (CDR_SAFE (CDR_SAFE (key)))),
+ args);
+ break;
+ }
+ value = CDR_SAFE (value);
}
- value = XCDR (value);
+
+ if (NILP (value))
+ goto cleanup;
}
- /* Cleanup. */
+ /* Add type, serial, uname, path, interface and member to the event. */
+ event.arg = Fcons ((member == NULL ? Qnil : build_string (member)),
+ event.arg);
+ event.arg = Fcons ((interface == NULL ? Qnil : build_string (interface)),
+ event.arg);
+ event.arg = Fcons ((path == NULL ? Qnil : build_string (path)),
+ event.arg);
+ event.arg = Fcons ((uname == NULL ? Qnil : build_string (uname)),
+ event.arg);
+ event.arg = Fcons (make_number (serial), event.arg);
+ event.arg = Fcons (make_number (mtype), event.arg);
+
+ /* Add the bus symbol to the event. */
+ event.arg = Fcons (bus, event.arg);
+
+ /* Store it into the input event queue. */
+ kbd_buffer_store_event (&event);
+
+ XD_DEBUG_MESSAGE ("Event stored: %s",
+ SDATA (format2 ("%s", event.arg, Qnil)));
+
+ cleanup:
dbus_message_unref (dmessage);
RETURN_UNGCPRO (Qnil);
}
}
DEFUN ("dbus-register-signal", Fdbus_register_signal, Sdbus_register_signal,
- 6, 6, 0,
+ 6, MANY, 0,
doc: /* Register for signal SIGNAL on the D-Bus BUS.
BUS is either the symbol `:system' or the symbol `:session'.
INTERFACE is an interface offered by SERVICE. It must provide SIGNAL.
HANDLER is a Lisp function to be called when the signal is received.
-It must accept as arguments the values SIGNAL is sending. INTERFACE,
-SIGNAL and HANDLER must not be nil. Example:
+It must accept as arguments the values SIGNAL is sending.
+
+All other arguments ARGS, if specified, must be strings. They stand
+for the respective arguments of the signal in their order, and are
+used for filtering as well. A nil argument might be used to preserve
+the order.
+
+INTERFACE, SIGNAL and HANDLER must not be nil. Example:
\(defun my-signal-handler (device)
(message "Device %s added" device))
("org.freedesktop.Hal" "/org/freedesktop/Hal/Manager" my-signal-handler))
`dbus-register-signal' returns an object, which can be used in
-`dbus-unregister-object' for removing the registration. */)
- (bus, service, path, interface, signal, handler)
- Lisp_Object bus, service, path, interface, signal, handler;
+`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;
{
+ Lisp_Object bus, service, path, interface, signal, handler;
+ struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6;
Lisp_Object uname, key, key1, value;
DBusConnection *connection;
+ int i;
char rule[DBUS_MAXIMUM_MATCH_RULE_LENGTH];
+ char x[DBUS_MAXIMUM_MATCH_RULE_LENGTH];
DBusError derror;
/* Check parameters. */
+ bus = args[0];
+ service = args[1];
+ path = args[2];
+ interface = args[3];
+ signal = args[4];
+ handler = args[5];
+
CHECK_SYMBOL (bus);
if (!NILP (service)) CHECK_STRING (service);
if (!NILP (path)) CHECK_STRING (path);
CHECK_STRING (signal);
if (!FUNCTIONP (handler))
wrong_type_argument (intern ("functionp"), handler);
+ GCPRO6 (bus, service, path, interface, signal, handler);
/* Retrieve unique name of service. If service is a known name, we
will register for the corresponding unique name, if any. Signals
are sent always with the unique name as sender. Note: the unique
name of "org.freedesktop.DBus" is that string itself. */
- if ((!NILP (service))
- && (strlen (SDATA (service)) > 0)
+ if ((STRINGP (service))
+ && (SBYTES (service) > 0)
&& (strcmp (SDATA (service), DBUS_SERVICE_DBUS) != 0)
&& (strncmp (SDATA (service), ":", 1) != 0))
{
/* Create a matching rule if the unique name exists (when no
wildcard). */
- if (NILP (uname) || (strlen (SDATA (uname)) > 0))
+ if (NILP (uname) || (SBYTES (uname) > 0))
{
/* Open a connection to the bus. */
connection = xd_initialize (bus);
/* Add unique name and path to the rule if they are non-nil. */
if (!NILP (uname))
- sprintf (rule, "%s,sender='%s'", rule, SDATA (uname));
+ {
+ sprintf (x, ",sender='%s'", SDATA (uname));
+ strcat (rule, x);
+ }
if (!NILP (path))
- sprintf (rule, "%s,path='%s'", rule, SDATA (path));
+ {
+ sprintf (x, ",path='%s'", SDATA (path));
+ strcat (rule, x);
+ }
+
+ /* Add arguments to the rule if they are non-nil. */
+ for (i = 6; i < nargs; ++i)
+ if (!NILP (args[i]))
+ {
+ CHECK_STRING (args[i]);
+ sprintf (x, ",arg%d='%s'", i-6, SDATA (args[i]));
+ strcat (rule, x);
+ }
/* Add the rule to the bus. */
dbus_error_init (&derror);
dbus_bus_add_match (connection, rule, &derror);
if (dbus_error_is_set (&derror))
- XD_ERROR (derror);
+ {
+ UNGCPRO;
+ XD_ERROR (derror);
+ }
XD_DEBUG_MESSAGE ("Matching rule \"%s\" created", rule);
}
Fputhash (key, Fcons (key1, value), Vdbus_registered_functions_table);
/* Return object. */
- return list2 (key, list3 (service, path, handler));
+ RETURN_UNGCPRO (list2 (key, list3 (service, path, handler)));
}
DEFUN ("dbus-register-method", Fdbus_register_method, Sdbus_register_method,
interface offered by SERVICE. It must provide METHOD. HANDLER is a
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.
