[Boost-users] asio::async_write, how to delete data after

Subject: [Boost-users] asio::async_write, how to delete data after
From: Matteo Lanzi (matteo.lanzi_at_[hidden])
Date: 2010-07-09 19:49:33

Hi, I modified a little the echo server example and to build up a simple tcp
server; basically what I do is:

 

-          Start the server in a thread 

-          When a session is created I start  async read 

-          If my session receive a signal I  write a data with async write
function 

-          Handle data written then start again async read ( otherwise the
connection should be closed ) 

 

I have some specific functions which prepare packets and then invoke the
write method 

 

I would like to avoid static allocation of my buffer instead of dynamic one;
for doing that I supposed to use shared_array<T>

I can't do that because the boost::asio::buffer, required by the write
method, doesn't seem to accept smart pointer. 

 

So my questions are:

-          Is there a common pattern to follow for preparing data and delete
them after the delivery ? 

-          Is it possible to use smart pointers with async_write ? 

-          Is the async_write executed in another thread ? should I have
concurrency problems if I would use an unique output buffer and clear it on
the handle_write callback ? 

 

Thanks

Matteo