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From: James Cloos <cloos@jhcloos•com>
To: Nicolas Pitre <nico@cam•org>
Cc: git@vger•kernel.org
Subject: Re: [PATCH 1/1] Improve progress display in kB range.
Date: Wed, 22 Apr 2009 10:33:19 -0400	[thread overview]
Message-ID: <m34owgoj08.fsf@lugabout.jhcloos.org> (raw)
In-Reply-To: <m3d4b5oj76.fsf@lugabout.jhcloos.org> (James Cloos's message of "Tue, 21 Apr 2009 16:16:53 -0400")

|> Therefore, in practice — and as I have witnessed several thousand times
|> without ever having seen a contrary example — display_throughput() is
|> called *durring* a download only when total & 0xFFF == 0xFFF.

Another possibility is an off-by-one error.  The relevant part of fill()
looks like:

,----< excerpt from index-pack.c:fill() >
|   do {
|     ssize_t ret = xread(input_fd, input_buffer + input_len,
|                         sizeof(input_buffer) - input_len);
|     if (ret <= 0) {
|       if (!ret)
|         die("early EOF");
|       die("read error on input: %s", strerror(errno));
|     }
|     input_len += ret;
|     if (from_stdin)
|       display_throughput(progress, consumed_bytes + input_len);
|   } while (input_len < min);
|   return input_buffer;
| }
`----

if *(input_buffer + ret) is the last read octet rather than the next
empty octet, that would also explain what I see.

Perhaps that call to display_throughput() should have an extra +1?

-JimC
-- 
James Cloos <cloos@jhcloos•com>         OpenPGP: 1024D/ED7DAEA6

  reply	other threads:[~2009-04-22 14:37 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-19  4:38 [PATCH 0/1] Improve progress display in kB range James Cloos
2009-04-19  4:32 ` [PATCH 1/1] " James Cloos
2009-04-21  4:56   ` Nicolas Pitre
2009-04-21 17:11     ` James Cloos
2009-04-21 17:28       ` Nicolas Pitre
2009-04-21 20:16         ` James Cloos
2009-04-22 14:33           ` James Cloos [this message]
2009-04-22 19:44             ` Junio C Hamano
2009-04-22 22:35               ` James Cloos
2009-04-23  6:23                 ` Johannes Sixt
2009-04-24 20:15                 ` James Cloos
2009-04-24 21:46                   ` Nicolas Pitre
2009-04-24 22:20                     ` James Cloos

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