Do not call strlen for every character in the log entry

NicolasDorier · May 22, 2018 · d9eba0e · d9eba0e
1 parent 88053bd
commit d9eba0e
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lightningd/log.c b/lightningd/log.c
@@ -255,8 +255,10 @@ void logv(struct log *log, enum log_level level, const char *fmt, va_list ap)
 
  l->log = tal_vfmt(l, fmt, ap);
 
+ size_t log_len = strlen(l->log);
+
  /* Sanitize any non-printable characters, and replace with '?' */
- for (size_t i=0; i<strlen(l->log); i++)
+ for (size_t i=0; i<log_len; i++)
  if (l->log[i] < ' ' || l->log[i] >= 0x7f)
  l->log[i] = '?';