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70 lines
2.6 KiB
70 lines
2.6 KiB
2 years ago
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#ifndef HEADER_CURL_WS_H
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#define HEADER_CURL_WS_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) 1998 - 2022, 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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#ifdef USE_WEBSOCKETS
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#ifdef USE_HYPER
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#define REQTYPE void
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#else
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#define REQTYPE struct dynbuf
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#endif
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/* this is the largest single fragment size we support */
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#define MAX_WS_SIZE 65535
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/* part of 'struct HTTP', when used in the 'struct SingleRequest' in the
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Curl_easy struct */
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struct websocket {
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bool contfragment; /* set TRUE if the previous fragment sent was not final */
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unsigned char mask[4]; /* 32 bit mask for this connection */
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struct Curl_easy *data; /* used for write callback handling */
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struct dynbuf buf;
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size_t usedbuf; /* number of leading bytes in 'buf' the most recent complete
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websocket frame uses */
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struct curl_ws_frame frame; /* the struct used for frame state */
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curl_off_t oleft; /* outstanding number of payload bytes left from the
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server */
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curl_off_t stillbuffer; /* number of bytes left in the buffer to deliver in
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the next curl_ws_recv() call */
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char *stillb; /* the stillbuffer pending bytes are here */
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curl_off_t sleft; /* outstanding number of payload bytes left to send */
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unsigned int xori; /* xor index */
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};
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CURLcode Curl_ws_request(struct Curl_easy *data, REQTYPE *req);
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CURLcode Curl_ws_accept(struct Curl_easy *data);
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size_t Curl_ws_writecb(char *buffer, size_t size, size_t nitems, void *userp);
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void Curl_ws_done(struct Curl_easy *data);
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#else
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#define Curl_ws_request(x,y) CURLE_OK
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#define Curl_ws_done(x) Curl_nop_stmt
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#endif
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#endif /* HEADER_CURL_WS_H */
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