| [/ |
| / Copyright (c) 2003-2010 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
| / |
| / Distributed under the Boost Software License, Version 1.0. (See accompanying |
| / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| /] |
| |
| [section:history Revision History] |
| |
| [heading Asio 1.4.7 / Boost 1.45] |
| |
| * Fixed a problem on kqueue-based platforms where a `deadline_timer` may |
| never fire if the `io_service` is running in a background thread |
| ([@https://svn.boost.org/trac/boost/ticket/4568 #4568]). |
| * Fixed a const-correctness issue that prevented valid uses of |
| `has_service<>` from compiling |
| ([@https://svn.boost.org/trac/boost/ticket/4638 #4638]). |
| * Fixed MinGW cross-compilation |
| ([@https://svn.boost.org/trac/boost/ticket/4491 #4491]). |
| * Removed dependency on deprecated Boost.System functions |
| ([@https://svn.boost.org/trac/boost/ticket/4672 #4672]). |
| * Ensured `close()`\/`closesocket()` failures are correctly propagated |
| ([@https://svn.boost.org/trac/boost/ticket/4573 #4573]). |
| * Added a check for errors returned by `InitializeCriticalSectionAndSpinCount` |
| ([@https://svn.boost.org/trac/boost/ticket/4574 #4574]). |
| * Added support for hardware flow control on QNX |
| ([@https://svn.boost.org/trac/boost/ticket/4625 #4625]). |
| * Always use `pselect()` on HP-UX, if it is available |
| ([@https://svn.boost.org/trac/boost/ticket/4578 #4578]). |
| * Ensured handler arguments are passed as lvalues |
| ([@https://svn.boost.org/trac/boost/ticket/4744 #4744]). |
| * Fixed Windows build when thread support is disabled |
| ([@https://svn.boost.org/trac/boost/ticket/4680 #4680]). |
| * Fixed a Windows-specific problem where `deadline_timer` objects with expiry |
| times set more than 5 minutes in the future may never expire |
| ([@https://svn.boost.org/trac/boost/ticket/4745 #4745]). |
| * Fixed the `resolver` backend on BSD platforms so that an empty service name |
| resolves to port number `0`, as per the documentation |
| ([@https://svn.boost.org/trac/boost/ticket/4690 #4690]). |
| * Fixed read operations so that they do not accept buffer sequences of type |
| `const_buffers_1` ([@https://svn.boost.org/trac/boost/ticket/4746 #4746]). |
| * Redefined `Protocol` and `id` to avoid clashing with Objective-C++ keywords |
| ([@https://svn.boost.org/trac/boost/ticket/4191 #4191]). |
| * Fixed a `vector` reallocation performance issue that can occur when there are |
| many active `deadline_timer` objects |
| ([@https://svn.boost.org/trac/boost/ticket/4780 #4780]). |
| * Fixed the kqueue backend so that it compiles on NetBSD |
| ([@https://svn.boost.org/trac/boost/ticket/4662 #4662]). |
| * Fixed the socket `io_control()` implementation on 64-bit Mac OS X and BSD |
| platforms ([@https://svn.boost.org/trac/boost/ticket/4782 #4782]). |
| * Fixed a Windows-specific problem where failures from `accept()` are |
| incorrectly treated as successes |
| ([@https://svn.boost.org/trac/boost/ticket/4859 #4859]). |
| * Deprecated the separate compilation header `<boost/asio/impl/src.cpp>` in |
| favour of `<boost/asio/impl/src.hpp>` |
| ([@https://svn.boost.org/trac/boost/ticket/4560 #4560]). |
| |
| [heading Asio 1.4.6 / Boost 1.44] |
| |
| * Reduced compile times. (Note that some programs may need to add additional |
| `#include`s, e.g. if the program uses `boost::array` but does not explicitly |
| include `<boost/array.hpp>`.) |
| * Reduced the size of generated code. |
| * Refactored `deadline_timer` implementation to improve performance. |
| * Improved multiprocessor scalability on Windows by using a dedicated hidden |
| thread to wait for timers. |
| * Improved performance of `asio::streambuf` with `async_read()` and |
| `async_read_until()`. These read operations now use the existing capacity of |
| the `streambuf` when reading, rather than limiting the read to 512 bytes. |
| * Added optional separate compilation. To enable, add |
| `#include <boost/asio/impl/src.cpp>` to one source file in a program, then |
| build the program with `BOOST_ASIO_SEPARATE_COMPILATION` defined in the |
| project\/compiler settings. Alternatively, `BOOST_ASIO_DYN_LINK` may be |
