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|
/* -*- mode: C; c-file-style: "gnu" -*- */
/* dbus-gvalue.c GValue to-from DBusMessageIter
*
* Copyright (C) 2004 Ximian, Inc.
* Copyright (C) 2005 Red Hat, Inc.
*
* Licensed under the Academic Free License version 2.1
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <dbus-gvalue.h>
#include "dbus/dbus-signature.h"
/* This is slightly evil, we don't use g_value_set_foo() functions */
#define MAP_BASIC(d_t, g_t) \
case DBUS_TYPE_##d_t: \
return G_TYPE_##g_t;
static GType
dbus_dbus_type_to_gtype (int type)
{
switch (type)
{
MAP_BASIC (BOOLEAN, BOOLEAN);
MAP_BASIC (BYTE, UCHAR);
MAP_BASIC (INT32, INT);
MAP_BASIC (UINT32, UINT);
MAP_BASIC (INT64, INT64);
MAP_BASIC (UINT64, UINT64);
MAP_BASIC (DOUBLE, DOUBLE);
case DBUS_TYPE_INT16:
return G_TYPE_INT;
case DBUS_TYPE_UINT16:
return G_TYPE_UINT;
case DBUS_TYPE_STRING:
case DBUS_TYPE_OBJECT_PATH:
case DBUS_TYPE_SIGNATURE:
return G_TYPE_STRING;
case DBUS_TYPE_STRUCT:
case DBUS_TYPE_ARRAY:
case DBUS_TYPE_VARIANT:
default:
return G_TYPE_INVALID;
}
}
#undef MAP_BASIC
gboolean
dbus_gvalue_init (int type,
GValue *value)
{
GType gtype;
gtype = dbus_dbus_type_to_gtype (type);
if (gtype == G_TYPE_INVALID)
return FALSE;
g_value_init (value, gtype);
return TRUE;
}
/* FIXME - broken for containers
*/
static int
base_type_from_signature (const char *signature)
{
DBusSignatureIter iter;
dbus_signature_iter_init (&iter, signature);
return dbus_signature_iter_get_current_type (&iter);
}
const char *
dbus_gvalue_genmarshal_name_from_type (const char *signature)
{
int type;
type = base_type_from_signature (signature);
switch (type)
{
case DBUS_TYPE_BOOLEAN:
return "BOOLEAN";
case DBUS_TYPE_BYTE:
return "UCHAR";
case DBUS_TYPE_INT32:
return "INT";
case DBUS_TYPE_UINT32:
return "UINT";
case DBUS_TYPE_INT64:
return "INT64";
case DBUS_TYPE_UINT64:
return "UINT64";
case DBUS_TYPE_DOUBLE:
return "DOUBLE";
case DBUS_TYPE_INT16:
return "INT";
break;
case DBUS_TYPE_UINT16:
return "UINT";
case DBUS_TYPE_STRING:
case DBUS_TYPE_OBJECT_PATH:
case DBUS_TYPE_SIGNATURE:
return "STRING";
case DBUS_TYPE_STRUCT:
case DBUS_TYPE_ARRAY:
case DBUS_TYPE_VARIANT:
return NULL;
}
return NULL;
}
const char *
dbus_gvalue_ctype_from_type (const char *signature, gboolean in)
{
int type;
type = base_type_from_signature (signature);
switch (type)
{
case DBUS_TYPE_BOOLEAN:
return "gboolean";
case DBUS_TYPE_BYTE:
return "guchar";
case DBUS_TYPE_INT32:
return "gint32";
case DBUS_TYPE_UINT32:
return "guint32";
case DBUS_TYPE_INT64:
return "gint64";
case DBUS_TYPE_UINT64:
return "guint64";
case DBUS_TYPE_DOUBLE:
return "gdouble";
case DBUS_TYPE_INT16:
return "gint";
break;
case DBUS_TYPE_UINT16:
return "guint";
case DBUS_TYPE_STRING:
case DBUS_TYPE_OBJECT_PATH:
case DBUS_TYPE_SIGNATURE:
/* FIXME - kind of a hack */
if (in)
return "const char *";
else
return "char *";
case DBUS_TYPE_STRUCT:
case DBUS_TYPE_ARRAY:
case DBUS_TYPE_VARIANT:
