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gstreamer/gst/gstregistryxml.c
Jan Schmidt 5b6611acdd gst/gstregistryxml.c: Allow empty strings for some of the plugin fields so we don't drop valid plugin entries that we... 
Original commit message from CVS:
* gst/gstregistryxml.c: (read_string), (load_pad_template),
(load_feature), (load_plugin):
Allow empty strings for some of the plugin fields so we don't
drop valid plugin entries that were written out correctly.
2006-05-17 14:01:33 +00:00

902 lines
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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-private.h"
#include <glib/gstdio.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_save (GstRegistry * registry, gchar * format, ...)
{
va_list var_args;
size_t written, len;
gboolean ret;
char *str;
va_start (var_args, format);
str = g_strdup_vprintf (format, var_args);
va_end (var_args);
len = strlen (str);
written = write (registry->cache_file, str, len);
if (len == written)
ret = TRUE;
else {
ret = FALSE;
GST_ERROR ("Failed to write registry to temporary file: %s",
g_strerror (errno));
}
g_free (str);
return ret;
}
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, gboolean allow_blank)
{
int depth = xmlTextReaderDepth (reader);
gboolean found = FALSE;
while (xmlTextReaderRead (reader) == 1) {
if (xmlTextReaderDepth (reader) == depth) {
if (allow_blank && !found &&
xmlTextReaderNodeType (reader) == XML_READER_TYPE_END_ELEMENT) {
/* Allow blank strings */
*write_to = g_strdup ("");
found = TRUE;
}
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, FALSE);
} 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, FALSE);
}
}
}
g_free (name);
g_free (caps_str);
return NULL;
}
static GstPluginFeature *
load_feature (xmlTextReaderPtr reader)
{
int ret;
int depth;
gchar *feature_name;
GstPluginFeature *feature;
GType type;
depth = xmlTextReaderDepth (reader);
feature_name =
(gchar *) xmlTextReaderGetAttribute (reader, BAD_CAST "typename");
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)) {
/* don't really know what it is */
if (GST_IS_OBJECT (feature))
gst_object_unref (feature);
else
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, FALSE);
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, TRUE);
GST_DEBUG ("longname ret=%d, name=%s",
ret, factory->details.longname);
} else if (g_str_equal (tag, "class")) {
read_string (reader, &factory->details.klass, TRUE);
} else if (g_str_equal (tag, "description")) {
read_string (reader, &factory->details.description, TRUE);
} else if (g_str_equal (tag, "author")) {
read_string (reader, &factory->details.author, TRUE);
} else if (g_str_equal (tag, "uri_type")) {
gchar *s = NULL;
if (read_string (reader, &s, FALSE)) {
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, FALSE))
add_to_char_array (&factory->uri_protocols, s);
} else if (g_str_equal (tag, "interface")) {
gchar *s = NULL;
if (read_string (reader, &s, FALSE)) {
__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, TRUE))
add_to_char_array (&factory->extensions, s);
} else if (g_str_equal (tag, "caps")) {
gchar *s = NULL;
if (read_string (reader, &s, FALSE)) {
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, TRUE);
}
}
}
GST_WARNING ("Error reading feature from registry: registry corrupt?");
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, FALSE);
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, TRUE)) {
GST_DEBUG ("description field was invalid in registry");
break;
}
GST_DEBUG ("description %s", plugin->desc.description);
} else if (g_str_equal (tag, "filename")) {
if (!read_string (reader, &plugin->filename, FALSE)) {
GST_DEBUG ("filename field was invalid in registry");
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, TRUE)) {
GST_DEBUG ("version field was invalid in registry");
break;
}
GST_DEBUG ("version %s", plugin->desc.version);
} else if (g_str_equal (tag, "license")) {
if (!read_string (reader, &plugin->desc.license, TRUE)) {
GST_DEBUG ("license field was invalid in registry");
break;
}
GST_DEBUG ("license %s", plugin->desc.license);
} else if (g_str_equal (tag, "source")) {
if (!read_string (reader, &plugin->desc.source, TRUE)) {
GST_DEBUG ("source field was invalid in registry");
break;
}
GST_DEBUG ("source %s", plugin->desc.source);
} else if (g_str_equal (tag, "package")) {
if (!read_string (reader, &plugin->desc.package, TRUE)) {
GST_DEBUG ("package field was invalid in registry");
break;
}
GST_DEBUG ("package %s", plugin->desc.package);
} else if (g_str_equal (tag, "origin")) {
if (!read_string (reader, &plugin->desc.origin, TRUE)) {
GST_DEBUG ("failed to read origin");
break;
}
} else if (g_str_equal (tag, "m32p")) {
char *s;
if (!read_string (reader, &s, FALSE)) {
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);
if (feature) {
feature->plugin_name = g_strdup (plugin->desc.name);
*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;
}
/**
* gst_registry_xml_read_cache:
* @registry: a #GstRegistry
* @location: a filename
*
* Read the contents of the XML cache file at location
* @location into @registry.
