gstreamer/gst/gstregistryxml.c

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
* 2005 David A. Schleef <ds@schleef.org>
*
* gstregistryxml.c: GstRegistry object, support routines
*
* This library is free software; you can redistribute it and/or
* modify it ulnder the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <fcntl.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <gst/gst_private.h>
#include <gst/gstelement.h>
#include <gst/gsttypefind.h>
#include <gst/gsttypefindfactory.h>
#include <gst/gsturi.h>
#include <gst/gstinfo.h>
#include <gst/gstenumtypes.h>
#include <gst/gstregistry.h>
#include <libxml/xmlreader.h>
#include "glib-compat.h"
#define BLOCK_SIZE 1024*10
#define GST_CAT_DEFAULT GST_CAT_REGISTRY
#define CLASS(registry) GST_XML_REGISTRY_CLASS (G_OBJECT_GET_CLASS (registry))
//static gboolean gst_registry_xml_load (GstRegistry * registry);
//static gboolean gst_registry_xml_save (GstRegistry * registry);
//static gboolean gst_registry_xml_rebuild (GstRegistry * registry);
#if 0
static void
gst_registry_xml_class_init (GstRegistryClass * klass)
{
GObjectClass *gobject_class;
GstRegistryClass *gstregistry_class;
GstRegistryClass *gstxmlregistry_class;
gobject_class = (GObjectClass *) klass;
gstregistry_class = (GstRegistryClass *) klass;
gstxmlregistry_class = (GstRegistryClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_REGISTRY);
gobject_class->get_property =
GST_DEBUG_FUNCPTR (gst_registry_xml_get_property);
gobject_class->set_property =
GST_DEBUG_FUNCPTR (gst_registry_xml_set_property);
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_LOCATION,
g_param_spec_string ("location", "Location",
"Location of the registry file", NULL, G_PARAM_READWRITE));
gstregistry_class->load = GST_DEBUG_FUNCPTR (gst_registry_xml_load);
gstregistry_class->save = GST_DEBUG_FUNCPTR (gst_registry_xml_save);
gstregistry_class->rebuild = GST_DEBUG_FUNCPTR (gst_registry_xml_rebuild);
gstregistry_class->load_plugin =
GST_DEBUG_FUNCPTR (gst_registry_xml_load_plugin);
gstxmlregistry_class->get_perms_func =
GST_DEBUG_FUNCPTR (gst_registry_xml_get_perms_func);
gstxmlregistry_class->open_func =
GST_DEBUG_FUNCPTR (gst_registry_xml_open_func);
gstxmlregistry_class->load_func =
GST_DEBUG_FUNCPTR (gst_registry_xml_load_func);
}
static void
gst_registry_xml_init (GstRegistry * registry)
{
registry->location = NULL;
}
#endif
/* this function returns the biggest of the path's mtime and ctime
* mtime is updated through an actual write (data)
* ctime is updated through changing inode information
* so this function returns the last time *anything* changed to this path
* it also sets the given boolean to TRUE if the given path is a directory
*/
#if 0
static time_t
get_time (const char *path, gboolean * is_dir)
{
struct stat statbuf;
if (stat (path, &statbuf)) {
*is_dir = FALSE;
return 0;
}
if (is_dir)
*is_dir = S_ISDIR (statbuf.st_mode);
if (statbuf.st_mtime > statbuf.st_ctime)
return statbuf.st_mtime;
return statbuf.st_ctime;
}
#endif
#if 0
static void
gst_registry_xml_get_perms_func (GstRegistry * registry)
{
gchar *dirname;
/* if the dir does not exist, make it. if that can't be done, flags = 0x0.
if the file can be appended to, it's writable. if it can then be read,
it's readable.
After that check if it exists. */
if (make_dir (registry->location) != TRUE) {
/* we can't do anything with it, leave flags as 0x0 */
return;
}
dirname = g_path_get_dirname (registry->location);
if (g_file_test (registry->location, G_FILE_TEST_EXISTS)) {
GST_REGISTRY (registry)->flags |= GST_REGISTRY_EXISTS;
}
if (!access (dirname, W_OK)) {
GST_REGISTRY (registry)->flags |= GST_REGISTRY_WRITABLE;
}
if (!access (dirname, R_OK)) {
GST_REGISTRY (registry)->flags |= GST_REGISTRY_READABLE;
}
g_free (dirname);
}
#endif
#if 0
/* return TRUE iff regtime is more recent than the times of all the .so files
* in the plugin dirs; ie return TRUE if this path does not need to trigger
* a rebuild of registry
*
* - if it's a directory, recurse on subdirs
* - if it's a file
* - if entry is not newer, return TRUE.
