[tracker/dbus-fd-experiment: 1/5] Add Tracker Steroids interface
- From: Adrien Bustany <abustany src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [tracker/dbus-fd-experiment: 1/5] Add Tracker Steroids interface
- Date: Thu, 10 Jun 2010 23:05:31 +0000 (UTC)
commit 59d4ce0cb3750d4cd6ac4297740bc86423bc8cf6
Author: Adrien Bustany <abustany gnome org>
Date: Thu May 20 17:55:31 2010 -0400
Add Tracker Steroids interface
The Steroids interface uses a local pipe to transfer query results,
instead of sending them over DBus. To do so, it uses a new feature in
DBus 1.3 which allows passing UNIX file descriptors in messages.
This commit introduces a new DBus object exported on the store at path
/org/freedesktop/Tracker1/Steroids. Methods are in the interface
org.freedesktop.Tracker1.Steroids.
The DBus interface is composed of two methods:
PrepareQuery <- SPARQL query
-> UNIX file descriptors where results will be written
-> Query identifier
The PrepareQuery call initiates a query in Tracker. The query is not
really prepared, in the sense that a PrepareQuery with an erroneous
query will succeed. It's the Fetch call which will fail in that case.
The returned query identifier can be used to initiate the Fetch.
Fetch <- Query identifier
The Fetch call executes the query with the given identifier, and returns
the results over the pipe returned by PrepareQuery.
Note that while results are being fetched, a DB cursor is left open,
blocking other concurrent INSERTs. It is therefore important to fetch
the results and free the iterator as fast as possible.
configure.ac | 30 ++
src/tracker-store/Makefile.am | 6 +
src/tracker-store/tracker-dbus.c | 19 ++
src/tracker-store/tracker-steroids.c | 594 ++++++++++++++++++++++++++++++++++
src/tracker-store/tracker-steroids.h | 65 ++++
5 files changed, 714 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 0a0580d..d2135d9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1690,6 +1690,35 @@ fi
AM_CONDITIONAL(HAVE_TOTEM_PL_PARSER, test "x$have_playlist" = "xyes")
+####################################################################
+# Check for DBus > 1.3 for Steroids (query over pipe) support
+####################################################################
+
+AC_ARG_ENABLE(dbus-fd-passing,
+ AS_HELP_STRING([--enable-dbus-fd-passing],
+ [enable DBus FD passing for faster IPC [[default=yes]]]),,
+ [enable_dbus_fd_passing=yes])
+
+if test "x$enable_dbus_fd_passing" != "xno" ; then
+ PKG_CHECK_EXISTS([dbus-1 >= 1.3],
+ [have_dbus_fd_passing=yes],
+ [have_dbus_fd_passing=no])
+
+ if test "x$have_dbus_fd_passing" = "xyes"; then
+ AC_DEFINE(HAVE_DBUS_FD_PASSING, [], [Define if we have DBus >= 1.3 and want DBus FD passing])
+ fi
+else
+ have_dbus_fd_passing="no (disabled)"
+fi
+
+if test "x$enable_dbus_fd_passing" = "xyes"; then
+ if test "x$have_dbus_fd_passing" != "xyes"; then
+ AC_MSG_ERROR([Couldn't find a recent enough DBus for FD passing.])
+ fi
+fi
+
+AM_CONDITIONAL(HAVE_DBUS_FD_PASSING, test "x$have_dbus_fd_passing" = "xyes")
