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atomic write for sideband remote messages

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It has been a few times that I ended up with such a confusing display:

|remote: Generating pack...
|remote: Done counting 17 objects.
|remote: Result has 9 objects.
|remote: Deltifying 9 objects.
|remote:  100% (9/9) done
|remote: Unpacking 9 objects
|Total 9, written 9 (delta 8), reused 0 (delta 0)
| 100% (9/9) done

The confusion can be avoided in most cases by writing the remote message
in one go to prevent interleacing with local messages.  The buffer
declaration has been moved inside recv_sideband() to avoid extra string
copies.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Nicolas Pitre
2006-10-11 11:49:15 -04:00
committed by Junio C Hamano
parent 0503f9c178
commit 9ac13ec941
4 changed files with 19 additions and 17 deletions
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4
fetch-clone.c
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@ -115,12 +115,10 @@ static pid_t setup_sideband(int sideband, const char *me, int fd[2], int xd[2])
die("%s: unable to fork off sideband demultiplexer", me);
if (!side_pid) {
/* subprocess */
char buf[LARGE_PACKET_MAX];
close(fd[0]);
if (xd[0] != xd[1])
close(xd[1]);
if (recv_sideband(me, xd[0], fd[1], 2, buf, sizeof(buf)))
if (recv_sideband(me, xd[0], fd[1], 2))
exit(1);
exit(0);
}