47 lines
1.5 KiB
Scheme
47 lines
1.5 KiB
Scheme
;;; Ikarus Scheme -- A compiler for R6RS Scheme.
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;;; Copyright (C) 2006,2007,2008 Abdulaziz Ghuloum
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;;;
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;;; This program is free software: you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License version 3 as
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;;; published by the Free Software Foundation.
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;;;
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;;; This program is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;; General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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(library (ikarus system time-and-date)
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(export current-time time? time-second time-nanosecond
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time-gmt-offset)
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(import
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(except (ikarus) time current-time time? time-second
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time-nanosecond time-gmt-offset))
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(define-struct time (msecs secs usecs))
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;;; mega/seconds/micros
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(define (current-time)
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(foreign-call "ikrt_current_time" (make-time 0 0 0)))
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(define (time-second x)
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(if (time? x)
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(+ (* (time-msecs x) #e10e5)
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(time-secs x))
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(die 'time-second "not a time" x)))
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(define (time-nanosecond x)
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(if (time? x)
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(* (time-usecs x) 1000)
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(die 'time-nanosecond "not a time" x)))
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(define (time-gmt-offset x)
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(if (time? x)
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(foreign-call "ikrt_gmt_offset" x)
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(die 'time-gmt-offset "not a time" x)))
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)
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