+
##################################################################
# Enable mockup extractor module?
##################################################################
@@ -1967,6 +1996,7 @@ Build Configuration:
Support for Cyrillic languages (enca): $have_enca
Support for network status detection: $have_network_manager
Unicode support library: $with_unicode_support
+ Support for DBus FD passing: $have_dbus_fd_passing
Applications:
diff --git a/src/tracker-store/Makefile.am b/src/tracker-store/Makefile.am
index edf3ed8..a5b986f 100644
--- a/src/tracker-store/Makefile.am
+++ b/src/tracker-store/Makefile.am
@@ -54,6 +54,12 @@ tracker_store_SOURCES = \
tracker-status.c \
tracker-status.h
+if HAVE_DBUS_FD_PASSING
+tracker_store_SOURCES += \
+ tracker-steroids.c \
+ tracker-steroids.h
+endif
+
if OS_WIN32
tracker_store_win_libs = -lws2_32 -lkernel32
endif
diff --git a/src/tracker-store/tracker-dbus.c b/src/tracker-store/tracker-dbus.c
index 440c48e..310f804 100644
--- a/src/tracker-store/tracker-dbus.c
+++ b/src/tracker-store/tracker-dbus.c
@@ -43,6 +43,10 @@
#include "tracker-backup-glue.h"
#include "tracker-marshal.h"
+#ifdef HAVE_DBUS_FD_PASSING
+#include "tracker-steroids.h"
+#endif
+
static DBusGConnection *connection;
static DBusGProxy *gproxy;
static GSList *objects;
@@ -289,6 +293,21 @@ tracker_dbus_register_objects (void)
TRACKER_RESOURCES_PATH);
objects = g_slist_prepend (objects, object);
+#ifdef HAVE_DBUS_FD_PASSING
+ /* Add org.freedesktop.Tracker1.Steroids */
+ object = tracker_steroids_new ();
+ if (!object) {
+ g_critical ("Could not create TrackerSteroids object to register");
+ return FALSE;
+ }
+
+ dbus_connection_add_filter (dbus_g_connection_get_connection (connection),
+ tracker_steroids_connection_filter,
+ object,
+ NULL);
+ objects = g_slist_prepend (objects, object);
+#endif
+
/* Reverse list since we added objects at the top each time */
objects = g_slist_reverse (objects);
diff --git a/src/tracker-store/tracker-steroids.c b/src/tracker-store/tracker-steroids.c
new file mode 100644
index 0000000..f3134fc
--- /dev/null
+++ b/src/tracker-store/tracker-steroids.c
@@ -0,0 +1,594 @@
+/*
+ * Copyright (C) 2010, Codeminded BVBA <abustany gnome org>
+ *
+ * This library 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.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <gio/gunixoutputstream.h>
+#include <gio/gunixinputstream.h>
+
+#include "tracker-dbus.h"
+#include "tracker-steroids.h"
+#include "tracker-store.h"
+
+#define DBUS_ERROR_UNKNOWN_METHOD_NAME "org.freedesktop.DBus.Error.UnknownMethod"
+#define DBUS_ERROR_UNKNOWN_METHOD_MESSAGE "Method \"%s\" with signature \"%s\" on interface \"%s\" doesn't exist"
+
+/**
+ * /!\ IMPORTANT WARNING /!\
+ *
+ * DBus 1.3 is required for this feature to work, since UNIX FD passing is not
+ * present in earlier versions. However, using UNIX FD passing with DBus will
+ * make Valgrind stop, since the fcntl command F_DUPFD_CLOEXEC is not supported
+ * as of version 3.5.
