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authorMax Kellermann <max@duempel.org>2012-06-13 22:07:15 +0200
committerMax Kellermann <max@duempel.org>2012-06-13 22:11:43 +0200
commit66ed427a571a9e224eed94790664b0612574bef9 (patch)
treeaff2b05ed7f7915c49ebddd47b872965d03e766d /src/update_container.c
parentc9e63e9fdbd9275243f8a71783a6eb792ba3ef6b (diff)
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update_walk: move code to update_container.c
Diffstat (limited to '')
-rw-r--r--src/update_container.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/src/update_container.c b/src/update_container.c
new file mode 100644
index 000000000..9fe4bb0a9
--- /dev/null
+++ b/src/update_container.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2003-2012 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h" /* must be first for large file support */
+#include "update_container.h"
+#include "update_internal.h"
+#include "update_db.h"
+#include "db_lock.h"
+#include "directory.h"
+#include "song.h"
+#include "mapper.h"
+#include "glib_compat.h"
+#include "decoder_plugin.h"
+#include "tag.h"
+#include "tag_handler.h"
+
+#include <glib.h>
+
+/**
+ * Create the specified directory object if it does not exist already
+ * or if the #stat object indicates that it has been modified since
+ * the last update. Returns NULL when it exists already and is
+ * unmodified.
+ *
+ * The caller must lock the database.
+ */
+static struct directory *
+make_directory_if_modified(struct directory *parent, const char *name,
+ const struct stat *st)
+{
+ struct directory *directory = directory_get_child(parent, name);
+
+ // directory exists already
+ if (directory != NULL) {
+ if (directory->mtime == st->st_mtime && !walk_discard) {
+ /* not modified */
+ db_unlock();
+ return NULL;
+ }
+
+ delete_directory(directory);
+ modified = true;
+ }
+
+ directory = directory_make_child(parent, name);
+ directory->mtime = st->st_mtime;
+ return directory;
+}
+
+bool
+update_container_file(struct directory *directory,
+ const char *name,
+ const struct stat *st,
+ const struct decoder_plugin *plugin)
+{
+ if (plugin->container_scan == NULL)
+ return false;
+
+ db_lock();
+ struct directory *contdir =
+ make_directory_if_modified(directory, name, st);
+ if (contdir == NULL) {
+ /* not modified */
+ db_unlock();
+ return true;
+ }
+
+ contdir->device = DEVICE_CONTAINER;
+ db_unlock();
+
+ char *const pathname = map_directory_child_fs(directory, name);
+
+ char *vtrack;
+ unsigned int tnum = 0;
+ while ((vtrack = plugin->container_scan(pathname, ++tnum)) != NULL) {
+ struct song *song = song_file_new(vtrack, contdir);
+
+ // shouldn't be necessary but it's there..
+ song->mtime = st->st_mtime;
+
+ char *child_path_fs = map_directory_child_fs(contdir, vtrack);
+
+ song->tag = tag_new();
+ decoder_plugin_scan_file(plugin, child_path_fs,
+ &add_tag_handler, song->tag);
+ g_free(child_path_fs);
+
+ db_lock();
+ directory_add_song(contdir, song);
+ db_unlock();
+
+ modified = true;
+
+ g_message("added %s/%s",
+ directory_get_path(directory), vtrack);
+ g_free(vtrack);
+ }
+
+ g_free(pathname);
+
+ if (tnum == 1) {
+ db_lock();
+ delete_directory(contdir);
+ db_unlock();
+ return false;
+ } else
+ return true;
+}