81 lines
3.0 KiB
C
81 lines
3.0 KiB
C
/*
|
|
* nghttp2 - HTTP/2.0 C Library
|
|
*
|
|
* Copyright (c) 2012 Tatsuhiro Tsujikawa
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#ifndef NGHTTP2_OUTBOUND_ITEM_H
|
|
#define NGHTTP2_OUTBOUND_ITEM_H
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif /* HAVE_CONFIG_H */
|
|
|
|
#include <nghttp2/nghttp2.h>
|
|
#include "nghttp2_frame.h"
|
|
|
|
/* Priority for PING */
|
|
#define NGHTTP2_OB_PRI_PING -10
|
|
/* Priority for CREDENTIAL */
|
|
#define NGHTTP2_OB_PRI_CREDENTIAL -2
|
|
/* Priority for the frame which must be sent after CREDENTIAL */
|
|
#define NGHTTP2_OB_PRI_AFTER_CREDENTIAL -1
|
|
|
|
typedef struct {
|
|
nghttp2_data_provider *data_prd;
|
|
void *stream_user_data;
|
|
} nghttp2_headers_aux_data;
|
|
|
|
typedef struct {
|
|
/* Type of |frame|. NGHTTP2_CTRL: nghttp2_frame*, NGHTTP2_DATA:
|
|
nghttp2_data* */
|
|
nghttp2_frame_category frame_cat;
|
|
void *frame;
|
|
void *aux_data;
|
|
/* Initial priority of this item */
|
|
int inipri;
|
|
/* The current priority of this item. Initially, pri equals to
|
|
inipri. The item is chosen from the queue based on pri and
|
|
seq. For control frames, they consist of just 1 frame and pri
|
|
does not change. For DATA frame, they could split up to several
|
|
frames. After sending a frame, the pri is increased by 1. If it
|
|
becomes more than lowest priority, then it returns back to inipri
|
|
and do the same sequence again and again. By doing this, the
|
|
higher priority long DATA frames don't starve the lower
|
|
prioritized streams. */
|
|
int pri;
|
|
int64_t seq;
|
|
} nghttp2_outbound_item;
|
|
|
|
/*
|
|
* Deallocates resource for |item|. If |item| is NULL, this function
|
|
* does nothing.
|
|
*/
|
|
void nghttp2_outbound_item_free(nghttp2_outbound_item *item);
|
|
|
|
/* Macros to cast nghttp2_outbound_item.frame to the proper type. */
|
|
#define nghttp2_outbound_item_get_ctrl_frame(ITEM) ((nghttp2_frame*)ITEM->frame)
|
|
#define nghttp2_outbound_item_get_ctrl_frame_type(ITEM) \
|
|
(((nghttp2_frame*)ITEM->frame)->hd.type)
|
|
#define nghttp2_outbound_item_get_data_frame(ITEM) ((nghttp2_data*)ITEM->frame)
|
|
|
|
#endif /* NGHTTP2_OUTBOUND_ITEM_H */
|