Commit Graph

86 Commits

Author SHA1 Message Date
Tatsuhiro Tsujikawa 01af6ea70c Remove ALTSVC related code
HTTP/2 and HPACK are going to be published as RFC, but ALTSVC is still
in draft state.  To make our API stable, it would be better to remove
ALTSVC API for 1.0.0 release.
2015-04-05 23:15:20 +09:00
Tatsuhiro Tsujikawa 9eff511c5e Add nghttp2_send_data_callback to send DATA payload without copying
To avoid buffer copy in nghttp2_data_source_read_callback, this commit
introduces NGHTTP2_DATA_FLAG_NO_COPY and nghttp2_send_data_callback.
By using NGHTTP2_DATA_FLAG_NO_COPY in
nghttp2_data_source_read_callback, application can avoid to copy
application data to given buffer.  Instead, application has to
implement nghttp2_send_data_callback to send complete DATA frame by
itself.  We see noticeable performance increase in nghttpd and
tiny-nghttpd using this new feature.  On the other hand, nghttpx does
not show such difference, probably because buffer copy is not
bottleneck.  Using nghttp2_send_data_callback adds complexity, so it
is recommended to measure the performance to see whether this extra
complexity worth it.
2015-04-04 21:23:50 +09:00
Tatsuhiro Tsujikawa 661fb2eb0e NULL-terminate name and value in nghttp2_nv
Guaranteeing NULL-termination is very useful when name or value are
used with C functions which requires NULL-terminated string.
2015-03-23 23:25:57 +09:00
Tatsuhiro Tsujikawa 354de30874 Make default min frame payload size to 16K
Previously we use 16K - 9 bytes (frame header) as frame payload size
so that whole frame fits in 1 TLS record size (16K).  But it turns out
that in proxy use case, we will receive 16K payload from backend and
we have to split it into 2 odd looking frames (16K - 9 and 9), and
latter is highly inefficient.  To avoid this situation, we decided to
use min frame payload size to 16K.  Since we operates on TLS as stream
of data, we are not so much restricted in its record size.
2015-02-12 00:09:18 +09:00
Tatsuhiro Tsujikawa c0ffed7788 Support custom memory allocator
nghttp2_mem structure is introduced to hold custom memory allocator
functions and user supplied pointer.  nghttp2_mem object can be passed
to nghttp2_session_client_new3(), nghttp2_session_server_new3(),
nghttp2_hd_deflate_new2() and nghttp2_hd_inflate_new2() to replace
standard malloc(), free(), calloc() and realloc().  nghttp2_mem
structure has user supplied pointer mem_user_data which can be used as
per session/object memory pool.
2014-12-08 00:55:55 +09:00
Tatsuhiro Tsujikawa 21b48d24e4 Remove altsvc 2014-12-07 23:11:54 +09:00
Tatsuhiro Tsujikawa b1f807abd1 Reformat lines with clang-format-3.5 2014-11-27 23:56:30 +09:00
Tatsuhiro Tsujikawa 1d138accb9 Unify DATA and other frames in nghttp2_outbound_item and save malloc() 2014-10-03 21:31:37 +09:00
Tatsuhiro Tsujikawa b4bb6a6101 Add reserved bits to header and frames
Currently reserved bit is always set to 0.  The addition of reserved
bit is for future extension.
2014-08-28 23:30:42 +09:00
Tatsuhiro Tsujikawa 31528b6267 Use uint32_t for HTTP/2 error_code
h2-14 now allows extensions to define new error codes.  To allow
application callback to access such error codes, we uses uint32_t as
error_code type for structs and function parameters.  Previously we
treated unknown error code as INTERNAL_ERROR, but this change removes
this and unknown error code is passed to application callback as is.
2014-08-25 21:24:04 +09:00
Scott Mitchell 3cd08251ca Send window size API extension
Motivation:

The send window size is currently fixed by a macro at compile time.
In order for users of the library to impact the send window size they
would have to change a macro at compile time. The window size may be dynamic
depending on the environment and deployment scheme. The library users
currently have no way to change this parameter.

