291420 - build.dat can't be read because |tell| returns 0

Status: RESOLVED FIXED

(Webtools Graveyard :: Tinderbox, defect)

Description

[Andrew Schultz]

I discovered that my builds weren't showing up because |tell| here:
http://lxr.mozilla.org/mozilla/source/webtools/tinderbox/Backwards.pm#47 returns
0, even though my build.dat contains data.

info at the URL above includes:
> Do not use tell() (or other buffered I/O operations) on a file handle that has 
> been manipulated by sysread(), syswrite() or sysseek(). Those functions ignore 
> the buffering, while tell() does not.

sysseek returns the position.  Is there any reason not to use it?

Comment 1

[Andrew Schultz]

Attachment: patch

Comment 2

[Andrew Schultz]

fixed