+ * This has been reported here: https://bugs.kde.org/show_bug.cgi?id=238696
+ */
+
+G_DEFINE_TYPE (TrackerSteroids, tracker_steroids, G_TYPE_OBJECT)
+
+#define TRACKER_STEROIDS_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), TRACKER_TYPE_STEROIDS, TrackerSteroidsPrivate))
+
+typedef struct {
+ GHashTable *clients;
+} TrackerSteroidsPrivate;
+
+typedef struct {
+ TrackerSteroids *parent;
+ DBusMessage *call_message;
+ int fd;
+ unsigned int send_buffer_index;
+ char send_buffer[TRACKER_STEROIDS_BUFFER_SIZE];
+ guint request_id;
+ DBusConnection *connection;
+} ClientInfo;
+
+typedef struct {
+ GError *error;
+ gpointer user_data;
+} InThreadPtr;
+
+static void tracker_steroids_finalize (GObject *object);
+
+static void
+tracker_steroids_class_init (TrackerSteroidsClass *klass)
+{
+ GObjectClass *object_class;
+
+ object_class = G_OBJECT_CLASS (klass);
+
+ object_class->finalize = tracker_steroids_finalize;
+
+ g_type_class_add_private (object_class, sizeof (TrackerSteroidsPrivate));
+}
+
+static void
+tracker_steroids_init (TrackerSteroids *object)
+{
+ TrackerSteroidsPrivate *priv = TRACKER_STEROIDS_GET_PRIVATE (object);
+
+ priv->clients = g_hash_table_new (g_direct_hash, g_direct_equal);
+}
+
+TrackerSteroids*
+tracker_steroids_new (void)
+{
+ return g_object_new (TRACKER_TYPE_STEROIDS, NULL);
+}
+
+static void
+destroy_client_info (gpointer user_data)
+{
+ ClientInfo *info = user_data;
+
+ dbus_message_unref (info->call_message);
+ dbus_connection_unref (info->connection);
+
+ if (info->fd) {
+ close (info->fd);
+ }
+
+ g_slice_free (ClientInfo, user_data);
+}
+
+static void
+query_callback (gpointer inthread_data,
+ GError *error,
+ gpointer user_data)
+{
+ InThreadPtr *ptr = inthread_data;
+ ClientInfo *info = user_data;
+ DBusMessage *reply;
+
+ if (ptr && ptr->error) {
+ /* Client is still there, but query failed */
+ tracker_dbus_request_failed (info->request_id,
+ NULL,
+ &ptr->error,
+ NULL);
+ reply = dbus_message_new_error (info->call_message,
+ TRACKER_STEROIDS_INTERFACE ".QueryError",
+ ptr->error->message);
+ dbus_connection_send (info->connection, reply, NULL);
+ dbus_message_unref (reply);
+ g_error_free (ptr->error);
+ } else if (error) {
+ /* Client has disappeared */
+ tracker_dbus_request_failed (info->request_id,
+ NULL,
+ &error,
+ NULL);
+ reply = dbus_message_new_error (info->call_message,
+ TRACKER_STEROIDS_INTERFACE ".QueryError",
+ error->message);
+ dbus_connection_send (info->connection, reply, NULL);
+ dbus_message_unref (reply);
+ } else {
+ tracker_dbus_request_success (info->request_id,
+ NULL);
+ reply = dbus_message_new_method_return (info->call_message);
+ dbus_connection_send (info->connection, reply, NULL);
+ dbus_message_unref (reply);
+ }
+
+ if (ptr) {
+ g_slice_free (InThreadPtr, ptr);
+ }
+}
+
+static void
+update_callback (GError *error, gpointer user_data)
+{
+ ClientInfo *info = user_data;
+ DBusMessage *reply;
+
+ if (error) {
+ tracker_dbus_request_failed (info->request_id,
+ NULL,
+ &error,
+ NULL);
+ reply = dbus_message_new_error (info->call_message,
+ TRACKER_STEROIDS_INTERFACE ".UpdateError",
+ error->message);
+ dbus_connection_send (info->connection, reply, NULL);
+ dbus_message_unref (reply);
+ return;
+ }
+
+ tracker_dbus_request_success (info->request_id,
