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

Subject: Re: [Boost-users] [Serialization] Sometimes Fails Reading Binary File
From: Robert McCullough (rob_at_[hidden])
Date: 2010-06-15 16:25:54

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_at_[hidden] [mailto:boost-users-
  > bounces_at_[hidden]] On Behalf Of Steven Watanabe
  > Sent: Tuesday, June 15, 2010 3:44 PM
  > To: boost-users_at_[hidden]
  > 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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