Re: [boost] [Serialization] Query

Subject: Re: [boost] [Serialization] Query
From: Robert Ramey (ramey_at_[hidden])
Date: 2010-07-23 19:02:57

Alapkumar Sinha wrote:
> Hi,
>
> I am trying to use the serialization library in the following
> scenario.
>
>
> 1.       I create one instance of an object in one process
>
> 2.       Serialize it either with binary/text archive
>
> 3.       Then send it through unix local socket  to another process
> where the process deserializes
>
> Whatever examples available, it shows just archiving like below
>
> std::ofstream ofs("filename");
> // use it to build and archive
> boost::archive::text_oarchive oa(ofs);
> // write class instance being pointed to
> // to the archive
> oa << g;
> /************/
>
> But after this
>
> 1.        I would like to copy the archived data to a buffer
>
> 2.       Send the buffer throught a socket something like
>
>   boost::asio::write(socket, boost::asio::buffer( buffer,
> sizeof(buffer));
>
>
>
> Can someone help on how I can get this done.
>

a) use a stringstream so no file is necessary
> std::sstream ofs()

b) serialize to binary_oarchive to save time
> // use it to build and archive
> boost::archive::binary_oarchive oa(ofs);

send ofs.get_string()? via your favorite method

> One more question: does the call boost::asio::write does
> serialization internally? If yes, still I would need how to get the
> buffer as mentioned in the query above a my transmission mechanism
> might change.

serialization uses any conforming stream you supply to it.
streams use streambuf objects. You can use the standard ones or make your 
own.

Robert Ramey