new archive api, input_archive stream

src/archive_list.c

@@ -0,0 +1,105 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2008 Viliam Mateicka <viliam.mateicka@gmail.com>
+ * 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
+ */
+
+#include "archive_list.h"
+#include "archive_api.h"
+#include "utils.h"
+#include "../config.h"
+
+#include <string.h>
+#include <glib.h>
+
+static const struct archive_plugin *const archive_plugins[] = {
+	NULL
+};
+
+enum {
+	num_archive_plugins = G_N_ELEMENTS(archive_plugins)-1,
+};
+
+/** which plugins have been initialized successfully? */
+static bool archive_plugins_enabled[num_archive_plugins+1];
+
+const struct archive_plugin *
+archive_plugin_from_suffix(const char *suffix)
+{
+	unsigned i;
+
+	if (suffix == NULL)
+		return NULL;
+
+	for (i=0; i < num_archive_plugins; ++i) {
+		const struct archive_plugin *plugin = archive_plugins[i];
+		if (archive_plugins_enabled[i] &&
+		    stringFoundInStringArray(plugin->suffixes, suffix)) {
+			++i;
+			return plugin;
+		}
+	}
+	return NULL;
+}
+
+const struct archive_plugin *
+archive_plugin_from_name(const char *name)
+{
+	for (unsigned i = 0; i < num_archive_plugins; ++i) {
+		const struct archive_plugin *plugin = archive_plugins[i];
+		if (archive_plugins_enabled[i] &&
+		    strcmp(plugin->name, name) == 0)
+			return plugin;
+	}
+	return NULL;
+}
+
+void archive_plugin_print_all_suffixes(FILE * fp)
+{
+	const char *const*suffixes;
+
+	for (unsigned i = 0; i < num_archive_plugins; ++i) {
+		const struct archive_plugin *plugin = archive_plugins[i];
+		if (!archive_plugins_enabled[i])
+			continue;
+
+		suffixes = plugin->suffixes;
+		while (suffixes && *suffixes) {
+			fprintf(fp, "%s ", *suffixes);
+			suffixes++;
+		}
+	}
+	fprintf(fp, "\n");
+	fflush(fp);
+}
+
+void archive_plugin_init_all(void)
+{
+	for (unsigned i = 0; i < num_archive_plugins; ++i) {
+		const struct archive_plugin *plugin = archive_plugins[i];
+		if (plugin->init == NULL || archive_plugins[i]->init())
+			archive_plugins_enabled[i] = true;
+	}
+}
+
+void archive_plugin_deinit_all(void)
+{
+	for (unsigned i = 0; i < num_archive_plugins; ++i) {
+		const struct archive_plugin *plugin = archive_plugins[i];
+		if (archive_plugins_enabled[i] && plugin->finish != NULL)
+			archive_plugins[i]->finish();
+	}
+}
+