asio C++ library

File Release Notes and Changelog

Release Name: 1.3.1 (Development)

Notes:
The asio 1.3.1 release continues the 1.3.x development series, and
represents the complete feature set that will become asio 1.4.x.

Changes:
The new features in this release are:

* Lazy initialisation of the io_service reactor task.

  On platforms that use a reactor-based io_service (i.e. all POSIX
  platforms and Windows when I/O completion ports are disabled), the
  reactor is now lazily initialised when the first socket, timer or
  descriptor is created on the io_sevice. This change significantly
  reduces the memory usage of an io_service that is used purely as a
  message queue.

* Bounds checking in ip::address_v4 and ip::address_v6.

  The address classes now perform boundary checking of integer
  arguments as per the TR2 networking proposal.

The bug fixes of note in this release are:

* Fixed an infinite recursion in synchronous SSL handshaking.

* Fixed a memory leak cause by the prior change to allow globally
  scoped io_service objects in dynamically loaded libraries on
  Windows. Such applications must now call:

    asio::detail::thread::set_terminate_threads(true);
   
  prior to the DLL being unloaded, to prevent deadlock in DllMain.

* Ensured the streambuf's egptr() (the end of the get area) is kept
  synchronised with changes to pptr() (the start of the put area).

* Reduced data copying when a streambuf's internal buffer is resized
  or its contents are moved.

* Made service typeids work across shared library boundaries when
  the default gcc linker visibility is set to hidden.

* Fixed basic_socket_streambuf<> and basic_socket_iostream<> to work
  with Protocol objects that do not provide a resolver.