if (f != NULL && level <= f[1]) {
char s[3] = {flag, level, '\0'};
fprintf(file, "%09llu %d %s ", ((uint64_t)r->timestamp - offset) >> 6, thread_id, s);
if (f != NULL && level <= f[1]) {
char s[3] = {flag, level, '\0'};
fprintf(file, "%09llu %d %s ", ((uint64_t)r->timestamp - offset) >> 6, thread_id, s);