From win32utils-devel at rubyforge.org  Mon Jan  3 09:17:04 2005
From: win32utils-devel at rubyforge.org (win32utils-devel@rubyforge.org)
Date: Mon Jan  3 09:15:04 2005
Subject: [Win32utils-devel] win32-thread experiment
Message-ID: <8FE83020B9E1A248A182A9B0A7B76E7358B13C@itomae2km07.AD.QINTRA.COM>

> Hi Dan,

Hi, I'm back from vacation. :)

> On Fri, 17 Dec 2004 00:22:19 +0900, Daniel Berger  wrote:
> > I've tried tinkering with rb_gc_disable() and rb_gc_start() 
> in various 
> > places in the code but I haven't had any luck.  I'm still getting 
> > segfaults.

<snip>

> On the threading, what if you call rb_gc_disable(), then 
> create some win32 threads and see if you still get segfaults? 
>  (Don't ever call rb_gc_start).

I played around with this without luck.  Did you have any?
 
> Of course, if the threads are doing much with Ruby objects 
> they'll be creating garbage, so at some point the process 
> will run out of memory due to the lack of GC.  This is just 
> an experiment to see if threads can run happily if GC is off. 
>  If so, we can try to figure out where to go from here.
> 
> Wayne

If you have any suggestions, I'm all ears.  Also note that I've got a
highly experimental version of win32-fiber checked into CVS. :)

Regards,

Dan

From win32utils-devel at rubyforge.org  Tue Jan  4 02:03:34 2005
From: win32utils-devel at rubyforge.org (win32utils-devel@rubyforge.org)
Date: Tue Jan  4 02:01:32 2005
Subject: [Win32utils-devel] win32-thread experiment
In-Reply-To: <8FE83020B9E1A248A182A9B0A7B76E7358B13C@itomae2km07.AD.QINTRA.COM>
References: <8FE83020B9E1A248A182A9B0A7B76E7358B13C@itomae2km07.AD.QINTRA.COM>
Message-ID: <b85b7d4a050103230361969807@mail.gmail.com>

Hi Dan,

> I played around with this without luck.  Did you have any?

I haven't had time to give it a try myself.  Unfortunately, from your
results it sounds like more than just the GC is causing problems. 
Actually, that's doubly unfortunate, as the GC is one of the few
aspects of the environment that we can turn on and off when we want
to.

Take care,

Wayne


On Mon, 3 Jan 2005 08:17:04 -0600, win32utils-devel@rubyforge.org
<win32utils-devel@rubyforge.org> wrote:
> > Hi Dan,
> 
> Hi, I'm back from vacation. :)
> 
> > On Fri, 17 Dec 2004 00:22:19 +0900, Daniel Berger  wrote:
> > > I've tried tinkering with rb_gc_disable() and rb_gc_start()
> > in various
> > > places in the code but I haven't had any luck.  I'm still getting
> > > segfaults.
> 
> <snip>
> 
> > On the threading, what if you call rb_gc_disable(), then
> > create some win32 threads and see if you still get segfaults?
> >  (Don't ever call rb_gc_start).
> 
> I played around with this without luck.  Did you have any?
> 
> > Of course, if the threads are doing much with Ruby objects
> > they'll be creating garbage, so at some point the process
> > will run out of memory due to the lack of GC.  This is just
> > an experiment to see if threads can run happily if GC is off.
> >  If so, we can try to figure out where to go from here.
> >
> > Wayne
> 
> If you have any suggestions, I'm all ears.  Also note that I've got a
> highly experimental version of win32-fiber checked into CVS. :)
> 
> Regards,
> 
> Dan
> 
> _______________________________________________
> win32utils-devel mailing list
> win32utils-devel@rubyforge.org
> http://rubyforge.org/mailman/listinfo/win32utils-devel
>
From win32utils-devel at rubyforge.org  Tue Jan  4 18:27:04 2005
From: win32utils-devel at rubyforge.org (win32utils-devel@rubyforge.org)
Date: Tue Jan  4 18:27:57 2005
Subject: [Win32utils-devel] Ruby 1.8.2 and win32-open3
Message-ID: <BAY14-F94B7DA2B67D5855141C97DC910@phx.gbl>

FYI

It looks like the test suite for win32-open3 segfaults with the latest 
Windows installer.  Ugh.

