When the parser is presented with an input buffer
sequence with length greater than one, the input is
flattened using stack space instead of dynamic
allocation if the buffer size is no greater than 8192.
* Container interface more closely matches std::vector
* While preserving the invariant that duplicate fields
with the same case-insensitive name have their order
preserved.
read_size_helper can return zero if the buffer reaches
its maximum size, causing infinite loops in HTTP. The
function maybe_read_size_helper is provided to throw
an exception instead of returning a value for this case.
* frame_info struct is removed
* read_frame and async_read_frame return a bool indicating
if the frame is the last frame of the current message.
Actions Required:
* Remove the frame_info parameter from all read frame call sites
* Check the return value 'fin' for calls to read_frame
* Change ReadHandlers passed to async_read_frame to have
the signature void(error_code, bool fin), use the bool
to indicate if the frame is the last frame.
fix#446
* Read signatures no longer include `opcode`
* stream::got_binary and stream::got_text inform the caller if
the current incoming message is binary or text.
Actions Required:
* Remove the `opcode` reference parameter from calls to synchronous
and asynchronous read functions, replace the logic with calls to
stream::got_binary and stream::got_text instead.
fix#446
* The ping_callback option struct is removed.
Actions Required:
* Change call sites which use ping_callback with set_option to
call stream::ping_callback instead.
fix#446
* The write_buffer_size option struct is removed.
Actions Required:
* Change call sites which use write_buffer_size with set_option to
call stream::write_buffer_size instead.
fix#446
* The read_message_max option struct is removed.
Actions Required:
* Change call sites which use read_message_max with set_option to
call stream::read_message_max instead.
fix#446
* The read_buffer_size option struct is removed
Actions Required:
* Change call sites which use read_buffer_size with set_option to
call stream::read_buffer_size instead.
fix#446
* message_type is removed
Actions Required:
* Change call sites which use message_type with set_option
to call stream::binary or stream::text instead.
fix#374, fix#446
* auto_fragment option struct is removed
Actions Required:
* Change call sites which use auto_fragment with set_option
to call stream::auto_fragment instead.
fix#440
WARNING
multi_buffer constructor now takes a maximum size instead of the
"allocation size". This is a breaking change. The allocation size
feature is removed. To update calling code, remove the allocation
size parameter from call sites.
* multi_buffer now uses a geometric growth algorithm for better performance.
The static buffer is updated:
* reset() is no longer a member. Use b.consume(b.size()) instead.
* Simplified implementaton, uses asio instead of custom types
* Better stream performance: consuming the input makes room
available in the output. This class is now suitable for
HTTP reads.
These changes permit the static_buffer wrapper to adapt a user
memory buffer if desired, including a stack based array.
The static_buffer_n class may also be used for this purpose,
it comes with its own storage.
fix#431, fix#430
The read_some and async_read_some HTTP operations no longer
return the number of bytes that the caller should consume.
Instead, the bytes are automatically removed from the dynamic
buffer as indicated by the parser.
Vinnie Falco
Sacha
Niklas Schnelle