* - if it's newer
* - and it's a plugin, return FALSE
* - otherwise return TRUE
*/
static gboolean
plugin_times_older_than_recurse (gchar * path, time_t regtime)
{
DIR *dir;
struct dirent *dirent;
gboolean is_dir;
gchar *new_path;
time_t pathtime = get_time (path, &is_dir);
if (is_dir) {
dir = opendir (path);
if (dir) {
while ((dirent = readdir (dir))) {
/* don't want to recurse in place or backwards */
if (strcmp (dirent->d_name, ".") && strcmp (dirent->d_name, "..")) {
new_path = g_build_filename (path, dirent->d_name, NULL);
if (!plugin_times_older_than_recurse (new_path, regtime)) {
GST_CAT_INFO (GST_CAT_PLUGIN_LOADING,
"path %s is more recent than registry time of %ld",
new_path, (long) regtime);
g_free (new_path);
closedir (dir);
return FALSE;
}
g_free (new_path);
}
}
closedir (dir);
}
return TRUE;
}
/* it's a file */
if (pathtime <= regtime) {
return TRUE;
}
/* it's a file, and it's more recent */
if (g_str_has_suffix (path, ".so") || g_str_has_suffix (path, ".dll")) {
if (!gst_plugin_check_file (path, NULL))
return TRUE;
/* it's a newer GStreamer plugin */
GST_CAT_INFO (GST_CAT_PLUGIN_LOADING,
"%s looks like a plugin and is more recent than registry time of %ld",
path, (long) regtime);
return FALSE;
}
return TRUE;
}
#endif
#if 0
/* return TRUE iff regtime is more recent than the times of all the .so files
* in the plugin dirs; ie return TRUE if registry is up to date.
*/
static gboolean
plugin_times_older_than (GList * paths, time_t regtime)
{
while (paths) {
GST_CAT_LOG (GST_CAT_PLUGIN_LOADING,
"comparing plugin times from %s with %ld",
(gchar *) paths->data, (long) regtime);
if (!plugin_times_older_than_recurse (paths->data, regtime))
return FALSE;
paths = g_list_next (paths);
}
GST_CAT_LOG (GST_CAT_PLUGIN_LOADING,
"everything's fine, no registry rebuild needed.");
return TRUE;
}
#endif
#if 0
static gboolean
gst_registry_xml_open_func (GstRegistry * registry, GstRegistryMode mode)
{
GstRegistry *gst_registry;
GList *paths;
gst_registry = GST_REGISTRY (registry);
paths = gst_registry->paths;
GST_CAT_DEBUG (GST_CAT_GST_INIT, "opening registry %s", registry->location);
g_return_val_if_fail (registry->open == FALSE, FALSE);
/* if it doesn't exist, first try to build it, and check if it worked
* if it's not readable, return false
* if it's out of date, rebuild it */
if (mode == GST_XML_REGISTRY_READ) {
if (!(gst_registry->flags & GST_REGISTRY_EXISTS)) {
/* if it's not writable, then don't bother */
if (!(gst_registry->flags & GST_REGISTRY_WRITABLE)) {
GST_CAT_INFO (GST_CAT_GST_INIT, "Registry isn't writable");
return FALSE;
}
GST_CAT_INFO (GST_CAT_GST_INIT,
"Registry doesn't exist, trying to build...");
gst_registry_rebuild (gst_registry);
gst_registry_save (gst_registry);
/* FIXME: verify that the flags actually get updated ! */
if (!(gst_registry->flags & GST_REGISTRY_EXISTS)) {
return FALSE;
}
}
/* at this point we know it exists */
g_return_val_if_fail (gst_registry->flags & GST_REGISTRY_READABLE, FALSE);
if (!plugin_times_older_than (paths, get_time (registry->location, NULL))) {
if (gst_registry->flags & GST_REGISTRY_WRITABLE) {
GST_CAT_INFO (GST_CAT_GST_INIT, "Registry out of date, rebuilding...");
gst_registry_rebuild (gst_registry);
gst_registry_save (gst_registry);
if (!plugin_times_older_than (paths, get_time (registry->location,
NULL))) {
GST_CAT_INFO (GST_CAT_GST_INIT,
"Registry still out of date, something is wrong...");
