(if (< unix-time (ash 1 31))
unix-time
(multiple-value-bind (year offset) (years-since-mar-2000 utime)
+ (declare (ignore year))
(+ +mar-1-2035+ (- unix-to-universal-time) offset)))))
(defun decode-universal-time (universal-time &optional time-zone)
nine values: second, minute, hour, date, month, year, day of week (0 =
Monday), T (daylight savings time) or NIL (standard time), and timezone.
Completely ignores daylight-savings-time when time-zone is supplied."
- (multiple-value-bind (weeks secs)
- (truncate (+ universal-time seconds-offset)
- seconds-in-week)
- (let* ((weeks (+ weeks weeks-offset))
- (second NIL)
- (minute NIL)
- (hour NIL)
- (date NIL)
- (month NIL)
- (year NIL)
- (day NIL)
- (daylight NIL)
- (timezone (cond
- ((null time-zone)
- (multiple-value-bind (ignore minwest dst)
- (sb!unix::get-timezone
- (truncate-to-unix-range universal-time))
- (declare (ignore ignore))
- (declare (fixnum minwest))
- (setf daylight dst)
- minwest))
- (t (* time-zone 60)))))
- (declare (fixnum timezone))
- (multiple-value-bind (t1 seconds) (truncate secs 60)
- (setq second seconds)
- (setq t1 (- t1 timezone))
- (let* ((tday (if (< t1 0)
- (1- (truncate (1+ t1) minutes-per-day))
- (truncate t1 minutes-per-day))))
- (multiple-value-setq (hour minute)
- (truncate (- t1 (* tday minutes-per-day)) 60))
- (let* ((t2 (1- (* (+ (* weeks 7) tday november-17-1858) 4)))
- (tcent (truncate t2 quarter-days-per-century)))
- (setq t2 (mod t2 quarter-days-per-century))
- (setq t2 (+ (- t2 (mod t2 4)) 3))
- (setq year (+ (* tcent 100) (truncate t2 quarter-days-per-year)))
- (let ((days-since-mar0 (1+ (truncate (mod t2 quarter-days-per-year)
- 4))))
- (setq day (mod (+ tday weekday-november-17-1858) 7))
- (let ((t3 (+ (* days-since-mar0 5) 456)))
- (cond ((>= t3 1989)
- (setq t3 (- t3 1836))
- (setq year (1+ year))))
- (multiple-value-setq (month t3) (truncate t3 153))
- (setq date (1+ (truncate t3 5))))))))
- (values second minute hour date month year day
- daylight
- (if daylight
- (1+ (/ timezone 60))
- (/ timezone 60))))))
+ (multiple-value-bind (daylight seconds-west)
+ (if time-zone
+ (values nil (* time-zone 60 60))
+ (multiple-value-bind (ignore seconds-west daylight)
+ (sb!unix::get-timezone (truncate-to-unix-range universal-time))
+ (declare (ignore ignore))
+ (declare (fixnum seconds-west))
+ (values daylight seconds-west)))
+ (declare (fixnum seconds-west))
+ (multiple-value-bind (weeks secs)
+ (truncate (+ (- universal-time seconds-west) seconds-offset)
+ seconds-in-week)
+ (let ((weeks (+ weeks weeks-offset)))
+ (multiple-value-bind (t1 second)
+ (truncate secs 60)
+ (let ((tday (truncate t1 minutes-per-day)))
+ (multiple-value-bind (hour minute)
+ (truncate (- t1 (* tday minutes-per-day)) 60)
+ (let* ((t2 (1- (* (+ (* weeks 7) tday november-17-1858) 4)))
+ (tcent (truncate t2 quarter-days-per-century)))
+ (setq t2 (mod t2 quarter-days-per-century))
+ (setq t2 (+ (- t2 (mod t2 4)) 3))
+ (let* ((year (+ (* tcent 100)
+ (truncate t2 quarter-days-per-year)))
+ (days-since-mar0
+ (1+ (truncate (mod t2 quarter-days-per-year) 4)))
+ (day (mod (+ tday weekday-november-17-1858) 7))
+ (t3 (+ (* days-since-mar0 5) 456)))
+ (cond ((>= t3 1989)
+ (setq t3 (- t3 1836))
+ (setq year (1+ year))))
+ (multiple-value-bind (month t3)
+ (truncate t3 153)
+ (let ((date (1+ (truncate t3 5))))
+ (values second minute hour date month year day
+ daylight
+ (if daylight
+ (1+ (/ seconds-west 60 60))
+ (/ seconds-west 60 60))))))))))))))
(defun pick-obvious-year (year)
(declare (type (mod 100) year))
(if (> year 2037)
(labels ((leap-year-p (year)
(cond ((zerop (mod year 400)) t)
- ((zerop (mod year 100)) t)
+ ((zerop (mod year 100)) nil)
((zerop (mod year 4)) t)
(t nil))))
(let* ((fake-year (if (leap-year-p year) 2036 2037))
(* 86400 (+ (* 365 (- year fake-year))
(- (leap-years-before year)
(leap-years-before fake-year)))))))
- (let* ((minwest-guess
- (sb!unix::unix-get-minutes-west
+ (let* ((secwest-guess
+ (sb!unix::unix-get-seconds-west
(- (* hours 60 60) unix-to-universal-time)))
- (guess (+ minute (* hours 60) minwest-guess))
- (minwest
- (sb!unix::unix-get-minutes-west
- (- (* guess 60) unix-to-universal-time))))
- (+ second (* (+ guess (- minwest minwest-guess)) 60)))))))
+ (guess (+ second (* 60 (+ minute (* hours 60)))
+ secwest-guess))
+ (secwest
+ (sb!unix::unix-get-seconds-west
+ (- guess unix-to-universal-time))))
+ (+ guess (- secwest secwest-guess)))))))
\f
;;;; TIME
+(defvar *gc-run-time* 0
+ #!+sb-doc
+ "the total CPU time spent doing garbage collection (as reported by
+ GET-INTERNAL-RUN-TIME)")
+(declaim (type index *gc-run-time*))
+
(defmacro time (form)
#!+sb-doc
"Execute FORM and print timing information on *TRACE-OUTPUT*."
(let ((gc-run-time (max (- *gc-run-time* start-gc-run-time) 0)))
(format *trace-output*
"~&Evaluation took:~% ~
- ~S second~:P of real time~% ~
- ~S second~:P of user run time~% ~
- ~S second~:P of system run time~% ~
+ ~S second~:P of real time~% ~
+ ~S second~:P of user run time~% ~
+ ~S second~:P of system run time~% ~
~@[ [Run times include ~S second~:P GC run time.]~% ~]~
- ~S page fault~:P and~% ~
- ~S bytes consed.~%"
+ ~S page fault~:P and~% ~
+ ~:D bytes consed.~%"
(max (/ (- new-real-time old-real-time)
(float sb!xc:internal-time-units-per-second))
0.0)
projects / sbcl.git / blobdiff