*
* Returns: TRUE on success.
*/
gboolean
gst_registry_xml_read_cache (GstRegistry * registry, const char *location)
{
GMappedFile *mapped = NULL;
GTimer *timer;
gdouble seconds;
xmlTextReaderPtr reader = NULL;
int ret;
gboolean in_registry = FALSE;
FILE *file = NULL;
/* make sure these types exist */
GST_TYPE_ELEMENT_FACTORY;
GST_TYPE_TYPE_FIND_FACTORY;
GST_TYPE_INDEX_FACTORY;
timer = g_timer_new ();
mapped = g_mapped_file_new (location, FALSE, NULL);
if (mapped) {
reader = xmlReaderForMemory (g_mapped_file_get_contents (mapped),
g_mapped_file_get_length (mapped), NULL, NULL, 0);
if (reader == NULL) {
g_mapped_file_free (mapped);
mapped = NULL;
}
}
if (reader == NULL) {
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);
if (mapped)
g_mapped_file_free (mapped);
if (file)
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);
if (mapped)
g_mapped_file_free (mapped);
if (file)
fclose (file);
return TRUE;
}
/*
* Save
*/
static gboolean
gst_registry_save_escaped (GstRegistry * registry, char *prefix, char *tag,
char *value)
{
gboolean ret = TRUE;
if (value) {
gchar *v = g_markup_escape_text (value, strlen (value));
ret = gst_registry_save (registry, "%s<%s>%s</%s>\n", prefix, tag, v, tag);
g_free (v);
}
return ret;
}
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);
gboolean ret;
gst_caps_do_simplify (copy);
s = gst_caps_to_string (copy);
gst_caps_unref (copy);
ret = gst_registry_save_escaped (registry, " ", "caps", s);
g_free (s);
return ret;
}
static gboolean
gst_registry_xml_save_pad_template (GstRegistry * registry,
GstStaticPadTemplate * template)
{
gchar *presence;
if (!gst_registry_save_escaped (registry, " ", "nametemplate",
template->name_template))
return FALSE;
if (!gst_registry_save (registry,
" <direction>%s</direction>\n",
(template->direction == GST_PAD_SINK ? "sink" : "src")))
return FALSE;
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;
}
if (!gst_registry_save (registry, " <presence>%s</presence>\n", presence))
return FALSE;
if (template->static_caps.string) {
if (!gst_registry_save (registry, " <caps>%s</caps>\n",
template->static_caps.string))
return FALSE;
}
return TRUE;
}
static gboolean
gst_registry_xml_save_feature (GstRegistry * registry,
GstPluginFeature * feature)
{
if (!gst_registry_save_escaped (registry, " ", "name", feature->name))
return FALSE;
if (feature->rank > 0) {
gint rank = feature->rank;
if (!gst_registry_save (registry, " <rank>%d</rank>\n", rank))
return FALSE;
}
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY (feature);
GList *walk;
if (!gst_registry_save_escaped (registry, " ", "longname",
factory->details.longname))
return FALSE;
if (!gst_registry_save_escaped (registry, " ", "class",
factory->details.klass))
return FALSE;
if (!gst_registry_save_escaped (registry, " ", "description",
factory->details.description))
return FALSE;
if (!gst_registry_save_escaped (registry, " ", "author",
factory->details.author))
return FALSE;
walk = factory->staticpadtemplates;
while (walk) {
GstStaticPadTemplate *template = walk->data;
if (!gst_registry_save (registry, " <padtemplate>\n"))
return FALSE;
if (!gst_registry_xml_save_pad_template (registry, template))
return FALSE;
if (!gst_registry_save (registry, " </padtemplate>\n"))
return FALSE;
walk = g_list_next (walk);
}
walk = factory->interfaces;
while (walk) {
if (!gst_registry_save_escaped (registry, " ", "interface",
(gchar *) walk->data))
return FALSE;
walk = g_list_next (walk);
}
if (GST_URI_TYPE_IS_VALID (factory->uri_type)) {
gchar **protocol;
if (!gst_registry_save_escaped (registry, " ", "uri_type",
factory->uri_type == GST_URI_SINK ? "sink" : "source"))
return FALSE;