| defined to build a separately-compiled Asio as part of a shared library. |
| * Added new macro `BOOST_ASIO_DISABLE_FENCED_BLOCK` to permit the disabling of |
| memory fences around completion handlers, even if thread support is enabled. |
| * Reworked timeout examples to better illustrate typical use cases. |
| * Ensured that handler arguments are passed as `const` types. |
| * Fixed incorrect parameter order in `null_buffers` variant of `async_send_to` |
| ([@https://svn.boost.org/trac/boost/ticket/4170 #4170]). |
| * Ensured `unsigned char` is used with `isdigit` in `getaddrinfo` emulation |
| ([@https://svn.boost.org/trac/boost/ticket/4201 #4201]). |
| * Fixed handling of very small but non-zero timeouts |
| ([@https://svn.boost.org/trac/boost/ticket/4205 #4205]). |
| * Fixed crash that occurred when an empty buffer sequence was passed to a |
| composed read or write operation. |
| * Added missing `operator+` overload in `buffers_iterator` |
| ([@https://svn.boost.org/trac/boost/ticket/4382 #4382]). |
| * Implemented cancellation of `null_buffers` operations on Windows. |
| |
| [heading Asio 1.4.5 / Boost 1.43] |
| |
| * Improved performance. |
| * Reduced compile times. |
| * Reduced the size of generated code. |
| * Extended the guarantee that background threads don't call user code to all |
| asynchronous operations |
| ([@https://svn.boost.org/trac/boost/ticket/3923 #3923]). |
| * Changed to use edge-triggered epoll on Linux. |
| * Changed to use `timerfd` for dispatching timers on Linux, when available. |
| * Changed to use one-shot notifications with kqueue on Mac OS X and BSD |
| platforms. |
| * Added a bitmask type `ip::resolver_query_base::flags` as per the TR2 proposal. |
| This type prevents implicit conversion from `int` to `flags`, allowing the |
| compiler to catch cases where users incorrectly pass a numeric port number as |
| the service name. |
| * Added `#define NOMINMAX` for all Windows compilers. Users can define |
| `BOOST_ASIO_NO_NOMINMAX` to suppress this definition |
| ([@https://svn.boost.org/trac/boost/ticket/3901 #3901]). |
| * Fixed a bug where 0-byte asynchronous reads were incorrectly passing an |
| `error::eof` result to the completion handler |
| ([@https://svn.boost.org/trac/boost/ticket/4023 #4023]). |
| * Changed the `io_control()` member functions to always call `ioctl` on the |
| underlying descriptor when modifying blocking mode |
| ([@https://svn.boost.org/trac/boost/ticket/3307 #3307]). |
| * Changed the resolver implementation to longer require the typedefs |
| `InternetProtocol::resolver_query` and `InternetProtocol::resolver_iterator`, |
| as neither typedef is part of the documented `InternetProtocol` requirements. |
| The corresponding typedefs in the `ip::tcp`, `ip::udp` and `ip::icmp` classes |
| have been deprecated. |
| * Fixed out-of-band handling for reactors not based on `select()`. |
| * Added new `BOOST_ASIO_DISABLE_THREADS` macro that allows Asio's threading |
| support to be independently disabled. |
| * Minor documentation improvements. |
| |
| [heading Asio 1.4.4 / Boost 1.42] |
| |
| * Added a new HTTP Server 4 example illustrating the use of stackless coroutines |
| with Asio. |
| * Changed handler allocation and invocation to use `boost::addressof` to get the |
| address of handler objects, rather than applying `operator&` directly |
| ([@https://svn.boost.org/trac/boost/ticket/2977 #2977]). |
| * Restricted MSVC buffer debugging workaround to 2008, as it causes a crash with |
| 2010 beta 2 ([@https://svn.boost.org/trac/boost/ticket/3796 #3796], |
| [@https://svn.boost.org/trac/boost/ticket/3822 #3822]). |
| * Fixed a problem with the lifetime of handler memory, where Windows needs the |
| `OVERLAPPED` structure to be valid until both the initiating function call |
| has returned and the completion packet has been delivered. |
| * Don't block signals while performing system calls, but instead restart the |
| calls if they are interrupted. |
| * Documented the guarantee made by strand objects with respect to order of |
| handler invocation. |