return NULL;
}
return NULL;
}
const char *
dbus_gtype_to_dbus_type (GType type)
{
switch (type)
{
case G_TYPE_CHAR:
case G_TYPE_UCHAR:
return DBUS_TYPE_BYTE_AS_STRING;
case G_TYPE_BOOLEAN:
return DBUS_TYPE_BOOLEAN_AS_STRING;
/* long gets cut to 32 bits so the remote API is consistent
* on all architectures
*/
case G_TYPE_LONG:
case G_TYPE_INT:
return DBUS_TYPE_INT32_AS_STRING;
case G_TYPE_ULONG:
case G_TYPE_UINT:
return DBUS_TYPE_UINT32_AS_STRING;
case G_TYPE_INT64:
return DBUS_TYPE_INT64_AS_STRING;
case G_TYPE_UINT64:
return DBUS_TYPE_UINT64_AS_STRING;
case G_TYPE_FLOAT:
case G_TYPE_DOUBLE:
return DBUS_TYPE_DOUBLE_AS_STRING;
case G_TYPE_STRING:
return DBUS_TYPE_STRING_AS_STRING;
default:
return NULL;
}
}
gboolean
dbus_gvalue_demarshal (DBusMessageIter *iter, GValue *value)
{
g_assert (sizeof (dbus_bool_t) == sizeof (value->data[0].v_int));
dbus_gvalue_init (dbus_message_iter_get_arg_type (iter), value);
switch (dbus_message_iter_get_arg_type (iter))
{
case DBUS_TYPE_BOOLEAN:
{
dbus_bool_t bool;
dbus_message_iter_get_basic (iter, &bool);
g_value_set_boolean (value, bool);
return TRUE;
}
case DBUS_TYPE_BYTE:
{
unsigned char byte;
dbus_message_iter_get_basic (iter, &byte);
g_value_set_uchar (value, byte);
return TRUE;
}
case DBUS_TYPE_INT32:
{
dbus_int32_t intval;
dbus_message_iter_get_basic (iter, &intval);
g_value_set_int (value, intval);
return TRUE;
}
case DBUS_TYPE_UINT32:
{
dbus_uint32_t intval;
dbus_message_iter_get_basic (iter, &intval);
g_value_set_uint (value, intval);
return TRUE;
}
case DBUS_TYPE_INT64:
{
dbus_int64_t intval;
dbus_message_iter_get_basic (iter, &intval);
g_value_set_int64 (value, intval);
return TRUE;
}
case DBUS_TYPE_UINT64:
{
dbus_uint64_t intval;
dbus_message_iter_get_basic (iter, &intval);
g_value_set_uint64 (value, intval);
return TRUE;
}
case DBUS_TYPE_DOUBLE:
{
double dval;
dbus_message_iter_get_basic (iter, &dval);
g_value_set_double (value, dval);
return TRUE;
}
case DBUS_TYPE_INT16:
{
dbus_int16_t v;
dbus_message_iter_get_basic (iter, &v);
g_value_set_int (value, v);
return TRUE;
}
case DBUS_TYPE_UINT16:
{
dbus_uint16_t v;
dbus_message_iter_get_basic (iter, &v);
g_value_set_uint (value, v);
return TRUE;
}
case DBUS_TYPE_STRING:
case DBUS_TYPE_OBJECT_PATH:
case DBUS_TYPE_SIGNATURE:
{
const char *s;
dbus_message_iter_get_basic (iter, &s);
g_value_set_string (value, s);
return TRUE;
}
case DBUS_TYPE_STRUCT:
case DBUS_TYPE_ARRAY:
case DBUS_TYPE_VARIANT:
default:
return FALSE;
}
}
gboolean
dbus_gvalue_marshal (DBusMessageIter *iter, GValue *value)
{
GType value_type;
value_type = G_VALUE_TYPE (value);
switch (value_type)
{
case G_TYPE_CHAR:
{
char b = g_value_get_char (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_BYTE,
&b))
goto nomem;
}
return TRUE;
case G_TYPE_UCHAR:
{
unsigned char b = g_value_get_uchar (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_BYTE,
&b))
goto nomem;
}
return TRUE;
case G_TYPE_BOOLEAN:
{