return FALSE;
}
} else {
GST_CAT_INFO (GST_CAT_GST_INIT,
"Can't write to this registry and it's out of date, ignoring it");
return FALSE;
}
}
GST_CAT_DEBUG (GST_CAT_GST_INIT, "opening registry %s for reading",
registry->location);
registry->cache_file = fopen (registry->location, "r");
} else if (mode == GST_XML_REGISTRY_WRITE) {
char *tmploc;
int fd;
g_return_val_if_fail (gst_registry->flags & GST_REGISTRY_WRITABLE, FALSE);
tmploc = g_strconcat (registry->location, ".tmp", NULL);
GST_CAT_DEBUG (GST_CAT_GST_INIT, "opening registry %s for writing", tmploc);
if ((fd = open (tmploc, O_WRONLY | O_CREAT, 0644)) < 0) {
g_free (tmploc);
return FALSE;
}
g_free (tmploc);
registry->cache_file = fdopen (fd, "w");
}
if (!registry->cache_file)
return FALSE;
registry->open = TRUE;
return TRUE;
}
#endif
static gboolean
gst_registry_xml_save (GstRegistry * registry, gchar * format, ...)
{
va_list var_args;
va_start (var_args, format);
vfprintf (registry->cache_file, format, var_args);
va_end (var_args);
return TRUE;
}
static void
add_to_char_array (gchar *** array, gchar * value)
{
gchar **new;
gchar **old = *array;
gint i = 0;
/* expensive, but cycles are cheap... */
if (old)
while (old[i])
i++;
new = g_new0 (gchar *, i + 2);
new[i] = value;
while (i > 0) {
i--;
new[i] = old[i];
}
g_free (old);
*array = new;
}
/* read a string and copy it into the given location */
static gboolean
read_string (xmlTextReaderPtr reader, gchar ** write_to)
{
int depth = xmlTextReaderDepth (reader);
gboolean found = FALSE;
while (xmlTextReaderRead (reader) == 1) {
if (xmlTextReaderDepth (reader) == depth)
return found;
if (xmlTextReaderNodeType (reader) == XML_READER_TYPE_TEXT) {
if (found)
return FALSE;
*write_to = g_strdup ((gchar *) xmlTextReaderConstValue (reader));
found = TRUE;
}
}
return FALSE;
}
static gboolean
read_uint (xmlTextReaderPtr reader, guint * write_to)
{
int depth = xmlTextReaderDepth (reader);
gboolean found = FALSE;
while (xmlTextReaderRead (reader) == 1) {
if (xmlTextReaderDepth (reader) == depth)
return found;
if (xmlTextReaderNodeType (reader) == XML_READER_TYPE_TEXT) {
gchar *ret;
const gchar *s;
if (found) {
GST_DEBUG ("failed to read uint, multiple text nodes");
return FALSE;
}
s = (const gchar *) xmlTextReaderConstValue (reader);
*write_to = strtol (s, &ret, 0);
if (s == ret) {
GST_DEBUG ("failed to read uint, text didn't convert to int");
return FALSE;
}
found = TRUE;
}
}
GST_DEBUG ("failed to read uint, no text node");
return FALSE;
}
static gboolean
read_enum (xmlTextReaderPtr reader, GType enum_type, guint * write_to)
{
int depth = xmlTextReaderDepth (reader);
gboolean found = FALSE;
if (*write_to)
return FALSE;
while (xmlTextReaderRead (reader) == 1) {
if (xmlTextReaderDepth (reader) == depth)
return found;
if (xmlTextReaderNodeType (reader) == XML_READER_TYPE_TEXT) {
GEnumClass *enum_class;
GEnumValue *value;
if (found)
return FALSE;
enum_class = g_type_class_ref (enum_type);
if (!enum_class)
return FALSE;
value =
g_enum_get_value_by_nick (enum_class,
(gchar *) xmlTextReaderConstValue (reader));
if (value) {
*write_to = value->value;
found = TRUE;
}
g_type_class_unref (enum_class);
}
}
return FALSE;
}
static GstStaticPadTemplate *
load_pad_template (xmlTextReaderPtr reader)
{
int ret;
int depth = xmlTextReaderDepth (reader);
gchar *name = NULL, *caps_str = NULL;
guint direction = 0, presence = 0;