Modifications:

Add a new optional callback method which is called before data is sent to
obtain the desired send window size. The callback return value will be
subject to a range check for the current session, stream, and settings
limits defined by flow control.

Result:
Library users have control over their send sizes.
2014-08-24 11:32:44 -04:00
Tatsuhiro Tsujikawa 77374ac6e2 Implement SETTINGS_MAX_FRAME_SIZE and SETTINGS_MAX_HEADER_LIST_SIZE 2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa 8d5422c9bb Remove check for incoming header block size
The application should be responsible for the size of incoming header
block size.  Framing layer just passes everything (we have size limit
for one header/field though) to application.
2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa 63398f30dd Extend frame length field to 24 bits 2014-07-31 23:05:52 +09:00
Tatsuhiro Tsujikawa 593485c652 Put a limit for total contiguous headers length currently receiving 2014-07-02 22:25:32 +09:00
Tatsuhiro Tsujikawa ad60a18fb9 Remove BLOCKED frame 2014-06-24 00:22:41 +09:00
Tatsuhiro Tsujikawa 9b174bf5c9 Fix compile error with -Wshorten-64-to-32
The original patch was contributed by Alexis La Goutte
2014-06-11 23:37:16 +09:00
Tatsuhiro Tsujikawa dacc9b2f1c Separate extension frames from core frames
ALTSVC and BLOCKED frames are now extension frames.  To add new
extension frame without modifying nghttp2_frame union, which causes so
name bump, we separated extension frames from core frames.
nghttp2_frame includes generic nghttp2_extension.  The payload member
of nghttp2_extension will point to the structure of extension frame
payload.  The frame types of extension frames are defined in
nghttp2_ext_frame_type.
2014-06-09 23:16:54 +09:00
Tatsuhiro Tsujikawa d4602a0991 Remove reserved field from ALTSVC frame 2014-06-07 19:10:09 +09:00
Tatsuhiro Tsujikawa c46d3dafc6 Remove PAD_HIGH and Pad High field
CONTINUATION now doesn't have padding.
2014-06-07 18:15:36 +09:00
Tatsuhiro Tsujikawa d402ba6fa2 Make settings_id 2 bytes field 2014-06-07 16:37:29 +09:00
Tatsuhiro Tsujikawa 78a55935ac Define constant for the length of priority related fields 2014-05-22 21:41:43 +09:00
Tatsuhiro Tsujikawa 2aa84019c7 Define constants for ALTSVC frame parsing 2014-05-22 21:36:12 +09:00
Tatsuhiro Tsujikawa bc6d952361 Check max SETTINGS_HEADER_TABLE_SIZE in nghttp2_iv_check()
Hide NGHTTP2_MAX_HEADER_TABLE_SIZE from public API.  Now it is defined
as ((1u << 31) - 1) in nghttp2_frame.h, which is sufficiently big
enough.
2014-05-12 21:28:49 +09:00
Tatsuhiro Tsujikawa e8de437d5c Return new stream ID from nghttp2_submit_{request, headers, push_promise}
Previously stream ID was assigned just before HEADERS or PUSH_PROMISE
was serialized and nghttp2_submit_{request, headers, push_promise} did
not return stream ID.  The application has to check assigned stream ID
using before_frame_send_callback.  Now it is apparent that priority is
meant to DATA transfer only.  Also application can reorder the
requests if it wants. Therefore we can assign stream ID in
nghttp2_submit_* functions and return stream ID from them.  With this
change, now application does not have to check stream ID using
before_frame_send_callback and its code will be simplified.
2014-05-07 23:24:07 +09:00
Tatsuhiro Tsujikawa 56d6784d8d nghttp2_frame: Return NGHTTP2_ERR_FRAME_SIZE_ERROR instead of .._BUFFER_ERROR
Also updates docs
2014-05-06 18:02:26 +09:00
Tatsuhiro Tsujikawa 6bb410d603 Implement BLOCKED frame 2014-04-25 00:38:24 +09:00
Tatsuhiro Tsujikawa ac86b51e37 Implement simplified dependency based priority 2014-04-15 22:55:07 +09:00
Tatsuhiro Tsujikawa ffcbffc28b Revert f763d76110 2014-04-06 17:56:48 +09:00
Tatsuhiro Tsujikawa f763d76110 Revert NGHTTP2_DATA_PAYLOADLEN to 4086 2014-04-05 23:42:37 +09:00
Tatsuhiro Tsujikawa 2685e3405f Rename NGHTTP2_DATA_PAYLOAD_LENGTH as NGHTTP2_DATA_PAYLOADLEN 2014-04-02 20:35:07 +09:00
Tatsuhiro Tsujikawa 9c4c99bf96 Adjust transmission frame buffer size to support maximum payload size 2014-04-02 20:33:01 +09:00
Tatsuhiro Tsujikawa f785e56dba Implement ALTSVC frame 2014-04-01 21:47:51 +09:00
Tatsuhiro Tsujikawa ab2dc5967d Replace HTTP/2.0 with HTTP/2 2014-03-30 19:26:37 +09:00
Tatsuhiro Tsujikawa f7162ab702 Implement dependency based priority 2014-03-30 01:24:16 +09:00
Tatsuhiro Tsujikawa e1eebf08fb Support DEBUG_DATA in GOAWAY again 2014-03-22 18:59:59 +09:00
Tatsuhiro Tsujikawa d07bb1ddff Rework outbound frame buffers 2014-03-13 22:11:02 +09:00
Tatsuhiro Tsujikawa 0666a73e10 Remove nghttp2_buffer 2014-03-11 21:20:51 +09:00
Tatsuhiro Tsujikawa 74f899fc01 Replace NGHTTP2_MAX_FRAME_LENGTH with NGHTTP2_MAX_PAYLOADLEN 2014-03-11 02:01:08 +09:00
Tatsuhiro Tsujikawa e803c6b65e Replace NGHTTP2_FRAME_HEAD_LENGTH with NGHTTP2_FRAME_HDLEN 2014-03-11 01:55:42 +09:00
Tatsuhiro Tsujikawa 358b4386d3 Introduce nghttp2_buf to ease buffer management 2014-03-11 01:47:38 +09:00
Tatsuhiro Tsujikawa 547d6d1fb5 Use 4086 as max DATA payload size to make DATA frame fit into 4K buffer 2014-03-05 22:48:17 +09:00
Tatsuhiro Tsujikawa d1c1deaf03 Add promised_stream_user_data parameter to nghttp2_submit_push_promise
This is very useful to associate application specific data to promised
stream.