| * Changed strands to use a pool of implementations, to make copying of strands |
| cheaper. |
| * Ensured that kqueue support is enabled for BSD platforms |
| ([@https://svn.boost.org/trac/boost/ticket/3626 #3626]). |
| * Added a `boost_` prefix to the `extern "C"` thread entry point function |
| ([@https://svn.boost.org/trac/boost/ticket/3809 #3809]). |
| * In `getaddrinfo` emulation, only check the socket type (`SOCK_STREAM` or |
| `SOCK_DGRAM`) if a service name has been specified. This should allow the |
| emulation to work with raw sockets. |
| * Added a workaround for some broken Windows firewalls that make a socket |
| appear bound to 0.0.0.0 when it is in fact bound to 127.0.0.1. |
| * Applied a fix for reported excessive CPU usage under Solaris |
| ([@https://svn.boost.org/trac/boost/ticket/3670 #3670]). |
| * Added some support for platforms that use older compilers such as g++ 2.95 |
| ([@https://svn.boost.org/trac/boost/ticket/3743 #3743]). |
| |
| [heading Asio 1.4.3 / Boost 1.40] |
| |
| * Added a new ping example to illustrate the use of ICMP sockets. |
| * Changed the `buffered*_stream<>` templates to treat 0-byte reads and writes as |
| no-ops, to comply with the documented type requirements for `SyncReadStream`, |
| `AsyncReadStream`, `SyncWriteStream` and `AsyncWriteStream`. |
| * Changed some instances of the `throw` keyword to `boost::throw_exception()` to |
| allow Asio to be used when exception support is disabled. Note that the SSL |
| wrappers still require exception support |
| ([@https://svn.boost.org/trac/boost/ticket/2754 #2754]). |
| * Made Asio compatible with the OpenSSL 1.0 beta |
| ([@https://svn.boost.org/trac/boost/ticket/3256 #3256]). |
| * Eliminated a redundant system call in the Solaris [^/dev/poll] backend. |
| * Fixed a bug in resizing of the bucket array in the internal hash maps |
| ([@https://svn.boost.org/trac/boost/ticket/3095 #3095]). |
| * Ensured correct propagation of the error code when a synchronous accept fails |
| ([@https://svn.boost.org/trac/boost/ticket/3216 #3216]). |
| * Ensured correct propagation of the error code when a synchronous read or |
| write on a Windows HANDLE fails. |
| * Fixed failures reported when `_GLIBCXX_DEBUG` is defined |
| ([@https://svn.boost.org/trac/boost/ticket/3098 #3098]). |
| * Fixed custom memory allocation support for timers |
| ([@https://svn.boost.org/trac/boost/ticket/3107 #3107]). |
| * Tidied up various warnings reported by g++ |
| ([@https://svn.boost.org/trac/boost/ticket/1341 #1341], |
| [@https://svn.boost.org/trac/boost/ticket/2618 #2618]). |
| * Various documentation improvements, including more obvious hyperlinks to |
| function overloads, header file information, examples for the handler type |
| requirements, and adding enum values to the index |
| ([@https://svn.boost.org/trac/boost/ticket/3157 #3157], |
| [@https://svn.boost.org/trac/boost/ticket/2620 #2620]). |
| |
| [heading Asio 1.4.2 / Boost 1.39] |
| |
| * Implement automatic resizing of the bucket array in the internal hash maps. |
| This is to improve performance for very large numbers of asynchronous |
| operations and also to reduce memory usage for very small numbers. A new |
| macro `BOOST_ASIO_HASH_MAP_BUCKETS` may be used to tweak the sizes used for |
| the bucket arrays. (N.B. this feature introduced a bug which was fixed in |
| Asio 1.4.3 / Boost 1.40.) |
| * Add performance optimisation for the Windows IOCP backend for when no timers |
| are used. |
| * Prevent locale settings from affecting formatting of TCP and UDP endpoints |
| ([@https://svn.boost.org/trac/boost/ticket/2682 #2682]). |
| * Fix a memory leak that occurred when an asynchronous SSL operation's |
| completion handler threw an exception |
| ([@https://svn.boost.org/trac/boost/ticket/2910 #2910]). |
| * Fix the implementation of `io_control()` so that it adheres to the |
| documented type requirements for IoControlCommand |
| ([@https://svn.boost.org/trac/boost/ticket/2820 #2820]). |
| * Fix incompatibility between Asio and ncurses.h |
| ([@https://svn.boost.org/trac/boost/ticket/2156 #2156]). |
| * On Windows, specifically handle the case when an overlapped `ReadFile` call |