while ((ret = xmlTextReaderRead (reader)) == 1) {
if (xmlTextReaderDepth (reader) == depth) {
GstStaticPadTemplate *template;
template = g_new0 (GstStaticPadTemplate, 1);
template->name_template = name;
template->presence = presence;
template->direction = direction;
template->static_caps.string = caps_str;
return template;
}
if (xmlTextReaderNodeType (reader) == XML_READER_TYPE_ELEMENT &&
xmlTextReaderDepth (reader) == depth + 1) {
const gchar *tag = (gchar *) xmlTextReaderConstName (reader);
if (g_str_equal (tag, "nametemplate")) {
read_string (reader, &name);
} else if (g_str_equal (tag, "direction")) {
read_enum (reader, GST_TYPE_PAD_DIRECTION, &direction);
} else if (g_str_equal (tag, "presence")) {
read_enum (reader, GST_TYPE_PAD_PRESENCE, &presence);
} else if (!strncmp (tag, "caps", 4)) {
read_string (reader, &caps_str);
}
}
}
g_free (name);
g_free (caps_str);
return NULL;
}
static GstPluginFeature *
load_feature (xmlTextReaderPtr reader)
{
int ret;
int depth = xmlTextReaderDepth (reader);
gchar *feature_name =
(gchar *) xmlTextReaderGetAttribute (reader, BAD_CAST "typename");
GstPluginFeature *feature;
GType type;
GST_DEBUG ("loading feature");
if (!feature_name)
return NULL;
type = g_type_from_name (feature_name);
g_free (feature_name);
feature_name = NULL;
if (!type) {
return NULL;
}
feature = g_object_new (type, NULL);
if (!feature) {
return NULL;
}
if (!GST_IS_PLUGIN_FEATURE (feature)) {
g_object_unref (feature);
return NULL;
}
while ((ret = xmlTextReaderRead (reader)) == 1) {
if (xmlTextReaderDepth (reader) == depth) {
GST_DEBUG ("loaded feature %p with name %s", feature, feature->name);
return feature;
}
if (xmlTextReaderNodeType (reader) == XML_READER_TYPE_ELEMENT &&
xmlTextReaderDepth (reader) == depth + 1) {
const gchar *tag = (gchar *) xmlTextReaderConstName (reader);
if (g_str_equal (tag, "name"))
read_string (reader, &feature->name);
if (g_str_equal (tag, "rank"))
read_uint (reader, &feature->rank);
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY (feature);
if (g_str_equal (tag, "longname")) {
int ret;
ret = read_string (reader, &factory->details.longname);
GST_DEBUG ("longname ret=%d, name=%s",
ret, factory->details.longname);
} else if (g_str_equal (tag, "class")) {
read_string (reader, &factory->details.klass);
} else if (g_str_equal (tag, "description")) {
read_string (reader, &factory->details.description);
} else if (g_str_equal (tag, "author")) {
read_string (reader, &factory->details.author);
} else if (g_str_equal (tag, "uri_type")) {
gchar *s = NULL;
if (read_string (reader, &s)) {
if (g_ascii_strncasecmp (s, "sink", 4) == 0) {
factory->uri_type = GST_URI_SINK;
} else if (g_ascii_strncasecmp (s, "source", 5) == 0) {
factory->uri_type = GST_URI_SRC;
}
g_free (s);
}
} else if (g_str_equal (tag, "uri_protocol")) {
gchar *s = NULL;
if (read_string (reader, &s))
add_to_char_array (&factory->uri_protocols, s);
} else if (g_str_equal (tag, "interface")) {
gchar *s = NULL;
if (read_string (reader, &s)) {
__gst_element_factory_add_interface (factory, s);
/* add_interface strdup's s */
g_free (s);
}
} else if (g_str_equal (tag, "padtemplate")) {
GstStaticPadTemplate *template = load_pad_template (reader);
if (template) {
GST_LOG ("adding template %s to factory %s",
GST_STR_NULL (GST_PAD_TEMPLATE_NAME_TEMPLATE (template)),
GST_PLUGIN_FEATURE_NAME (feature));
__gst_element_factory_add_static_pad_template (factory, template);
}
