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curl/lib/http2.h
Daniel Stenberg 15f51474c8
http2: make pausing/unpausing set/clear local stream window
This reduces the HTTP/2 window size to 32 MB since libcurl might have to
buffer up to this amount of data in memory and yet we don't want it set
lower to potentially impact tranfer performance on high speed networks.

Requires nghttp2 commit b3f85e2daa629
(https://github.com/nghttp2/nghttp2/pull/1444) to work properly, to end
up in the next release after 1.40.0.

Fixes #4939
Closes #4940
2020-02-27 10:35:51 +01:00

83 lines
3.3 KiB
C

#ifndef HEADER_CURL_HTTP2_H
#define HEADER_CURL_HTTP2_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_NGHTTP2
#include "http.h"
/* value for MAX_CONCURRENT_STREAMS we use until we get an updated setting
from the peer */
#define DEFAULT_MAX_CONCURRENT_STREAMS 13
/*
* Store nghttp2 version info in this buffer, Prefix with a space. Return
* total length written.
*/
int Curl_http2_ver(char *p, size_t len);
const char *Curl_http2_strerror(uint32_t err);
CURLcode Curl_http2_init(struct connectdata *conn);
void Curl_http2_init_state(struct UrlState *state);
void Curl_http2_init_userset(struct UserDefined *set);
CURLcode Curl_http2_request_upgrade(Curl_send_buffer *req,
struct connectdata *conn);
CURLcode Curl_http2_setup(struct connectdata *conn);
CURLcode Curl_http2_switched(struct connectdata *conn,
const char *data, size_t nread);
/* called from http_setup_conn */
void Curl_http2_setup_conn(struct connectdata *conn);
void Curl_http2_setup_req(struct Curl_easy *data);
void Curl_http2_done(struct Curl_easy *data, bool premature);
CURLcode Curl_http2_done_sending(struct connectdata *conn);
CURLcode Curl_http2_add_child(struct Curl_easy *parent,
struct Curl_easy *child,
bool exclusive);
void Curl_http2_remove_child(struct Curl_easy *parent,
struct Curl_easy *child);
void Curl_http2_cleanup_dependencies(struct Curl_easy *data);
CURLcode Curl_http2_stream_pause(struct Curl_easy *data, bool pause);
/* returns true if the HTTP/2 stream error was HTTP_1_1_REQUIRED */
bool Curl_h2_http_1_1_error(struct connectdata *conn);
#else /* USE_NGHTTP2 */
#define Curl_http2_request_upgrade(x,y) CURLE_UNSUPPORTED_PROTOCOL
#define Curl_http2_setup(x) CURLE_UNSUPPORTED_PROTOCOL
#define Curl_http2_switched(x,y,z) CURLE_UNSUPPORTED_PROTOCOL
#define Curl_http2_setup_conn(x) Curl_nop_stmt
#define Curl_http2_setup_req(x)
#define Curl_http2_init_state(x)
#define Curl_http2_init_userset(x)
#define Curl_http2_done(x,y)
#define Curl_http2_done_sending(x)
#define Curl_http2_add_child(x, y, z)
#define Curl_http2_remove_child(x, y)
#define Curl_http2_cleanup_dependencies(x)
#define Curl_http2_stream_pause(x, y)
#define Curl_h2_http_1_1_error(x) 0
#endif
#endif /* HEADER_CURL_HTTP2_H */