Input*: move to input/

src/input/Init.cxx

@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2003-2014 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 "Init.hxx"
+#include "Registry.hxx"
+#include "InputPlugin.hxx"
+#include "util/Error.hxx"
+#include "util/Domain.hxx"
+#include "config/ConfigGlobal.hxx"
+#include "config/ConfigOption.hxx"
+#include "config/ConfigData.hxx"
+
+#include <assert.h>
+#include <string.h>
+
+extern constexpr Domain input_domain("input");
+
+/**
+ * Find the "input" configuration block for the specified plugin.
+ *
+ * @param plugin_name the name of the input plugin
+ * @return the configuration block, or nullptr if none was configured
+ */
+static const struct config_param *
+input_plugin_config(const char *plugin_name, Error &error)
+{
+	const struct config_param *param = nullptr;
+
+	while ((param = config_get_next_param(CONF_INPUT, param)) != nullptr) {
+		const char *name = param->GetBlockValue("plugin");
+		if (name == nullptr) {
+			error.Format(input_domain,
+				     "input configuration without 'plugin' name in line %d",
+				     param->line);
+			return nullptr;
+		}
+
+		if (strcmp(name, plugin_name) == 0)
+			return param;
+	}
+
+	return nullptr;
+}
+
+bool
+input_stream_global_init(Error &error)
+{
+	const config_param empty;
+
+	for (unsigned i = 0; input_plugins[i] != nullptr; ++i) {
+		const InputPlugin *plugin = input_plugins[i];
+
+		assert(plugin->name != nullptr);
+		assert(*plugin->name != 0);
+		assert(plugin->open != nullptr);
+
+		const struct config_param *param =
+			input_plugin_config(plugin->name, error);
+		if (param == nullptr) {
+			if (error.IsDefined())
+				return false;
+
+			param = &empty;
+		} else if (!param->GetBlockValue("enabled", true))
+			/* the plugin is disabled in mpd.conf */
+			continue;
+
+		if (plugin->init == nullptr || plugin->init(*param, error))
+			input_plugins_enabled[i] = true;
+		else {
+			error.FormatPrefix("Failed to initialize input plugin '%s': ",
+					   plugin->name);
+			return false;
+		}
+	}
+
+	return true;
+}
+
+void input_stream_global_finish(void)
+{
+	input_plugins_for_each_enabled(plugin)
+		if (plugin->finish != nullptr)
+			plugin->finish();
+}