}
} else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
GstTypeFindFactory *factory = GST_TYPE_FIND_FACTORY (feature);
if (g_str_equal (tag, "extension")) {
gchar *s = NULL;
if (read_string (reader, &s))
add_to_char_array (&factory->extensions, s);
} else if (g_str_equal (tag, "caps")) {
gchar *s = NULL;
if (read_string (reader, &s)) {
factory->caps = gst_caps_from_string (s);
g_free (s);
}
}
} else if (GST_IS_INDEX_FACTORY (feature)) {
GstIndexFactory *factory = GST_INDEX_FACTORY (feature);
if (g_str_equal (tag, "longdesc"))
read_string (reader, &factory->longdesc);
}
}
}
g_assert_not_reached ();
return NULL;
}
static GstPlugin *
load_plugin (xmlTextReaderPtr reader, GList ** feature_list)
{
int ret;
GstPlugin *plugin;
*feature_list = NULL;
GST_DEBUG ("creating new plugin and parsing");
plugin = g_object_new (GST_TYPE_PLUGIN, NULL);
plugin->flags |= GST_PLUGIN_FLAG_CACHED;
while ((ret = xmlTextReaderRead (reader)) == 1) {
if (xmlTextReaderDepth (reader) == 1) {
return plugin;
}
if (xmlTextReaderNodeType (reader) == XML_READER_TYPE_ELEMENT &&
xmlTextReaderDepth (reader) == 2) {
const gchar *tag = (gchar *) xmlTextReaderConstName (reader);
if (g_str_equal (tag, "name")) {
int ret;
ret = read_string (reader, &plugin->desc.name);
GST_DEBUG ("name ret=%d, name=%s", ret, plugin->desc.name);
if (!ret)
break;
} else if (g_str_equal (tag, "description")) {
if (!read_string (reader, &plugin->desc.description))
break;
GST_DEBUG ("description %s", plugin->desc.description);
} else if (g_str_equal (tag, "filename")) {
if (!read_string (reader, &plugin->filename))
break;
GST_DEBUG ("filename %s", plugin->filename);
plugin->basename = g_path_get_basename (plugin->filename);
} else if (g_str_equal (tag, "version")) {
if (!read_string (reader, &plugin->desc.version))
break;
GST_DEBUG ("version %s", plugin->desc.version);
} else if (g_str_equal (tag, "license")) {
if (!read_string (reader, &plugin->desc.license))
break;
GST_DEBUG ("license %s", plugin->desc.license);
} else if (g_str_equal (tag, "source")) {
if (!read_string (reader, &plugin->desc.source))
break;
GST_DEBUG ("source %s", plugin->desc.source);
} else if (g_str_equal (tag, "package")) {
if (!read_string (reader, &plugin->desc.package))
break;
GST_DEBUG ("package %s", plugin->desc.package);
} else if (g_str_equal (tag, "origin")) {
if (!read_string (reader, &plugin->desc.origin)) {
GST_DEBUG ("failed to read origin");
break;
}
} else if (g_str_equal (tag, "m32p")) {
char *s;
if (!read_string (reader, &s)) {
GST_DEBUG ("failed to read mtime");
break;
}
plugin->file_mtime = strtol (s, NULL, 0);
GST_DEBUG ("mtime %d", (int) plugin->file_mtime);
g_free (s);
} else if (g_str_equal (tag, "size")) {
unsigned int x;
if (read_uint (reader, &x)) {
plugin->file_size = x;
GST_DEBUG ("file_size %d", plugin->file_size);
} else {
GST_DEBUG ("failed to read size");
}
} else if (g_str_equal (tag, "feature")) {
GstPluginFeature *feature = load_feature (reader);
feature->plugin_name = g_strdup (plugin->desc.name);
if (feature) {
*feature_list = g_list_prepend (*feature_list, feature);
}
} else {
GST_DEBUG ("unknown tag %s", tag);
}
}
}
gst_object_unref (plugin);
GST_DEBUG ("problem reading plugin");
return NULL;
}
gboolean
gst_registry_xml_read_cache (GstRegistry * registry, const char *location)
{
GTimer *timer;
gdouble seconds;
xmlTextReaderPtr reader;
int ret;
gboolean in_registry = FALSE;
