manage tag string allocations in a pool

There are many duplicated strings in the tag database, e.g. many songs
having the same artist.  Don't allocate such strings twice, manage all
strings in a pool.

1 files changed, 28 insertions, 0 deletions

diff --git a/src/str_pool.h b/src/str_pool.h
new file mode 100644
index 000000000..4a0ad12d8
--- /dev/null
+++ b/src/str_pool.h
@@ -0,0 +1,28 @@
+/* ncmpc
+ * Copyright (C) 2008 Max Kellermann <max@duempel.org>
+ * This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef STR_POOL_H
+#define STR_POOL_H
+
+char *str_pool_get(const char *value);
+
+char *str_pool_dup(char *value);
+
+void str_pool_put(char *value);
+
+#endif