I'll take a look at that this week.  So much for getting 0.2.0 out the door 
tonight.

- Dan


From win32utils-devel at rubyforge.org  Wed Jan  5 10:41:48 2005
From: win32utils-devel at rubyforge.org (win32utils-devel@rubyforge.org)
Date: Wed Jan  5 10:39:45 2005
Subject: [Win32utils-devel] Ruby 1.8.2 and win32-open3
Message-ID: <8FE83020B9E1A248A182A9B0A7B76E7358B14A@itomae2km07.AD.QINTRA.COM>

> -----Original Message-----
> From: win32utils-devel-bounces@rubyforge.org 
> [mailto:win32utils-devel-bounces@rubyforge.org] On Behalf Of 
> win32utils-devel@rubyforge.org
> Sent: Tuesday, January 04, 2005 4:27 PM
> To: win32utils-devel@rubyforge.org
> Subject: [Win32utils-devel] Ruby 1.8.2 and win32-open3
> 
> 
> FYI
> 
> It looks like the test suite for win32-open3 segfaults with 
> the latest 
> Windows installer.  Ugh.

Upon further review, this appears to be a VC++ 6 vs 7 issue.  I had no
problems on my WinXP Pro box using VC++ 7.

I'll make a note in the "Known Bugs" section of the docs.

Dan

From win32utils-devel at rubyforge.org  Thu Jan  6 12:00:57 2005
From: win32utils-devel at rubyforge.org (win32utils-devel@rubyforge.org)
Date: Thu Jan  6 11:58:57 2005
Subject: [Win32utils-devel] Some thoughts on win32-changenotify
Message-ID: <8FE83020B9E1A248A182A9B0A7B76E7358B153@itomae2km07.AD.QINTRA.COM>

Hi all,

As things stand now, you can do something like this with
win32-changenotify:

require "win32/changenotify"
include Win32

filter = ChangeNotify::FILE_NAME | ChangeNotify::DIR_NAME |
ChangeNotify::LAST_WRITE
cn = ChangeNotify.new("c:\\",false,filter){
	puts "Something changed"
}
cn.wait

You can pass a block that's executed when a change occurs, but you can't
get any details about the change.  I would like to alter that behavior
so that a ChangeNotifyStruct is yielded to the block that contains two
bits of information - the file or directory that was changed and what
that change would be.  So, that example would look something like this:

filter = ChangeNotify::FILE_NAME | ChangeNotify::DIR_NAME |
ChangeNotify::LAST_WRITE
cn = ChangeNotify.new("c:\\",false,filter){ |cns|
	puts "File changed: " + cns.file_name
	puts "Action: " + cns.action
}
cn.wait

That means altering changenotify.c to use ReadDirectoryChangesW()
instead of FindFirstChangeNotification().  Our Ruby ChangeNotifyStruct
would contain two members, "action" and "file_name" that would be the
Action and FileName members of the FILE_NOTIFY_INFORMATION structure.

I've tinkered around with this but I'm having a couple issues.  I can
open a directory and call ReadDirectoryChangesW() successfully, but I
can't figure out how to read back out of the buffer (nor am I exactly
sure what to pass as a buffer in the first place).

Here's the basic approach.

   // Get a handle to the directory.
   hDir = CreateFile(
	lpPathName,
      FILE_LIST_DIRECTORY,
      FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
      NULL,
      OPEN_EXISTING,
      FILE_FLAG_BACKUP_SEMANTICS,
      NULL
   );
   
   if(hDir == INVALID_HANDLE_VALUE) {
      rb_raise(cChangeNotifyError,ErrorDescription(GetLastError()));
   }
   
   if(!ReadDirectoryChangesW(
      hDir,
      Buf,
      sizeof(Buf),
      bWatchSubtree,
      dwNotifyFilter,
      &dwBytesReturned,
      NULL,
      NULL
   )){
      rb_raise(cChangeNotifyError,ErrorDescription(GetLastError()));
   }

So, the question is, what exactly should "Buf" be and how do I read a
single record back out of it?

Any takers?