nghttp2_nv_array_copy now does not complain the header field is large.
2014-02-25 00:26:12 +09:00
Tatsuhiro Tsujikawa 3f3f258cd6 Add padding to PUSH_PROMISE 2014-02-15 16:30:43 +09:00
Tatsuhiro Tsujikawa 78d202ac30 Callback based padding from application
Now previous padding options are removed and instead we added
select_padding_callback to select padding length for each frame
by application. If this callback is not implemented by application,
no padding is added.

This change also fixes the broken session_detect_idle_stream()
if stream_id is our side.
2014-02-11 15:28:44 +09:00
Tatsuhiro Tsujikawa 68b5ffc1dc Rename padding related names 2014-02-09 21:46:15 +09:00
Tatsuhiro Tsujikawa dffa078c11 Update doc 2014-02-09 16:49:24 +09:00
Tatsuhiro Tsujikawa 1db2195389 Implement padding for HEADERS and CONTINUATION 2014-02-09 15:17:26 +09:00
Tatsuhiro Tsujikawa 2ff3d97b2e Add nghttp2_frame_add_pad to deal with adding pads 2014-02-09 12:39:43 +09:00
Tatsuhiro Tsujikawa 814d0f76f3 Implement DATA frame padding 2014-02-08 00:23:18 +09:00