1 files changed, 66 insertions, 0 deletions
diff --git a/ctrl/facemgr/src/util/log.h b/ctrl/facemgr/src/util/log.h
new file mode 100644
index 000000000..f1cafba47
--- /dev/null
+++ b/ctrl/facemgr/src/util/log.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTIL_LOG_H
+#define UTIL_LOG_H
+
+#include <stdarg.h> // va_*
+#include <stdio.h> // FILE
+#include <time.h> // time, localtime
+
+#define LOG_FATAL 0
+#define LOG_ERROR 1
+#define LOG_WARN  2
+#define LOG_INFO  3
+#define LOG_DEBUG 4
+#define LOG_TRACE 5
+
+typedef struct {
+  int log_level;
+  int debug;
+  FILE * log_file;
+} log_conf_t;
+
+#define DEFAULT_LOG_CONF {      \
+    .log_level = LOG_DEBUG,     \
+    .debug = 0,                 \
+    .log_file = NULL,           \
+};
+
+extern log_conf_t log_conf;
+
+#define WITH_DEBUG(BLOCK)                       \
+    if (log_conf.log_level >= LOG_DEBUG)        \
+        BLOCK
+
+#define FATAL(fmt, ...) (_log(LOG_FATAL, fmt, ##__VA_ARGS__ ))
+#define ERROR(fmt, ...) (_log(LOG_ERROR, fmt, ##__VA_ARGS__ ))
+#define WARN(fmt,  ...) (_log(LOG_WARN,  fmt, ##__VA_ARGS__ ))
+#define INFO(fmt,  ...) (_log(LOG_INFO,  fmt, ##__VA_ARGS__ ))
+#define DEBUG(fmt, ...) (_log(LOG_DEBUG, fmt, ##__VA_ARGS__ ))
+#define TRACE(fmt, ...) (_log(LOG_TRACE, fmt, ##__VA_ARGS__ ))
+
+void _log_va(int level, const char *fmt, va_list ap);
+
+void _log(int level, const char *fmt, ...);
+
+void fatal(char *fmt, ...);
+
+#ifdef HAVE_BACKTRACE
+#include <execinfo.h>
+void print_trace(void);
+#endif
+
+#endif // UTIL_LOG_H