FILE *file;
/* make sure these types exist */
GST_TYPE_ELEMENT_FACTORY;
GST_TYPE_TYPE_FIND_FACTORY;
GST_TYPE_INDEX_FACTORY;
timer = g_timer_new ();
file = fopen (location, "r");
if (file == NULL) {
g_timer_destroy (timer);
return FALSE;
}
reader = xmlReaderForFd (fileno (file), NULL, NULL, 0);
if (!reader) {
fclose (file);
g_timer_destroy (timer);
return FALSE;
}
while ((ret = xmlTextReaderRead (reader)) == 1) {
if (xmlTextReaderDepth (reader) == 0) {
in_registry = xmlTextReaderNodeType (reader) == XML_READER_TYPE_ELEMENT &&
g_str_equal ("GST-PluginRegistry", xmlTextReaderConstName (reader));
} else if (in_registry) {
if (xmlTextReaderDepth (reader) == 1 &&
xmlTextReaderNodeType (reader) == XML_READER_TYPE_ELEMENT) {
const gchar *tag = (const gchar *) xmlTextReaderConstName (reader);
if (g_str_equal (tag, "plugin")) {
GList *feature_list;
GstPlugin *plugin = load_plugin (reader, &feature_list);
if (plugin) {
GList *g;
GST_DEBUG ("adding plugin %s", plugin->desc.name);
gst_registry_add_plugin (registry, plugin);
for (g = feature_list; g; g = g_list_next (g)) {
gst_registry_add_feature (registry, GST_PLUGIN_FEATURE (g->data));
}
g_list_free (feature_list);
}
}
}
}
}
xmlFreeTextReader (reader);
if (ret != 0) {
GST_ERROR ("parsing registry cache: %s", location);
fclose (file);
g_timer_destroy (timer);
return FALSE;
}
g_timer_stop (timer);
seconds = g_timer_elapsed (timer, NULL);
g_timer_destroy (timer);
GST_INFO ("loaded %s in %f seconds", location, seconds);
fclose (file);
return TRUE;
}
#if 0
static gboolean
gst_registry_xml_load_plugin (GstRegistry * registry, GstPlugin * plugin)
{
GError *error = NULL;
GstPlugin *loaded_plugin;
/* FIXME: add gerror support */
loaded_plugin = gst_plugin_load_file (plugin->filename, &error);
if (!plugin) {
if (error) {
g_warning ("could not load plugin %s: %s", plugin->desc.name,
error->message);
g_error_free (error);
}
return FALSE;
} else if (loaded_plugin != plugin) {
g_critical ("how to remove plugins?");
}
return TRUE;
}
#endif
/*
* Save
*/
#define PUT_ESCAPED(prefix,tag,value) \
G_STMT_START{ \
const gchar *toconv = value; \
if (toconv) { \
gchar *v = g_markup_escape_text (toconv, strlen (toconv)); \
gst_registry_xml_save (registry, prefix "<%s>%s</%s>\n", tag, v, tag); \
g_free (v); \
} \
}G_STMT_END
static gboolean
gst_registry_xml_save_caps (GstRegistry * registry, const GstCaps * caps)
{
/* we copy the caps here so we can simplify them before saving. This is a lot
* faster when loading them later on */
char *s;
GstCaps *copy = gst_caps_copy (caps);
gst_caps_do_simplify (copy);
s = gst_caps_to_string (copy);
gst_caps_unref (copy);
PUT_ESCAPED (" ", "caps", s);
g_free (s);
return TRUE;
}
static gboolean
gst_registry_xml_save_pad_template (GstRegistry * registry,
GstStaticPadTemplate * template)
{
gchar *presence;
PUT_ESCAPED (" ", "nametemplate", template->name_template);
gst_registry_xml_save (registry, " <direction>%s</direction>\n",
(template->direction == GST_PAD_SINK ? "sink" : "src"));
switch (template->presence) {
case GST_PAD_ALWAYS:
presence = "always";
break;
case GST_PAD_SOMETIMES:
presence = "sometimes";
break;
case GST_PAD_REQUEST:
presence = "request";
break;
default:
presence = "unknown";
break;
}
gst_registry_xml_save (registry, " <presence>%s</presence>\n", presence);
if (template->static_caps.string) {
gst_registry_xml_save (registry, " <caps>%s</caps>\n",
