ctdb-common: Add logging utilities

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>

1 files changed, 74 insertions, 0 deletions

diff --git a/ctdb/common/logging.c b/ctdb/common/logging.c
new file mode 100644
index 00000000000..82cf3d9d2a2
--- /dev/null
+++ b/ctdb/common/logging.c
@@ -0,0 +1,74 @@
+/*
+   Logging utilities
+
+   Copyright (C) Amitay Isaacs  2015
+
+   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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <replace.h>
+
+#include "common/logging.h"
+
+struct {
+	enum debug_level log_level;
+	const char *log_string;
+} log_string_map[] = {
+	{ DEBUG_ERR,     "ERROR" },
+	{ DEBUG_WARNING, "WARNING" },
+	{ DEBUG_NOTICE,  "NOTICE" },
+	{ DEBUG_INFO,    "INFO" },
+	{ DEBUG_DEBUG,   "DEBUG" },
+};
+
+bool debug_level_parse(const char *log_string, enum debug_level *log_level)
+{
+	int i;
+
+	for (i=0; ARRAY_SIZE(log_string_map); i++) {
+		if (strcasecmp(log_string_map[i].log_string,
+			       log_string) == 0) {
+			*log_level = log_string_map[i].log_level;
+			return true;
+		}
+	}
+
+	return false;
+}
+
+const char *debug_level_to_string(enum debug_level log_level)
+{
+	int i;
+
+	for (i=0; ARRAY_SIZE(log_string_map); i++) {
+		if (log_string_map[i].log_level == log_level) {
+			return log_string_map[i].log_string;
+		}
+	}
+	return "UNKNOWN";
+}
+
+enum debug_level debug_level_from_string(const char *log_string)
+{
+	bool found;
+	enum debug_level log_level;
+
+	found = debug_level_parse(log_string, &log_level);
+	if (found) {
+		return log_level;
+	}
+
+	/* Default debug level */
+	return DEBUG_ERR;
+}