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35 lines
1 KiB
Scheme
35 lines
1 KiB
Scheme
;;;; Cyclone Scheme
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;;;; https://github.com/justinethier/cyclone
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;;;;
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;;;; Copyright (c) 2014-2016, Justin Ethier
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;;;; All rights reserved.
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;;;;
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;;;; This module contains the time library from r7rs.
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;;;;
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(define-library (scheme time)
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(export
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current-second
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current-jiffy
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jiffies-per-second
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)
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(import (scheme base)
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)
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;; TODO: get an FFI syntax for including C header files, even if it is not needed for this library
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(begin
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(define-c current-second
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"(void *data, int argc, closure _, object k)"
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" make_double(box, 0.0);
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time_t t = time(NULL);
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double_value(&box) = t;
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return_closcall1(data, k, &box); ")
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(define-c current-jiffy
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"(void *data, int argc, closure _, object k)"
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" make_double(box, 0.0);
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clock_t jiffy = clock();
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double_value(&box) = jiffy;
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return_closcall1(data, k, &box); ")
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(define-c jiffies-per-second
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"(void *data, int argc, closure _, object k)"
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" make_int(box, CLOCKS_PER_SEC);
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return_closcall1(data, k, &box); ")
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))
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