diff options
Diffstat (limited to 'glib/dbus-gsignature.c')
| -rw-r--r-- | glib/dbus-gsignature.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/glib/dbus-gsignature.c b/glib/dbus-gsignature.c new file mode 100644 index 00000000..a0370b0e --- /dev/null +++ b/glib/dbus-gsignature.c @@ -0,0 +1,189 @@ +/* -*- mode: C; c-file-style: "gnu" -*- */ +/* dbus-gsignature.c Mapping from dbus type signatures to GType + * + * 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 "config.h" +#include "dbus-gtest.h" +#include "dbus-gsignature.h" +#include "dbus-gvalue-utils.h" +#include <string.h> +#include <glib.h> + +#define MAP_BASIC(d_t, g_t) \ + case DBUS_TYPE_##d_t: \ + return G_TYPE_##g_t; +static GType +typecode_to_gtype (int type) +{ + switch (type) + { + MAP_BASIC (BOOLEAN, BOOLEAN); + MAP_BASIC (BYTE, UCHAR); + MAP_BASIC (INT16, INT); + MAP_BASIC (INT32, INT); + MAP_BASIC (UINT16, UINT); + MAP_BASIC (UINT32, UINT); + MAP_BASIC (INT64, INT64); + MAP_BASIC (UINT64, UINT64); + MAP_BASIC (DOUBLE, DOUBLE); + MAP_BASIC (STRING, STRING); + default: + return G_TYPE_INVALID; + } +} +#undef MAP_BASIC + +static gboolean +dbus_typecode_maps_to_basic (int typecode) +{ + return typecode_to_gtype (typecode) != G_TYPE_INVALID; +} + +GType +_dbus_gtype_from_basic_typecode (int typecode) +{ + g_assert (dbus_type_is_basic (typecode)); + g_assert (dbus_typecode_maps_to_basic (typecode)); + return typecode_to_gtype (typecode); +} + +static GType +signature_iter_to_g_type_dict (const DBusSignatureIter *subiter, gboolean is_client) +{ + DBusSignatureIter iter; + GType key_gtype; + GType value_gtype; + + g_assert (dbus_signature_iter_get_current_type (subiter) == DBUS_TYPE_DICT_ENTRY); + + dbus_signature_iter_recurse (subiter, &iter); + + key_gtype = _dbus_gtype_from_signature_iter (&iter, is_client); + if (key_gtype == G_TYPE_INVALID) + return G_TYPE_INVALID; + + dbus_signature_iter_next (&iter); + value_gtype = _dbus_gtype_from_signature_iter (&iter, is_client); + if (value_gtype == G_TYPE_INVALID) + return G_TYPE_INVALID; + + if (!_dbus_gtype_is_valid_hash_key (key_gtype) + || !_dbus_gtype_is_valid_hash_value (value_gtype)) + /* Later we need to return DBUS_TYPE_G_VALUE */ + return G_TYPE_INVALID; + + return dbus_g_type_get_map ("GHashTable", key_gtype, value_gtype); +} + +static GType +signature_iter_to_g_type_array (DBusSignatureIter *iter, gboolean is_client) +{ + GType elt_gtype; + + elt_gtype = _dbus_gtype_from_signature_iter (iter, is_client); + if (elt_gtype == G_TYPE_INVALID) + return G_TYPE_INVALID; + + if (elt_gtype == G_TYPE_OBJECT) + return DBUS_TYPE_G_OBJECT_ARRAY; + if (elt_gtype == G_TYPE_STRING) + return G_TYPE_STRV; + if (_dbus_g_type_is_fixed (elt_gtype)) + return dbus_g_type_get_collection ("GArray", elt_gtype); + else if (g_type_is_a (elt_gtype, G_TYPE_OBJECT) + || g_type_is_a (elt_gtype, G_TYPE_BOXED)) + return dbus_g_type_get_collection ("GPtrArray", elt_gtype); + + /* Later we need to return DBUS_TYPE_G_VALUE */ + return G_TYPE_INVALID; +} + +GType +_dbus_gtype_from_signature_iter (DBusSignatureIter *iter, gboolean is_client) +{ + int current_type; + + current_type = dbus_signature_iter_get_current_type (iter); + /* TODO: handle type 0? */ + if (dbus_typecode_maps_to_basic (current_type)) + return _dbus_gtype_from_basic_typecode (current_type); + else if (current_type == DBUS_TYPE_OBJECT_PATH) + return DBUS_TYPE_G_OBJECT_PATH; + else + { + DBusSignatureIter subiter; + + g_assert (dbus_type_is_container (current_type)); + + if (current_type == DBUS_TYPE_VARIANT) + return G_TYPE_VALUE; + if (current_type == DBUS_TYPE_STRUCT) + return G_TYPE_VALUE_ARRAY; + + dbus_signature_iter_recurse (iter, &subiter); + + if (current_type == DBUS_TYPE_ARRAY) + { + int elt_type = dbus_signature_iter_get_current_type (&subiter); + if (elt_type == DBUS_TYPE_DICT_ENTRY) + return signature_iter_to_g_type_dict (&subiter, is_client); + else + return signature_iter_to_g_type_array (&subiter, is_client); + } + else + { + g_assert_not_reached (); + return G_TYPE_INVALID; + } + } +} + +GType +_dbus_gtype_from_signature (const char *signature, gboolean is_client) +{ + DBusSignatureIter iter; + + dbus_signature_iter_init (&iter, signature); + + return _dbus_gtype_from_signature_iter (&iter, is_client); +} + +GArray * +_dbus_gtypes_from_arg_signature (const char *argsig, gboolean is_client) +{ + GArray *ret; + int current_type; + DBusSignatureIter sigiter; + + ret = g_array_new (FALSE, FALSE, sizeof (GType)); + + dbus_signature_iter_init (&sigiter, argsig); + while ((current_type = dbus_signature_iter_get_current_type (&sigiter)) != DBUS_TYPE_INVALID) + { + GType curtype; + + curtype = _dbus_gtype_from_signature_iter (&sigiter, is_client); + g_array_append_val (ret, curtype); + dbus_signature_iter_next (&sigiter); + } + return ret; +} |