Re: [MIT-Scheme-devel] feature request

[naruto canada]

On 9/16/08, naruto canada <address@hidden> wrote:
> On 9/16/08, Taylor R Campbell <address@hidden> wrote:
>>    Date: Tue, 16 Sep 2008 17:38:03 +0000
>>    From: "naruto canada" <address@hidden>
>>
>>    May I request a feature that would work like "date +%s%N", ie a finer
>>    time function then the current  "(get-universal-time)".
>>
>> `%s' in strftime(3) [and date(1)] means the number of seconds since
>> the epoch.  If you want this value, you can subtract the epoch, in the
>> variable named EPOCH, from the value returned by GET-UNIVERSAL-TIME.
>>
>> What does %N mean?  It's not a standard strftime(3) format.

It means nansecond.

>
> date --version
> date (GNU coreutils) 6.12
> Copyright (C) 2008 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
>
> Written by David MacKenzie.
>
>
>>
>>    This is for gen-sym that would work in multiple processes on the
>>    same machine to ensure absolute unique symbols.
>>
>> Why don't you just generate, say, 128 random bits?
>>
>
> how do you do that in mit-scheme without possibly multiple processes
> getting the same time as entropy?
>