Re: [Boost-users] boost::asio memory buffers and persistent connections.

Subject: Re: [Boost-users] boost::asio memory buffers and persistent connections.
From: Juraj Ivančić (juraj.ivancic_at_[hidden])
Date: 2009-03-26 10:53:24

Igor R wrote:
>> How could i make it so i can set the buffer to use at the exact moment in
>> which data for a new request in an already open connection begins to arrive?
> 
> You can make initial calls to async_read (or whatever read function
> you use) with buffer of 1 byte. When the handler is called, i.e. some
> data is available, you can perform "speculative" read (even
> synchronous) of all the data available - into any buffer you wish.

There is no need for a 1 byte buffer - ASIO provides null_buffers() for 
this purpose. See e.g.

http://www.boost.org/doc/libs/1_38_0/doc/html/boost_asio/overview/core/reactor.html

HTH,
    Juraj