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5651a36d1a
- Curl_write_plain/Curl_read_plain have been eliminated. Last code use now uses Curl_conn_send/recv so that requests use conn->send/revc callbacks which defaults to cfilters use. - Curl_recv_plain/Curl_send_plain have been internalized in cf-socket.c. - USE_RECV_BEFORE_SEND_WORKAROUND (active on Windows) has been moved into cf-socket.c. The pre_recv buffer is held at the socket filter context. `postponed_data` structures have been removed from `connectdata`. - the hanger in HTTP/2 request handling was a result of read buffering on all sends and the multi handling is not prepared for this. The following happens: - multi preforms on a HTTP/2 easy handle - h2 reads and processes data - this leads to a send of h2 data - which receives and buffers before the send - h2 returns - multi selects on the socket, but no data arrives (its in the buffer already) the workaround now receives data in a loop as long as there is something in the buffer. The real fix would be for multi to change, so that `data_pending` is evaluated before deciding to wait on the socket. io_buffer, optional, in cf-socket.c, http/2 sets state.drain if lower filter have pending data. This io_buffer is only available/used when the -DUSE_RECV_BEFORE_SEND_WORKAROUND is active, e.g. on Windows configurations. It also maintains the original checks on protocol handler being HTTP and conn->send/recv not being replaced. The HTTP/2 (nghttp2) cfilter now sets data->state.drain when it finds out that the "lower" filter chain has still pending data at the end of its IO operation. This prevents the processing from becoming stalled. Closes #10280
55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
#ifndef HEADER_CURL_SENDF_H
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#define HEADER_CURL_SENDF_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "curl_setup.h"
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#include "curl_log.h"
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#define CLIENTWRITE_BODY (1<<0)
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#define CLIENTWRITE_HEADER (1<<1)
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#define CLIENTWRITE_STATUS (1<<2) /* the first "header" is the status line */
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#define CLIENTWRITE_CONNECT (1<<3) /* a CONNECT response */
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#define CLIENTWRITE_1XX (1<<4) /* a 1xx response */
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#define CLIENTWRITE_TRAILER (1<<5) /* a trailer header */
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#define CLIENTWRITE_BOTH (CLIENTWRITE_BODY|CLIENTWRITE_HEADER)
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CURLcode Curl_client_write(struct Curl_easy *data, int type, char *ptr,
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size_t len) WARN_UNUSED_RESULT;
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/* internal read-function, does plain socket, SSL and krb4 */
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CURLcode Curl_read(struct Curl_easy *data, curl_socket_t sockfd,
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char *buf, size_t buffersize,
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ssize_t *n);
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/* internal write-function, does plain socket, SSL, SCP, SFTP and krb4 */
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CURLcode Curl_write(struct Curl_easy *data,
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curl_socket_t sockfd,
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const void *mem, size_t len,
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ssize_t *written);
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#endif /* HEADER_CURL_SENDF_H */
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