template->static_caps.string);
}
return TRUE;
}
static gboolean
gst_registry_xml_save_feature (GstRegistry * registry,
GstPluginFeature * feature)
{
PUT_ESCAPED (" ", "name", feature->name);
if (feature->rank > 0) {
gint rank = feature->rank;
gst_registry_xml_save (registry, " <rank>%d</rank>\n", rank);
}
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY (feature);
GList *walk;
PUT_ESCAPED (" ", "longname", factory->details.longname);
PUT_ESCAPED (" ", "class", factory->details.klass);
PUT_ESCAPED (" ", "description", factory->details.description);
PUT_ESCAPED (" ", "author", factory->details.author);
walk = factory->staticpadtemplates;
while (walk) {
GstStaticPadTemplate *template = walk->data;
gst_registry_xml_save (registry, " <padtemplate>\n");
gst_registry_xml_save_pad_template (registry, template);
gst_registry_xml_save (registry, " </padtemplate>\n");
walk = g_list_next (walk);
}
walk = factory->interfaces;
while (walk) {
PUT_ESCAPED (" ", "interface", (gchar *) walk->data);
walk = g_list_next (walk);
}
if (GST_URI_TYPE_IS_VALID (factory->uri_type)) {
gchar **protocol;
PUT_ESCAPED (" ", "uri_type",
factory->uri_type == GST_URI_SINK ? "sink" : "source");
g_assert (factory->uri_protocols);
protocol = factory->uri_protocols;
while (*protocol) {
PUT_ESCAPED (" ", "uri_protocol", *protocol);
protocol++;
}
}
} else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
GstTypeFindFactory *factory = GST_TYPE_FIND_FACTORY (feature);
gint i = 0;
if (factory->caps) {
gst_registry_xml_save_caps (registry, factory->caps);
}
if (factory->extensions) {
while (factory->extensions[i]) {
PUT_ESCAPED (" ", "extension", factory->extensions[i]);
i++;
}
}
} else if (GST_IS_INDEX_FACTORY (feature)) {
PUT_ESCAPED (" ", "longdesc", GST_INDEX_FACTORY (feature)->longdesc);
}
return TRUE;
}
static gboolean
gst_registry_xml_save_plugin (GstRegistry * registry, GstPlugin * plugin)
{
GList *list;
GList *walk;
char s[100];
PUT_ESCAPED (" ", "name", plugin->desc.name);
PUT_ESCAPED (" ", "description", plugin->desc.description);
PUT_ESCAPED (" ", "filename", plugin->filename);
sprintf (s, "%d", (int) plugin->file_size);
PUT_ESCAPED (" ", "size", s);
sprintf (s, "%d", (int) plugin->file_mtime);
PUT_ESCAPED (" ", "m32p", s);
PUT_ESCAPED (" ", "version", plugin->desc.version);
PUT_ESCAPED (" ", "license", plugin->desc.license);
PUT_ESCAPED (" ", "source", plugin->desc.source);
PUT_ESCAPED (" ", "package", plugin->desc.package);
PUT_ESCAPED (" ", "origin", plugin->desc.origin);
list = gst_registry_get_feature_list_by_plugin (registry, plugin->desc.name);
for (walk = list; walk; walk = g_list_next (walk)) {
GstPluginFeature *feature = GST_PLUGIN_FEATURE (walk->data);
gst_registry_xml_save (registry, " <feature typename=\"%s\">\n",
g_type_name (G_OBJECT_TYPE (feature)));
gst_registry_xml_save_feature (registry, feature);
gst_registry_xml_save (registry, " </feature>\n");
}
gst_plugin_feature_list_free (list);
return TRUE;
}
gboolean
gst_registry_xml_write_cache (GstRegistry * registry, const char *location)
{
GList *walk;
char *tmp_location;
g_return_val_if_fail (GST_IS_REGISTRY (registry), FALSE);
tmp_location = g_strconcat (location, ".tmp", NULL);
registry->cache_file = fopen (tmp_location, "w");
if (registry->cache_file == NULL) {
char *dir;
/* oops, I bet the directory doesn't exist */
dir = g_path_get_dirname (location);
g_mkdir_with_parents (dir, 0777);
