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@ -748,7 +748,7 @@ typedef enum {
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/**
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* Indicates that END_STREAM flag must not be set even if
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* NGHTTP2_DATA_FLAG_EOF is set. Usually this flag is used to send
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* trailer header fields with `nghttp2_submit_request()` or
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* trailer fields with `nghttp2_submit_request()` or
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* `nghttp2_submit_response()`.
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*/
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NGHTTP2_DATA_FLAG_NO_END_STREAM = 0x02,
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@ -784,13 +784,13 @@ typedef enum {
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* :enum:`NGHTTP2_FLAG_END_STREAM` set, and
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* :enum:`NGHTTP2_DATA_FLAG_EOF` flag is set to |*data_flags|, DATA
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* frame will have END_STREAM flag set. Usually, this is expected
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* behaviour and all are fine. One exception is send trailer header
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* fields. You cannot send trailers after sending frame with
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* END_STREAM set. To avoid this problem, one can set
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* behaviour and all are fine. One exception is send trailer fields.
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* You cannot send trailer fields after sending frame with END_STREAM
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* set. To avoid this problem, one can set
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* :enum:`NGHTTP2_DATA_FLAG_NO_END_STREAM` along with
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* :enum:`NGHTTP2_DATA_FLAG_EOF` to signal the library not to set
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* END_STREAM in DATA frame. Then application can use
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* `nghttp2_submit_trailer()` to send trailers.
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* `nghttp2_submit_trailer()` to send trailer fields.
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* `nghttp2_submit_trailer()` can be called inside this callback.
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*
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* If the application wants to postpone DATA frames (e.g.,
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@ -849,9 +849,9 @@ typedef struct {
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*
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* The category of HEADERS, which indicates the role of the frame. In
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* HTTP/2 spec, request, response, push response and other arbitrary
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* headers (e.g., trailers) are all called just HEADERS. To give the
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* application the role of incoming HEADERS frame, we define several
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* categories.
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* headers (e.g., trailer fields) are all called just HEADERS. To
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* give the application the role of incoming HEADERS frame, we define
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* several categories.
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*/
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typedef enum {
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/**
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@ -1499,7 +1499,7 @@ typedef int (*nghttp2_on_stream_close_callback)(nghttp2_session *session,
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* NGHTTP2_HCAT_REQUEST``. If |session| is configured as server side,
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* ``frame->headers.cat`` is either ``NGHTTP2_HCAT_REQUEST``
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* containing request headers or ``NGHTTP2_HCAT_HEADERS`` containing
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* trailer headers and never get PUSH_PROMISE in this callback.
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* trailer fields and never get PUSH_PROMISE in this callback.
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*
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* For the client applications, ``frame->hd.type`` is either
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* ``NGHTTP2_HEADERS`` or ``NGHTTP2_PUSH_PROMISE``. In case of
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@ -1511,7 +1511,7 @@ typedef int (*nghttp2_on_stream_close_callback)(nghttp2_session *session,
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* non-final response code and finally client gets exactly one HEADERS
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* frame with ``frame->headers.cat == NGHTTP2_HCAT_HEADERS``
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* containing final response headers (non-1xx status code). The
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* trailer headers also has ``frame->headers.cat ==
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* trailer fields also has ``frame->headers.cat ==
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* NGHTTP2_HCAT_HEADERS`` which does not contain any status code.
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*
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* Returning :enum:`NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE` will close
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@ -3255,7 +3255,7 @@ nghttp2_submit_response(nghttp2_session *session, int32_t stream_id,
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/**
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* @function
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*
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* Submits trailer HEADERS against the stream |stream_id|.
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* Submits trailer fields HEADERS against the stream |stream_id|.
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*
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* The |nva| is an array of name/value pair :type:`nghttp2_nv` with
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* |nvlen| elements. The application is responsible not to include
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@ -3274,26 +3274,26 @@ nghttp2_submit_response(nghttp2_session *session, int32_t stream_id,
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* :type:`nghttp2_on_frame_send_callback` or
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* :type:`nghttp2_on_frame_not_send_callback` is called.
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*
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* For server, trailer must be followed by response HEADERS or
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* response DATA. The library does not check that response HEADERS
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* has already sent and if `nghttp2_submit_trailer()` is called before
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* any response HEADERS submission (usually by
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* `nghttp2_submit_response()`), the content of |nva| will be sent as
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* response headers, which will result in error.
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* For server, trailer fields must follow response HEADERS or response
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* DATA with END_STREAM flag set. The library does not enforce this
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* requirement, and applications should do this for themselves. If
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* `nghttp2_submit_trailer()` is called before any response HEADERS
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* submission (usually by `nghttp2_submit_response()`), the content of
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* |nva| will be sent as response headers, which will result in error.
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*
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* This function has the same effect with `nghttp2_submit_headers()`,
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* with flags = :enum:`NGHTTP2_FLAG_END_HEADERS` and both pri_spec and
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* stream_user_data to NULL.
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*
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* To submit trailer after `nghttp2_submit_response()` is called, the
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* application has to specify :type:`nghttp2_data_provider` to
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* `nghttp2_submit_response()`. In side
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* :type:`nghttp2_data_source_read_callback`, when setting
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* To submit trailer fields after `nghttp2_submit_response()` is
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* called, the application has to specify
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* :type:`nghttp2_data_provider` to `nghttp2_submit_response()`. In
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* side :type:`nghttp2_data_source_read_callback`, when setting
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* :enum:`NGHTTP2_DATA_FLAG_EOF`, also set
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* :enum:`NGHTTP2_DATA_FLAG_NO_END_STREAM`. After that, the
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* application can send trailer using `nghttp2_submit_trailer()`.
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* `nghttp2_submit_trailer()` can be used inside
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* :type:`nghttp2_data_source_read_callback`.
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* application can send trailer fields using
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* `nghttp2_submit_trailer()`. `nghttp2_submit_trailer()` can be used
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* inside :type:`nghttp2_data_source_read_callback`.
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*
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* This function returns 0 if it succeeds and |stream_id| is -1.
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* Otherwise, this function returns 0 if it succeeds, or one of the
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