| fails with `ERROR_MORE_DATA`. This enables a hack where a |
| `windows::stream_handle` can be used with a message-oriented named pipe |
| ([@https://svn.boost.org/trac/boost/ticket/2936 #2936]). |
| * Fix system call wrappers to always clear the error on success, as POSIX |
| allows successful system calls to modify errno |
| ([@https://svn.boost.org/trac/boost/ticket/2953 #2953]). |
| * Don't include termios.h if `BOOST_ASIO_DISABLE_SERIAL_PORT` is defined |
| ([@https://svn.boost.org/trac/boost/ticket/2917 #2917]). |
| * Cleaned up some more MSVC level 4 warnings |
| ([@https://svn.boost.org/trac/boost/ticket/2828 #2828]). |
| * Various documentation fixes |
| ([@https://svn.boost.org/trac/boost/ticket/2871 #2871]). |
| |
| [heading Asio 1.4.1 / Boost 1.38] |
| |
| * Improved compatibility with some Windows firewall software. |
| * Ensured arguments to `windows::overlapped_ptr::complete()` are correctly |
| passed to the completion handler |
| ([@https://svn.boost.org/trac/boost/ticket/2614 #2614]). |
| * Fixed a link problem and multicast failure on QNX |
| ([@https://svn.boost.org/trac/boost/ticket/2504 #2504], |
| [@https://svn.boost.org/trac/boost/ticket/2530 #2530]). |
| * Fixed a compile error in SSL support on MinGW / g++ 3.4.5. |
| * Drop back to using a pipe for notification if eventfd is not available at |
| runtime on Linux ([@https://svn.boost.org/trac/boost/ticket/2683 #2683]). |
| * Various minor bug and documentation fixes |
| ([@https://svn.boost.org/trac/boost/ticket/2534 #2534], |
| [@https://svn.boost.org/trac/boost/ticket/2541 #2541], |
| [@https://svn.boost.org/trac/boost/ticket/2607 #2607], |
| [@https://svn.boost.org/trac/boost/ticket/2617 #2617], |
| [@https://svn.boost.org/trac/boost/ticket/2619 #2619]). |
| |
| [heading Asio 1.4.0 / Boost 1.37] |
| |
| * Enhanced CompletionCondition concept with the signature |
| `size_t CompletionCondition(error_code ec, size_t total)`, where the return |
| value indicates the maximum number of bytes to be transferred on the next |
| read or write operation. (The old CompletionCondition signature is still |
| supported for backwards compatibility). |
| * New windows::overlapped_ptr class to allow arbitrary overlapped I/O |
| functions (such as TransmitFile) to be used with Asio. |
| * On recent versions of Linux, an eventfd descriptor is now used (rather than |
| a pipe) to interrupt a blocked select/epoll reactor. |
| * Added const overloads of lowest_layer(). |
| * Synchronous read, write, accept and connect operations are now thread safe |
| (meaning that it is now permitted to perform concurrent synchronous |
| operations on an individual socket, if supported by the OS). |
| * Reactor-based io_service implementations now use lazy initialisation to |
| reduce the memory usage of an io_service object used only as a message |
| queue. |
| |
| [heading Asio 1.2.0 / Boost 1.36] |
| |
| * Added support for serial ports. |
| * Added support for UNIX domain sockets. |
| * Added support for raw sockets and ICMP. |
| * Added wrappers for POSIX stream-oriented file descriptors (excluding regular |
| files). |
| * Added wrappers for Windows stream-oriented `HANDLE`s such as named pipes |
| (requires `HANDLE`s that work with I/O completion ports). |
| * Added wrappers for Windows random-access `HANDLE`s such as files (requires |
| `HANDLE`s that work with I/O completion ports). |
| * Added support for reactor-style operations (i.e. they report readiness but |
| perform no I/O) using a new `null_buffers` type. |
| * Added an iterator type for bytewise traversal of buffer sequences. |
| * Added new `read_until()` and `async_read_until()` overloads that take a |
| user-defined function object for locating message boundaries. |
| * Added an experimental two-lock queue (enabled by defining |
| `BOOST_ASIO_ENABLE_TWO_LOCK_QUEUE`) that may provide better `io_service` |
| scalability across many processors. |
| * Various fixes, performance improvements, and more complete coverage of the |
| custom memory allocation support. |
| |
| [heading Asio 1.0.0 / Boost 1.35] |
| |
| First release of Asio as part of Boost. |
| |
| [endsect] |