+ NULL);
+ reply = dbus_message_new_method_return (info->call_message);
+ dbus_connection_send (info->connection, reply, NULL);
+ dbus_message_unref (reply);
+}
+
+static void
+marshall_hash_table_item (gpointer key, gpointer value, gpointer user_data)
+{
+ DBusMessageIter *iter = user_data;
+ DBusMessageIter subiter;
+
+ dbus_message_iter_open_container (iter, DBUS_TYPE_DICT_ENTRY, NULL, &subiter);
+ dbus_message_iter_append_basic (&subiter, DBUS_TYPE_STRING, &key);
+ dbus_message_iter_append_basic (&subiter, DBUS_TYPE_STRING, &value);
+ dbus_message_iter_close_container (iter, &subiter);
+}
+
+static void
+marshall_hash_table (DBusMessageIter *iter, GHashTable *hash)
+{
+ DBusMessageIter subiter;
+
+ dbus_message_iter_open_container (iter, DBUS_TYPE_ARRAY, "{ss}", &subiter);
+ g_hash_table_foreach (hash, marshall_hash_table_item, &subiter);
+ dbus_message_iter_close_container (iter, &subiter);
+}
+
+static void
+update_blank_callback (GPtrArray *blank_nodes, GError *error, gpointer user_data)
+{
+ ClientInfo *info = user_data;
+ DBusMessage *reply;
+ int i, j;
+ /* Reply type is aaa{ss} */
+ DBusMessageIter iter;
+ DBusMessageIter subiter;
+ DBusMessageIter subsubiter;
+
+ if (info->fd) {
+ close (info->fd);
+ }
+
+ if (error) {
+ tracker_dbus_request_failed (info->request_id,
+ NULL,
+ &error,
+ NULL);
+ reply = dbus_message_new_error (info->call_message,
+ TRACKER_STEROIDS_INTERFACE ".UpdateBlankError",
+ error->message);
+ dbus_connection_send (info->connection, reply, NULL);
+ dbus_message_unref (reply);
+ return;
+ }
+
+ tracker_dbus_request_success (info->request_id,
+ NULL);
+ reply = dbus_message_new_method_return (info->call_message);
+ dbus_message_iter_init_append (reply, &iter);
+
+ dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, "aa{ss}", &subiter);
+ for (i = 0; i < blank_nodes->len; i++) {
+ GPtrArray *inner_array;
+ inner_array = g_ptr_array_index (blank_nodes, i);
+
+ dbus_message_iter_open_container (&subiter, DBUS_TYPE_ARRAY, "a{ss}", &subsubiter);
+ for (j = 0; j < inner_array->len; j++) {
+ GHashTable *hash = g_ptr_array_index (inner_array, j);
+
+ marshall_hash_table (&subsubiter, hash);
+ }
+ dbus_message_iter_close_container (&subiter, &subsubiter);
+ }
+ dbus_message_iter_close_container (&iter, &subiter);
+
+ dbus_connection_send (info->connection, reply, NULL);
+ dbus_message_unref (reply);
+}
+
+static gpointer
+query_inthread (TrackerDBCursor *cursor,
+ GError *error,
+ gpointer user_data)
+{
+ InThreadPtr *ptr = g_slice_new0 (InThreadPtr);
+ ClientInfo *info = user_data;
+ GError *loop_error = NULL;
+ GOutputStream *output_stream;
+ GDataOutputStream *data_output_stream;
+ guint n_columns;
+ int *column_sizes;
+ int *column_offsets;
+ const gchar **column_data;
+
+ output_stream = g_buffered_output_stream_new_sized (g_unix_output_stream_new (info->fd, TRUE),
+ TRACKER_STEROIDS_BUFFER_SIZE);
+ data_output_stream = g_data_output_stream_new (output_stream);
+
+ if (error) {
+ g_data_output_stream_put_int32 (data_output_stream,
+ TRACKER_STEROIDS_RC_ERROR,
+ NULL,
+ NULL);
+ g_object_unref (data_output_stream);
+ g_object_unref (output_stream);
+ ptr->error = g_error_copy (error);
+ return ptr;
+ }
+
+ n_columns = tracker_db_cursor_get_n_columns (cursor);
+
