99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
/*
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* nghttp2 - HTTP/2 C Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef NGHTTP2_OUTBOUND_ITEM_H
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#define NGHTTP2_OUTBOUND_ITEM_H
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <nghttp2/nghttp2.h>
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#include "nghttp2_frame.h"
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/* A bit higher weight for non-DATA frames */
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#define NGHTTP2_OB_EX_WEIGHT 300
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/* Higher weight for SETTINGS */
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#define NGHTTP2_OB_SETTINGS_WEIGHT 301
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/* Highest weight for PING */
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#define NGHTTP2_OB_PING_WEIGHT 302
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/* struct used for HEADERS and PUSH_PROMISE frame */
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typedef struct {
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nghttp2_data_provider data_prd;
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void *stream_user_data;
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/* nonzero if this item should be attached to stream object to make
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it under priority control */
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uint8_t attach_stream;
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} nghttp2_headers_aux_data;
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/* struct used for DATA frame */
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typedef struct {
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/**
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* The data to be sent for this DATA frame.
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*/
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nghttp2_data_provider data_prd;
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/**
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* The flags of DATA frame. We use separate flags here and
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* nghttp2_data frame. The latter contains flags actually sent to
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* peer. This |flags| may contain NGHTTP2_FLAG_END_STREAM and only
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* when |eof| becomes nonzero, flags in nghttp2_data has
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* NGHTTP2_FLAG_END_STREAM set.
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*/
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uint8_t flags;
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/**
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* The flag to indicate whether EOF was reached or not. Initially
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* |eof| is 0. It becomes 1 after all data were read.
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*/
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uint8_t eof;
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} nghttp2_data_aux_data;
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/* Additional data which cannot be stored in nghttp2_frame struct */
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typedef union {
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nghttp2_data_aux_data data;
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nghttp2_headers_aux_data headers;
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} nghttp2_aux_data;
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typedef struct {
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nghttp2_frame frame;
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nghttp2_aux_data aux_data;
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int64_t seq;
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/* Reset count of weight. See comment for last_cycle in
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nghttp2_session.h */
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uint64_t cycle;
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/* The priority used in priority comparion. Larger is served
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ealier. */
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int32_t weight;
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/* nonzero if this object is queued. */
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uint8_t queued;
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} nghttp2_outbound_item;
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/*
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* Deallocates resource for |item|. If |item| is NULL, this function
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* does nothing.
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*/
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void nghttp2_outbound_item_free(nghttp2_outbound_item *item);
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#endif /* NGHTTP2_OUTBOUND_ITEM_H */
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