Time ns

NAME

   time_ns() - return the number of nanoseconds since January 1, 1970

SYNOPSIS

   int time_ns( void );

DESCRIPTION

   Return the number of nanoseconds since midnight (GMT) January 1, 1970.

   注意：这是202年5月30日 3478cc2 分支新增efun。

SEE ALSO

   time(3), ctime(3), localtime(3), time_expression(3), uptime(3), perf_counter_ns(3)