+ column_sizes = g_malloc (n_columns * sizeof (int));
+ column_offsets = g_malloc (n_columns * sizeof (int));
+ column_data = g_malloc (n_columns * sizeof (char*));
+
+ while (tracker_db_cursor_iter_next (cursor, &loop_error)) {
+ int i;
+ guint last_offset = -1;
+
+ if (loop_error != NULL) {
+ goto end_query_inthread;
+ }
+
+ for (i = 0; i < n_columns ; i++) {
+ const gchar *str;
+
+ str = tracker_db_cursor_get_string (cursor, i);
+
+ column_sizes[i] = str ? strlen (str) : 0;
+ column_data[i] = str;
+
+ last_offset += column_sizes[i] + 1;
+ column_offsets[i] = last_offset;
+ }
+
+ g_data_output_stream_put_int32 (data_output_stream,
+ TRACKER_STEROIDS_RC_ROW,
+ NULL,
+ &loop_error);
+
+ if (loop_error) {
+ goto end_query_inthread;
+ }
+
+ g_data_output_stream_put_int32 (data_output_stream,
+ n_columns,
+ NULL,
+ &loop_error);
+
+ if (loop_error) {
+ goto end_query_inthread;
+ }
+
+ for (i = 0; i < n_columns; i++) {
+ g_data_output_stream_put_int32 (data_output_stream,
+ column_offsets[i],
+ NULL,
+ &loop_error);
+ if (loop_error) {
+ goto end_query_inthread;
+ }
+ }
+
+ for (i = 0; i < n_columns; i++) {
+ g_data_output_stream_put_string (data_output_stream,
+ column_data[i] ? column_data[i] : "",
+ NULL,
+ &loop_error);
+ g_data_output_stream_put_byte (data_output_stream,
+ 0,
+ NULL,
+ &loop_error);
+
+ if (loop_error) {
+ goto end_query_inthread;
+ }
+ }
+ }
+end_query_inthread:
+
+ if (!loop_error) {
+ g_data_output_stream_put_int32 (data_output_stream,
+ TRACKER_STEROIDS_RC_DONE,
+ NULL,
+ &loop_error);
+ }
+
+ /* Will force flushing */
+ g_object_unref (data_output_stream);
+ g_object_unref (output_stream);
+
+ if (loop_error) {
+ ptr->error = loop_error;
+ }
+
+ g_free (column_sizes);
+ g_free (column_offsets);
+ g_free (column_data);
+
+ return ptr;
+}
+
+static void
+tracker_steroids_query (TrackerSteroids *steroids,
+ DBusConnection *connection,
+ DBusMessage *message)
+{
+ ClientInfo *info;
+ guint request_id;
+ const gchar *sender;
+ DBusMessage *reply;
+ DBusError dbus_error;
+ gchar *query;
+
+ if (g_strcmp0 (dbus_message_get_signature (message), DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_UNIX_FD_AS_STRING)) {
+ reply = dbus_message_new_error_printf (message,
+ DBUS_ERROR_UNKNOWN_METHOD_NAME,
+ DBUS_ERROR_UNKNOWN_METHOD_MESSAGE,
+ "Query",
+ dbus_message_get_signature (message),
+ dbus_message_get_interface (message));
+ dbus_connection_send (connection, reply, NULL);
+ dbus_message_unref (reply);
+ return;
+ }
+
+ request_id = tracker_dbus_get_next_request_id ();
+
+ tracker_dbus_request_new (request_id,
+ NULL,
+ "%s()",
+ __FUNCTION__);
+
+ info = g_slice_new0 (ClientInfo);
+ info->parent = steroids;
+ info->connection = dbus_connection_ref (connection);
+ info->call_message = dbus_message_ref (message);
+ info->request_id = request_id;
+
+ dbus_error_init (&dbus_error);
+
+ dbus_message_get_args (message,
+ &dbus_error,
+ DBUS_TYPE_STRING, &query,
+ DBUS_TYPE_UNIX_FD, &info->fd,
+ DBUS_TYPE_INVALID);
+
+ sender = dbus_message_get_sender (message);
+
+ tracker_store_sparql_query (query, TRACKER_STORE_PRIORITY_HIGH,
+ query_inthread, query_callback, sender,
+ info, destroy_client_info);
+}
+
+static void
+tracker_steroids_update (TrackerSteroids *steroids,
+ DBusConnection *connection,