Regards,

Dan

From win32utils-devel at rubyforge.org  Thu Jan 20 16:44:41 2005
From: win32utils-devel at rubyforge.org (win32utils-devel@rubyforge.org)
Date: Thu Jan 20 16:42:06 2005
Subject: [Win32utils-devel] ChangeNotify help wanted
Message-ID: <8FE83020B9E1A248A182A9B0A7B76E7358B1B5@itomae2km07.AD.QINTRA.COM>

Hi all,

I've checked in some code to win32-changenotify.  Unfortunately, it
doesn't work right.  I need some help.  I don't understand what,
exactly, I'm supposed to pass to ReadDirectoryChangesW() for the 2nd
argument, nor how to read the data back out.

There's also a WCHAR issue that needs to be worked out with regards to
the FileName FILE_NOTIFY_INFORMATION struct member.

Please see the changenotify_init() function in changenotify.c.

HELP!

Regards,

Dan

From win32utils-devel at rubyforge.org  Fri Jan 21 21:04:51 2005
From: win32utils-devel at rubyforge.org (win32utils-devel@rubyforge.org)
Date: Fri Jan 21 21:02:15 2005
Subject: [Win32utils-devel] ChangeNotify help wanted
References: <8FE83020B9E1A248A182A9B0A7B76E7358B1B5@itomae2km07.AD.QINTRA.COM>
Message-ID: <000601c50026$c271ead0$fb0d5bd2@2xnm9896kmqn5b9>

Hi Dan,

> Hi all,
> 
> I've checked in some code to win32-changenotify.  Unfortunately, it
> doesn't work right.  I need some help.  I don't understand what,
> exactly, I'm supposed to pass to ReadDirectoryChangesW() for the 2nd
> argument, nor how to read the data back out.
> 
> There's also a WCHAR issue that needs to be worked out with regards to
> the FileName FILE_NOTIFY_INFORMATION struct member.
> 
> Please see the changenotify_init() function in changenotify.c.
> 
> HELP!
> 
> Regards,
> 
> Dan

You should have read carefully the document  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/base/readdirectorychangesw.asp :-)
Upon successful synchronous completion, the lpBuffer parameter is a formatted buffer and the number of bytes written to the buffer is available in lpBytesReturned. If the number of bytes transferred is zero (0), the buffer was too small to provide detailed information on all the changes that occurred in the directory or subtree. In this case, you should compute the changes by enumerating the directory or subtree.

It seems that ReadDirectoryChangesW needs sufficient buffer for synchronous mode.

Here is my test code:

changenotify_init(VALUE self, VALUE rbPath, VALUE rbSubtree, VALUE rbFilter)
{
   HANDLE hDir;
   VALUE rbObject, rbStruct, rbAction;
   FILE_NOTIFY_INFORMATION fni[1024];
   LPCTSTR lpPathName = RSTRING(rbPath)->ptr;
   BOOL bWatchSubtree = (rbSubtree == Qtrue) ? TRUE : FALSE;
   DWORD dwNotifyFilter = NUM2INT(rbFilter);
   DWORD dwBytesReturned = 0;
   ChangeNotifyStruct* ptr;
   int i = 0;
   char filename[256];
      
   Data_Get_Struct(self,ChangeNotifyStruct,ptr);
   
   // Get a handle to the directory.
   hDir = CreateFile(
      lpPathName,
      FILE_LIST_DIRECTORY,
      FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
      NULL,
      OPEN_EXISTING,
      FILE_FLAG_BACKUP_SEMANTICS,
      NULL
   );
   
   if(hDir == INVALID_HANDLE_VALUE) {
      rb_raise(cChangeNotifyError,ErrorDescription(GetLastError()));
   }
   memset(&fni[0],0x00,sizeof(fni[0])*1024);
   if(ReadDirectoryChangesW(
      hDir,
      &fni[0],          
      sizeof(fni[0])*1024,   
      bWatchSubtree,
      dwNotifyFilter,
      &dwBytesReturned,
      NULL,
      NULL
   )==0){
      rb_raise(cChangeNotifyError,ErrorDescription(GetLastError()));
   }
   
   WideCharToMultiByte(CP_ACP,0,fni[0].FileName,-1,filename,256,NULL,NULL);

   printf("changenotify action=%ld,return=%ld,filenamd=%s \n",fni[0].Action,dwBytesReturned,filename);   
.....

