From: "U.Nakamura" <usa@...>
Date: 2009-01-28T11:40:06+09:00
Subject: [ruby-core:21625] Re: [Bug #1063] in `write': Not enough space - <STDOUT> (Errno::ENOMEM) on Windows XP

Hello,

In message "[ruby-core:21616] [Bug #1063] in `write': Not enough space - <STDOUT> (Errno::ENOMEM) on Windows XP"
    on Jan.28,2009 03:06:21, <redmine@ruby-lang.org> wrote:
> Hmm.  It does seem that running
> 
> STDOUT.write "a"*100000000
> 
> works on windows in 1.8.6 but not 1.9

It's Windows' bug.  The border is about 60KB.
I found this bug about 7 years ago, and I considered that
it is not critical.


If you want to reproduce on 1.8.6,
  STDOUT.binmode.write "a"*100000000

And if you want to reproduce it without ruby,
  #include <windows.h>
  #include <stdio.h>
  #include <stdlib.h>
  
  #define LEN 100000000
  
  int main()
  {
    DWORD sz;
    char *str = malloc(LEN + 1);
    memset(str, 'a', LEN);
    str[LEN] = '\0';
    WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), str, LEN, &sz, NULL);
    printf("%d, %d\n", sz, GetLastError());
    free(str);
    return 0;
  }


Regards,
-- 
U.Nakamura <usa@garbagecollect.jp>