Re: Possible io:read bug
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- Subject: Re: Possible io:read bug
- From: Taj Khattra <taj.khattra@...>
- Date: 2004年2月25日 03:29:09 -0800
On Wed, Feb 25, 2004 at 10:58:10AM +0200, Tuomo Valkonen wrote:
> The first of the users who reported this problem was running SunOS and
> the second OpenBSD 3.4 with gcc 3.3.2 and both Lua 5.0 and 5.0.1.
you could add a temporary hack like
f = io.open(filename)
data = f:read('*a')
f:close()
p = io.popen('wc -c ' .. filename)
assert(string.len(data) == p:read('*n'))
p:close()
to check that the data returned from read('*a') has the correct length.
if this fails, then a system call trace should indicate why the all the
data is not being read in. on solaris, truss can also trace each call to
the C library function fread() in src/lib/liolib.c:read_chars() (which is
called for read('*a')).
-taj