Re: [Boost-users] [Serialization] Sometimes Fails Reading Binary File

15 Jun 2010

      Hi Steven,

Answers to your questions:
a) it yields different behavior for the same archive.
b) See attached source LegacyMonitorPersistentData.h
c) See attached source PersistentData.h
d)  I have not tried that.  I will give this a try.
This is what I am testing.
I have this archive file ^Press.dat. that was created once by our customer.
I try to de-serializing using the loadPersistentData() function and it works
sometimes, but about 
every third try it throw one of the exceptions.

Thanks,
Robert
...
-----Original Message-----
From: boost-users-bounces@lists.boost.org [mailto:boost-users-
bounces@lists.boost.org] On Behalf Of Steven Watanabe
Sent: Tuesday, June 15, 2010 3:44 PM
To: boost-users@lists.boost.org
Subject: Re: [Boost-users] [Serialization] Sometimes Fails Reading
Binary
File
AMDG
Robert McCullough wrote:
...
I am using Boost 1.43.0, Linux 2.6.23, gcc version 4.0.0 on a
Freescale PowerPC.
I am reading  in a serialized binary file using
Ifstream ifs;
try
{
  Ifs.open(filename.c_str(), iso_base::binary | iso_base::in);
  If(fs.is_open())
  {
    Boost::archive::binary_iarchive ia(ifs);
    ia >> data;
    ifs.close();
  }
} catch (std:exception &e) {
  Ifs.close();
}
Sometimes it reads the file fine and sometimes it throws one of the
following errors.
invalid_signature, Basic_string::resize, or stream error.
Does anyone have an idea why sometimes it works and sometimes it
does
not work?
a) Is the behavior consistent?  i.e. does it yield different behavior
for
different archives, or can it yield different behavior for the same
archive?
b) What is data?
c) How is the archive created
d) Does it help if the archive is destroyed before the stream is closed?
In Christ,
Steven Watanabe
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