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3755153571
- replace `Curl_read()`, `Curl_write()` and `Curl_nwrite()` to clarify when and at what level they operate - send/recv of transfer related data is now done via `Curl_xfer_send()/Curl_xfer_recv()` which no longer has socket/socketindex as parameter. It decides on the transfer setup of `conn->sockfd` and `conn->writesockfd` on which connection filter chain to operate. - send/recv on a specific connection filter chain is done via `Curl_conn_send()/Curl_conn_recv()` which get the socket index as parameter. - rename `Curl_setup_transfer()` to `Curl_xfer_setup()` for naming consistency - clarify that the special CURLE_AGAIN hangling to return `CURLE_OK` with length 0 only applies to `Curl_xfer_send()` and CURLE_AGAIN is returned by all other send() variants. - fix a bug in websocket `curl_ws_recv()` that mixed up data when it arrived in more than a single chunk The method for sending not just raw bytes, but bytes that are either "headers" or "body". The send abstraction stack, to to bottom, now is: * `Curl_req_send()`: has parameter to indicate amount of header bytes, buffers all data. * `Curl_xfer_send()`: knows on which socket index to send, returns amount of bytes sent. * `Curl_conn_send()`: called with socket index, returns amount of bytes sent. In addition there is `Curl_req_flush()` for writing out all buffered bytes. `Curl_req_send()` is active for requests without body, `Curl_buffer_send()` still being used for others. This is because the special quirks need to be addressed in future parts: * `expect-100` handling * `Curl_fillreadbuffer()` needs to add directly to the new `data->req.sendbuf` * special body handlings, like `chunked` encodings and line end conversions will be moved into something like a Client Reader. In functions of the pattern `CURLcode xxx_send(..., ssize_t *written)`, replace the `ssize_t` with a `size_t`. It makes no sense to allow for negative values as the returned `CURLcode` already specifies error conditions. This allows easier handling of lengths without casting. Closes #12964
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
#ifndef HEADER_CURL_EASYIF_H
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#define HEADER_CURL_EASYIF_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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/*
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* Prototypes for library-wide functions provided by easy.c
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*/
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CURLcode Curl_senddata(struct Curl_easy *data, const void *buffer,
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size_t buflen, size_t *n);
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#ifdef USE_WEBSOCKETS
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CURLcode Curl_connect_only_attach(struct Curl_easy *data);
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#endif
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#ifdef CURLDEBUG
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CURL_EXTERN CURLcode curl_easy_perform_ev(struct Curl_easy *easy);
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#endif
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#endif /* HEADER_CURL_EASYIF_H */
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