ConfigFile: move code to ConfigGlobal.cxx

src/ConfigGlobal.cxx

@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2003-2013 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 "ConfigGlobal.hxx"
+#include "ConfigParser.hxx"
+#include "ConfigData.hxx"
+#include "ConfigFile.hxx"
+
+extern "C" {
+#include "utils.h"
+}
+
+#include "mpd_error.h"
+
+#include <glib.h>
+
+#include <assert.h>
+#include <string.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "config"
+
+static ConfigData config_data;
+
+static void
+config_param_free_callback(gpointer data, G_GNUC_UNUSED gpointer user_data)
+{
+	struct config_param *param = (struct config_param *)data;
+
+	config_param_free(param);
+}
+
+void config_global_finish(void)
+{
+	for (auto i : config_data.params) {
+		g_slist_foreach(i, config_param_free_callback, NULL);
+		g_slist_free(i);
+	}
+}
+
+void config_global_init(void)
+{
+}
+
+bool
+ReadConfigFile(const Path &path, GError **error_r)
+{
+	return ReadConfigFile(config_data, path, error_r);
+}
+
+static void
+config_param_check(gpointer data, G_GNUC_UNUSED gpointer user_data)
+{
+	struct config_param *param = (struct config_param *)data;
+
+	if (!param->used)
+		/* this whole config_param was not queried at all -
+		   the feature might be disabled at compile time?
+		   Silently ignore it here. */
+		return;
+
+	for (unsigned i = 0; i < param->num_block_params; i++) {
+		struct block_param *bp = &param->block_params[i];
+
+		if (!bp->used)
+			g_warning("option '%s' on line %i was not recognized",
+				  bp->name, bp->line);
+	}
+}
+
+void config_global_check(void)
+{
+	for (auto i : config_data.params)
+		g_slist_foreach(i, config_param_check, NULL);
+}
+
+const struct config_param *
+config_get_next_param(ConfigOption option, const struct config_param * last)
+{
+	GSList *node = config_data.params[unsigned(option)];
+
+	if (last) {
+		node = g_slist_find(node, last);
+		if (node == NULL)
+			return NULL;
+
+		node = g_slist_next(node);
+	}
+
+	if (node == NULL)
+		return NULL;
+
+	struct config_param *param = (struct config_param *)node->data;
+	param->used = true;
+	return param;
+}
+
+const char *
+config_get_string(ConfigOption option, const char *default_value)
+{
+	const struct config_param *param = config_get_param(option);
+
+	if (param == NULL)
+		return default_value;
+
+	return param->value;
+}
+
+char *
+config_dup_path(ConfigOption option, GError **error_r)
+{
+	assert(error_r != NULL);
+	assert(*error_r == NULL);
+
+	const struct config_param *param = config_get_param(option);
+	if (param == NULL)
+		return NULL;
+
+	char *path = parsePath(param->value, error_r);
+	if (G_UNLIKELY(path == NULL))
+		g_prefix_error(error_r,
+			       "Invalid path at line %i: ",
+			       param->line);
+
+	return path;
+}
+
+unsigned
+config_get_unsigned(ConfigOption option, unsigned default_value)
+{
+	const struct config_param *param = config_get_param(option);
+	long value;
+	char *endptr;
+
+	if (param == NULL)
+		return default_value;
+
+	value = strtol(param->value, &endptr, 0);
+	if (*endptr != 0 || value < 0)
+		MPD_ERROR("Not a valid non-negative number in line %i",
+			  param->line);
+
+	return (unsigned)value;
+}
+
+unsigned
+config_get_positive(ConfigOption option, unsigned default_value)
+{
+	const struct config_param *param = config_get_param(option);
+	long value;
+	char *endptr;
+
+	if (param == NULL)
+		return default_value;
+
+	value = strtol(param->value, &endptr, 0);
+	if (*endptr != 0)
+		MPD_ERROR("Not a valid number in line %i", param->line);
+
+	if (value <= 0)
+		MPD_ERROR("Not a positive number in line %i", param->line);
+
+	return (unsigned)value;
+}
+
+bool
+config_get_bool(ConfigOption option, bool default_value)
+{
+	const struct config_param *param = config_get_param(option);
+	bool success, value;
+
+	if (param == NULL)
+		return default_value;
+
+	success = get_bool(param->value, &value);
+	if (!success)
+		MPD_ERROR("Expected boolean value (yes, true, 1) or "
+			  "(no, false, 0) on line %i\n",
+			  param->line);
+
+	return value;
+}