Timestamped logging macro for elapsed physical time

logging/api/logging_macros.h

@@ -12,10 +12,11 @@
 #define LOGGING_MACROS_H
 #include "logging.h"
 #include <stdbool.h>
+#include "tag.h"
 
 /** Default log level. */
 #ifndef LOG_LEVEL
-#define LOG_LEVEL LOG_LEVEL_INFO
+#define LOG_LEVEL LOG_LEVEL_DEBUG
 #endif
 
 // To prevent warnings "conditional expression is constant", we define static booleans
@@ -76,6 +77,20 @@ static const bool _lf_log_level_is_debug = LOG_LEVEL >= LOG_LEVEL_DEBUG;
     }                                                                                                                  \
   } while (0)
 
+/**
+ * @brief A macro used to print timestamped(physical time) debug information.
+ * @ingroup API
+ *
+ * @note This macro is functionally same as @ref LF_PRINT_DEBUG but with added timestamp for physical time.
+ * This is to check physical time of debug logs. It uses @ref lf_time_physical to get the physical time.
+ */
+#define LF_TIMESTAMP_PRINT_DEBUG(format, ...)                                                                          \
+  do {                                                                                                                 \
+    if (_lf_log_level_is_debug) {                                                                                      \
+      lf_print_debug("[%ld] " format, lf_time_physical_elapsed(), ##__VA_ARGS__);                                             \
+    }                                                                                                                  \
+  } while (0)
+
 #if defined(NDEBUG)
 #define LF_ASSERT(condition, format, ...) (void)(condition)
 #define LF_ASSERTN(condition, format, ...) (void)(condition)

test/general/logging_test.c

@@ -0,0 +1,20 @@
+#include "logging_macros.h"
+#include <unistd.h>
+
+#define TOTAL_LOOP_CASES 10
+
+/**
+* @brief test for testing LF_TIMESTAMP_PRINT_DEBUG macro
+* must be in LOG_LEVEL LOG_LEVEL_DEBUG
+*/
+int main()
+{
+    LF_PRINT_DEBUG("Start time: %ld", lf_time_start());
+    for(int i; i<TOTAL_LOOP_CASES; i++)
+    {
+        LF_TIMESTAMP_PRINT_DEBUG("[Test case: %d]testing timed debug prints", i);
+        sleep(1);
+    }
+
+    return 0;
+}