+ DBusMessage *message,
+ gboolean batch,
+ gboolean update_blank)
+{
+ DBusError dbus_error;
+ ClientInfo *info;
+ GInputStream *input_stream;
+ GDataInputStream *data_input_stream;
+ GError *error = NULL;
+ gsize bytes_read;
+ guint request_id;
+ const gchar *sender;
+ int query_size;
+ DBusMessage *reply;
+ gchar *query;
+
+ if (g_strcmp0 (dbus_message_get_signature (message), DBUS_TYPE_UNIX_FD_AS_STRING)) {
+ reply = dbus_message_new_error_printf (message,
+ DBUS_ERROR_UNKNOWN_METHOD_NAME,
+ DBUS_ERROR_UNKNOWN_METHOD_MESSAGE,
+ "Update",
+ dbus_message_get_signature (message),
+ dbus_message_get_interface (message));
+ dbus_connection_send (connection, reply, NULL);
+ dbus_message_unref (reply);
+ return;
+ }
+
+ request_id = tracker_dbus_get_next_request_id ();
+
+ tracker_dbus_request_new (request_id,
+ NULL,
+ "%s()",
+ __FUNCTION__);
+
+ info = g_slice_new0 (ClientInfo);
+ info->parent = steroids;
+ info->connection = dbus_connection_ref (connection);
+ info->call_message = dbus_message_ref (message);
+
+ dbus_error_init (&dbus_error);
+
+ dbus_message_get_args (message,
+ &dbus_error,
+ DBUS_TYPE_UNIX_FD, &info->fd,
+ DBUS_TYPE_INVALID);
+
+ info->request_id = request_id;
+
+ sender = dbus_message_get_sender (message);
+
+ input_stream = g_buffered_input_stream_new_sized (g_unix_input_stream_new (info->fd, TRUE),
+ TRACKER_STEROIDS_BUFFER_SIZE);
+ data_input_stream = g_data_input_stream_new (input_stream);
+
+ query_size = g_data_input_stream_read_int32 (data_input_stream,
+ NULL,
+ &error);
+
+ if (error) {
+ reply = dbus_message_new_error (info->call_message,
+ TRACKER_STEROIDS_INTERFACE ".UpdateError",
+ error->message);
+ dbus_connection_send (connection, reply, NULL);
+ dbus_message_unref (reply);
+
+ g_object_unref (data_input_stream);
+ g_object_unref (input_stream);
+ g_error_free (error);
+ destroy_client_info (info);
+
+ return;
+ }
+
+ /* We malloc one more char to ensure string is 0 terminated */
+ query = g_malloc0 ((1 + query_size) * sizeof (char));
+
+ g_input_stream_read_all (input_stream,
+ query,
+ query_size,
+ &bytes_read,
+ NULL,
+ &error);
+
+ if (error) {
+ reply = dbus_message_new_error (info->call_message,
+ TRACKER_STEROIDS_INTERFACE ".UpdateError",
+ error->message);
+ dbus_connection_send (connection, reply, NULL);
+ dbus_message_unref (reply);
+
+ g_free (query);
+ g_object_unref (data_input_stream);
+ g_object_unref (input_stream);
+ g_error_free (error);
+ destroy_client_info (info);
+
+ return;
+ }
+
+ g_object_unref (data_input_stream);
+ g_object_unref (input_stream);
+
+ if (update_blank) {
+ tracker_store_sparql_update_blank (query, TRACKER_STORE_PRIORITY_HIGH,
+ update_blank_callback, sender,
+ info, destroy_client_info);
+ } else {
+ tracker_store_sparql_update (query,
+ batch ? TRACKER_STORE_PRIORITY_LOW : TRACKER_STORE_PRIORITY_HIGH,
+ FALSE,
+ update_callback, sender,
+ info, destroy_client_info);
+ }
+}
+
+DBusHandlerResult
+tracker_steroids_connection_filter (DBusConnection *connection,
+ DBusMessage *message,
+ void *user_data)
+{
+ TrackerSteroids *steroids = user_data;
+
+ g_return_val_if_fail (TRACKER_IS_STEROIDS (steroids), DBUS_HANDLER_RESULT_NOT_YET_HANDLED);
+
+ if (g_strcmp0 (TRACKER_STEROIDS_PATH, dbus_message_get_path (message))) {