-
-The function is not fully implemented and documented. Don't use it. */)
+used for composing the returning D-Bus message. */)
(bus, service, path, interface, method, handler)
Lisp_Object bus, service, path, interface, method, handler;
{
int result;
DBusError derror;
- if (NILP (Vdbus_debug))
- xsignal1 (Qdbus_error, build_string ("Not implemented yet"));
-
/* Check parameters. */
CHECK_SYMBOL (bus);
CHECK_STRING (service);
return list2 (key, list3 (service, path, handler));
}
-DEFUN ("dbus-unregister-object", Fdbus_unregister_object, Sdbus_unregister_object,
- 1, 1, 0,
- doc: /* Unregister OBJECT from the D-Bus.
-OBJECT must be the result of a preceding `dbus-register-signal' or
-`dbus-register-method' call. It returns t if OBJECT has been
-unregistered, nil otherwise. */)
- (object)
- Lisp_Object object;
-{
- Lisp_Object value;
- struct gcpro gcpro1;
-
- /* Check parameter. */
- if (!(CONSP (object) && (!NILP (XCAR (object))) && CONSP (XCDR (object))))
- wrong_type_argument (intern ("D-Bus"), object);
-
- /* Find the corresponding entry in the hash table. */
- value = Fgethash (XCAR (object), Vdbus_registered_functions_table, Qnil);
-
- /* Loop over the registered functions. */
- while (!NILP (value))
- {
- GCPRO1 (value);
-
- /* (car value) has the structure (UNAME SERVICE PATH HANDLER).
- (cdr object) has the structure ((SERVICE PATH HANDLER) ...). */
- if (!NILP (Fequal (XCDR (XCAR (value)), XCAR (XCDR (object)))))
- {
- /* Compute new hash value. */
- value = Fdelete (XCAR (value),
- Fgethash (XCAR (object),
- Vdbus_registered_functions_table, Qnil));
- if (NILP (value))
- Fremhash (XCAR (object), Vdbus_registered_functions_table);
- else
- Fputhash (XCAR (object), value, Vdbus_registered_functions_table);
- RETURN_UNGCPRO (Qt);
- }
- UNGCPRO;
- value = XCDR (value);
- }
-
- /* Return. */
- return Qnil;
-}
-
\f
void
syms_of_dbusbind ()
staticpro (&Qdbus_call_method);
defsubr (&Sdbus_call_method);
+ Qdbus_call_method_asynchronously = intern ("dbus-call-method-asynchronously");
+ staticpro (&Qdbus_call_method_asynchronously);
+ defsubr (&Sdbus_call_method_asynchronously);
+
+ Qdbus_method_return_internal = intern ("dbus-method-return-internal");
+ staticpro (&Qdbus_method_return_internal);
+ defsubr (&Sdbus_method_return_internal);
+
+ Qdbus_method_error_internal = intern ("dbus-method-error-internal");
+ staticpro (&Qdbus_method_error_internal);
+ defsubr (&Sdbus_method_error_internal);
+
Qdbus_send_signal = intern ("dbus-send-signal");
staticpro (&Qdbus_send_signal);
defsubr (&Sdbus_send_signal);
staticpro (&Qdbus_register_method);
defsubr (&Sdbus_register_method);
- Qdbus_unregister_object = intern ("dbus-unregister-object");
- staticpro (&Qdbus_unregister_object);
- defsubr (&Sdbus_unregister_object);
-
Qdbus_error = intern ("dbus-error");
staticpro (&Qdbus_error);
Fput (Qdbus_error, Qerror_conditions,
QCdbus_session_bus = intern (":session");
staticpro (&QCdbus_session_bus);
+ QCdbus_timeout = intern (":timeout");
+ staticpro (&QCdbus_timeout);
+
QCdbus_type_byte = intern (":byte");
staticpro (&QCdbus_type_byte);
QCdbus_type_dict_entry = intern (":dict-entry");
staticpro (&QCdbus_type_dict_entry);
- DEFVAR_LISP ("dbus-registered-functions-table", &Vdbus_registered_functions_table,
+ DEFVAR_LISP ("dbus-registered-functions-table",
+ &Vdbus_registered_functions_table,
doc: /* Hash table of registered functions for D-Bus.
-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 or a signal INTERFACE is offering. All arguments but
-BUS must not be nil.
+There are two different uses of the hash table: for calling registered
+functions, 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 or a signal 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 HANDLER) (UNAME SERVICE PATH HANDLER) ...).
unique name. PATH is the object path of the sending object. All of
them can be nil, which means a wildcard then. HANDLER is the function
to be called when a D-Bus message, which matches the key criteria,
-arrives. */);
+arrives.
+
+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_functions_table in dbus.el,
because we need to define a hash table function first. */
Vdbus_registered_functions_table = Qnil;