ChangeLog.md

Version 0.5.5

2013_01_07

• Cover aout in manual
• Solved bug in chaining implementation
• Added support for Boost.Context 1.51
• Use memory::create rather than new for all actors
• Simplified invoke process of match_expr

Version 0.5.4

2012-11-19

• Update libcppa to work with Boost.Context 1.52
• Fix possible memory corruption in behavior_stack
• Fix fiber implementaiton if compiling without Boost.Context

Version 0.5.3

2012-11-13

• Improved memory management
  • Use a per-thread memory cache for recursive_queue_node and actor objects
  • Allocate ~1kb worth ob objects rather than allocating each object with new
  • Destroyed objects are returned to the cache and re-used later
• Add intrusive_fwd_ptr to support counted pointers for forward declared types
• Qt example for group chat, highlighting actor_widget_mixin

Version 0.5.2

2012-11-05

• Fixed Bug in CMake when compiling w/o Boost.Context
• Added --bulid-static and --build-static-only flags to configure script
• Moved benchmarks folder to own repository

Version 0.5.1

2012-11-03

• Added make_response_handle which allows an actor to reply to message later
• Replace continuable_writer with continuable_io : continuable_reader
• No more multiple inheritance in default_peer (derives continuable_io)
• MM reports IO failures to corresponding objects
• New behavior in default protocol regarding outgoing messages:
  • default_peer uses FIFO queue for outgoing messages
  • queue stores messages even if no active connection is available
  • new connections then check for previously enqueued messages first

Version 0.5

2012-10-26

• New logging facility
  • must be enabled using --with-cppa-log-level=LEVEL (TRACE-ERROR)
  • --enable-debug also enables ERROR log level implicitly
  • output files are named libcppa_PID_TIMESTAMP.log
  • log format is Log4j-like
• New middleman (MM) architecture
  • MM multiplexes sockets but no longer knows communication internas
  • new protocol interface encapsulates any communication
  • users can add new communication protocols to MM
  • previously used binary protocol is not called 'DEFAULT'
  • MM provides run_later function to hook code into MM event-loop
• New class: weak_intrusive_ptr
  • ref_counted has protected destructor to enforce use of request_deletion
  • default request_deletion calls delete
  • enable_weak_ptr_mixin overrides request_deletion to invalidate weak ptrs
• Fixed issue #75: peers hold weak pointers to proxies (breaks cyclic refs)
• actor_companion_mixin allows non-actor classes to communicate as/to actors
• actor_proxy became an abstract class; must be implemented for each protocol
• Removed global proxy cache singleton
• actor_addressing manages proxies; must be implemented for each protocol
• New factory function: make_counted (similar to std::make_shared)
• Bugfix: reply matches correct message on nested receives

Version 0.4.2

2012-10-1

• Refactored announce
  • accept recursive containers, e.g., vector<vector<double>>
  • allow user-defined types as members of announced types
  • all-new, policy-based implementation
• Use poll rather than select in middleman (based on the patch by ArtemGr)

Version 0.4.1

2012-08-22

• Bugfix: shutdown caused segfault if no scheduler or middleman was started

Version 0.4

2012-08-20

• New network layer implementation
• Added acceptor and input/output stream interfaces
• Added overload for publish and remote_actor using the new interfaces
• Changed group::add_module to take unique_ptr rather than a raw pointer
• Refactored serialization process for group_ptr
• Changed anyonymous groups to use the implementation of the "local" module
• Added scheduled_and_hidden policy for system-internal, event-based actors
• Enabled serialization of floating point values
• Added shutdown function
• Implemented broker-based forwarding of local groups for 'pseudo multicast'
• Added then and await member functions to message_future
• Do not send more than one response message with reply

Version 0.3.3

2012-08-09

• Bugfix: serialize message id for synchronous messaging
• Added macro to unit_testing/CMakeLists.txt for less verbose CMake setup
• Added function "forward_to" to enable transparent forwarding of sync requests
• Removed obsolete files (gen_server/* and queue_performances/*)
• Bugfix: avoid possible stack overflow in debug mode for test__spawn
• Added functions "send_tuple", "sync_send_tuple" and "reply_tuple"
• Let "make" fail on first error in dual-build mode
• Added rvalue overload for receive_loop
• Added "delayed_send_tuple" and "delayed_reply_tuple"

Version 0.3.2

2012-07-30

• Bugfix: added 'bool' to the list of announced types

Version 0.3.1

2012-07-27

• Bugfix: always return from a synchronous handler if a timeout occurs
• Bugfix: request next timeout after timeout handler invocation if needed

Version 0.3

2012-07-25

• Implemented synchronous messages
• The function become() no longer accepts pointers
• Provide --disable-context-switching option to bypass Boost.Context if needed
• Configure script to hide CMake details behind a nice interface
• Include "tuple_cast.hpp" in "cppa.hpp"
• Added forwarding header "cppa_fwd.hpp"
• Allow raw read & write operations in synchronization interface
• Group subscriptions are no longer attachables

Version 0.2.1

2012-07-02

• More efficient behavior implementation
• Relaxed definition of become to accept const lvalue references as well

Version 0.2

2012-06-29

• Removed become_void [use quit instead]
• Renamed future_send to delayed_send
• Removed stacked_actor; moved functionality to event_based_actor
• Renamed fsm_actor to sb_actor
• Refactored spawn: spawn(new T(...)) => spawn<T>(...)
• Implemented become & unbecome for context-switching & thread-mapped actors
• Moved become & unbecome to local_actor
• Ported libcppa from <ucontext.h> to Boost.Context library