log: increase precision in log's timestamp to nanoseconds

Signed-off-by: lecaros <[email protected]>

Author: lecaros

src/flb_log.c

@@ -802,8 +802,11 @@ void flb_log_print(int type, const char *file, int line, const char *fmt, ...)
     int ret;
     struct log_message msg = {0};
     va_list args;
+    const char *msg_type_str;
+    uint64_t ts;
 
     struct flb_worker *w;
+    struct flb_config *config;
 
     va_start(args, fmt);
     ret = flb_log_construct(&msg, &len, type, file, line, fmt, &args);
@@ -815,6 +818,25 @@ void flb_log_print(int type, const char *file, int line, const char *fmt, ...)
 
     w = flb_worker_get();
     if (w) {
+        config = w->config;
+        if (config != NULL && config->log != NULL) {
+            msg_type_str = flb_log_message_type_str(type);
+            if (msg_type_str == NULL) {
+                msg_type_str = "unknown";
+            }
+
+            ts = cfl_time_now();
+            ret = cmt_counter_inc(config->log->metrics->logs_total_counter,
+                                  ts,
+                                  1, (char *[]) {msg_type_str});
+            if (ret == -1) {
+                /* Not using flb_log_debug to avoid recursing into this same function. */
+                fprintf(stderr,
+                        "[log] failed to increment log total counter for message type '%s' (error=%d)\n",
+                        msg_type_str, ret);
+            }
+        }
+
         n = flb_pipe_write_all(w->log[1], &msg, sizeof(msg));
 
         if (n == -1) {
@@ -874,6 +896,7 @@ int flb_log_destroy(struct flb_log *log, struct flb_config *config)
     }
     flb_log_worker_destroy(log->worker);
     flb_free(log->worker);
+    flb_log_metrics_destroy(log->metrics);
     flb_free(log);
 
     return 0;