Add time logging.

1 files changed, 21 insertions, 2 deletions

diff --git a/src/log.c b/src/log.c
index d03d86e..c1d4a98 100644
--- a/src/log.c
+++ b/src/log.c
@@ -6,6 +6,8 @@
 
 #include <stdio.h>
 #include <stdarg.h>
+#include <time.h>
+#include <unistd.h>
 
 const char *LOGPATH = "/tmp/mysqlerl.log";
 static FILE *logfile = NULL;
@@ -26,16 +28,33 @@ void
 logmsg(const char *format, ...)
 {
   FILE *out = logfile;
+  char timebuf[32] = "\0";
+  struct tm now_tm;
+  time_t now_time;
   va_list args;
 
+  va_start(args, format);
+
   if (logfile == NULL)
     out = stderr;
 
-  va_start(args, format);
+  if (time(&now_time) == (time_t)-1) {
+    (void)fprintf(out, "LOGERROR - Failed to fetch time: ");
+  } else {
+    (void)localtime_r(&now_time, &now_tm);
+    if (strftime(timebuf, sizeof(timebuf), "%Y%m%d %H:%M:%S ", &now_tm) == 0) {
+      (void)fprintf(out, "LOGERROR - Failed to parse time (now: %d): ",
+                    (int)now_time);
+    } else {
+      (void)fprintf(out, timebuf);
+    }
+  }
+  (void)fprintf(out, "[%d]: ", getpid());
   (void)vfprintf(out, format, args);
   (void)fprintf(out, "\n");
-  va_end(args);
 
   fflush(out);
+
+  va_end(args);
 }