dbus_bool_t b = g_value_get_boolean (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_BOOLEAN,
&b))
goto nomem;
}
return TRUE;
case G_TYPE_INT:
{
dbus_int32_t v = g_value_get_int (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_INT32,
&v))
goto nomem;
}
return TRUE;
case G_TYPE_UINT:
{
dbus_uint32_t v = g_value_get_uint (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_UINT32,
&v))
goto nomem;
}
return TRUE;
/* long gets cut to 32 bits so the remote API is consistent
* on all architectures
*/
case G_TYPE_LONG:
{
dbus_int32_t v = g_value_get_long (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_INT32,
&v))
goto nomem;
}
return TRUE;
case G_TYPE_ULONG:
{
dbus_uint32_t v = g_value_get_ulong (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_UINT32,
&v))
goto nomem;
}
return TRUE;
case G_TYPE_INT64:
{
gint64 v = g_value_get_int64 (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_INT64,
&v))
goto nomem;
}
return TRUE;
case G_TYPE_UINT64:
{
guint64 v = g_value_get_uint64 (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_UINT64,
&v))
goto nomem;
}
return TRUE;
case G_TYPE_FLOAT:
{
double v = g_value_get_float (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_DOUBLE,
&v))
goto nomem;
}
return TRUE;
case G_TYPE_DOUBLE:
{
double v = g_value_get_double (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_DOUBLE,
&v))
goto nomem;
}
return TRUE;
case G_TYPE_STRING:
/* FIXME, the GValue string may not be valid UTF-8 */
{
const char *v = g_value_get_string (value);
if (!dbus_message_iter_append_basic (iter,
DBUS_TYPE_STRING,
&v))
goto nomem;
}
return TRUE;
default:
/* FIXME: we need to define custom boxed types for arrays
etc. so we can map them transparently / pleasantly */
return FALSE;
}
nomem:
g_error ("no memory");
return FALSE;
}
/* FIXME is there a better way to do this? */
gboolean
dbus_gvalue_store (GValue *value,
gpointer storage)
{
switch (G_VALUE_TYPE (value))
{
case G_TYPE_CHAR:
*((gchar *) storage) = g_value_get_char (value);
return TRUE;
case G_TYPE_UCHAR:
*((guchar *) storage) = g_value_get_uchar (value);
return TRUE;
case G_TYPE_BOOLEAN:
*((gboolean *) storage) = g_value_get_boolean (value);
return TRUE;
case G_TYPE_LONG:
*((glong *) storage) = g_value_get_long (value);
return TRUE;
case G_TYPE_ULONG:
*((gulong *) storage) = g_value_get_ulong (value);
return TRUE;
case G_TYPE_INT:
*((gint *) storage) = g_value_get_int (value);
return TRUE;
case G_TYPE_UINT:
*((guint *) storage) = g_value_get_uint (value);
return TRUE;
case G_TYPE_INT64:
*((gint64 *) storage) = g_value_get_int64 (value);
return TRUE;
case G_TYPE_UINT64:
*((guint64 *) storage) = g_value_get_uint64 (value);
return TRUE;
case G_TYPE_FLOAT:
case G_TYPE_DOUBLE:
*((gdouble *) storage) = g_value_get_double (value);
return TRUE;
case G_TYPE_STRING:
/* FIXME - should optimize by not duping string twice */
*((gchar **) storage) = g_value_dup_string (value);
return TRUE;
default:
return FALSE;
}
}
|