81 lines
3.0 KiB
C
81 lines
3.0 KiB
C
/*
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* nghttp2 - HTTP/2.0 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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/* Priority for PING */
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#define NGHTTP2_OB_PRI_PING -10
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/* Priority for CREDENTIAL */
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#define NGHTTP2_OB_PRI_CREDENTIAL -2
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/* Priority for the frame which must be sent after CREDENTIAL */
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#define NGHTTP2_OB_PRI_AFTER_CREDENTIAL -1
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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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} nghttp2_syn_stream_aux_data;
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typedef struct {
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/* Type of |frame|. NGHTTP2_CTRL: nghttp2_frame*, NGHTTP2_DATA:
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nghttp2_data* */
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nghttp2_frame_category frame_cat;
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void *frame;
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void *aux_data;
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/* Initial priority of this item */
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int inipri;
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/* The current priority of this item. Initially, pri equals to
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inipri. The item is chosen from the queue based on pri and
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seq. For control frames, they consist of just 1 frame and pri
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does not change. For DATA frame, they could split up to several
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frames. After sending a frame, the pri is increased by 1. If it
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becomes more than lowest priority, then it returns back to inipri
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and do the same sequence again and again. By doing this, the
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higher priority long DATA frames don't starve the lower
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prioritized streams. */
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int pri;
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int64_t seq;
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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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/* Macros to cast nghttp2_outbound_item.frame to the proper type. */
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#define nghttp2_outbound_item_get_ctrl_frame(ITEM) ((nghttp2_frame*)ITEM->frame)
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#define nghttp2_outbound_item_get_ctrl_frame_type(ITEM) \
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(((nghttp2_frame*)ITEM->frame)->ctrl.hd.type)
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#define nghttp2_outbound_item_get_data_frame(ITEM) ((nghttp2_data*)ITEM->frame)
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#endif /* NGHTTP2_OUTBOUND_ITEM_H */
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