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authorMax Kellermann <max@duempel.org>2010-07-21 08:58:15 +0200
committerMax Kellermann <max@duempel.org>2010-07-21 09:26:50 +0200
commite598922133d11cc59994f35f62fe0f454ceb4173 (patch)
treed2bcfedb8870ceb4d18a5199ce2b06593c8926a0 /src/playlist_database.c
parente21ad70f3fa183447436c5434585288d58559a46 (diff)
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update: store playlist files in database
Don't open the music directory for each "lsinfo" call. Get the list of playlist files from the memory database.
Diffstat (limited to '')
-rw-r--r--src/playlist_database.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/playlist_database.c b/src/playlist_database.c
new file mode 100644
index 000000000..f74406277
--- /dev/null
+++ b/src/playlist_database.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2003-2010 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"
+#include "playlist_database.h"
+#include "playlist_vector.h"
+#include "text_file.h"
+
+#include <string.h>
+#include <stdlib.h>
+
+static GQuark
+playlist_database_quark(void)
+{
+ return g_quark_from_static_string("playlist_database");
+}
+
+void
+playlist_vector_save(FILE *fp, const struct playlist_vector *pv)
+{
+ for (const struct playlist_metadata *pm = pv->head;
+ pm != NULL; pm = pm->next)
+ fprintf(fp, PLAYLIST_META_BEGIN "%s\n"
+ "mtime: %li\n"
+ "playlist_end\n",
+ pm->name, (long)pm->mtime);
+}
+
+bool
+playlist_metadata_load(FILE *fp, struct playlist_vector *pv, const char *name,
+ GString *buffer, GError **error_r)
+{
+ struct playlist_metadata pm;
+ char *line, *colon;
+ const char *value;
+
+ while ((line = read_text_line(fp, buffer)) != NULL &&
+ strcmp(line, "playlist_end") != 0) {
+ colon = strchr(line, ':');
+ if (colon == NULL || colon == line) {
+ g_set_error(error_r, playlist_database_quark(), 0,
+ "unknown line in db: %s", line);
+ return false;
+ }
+
+ *colon++ = 0;
+ value = g_strchug(colon);
+
+ if (strcmp(line, "mtime") == 0)
+ pm.mtime = strtol(value, NULL, 10);
+ else {
+ g_set_error(error_r, playlist_database_quark(), 0,
+ "unknown line in db: %s", line);
+ return false;
+ }
+ }
+
+ playlist_vector_update_or_add(pv, name, pm.mtime);
+ return true;
+}