/* time.c - time file for time */ /* Copyright 1992-1993 Wind River Systems, Inc. */ /* modification history -------------------- 01c,05feb93,jdi documentation cleanup for 5.1. 01b,20sep92,smb documentation additions 01a,25jul92,smb written. */ /* DESCRIPTION INCLUDE FILE: time.h SEE ALSO: American National Standard X3.159-1989 NOMANUAL */ #include "vxWorks.h" #include "time.h" #include "timers.h" /**************************************************************************** * * time - determine the current calendar time (ANSI) * * This routine returns the implementation's best approximation of current * calendar time in seconds. If is non-NULL, the return value is * also copied to the location points to. * * INTERNAL * Uses the POSIX clockLib functions. * Does this return the number of seconds since the BOARD was booted? * * INCLUDE FILES: time.h * * RETURNS: * The current calendar time in seconds, or ERROR (-1) if the calendar time * is not available. * * SEE ALSO: clock_gettime() */ time_t time ( time_t *timer /* calendar time in seconds */ ) { struct timespec tp; if (clock_gettime (CLOCK_REALTIME, &tp) == 0) { if (timer != NULL) *timer = (time_t) tp.tv_sec; return (time_t) (tp.tv_sec); } else return (time_t) (ERROR); }
