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Re: [PATCH] Allow giving floating point values to (sleep).
From: |
Arne Babenhauserheide |
Subject: |
Re: [PATCH] Allow giving floating point values to (sleep). |
Date: |
Sun, 26 Jun 2016 23:37:15 +0200 |
User-agent: |
mu4e 0.9.16; emacs 24.5.1 |
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address@hidden writes:
> # HG changeset patch
> # User Arne Babenhauserheide <address@hidden>
> # Date 1463764424 -7200
> # Fri May 20 19:13:44 2016 +0200
> # Node ID 8c8510a889e2d3b9f57f5b3057f5ed0e001ab799
> # Parent 0d961f25dfa2a5e421e3bd9d816740a736647cbc
> initial inelegant implementation of (sleep) which takes floats
>
> diff -r 0d961f25dfa2 -r 8c8510a889e2 libguile/scmsigs.c
> --- a/libguile/scmsigs.c Wed May 18 22:18:51 2016 +0200
> +++ b/libguile/scmsigs.c Fri May 20 19:13:44 2016 +0200
> @@ -625,14 +625,25 @@
>
> SCM_DEFINE (scm_sleep, "sleep", 1, 0, 0,
> (SCM i),
> - "Wait for the given number of seconds (an integer) or until a
> signal\n"
> - "arrives. The return value is zero if the time elapses or the
> number\n"
> - "of seconds remaining otherwise.\n"
> + "Wait for the given number of seconds (an integer or float)\n"
> + "or until a signal arrives. The return value is zero if the time\n"
> + "elapses or the number of seconds remaining otherwise.\n"
> "\n"
> "See also @code{usleep}.")
> #define FUNC_NAME s_scm_sleep
> {
> - return scm_from_uint (scm_std_sleep (scm_to_uint (i)));
> + SCM one, million, i_sleep, i_usleep, res_sleep, res_usleep;
> + if (SCM_LIKELY (scm_is_integer (i)))
> + return scm_from_uint (scm_std_sleep (scm_to_uint (i)));
> + one = scm_from_int (1);
> + million = scm_from_int (1000000);
> + /* Time to wait in sleep */
> + i_sleep = scm_inexact_to_exact (scm_floor_quotient (i, one));
> + /* Time to wait in usleep */
> + i_usleep = scm_inexact_to_exact (scm_floor_quotient (scm_product (million,
> scm_floor_remainder (i, one)), one));
> + res_sleep = scm_from_uint (scm_std_sleep (scm_to_uint (i_sleep)));
> + res_usleep = scm_from_ulong (scm_std_usleep (scm_to_ulong (i_usleep)));
> + return scm_sum(res_sleep, res_usleep);
> }
> #undef FUNC_NAME
>
--
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- Re: [PATCH] Allow giving floating point values to (sleep).,
Arne Babenhauserheide <=