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
+
+ if (g_strcmp0 (TRACKER_STEROIDS_INTERFACE, dbus_message_get_interface (message))) {
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
+
+ if (!g_strcmp0 ("Query", dbus_message_get_member (message))) {
+ tracker_steroids_query (steroids, connection, message);
+ return DBUS_HANDLER_RESULT_HANDLED;
+ }
+
+ if (!g_strcmp0 ("Update", dbus_message_get_member (message))) {
+ tracker_steroids_update (steroids, connection, message, FALSE, FALSE);
+ return DBUS_HANDLER_RESULT_HANDLED;
+ }
+
+ if (!g_strcmp0 ("UpdateBlank", dbus_message_get_member (message))) {
+ tracker_steroids_update (steroids, connection, message, FALSE, TRUE);
+ return DBUS_HANDLER_RESULT_HANDLED;
+ }
+
+ if (!g_strcmp0 ("BatchUpdate", dbus_message_get_member (message))) {
+ tracker_steroids_update (steroids, connection, message, TRUE, FALSE);
+ return DBUS_HANDLER_RESULT_HANDLED;
+ }
+
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+static void
+tracker_steroids_finalize (GObject *object)
+{
+ TrackerSteroidsPrivate *priv = TRACKER_STEROIDS_GET_PRIVATE (object);
+
+ g_hash_table_unref (priv->clients);
+}
diff --git a/src/tracker-store/tracker-steroids.h b/src/tracker-store/tracker-steroids.h
new file mode 100644
index 0000000..5191fab
--- /dev/null
+++ b/src/tracker-store/tracker-steroids.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2010, Codeminded BVBA <abustany gnome org>
+ *
+ * This library 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.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __TRACKER_STEROIDS_H__
+#define __TRACKER_STEROIDS_H__
+
+#include <glib-object.h>
+
+#define TRACKER_STEROIDS_SERVICE "org.freedesktop.Tracker1"
+#define TRACKER_STEROIDS_PATH "/org/freedesktop/Tracker1/Steroids"
+#define TRACKER_STEROIDS_INTERFACE "org.freedesktop.Tracker1.Steroids"
+
+G_BEGIN_DECLS
+
+#define TRACKER_TYPE_STEROIDS (tracker_steroids_get_type ())
+#define TRACKER_STEROIDS(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), TRACKER_TYPE_STEROIDS, TrackerSteroids))
+#define TRACKER_STEROIDS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TRACKER_TYPE_DBUS_STEROIDS, TrackerSteroidsClass))
+#define TRACKER_IS_STEROIDS(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), TRACKER_TYPE_STEROIDS))
+#define TRACKER_IS_STEROIDS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TRACKER_TYPE_STEROIDS))
+#define TRACKER_STEROIDS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TRACKER_TYPE_STEROIDS, TrackerSteroidsClass))
+
+#define TRACKER_STEROIDS_BUFFER_SIZE 65536
+
+#define TRACKER_STEROIDS_RC_ERROR 0
+#define TRACKER_STEROIDS_RC_ROW 1
+#define TRACKER_STEROIDS_RC_DONE 2
+#define TRACKER_STEROIDS_RC_LARGEROW 3
+
+#define TRACKER_STEROIDS_EOP 0xFF
+
+typedef struct TrackerSteroids TrackerSteroids;
+typedef struct TrackerSteroidsClass TrackerSteroidsClass;
+
+struct TrackerSteroids {
+ GObject parent;
+};
+
+struct TrackerSteroidsClass {
+ GObjectClass parent;
+};
+
+GType tracker_steroids_get_type (void) G_GNUC_CONST;
+TrackerSteroids* tracker_steroids_new (void);
+DBusHandlerResult
+ tracker_steroids_connection_filter (DBusConnection *connection,
+ DBusMessage *message,
+ void *user_data);
+
+#endif /* __TRACKER_STEROIDS_H__ */
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