}

Regards,

Park Heesob



From djberg96 at hotmail.com  Mon Jan 24 17:29:23 2005
From: djberg96 at hotmail.com (Daniel Berger)
Date: Mon Jan 24 17:27:17 2005
Subject: [Win32utils-devel] Test email
Message-ID: <BAY14-F171494A2F0BCCDE487FBE2DC850@phx.gbl>

This is a test to see if the "from" line shows up as me instead the generic 
list.  I had to tweak a setting I didn't know about (dammit).

Dan

In the immortal words of Socrates, "I drank what?"


From djberg96 at hotmail.com  Tue Jan 25 21:44:00 2005
From: djberg96 at hotmail.com (Daniel Berger)
Date: Tue Jan 25 21:42:16 2005
Subject: [Win32utils-devel] Change Journals
Message-ID: <BAY14-F332D459B68842334D9251FDC870@phx.gbl>

Hi,

I've released win32-changenotify 0.3.0 today.  Take a look.

Park and I have discussed a Ruby interface to change journals a little bit:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/base/creating_modifying_and_deleting_a_change_journal.asp

Park, would you like to do this, or did you want me to?  I wasn't sure from 
your RubyForge post.

Also, do folks think this should be bundled with win32-changenotify (as a 
separate class) or should it be a different package altogether?

Regards,

Dan

In the immortal words of Socrates, "I drank what?"


From phasis at nownuri.net  Wed Jan 26 08:17:25 2005
From: phasis at nownuri.net (Park Heesob)
Date: Wed Jan 26 08:14:39 2005
Subject: [Win32utils-devel] Change Journals
References: <BAY14-F332D459B68842334D9251FDC870@phx.gbl>
Message-ID: <00c701c503a9$60b52dd0$e80d5bd2@2xnm9896kmqn5b9>

Hi,

> Hi,
> 
> I've released win32-changenotify 0.3.0 today.  Take a look.
> 
> Park and I have discussed a Ruby interface to change journals a little bit:
> 
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/base/creating_modifying_and_deleting_a_change_journal.asp
> 
> Park, would you like to do this, or did you want me to?  I wasn't sure from 
> your RubyForge post.
> 
I'd like to do that by this weekend.

> Also, do folks think this should be bundled with win32-changenotify (as a 
> separate class) or should it be a different package altogether?
> 
How about different package name of win32-changejournal?

Regards,

Park Heesob

From sdate at everestkc.net  Wed Jan 26 09:30:34 2005
From: sdate at everestkc.net (Shashank Date)
Date: Wed Jan 26 09:27:51 2005
Subject: [Win32utils-devel] Change Journals
In-Reply-To: <00c701c503a9$60b52dd0$e80d5bd2@2xnm9896kmqn5b9>
References: <BAY14-F332D459B68842334D9251FDC870@phx.gbl>
	<00c701c503a9$60b52dd0$e80d5bd2@2xnm9896kmqn5b9>
Message-ID: <41F7A98A.8010709@everestkc.net>

Park Heesob wrote:

>>Also, do folks think this should be bundled with win32-changenotify (as a 
>>separate class) or should it be a different package altogether?
>>
>>    
>>
>How about different package name of win32-changejournal?
>  
>

+1

-- shanko

From Daniel.Berger at qwest.com  Wed Jan 26 09:55:46 2005
From: Daniel.Berger at qwest.com (Berger, Daniel)
Date: Wed Jan 26 09:52:59 2005
Subject: [Win32utils-devel] Change Journals
Message-ID: <8FE83020B9E1A248A182A9B0A7B76E7358B1BE@itomae2km07.AD.QINTRA.COM>

> -----Original Message-----
> From: win32utils-devel-bounces@rubyforge.org 
> [mailto:win32utils-devel-bounces@rubyforge.org] On Behalf Of 
> Shashank Date
> Sent: Wednesday, January 26, 2005 7:31 AM
> To: Development and ideas for win32utils projects
> Subject: Re: [Win32utils-devel] Change Journals
> 
> 
> Park Heesob wrote:
> 
> >>Also, do folks think this should be bundled with win32-changenotify 
> >>(as a
> >>separate class) or should it be a different package altogether?
> >>
> >>    
> >>
> >How about different package name of win32-changejournal?
> >  
> >
> 
> +1
> 
> -- shanko

Ok, win32-changejournal it is. :)

Dan