g_free (dir);
registry->cache_file = fopen (tmp_location, "w");
}
if (registry->cache_file == NULL) {
return FALSE;
}
gst_registry_xml_save (registry, "<?xml version=\"1.0\"?>\n");
gst_registry_xml_save (registry, "<GST-PluginRegistry>\n");
for (walk = g_list_last (registry->plugins); walk;
walk = g_list_previous (walk)) {
GstPlugin *plugin = GST_PLUGIN (walk->data);
if (!plugin->filename)
continue;
if (plugin->flags & GST_PLUGIN_FLAG_CACHED) {
int ret;
struct stat statbuf;
ret = g_stat (plugin->filename, &statbuf);
if (ret < 0)
continue;
if (plugin->file_mtime != statbuf.st_mtime ||
plugin->file_size != statbuf.st_size) {
continue;
}
}
gst_registry_xml_save (registry, "<plugin>\n");
gst_registry_xml_save_plugin (registry, plugin);
gst_registry_xml_save (registry, "</plugin>\n");
}
gst_registry_xml_save (registry, "</GST-PluginRegistry>\n");
fclose (registry->cache_file);
if (g_file_test (tmp_location, G_FILE_TEST_EXISTS)) {
#ifdef WIN32
remove (location);
#endif
rename (tmp_location, location);
}
g_free (tmp_location);
return TRUE;
}
#if 0
static GList *
gst_registry_xml_rebuild_recurse (GstRegistry * registry,
const gchar * directory)
{
GList *ret = NULL;
gint dr_len, sf_len;
if (g_file_test (directory, G_FILE_TEST_IS_DIR)) {
GDir *dir = g_dir_open (directory, 0, NULL);
if (dir) {
const gchar *dirent;
while ((dirent = g_dir_read_name (dir))) {
gchar *dirname;
if (*dirent == '=') {
/* =build, =inst, etc. -- automake distcheck directories */
continue;
}
dirname = g_strjoin ("/", directory, dirent, NULL);
ret =
g_list_concat (ret, gst_registry_xml_rebuild_recurse (registry,
dirname));
g_free (dirname);
}
g_dir_close (dir);
}
} else {
dr_len = strlen (directory);
sf_len = strlen (G_MODULE_SUFFIX);
if (dr_len >= sf_len &&
strcmp (directory + dr_len - sf_len, G_MODULE_SUFFIX) == 0) {
ret = g_list_prepend (ret, g_strdup (directory));
}
}
return ret;
}
static gboolean
gst_registry_xml_rebuild (GstRegistry * registry)
{
GList *walk = NULL, *plugins = NULL, *prune = NULL;
GError *error = NULL;
guint length;
GstPlugin *plugin;
GstRegistry *registry = GST_XML_REGISTRY (registry);
walk = registry->paths;
while (walk) {
gchar *path = (gchar *) walk->data;
GST_CAT_INFO (GST_CAT_PLUGIN_LOADING,
"Rebuilding registry %p in directory %s...", registry, path);
plugins = g_list_concat (plugins,
gst_registry_xml_rebuild_recurse (registry, path));
walk = g_list_next (walk);
}
plugins = g_list_reverse (plugins);
do {
length = g_list_length (plugins);
walk = plugins;
while (walk) {
g_assert (walk->data);
plugin = gst_plugin_load_file ((gchar *) walk->data, NULL);
if (plugin) {
prune = g_list_prepend (prune, walk->data);
gst_registry_add_plugin (registry, plugin);
}
walk = g_list_next (walk);
}
walk = prune;
while (walk) {
plugins = g_list_remove (plugins, walk->data);
g_free (walk->data);
walk = g_list_next (walk);
}
g_list_free (prune);
prune = NULL;
} while (g_list_length (plugins) != length);
walk = plugins;
while (walk) {
if ((plugin = gst_plugin_load_file ((gchar *) walk->data, &error))) {
g_warning ("Bizarre behavior: plugin %s actually loaded",
(gchar *) walk->data);
gst_registry_add_plugin (registry, plugin);
} else {
GST_CAT_INFO (GST_CAT_PLUGIN_LOADING, "Plugin %s failed to load: %s",
(gchar *) walk->data, error->message);
g_free (walk->data);
g_error_free (error);
error = NULL;
}
walk = g_list_next (walk);
}
return TRUE;
}
#endif