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PATCH: pws-19: mapfile bit that just sort of disappeared

X-seq: zsh-workers 6346
From: Peter Stephenson <pws@xxxxxxxxxxxxxxxxx>
To: zsh-workers@xxxxxxxxxxxxxx (Zsh hackers list)
Subject: PATCH: pws-19: mapfile bit that just sort of disappeared
Date: Tue, 25 May 1999 13:49:27 +0200
In-reply-to: "Peter Stephenson"'s message of "Tue, 25 May 1999 12:01:10 DFT." <9905251001.AA28774@xxxxxxxxxxxxxxxxx>
Mailing-list: contact zsh-workers-help@xxxxxxxxxxxxxx; run by ezmlm

Peter Stephenson wrote:
> By the way, it looks like mapfile using mmap() doesn't write the file
> properly on HPUX, probably the file doesn't get extended properly first.
> I'll have to look at that.

No real wonder.  This was there at some stage, though.

--- Src/Modules/mapfile.c.ms	Sat May 22 17:05:15 1999
+++ Src/Modules/mapfile.c	Tue May 25 13:40:47 1999
@@ -143,6 +143,7 @@
 	 */
 	ftruncate(fd, len);
 	memcpy(mmptr, value, len);
+	msync(mmptr, len, MS_SYNC);
 	/*
 	 * Then we need to truncate again, since mmap() always maps complete
 	 * pages.  Honestly, I tried it without, and you need both.

-- 
Peter Stephenson <pws@xxxxxxxxxxxxxxxxx>       Tel: +39 050 844536
WWW:  http://www.ifh.de/~pws/
Dipartimento di Fisica, Via Buonarroti 2, 56127 Pisa, Italy

References:
- PATCH: pws-19: another configure tweak
  - From: Peter Stephenson

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