Updated NEWS for 0.2.1 release
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Tatsuhiro Tsujikawa
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NEWS
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NEWS
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spdylay 0.2.0
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spdylay 0.2.1
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=============
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Release Note
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------------
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This release adds several new APIs. The spdylay_gzip API is suitable
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for inflating compressed entity body from the remote endpoint. The
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spdylay_submit_window_update() is added to send WINDOW_UPDATE frame by
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the application. The spdylay_session_set_option() is a new function
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to set options to the library. Currently,
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SPDYLAY_OPT_NO_AUTO_WINDOW_UPDATE option is available. If it is set,
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the library does not send WINDOW_UPDATE automatically. The application
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should send WINDOW_UPDATE using spdylay_submit_window_update(). The
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spdylay_strerror() is added and it returns string describing the given
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error code. The following new callback functions are added:
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spdylay_on_unknown_ctrl_recv_callback and
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spdylay_on_ctrl_recv_parse_error_callbacks. They are useful for
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debugging and logging errors.
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This release fixes the bug that closing a stream causes memory leak
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and it also makes some other streams disappear.
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Some changes are made to exsiting interfaces. The status_code
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argument was added to spdylay_on_invalid_ctrl_recv_callback.
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FRAME_TOO_LARGE was renamed as SPDYLAY_FRAME_TOO_LARGE.
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The delta_window_size given in spdylay_submit_window_update() is now
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not bounded by internal received data size. The application is now
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responsible to keep the resulting window size under the maximum value
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described in the SPDY/3 specification.
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spdylay_data_source_read_callback can now return
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SPDYLAY_ERR_TEMPORAL_CALLBACK_FAILURE to signal stream error.
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Previously, this function can only return SPDYLAY_ERR_CALLBACK_FAILURE
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on error, which signals session error.
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Since SPDY/3 is now becoming mainline protocol,
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spdylay_select_next_protocol() now prefers spdy/3 to spdy/2.
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Some bug fixes are made in flow control and handling max concurrent
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streams.
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For example programs, the usage output was cleaned up. The -w option
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is added to spdycat. This option sets the initial window size bits.
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spdycat and spdyd prefer spdy/3 to spdy/2 from this release.
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The pkg-config file now includes zlib in Requires.private.
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The SPDY client spdycat gets new option -a and -s. The -a option
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makes spdycat download assets such as CSS and images linked from the
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downloaded resource. The -s option shows statistics such as elapsed
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time from the handshake.
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Changes
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-------
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* Renamed index in spdylay_get_credential_cert prototype to idx This
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is because compiler may warn that name `index` shadows global
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declaration if the application code uses the prototype argument
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names as is.
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* Made spdylay_submit_window_update() not be bounded by
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recv_window_size. Current SPDY/3 spec does not clearly prohibit to
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send delta_window_size which makes resulting window size more than
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initial window size. For this reason, spdylay_submit_window_update()
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can send delta_window_size in [1, (1 << 31)-1], inclusive, without
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bounded by stream's recv_window_size. Of course, the application is
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now responsible to keep the resulting window size <= (1 << 31)-1.
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* Bumped up the library version to 1.0.0 because of the API changes.
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spdylay_submit_window_update() now returns
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SPDYLAY_ERR_INVALID_ARGUMENT if delta_window_size is 0 or negative.
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* Prefer spdy/3 to spdy/2 in spdyd
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* Included README.rst in the manual.
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* Prefer spdy/3 to spdy/2 in spdylay_select_next_protocol()
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* Added -s, --stat option to print statistics. Print, for each
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stream, time delta from SSL/TLS handshake and each SYN_STREAM. The
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time deltas are measured after SYN_REPLY received and all data
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received. For example, the following output:
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* spdylay_data_source_read_callback can now return
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SPDYLAY_ERR_TEMPORAL_CALLBACK_FAILURE to signal stream error. The
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existing SPDYLAY_ERR_CALLBACK_FAILURE signals session error.
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SYN_REPLY: X(Y)
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* Renamed error as error_code in spdylay_on_ctrl_not_send_callback
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prototype
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means SYN_REPLY was received X ms after SSL/TLS handshake and Y ms
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after the corresponding SYN_STREAM was sent.
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* Bring back deferred DATA to the outbound queue when SETTINGS with
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INITIAL_WINDOW_SIZE is received and the window size becomes
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positive.
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* Added -a, --get-asserts option to spdycat. If this option is used,
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spdycat also downloads assets such as stylesheets, images and script
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files linked from the downloaded resource. They are queued in the
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same SPDY session.
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* Fixed the bug that spdylay_recv does not return SPDYLAY_ERR_EOF.
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* Renamed FRAME_TOO_LARGE as SPDYLAY_FRAME_TOO_LARGE
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* Added status_code argument to spdylay_on_invalid_ctrl_recv_callback
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* Added spdylay_strerror() public API. It returns string describing
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the given error code.
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* Added spdylay_on_unknown_ctrl_recv_callback. This callback function
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is invoked when the unknown frame type is received. Added debug
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output using this callback to spdycat.
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* Added spdylay_on_ctrl_recv_parse_error_callback. This callback
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function is invoked when the received frame data could not be parsed
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correctly. Added debug output using this callback to spdycat.
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* Added spdylay_submit_window_update() public API.
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* Added spdylay_session_set_option() public API. Currently,
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SPDYLAY_OPT_NO_AUTO_WINDOW_UPDATE option is available. If it is set,
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the library does not send WINDOW_UPDATE automatically. The
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application should send WINDOW_UPDATE using
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spdylay_submit_window_update().
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* Added -w, --window-bits option to spdycat. This option sets the
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initial window size bits.
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* Having the number of server and client streams be limited separately
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using SETTINGS_MAX_CONCURRENT_STREAMS
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* Use local_settings' INITIAL_WINDOW_SIZE when deciding to send
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WINDOW_UPDATE.
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* Added spdylay_gzip API. They are suitable for inflating compressed
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entity body from the remote endpoint.
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* Added SPDY client example written in C.
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* Added zlib to Requires.private and updated Description
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* Fixed the bug that erase_rotate_recur() erases parent node.
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