g_assert (factory->uri_protocols);
protocol = factory->uri_protocols;
while (*protocol) {
if (!gst_registry_save_escaped (registry, " ", "uri_protocol",
*protocol))
return FALSE;
protocol++;
}
}
} else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
GstTypeFindFactory *factory = GST_TYPE_FIND_FACTORY (feature);
gint i = 0;
if (factory->caps) {
if (!gst_registry_xml_save_caps (registry, factory->caps))
return FALSE;
}
if (factory->extensions) {
while (factory->extensions[i]) {
if (!gst_registry_save_escaped (registry, " ", "extension",
factory->extensions[i]))
return FALSE;
i++;
}
}
} else if (GST_IS_INDEX_FACTORY (feature)) {
if (!gst_registry_save_escaped (registry, " ", "longdesc",
GST_INDEX_FACTORY (feature)->longdesc))
return FALSE;
}
return TRUE;
}
static gboolean
gst_registry_xml_save_plugin (GstRegistry * registry, GstPlugin * plugin)
{
GList *list;
GList *walk;
char s[100];
if (!gst_registry_save_escaped (registry, " ", "name", plugin->desc.name))
return FALSE;
if (!gst_registry_save_escaped (registry, " ", "description",
plugin->desc.description))
return FALSE;
if (!gst_registry_save_escaped (registry, " ", "filename", plugin->filename))
return FALSE;
sprintf (s, "%d", (int) plugin->file_size);
if (!gst_registry_save_escaped (registry, " ", "size", s))
return FALSE;
sprintf (s, "%d", (int) plugin->file_mtime);
if (!gst_registry_save_escaped (registry, " ", "m32p", s))
return FALSE;
if (!gst_registry_save_escaped (registry, " ", "version",
plugin->desc.version))
return FALSE;
if (!gst_registry_save_escaped (registry, " ", "license",
plugin->desc.license))
return FALSE;
if (!gst_registry_save_escaped (registry, " ", "source", plugin->desc.source))
return FALSE;
if (!gst_registry_save_escaped (registry, " ", "package",
plugin->desc.package))
return FALSE;
if (!gst_registry_save_escaped (registry, " ", "origin", plugin->desc.origin))
return FALSE;
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);
if (!gst_registry_save (registry,
" <feature typename=\"%s\">\n",
g_type_name (G_OBJECT_TYPE (feature))))
goto fail;
if (!gst_registry_xml_save_feature (registry, feature))
goto fail;
if (!gst_registry_save (registry, " </feature>\n"))
goto fail;
}
gst_plugin_feature_list_free (list);
return TRUE;
fail:
gst_plugin_feature_list_free (list);
return FALSE;
}
/**
* gst_registry_xml_write_cache:
* @registry: a #GstRegistry
* @location: a filename
*
* Write @registry in an XML format at the location given by
* @location. Directories are automatically created.
*
* Returns: TRUE on success.
*/
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, ".tmpXXXXXX", NULL);
registry->cache_file = g_mkstemp (tmp_location);
if (registry->cache_file == -1) {
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 = g_mkstemp (tmp_location);
}
if (registry->cache_file == -1) {
g_free (tmp_location);
return FALSE;
}
if (!gst_registry_save (registry, "<?xml version=\"1.0\"?>\n"))
goto fail;
if (!gst_registry_save (registry, "<GST-PluginRegistry>\n"))
goto fail;
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;
}
}
if (!gst_registry_save (registry, "<plugin>\n"))
goto fail;
if (!gst_registry_xml_save_plugin (registry, plugin))
goto fail;
if (!gst_registry_save (registry, "</plugin>\n"))
goto fail;
}
if (!gst_registry_save (registry, "</GST-PluginRegistry>\n"))
goto fail;
close (registry->cache_file);
if (g_file_test (tmp_location, G_FILE_TEST_EXISTS)) {
#ifdef WIN32
g_remove (location);
#endif
g_rename (tmp_location, location);
}
g_free (tmp_location);
return TRUE;
fail:
close (registry->cache_file);
g_free (tmp_location);
return FALSE;
}
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