mirror of
https://github.com/curl/curl.git
synced 2024-12-15 06:40:09 +08:00
734c1f8909
- curl_ws_send returns CURLE_SEND_ERROR if data->conn is gone - curl_ws_recv returns CURLE_GOT_NOTHING on connection close - curl_ws_recv.3: mention new return code for connection close + example embryo Closes #10084
66 lines
2.5 KiB
Groff
66 lines
2.5 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 1998 - 2022, 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.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.
|
|
.\" *
|
|
.\" * SPDX-License-Identifier: curl
|
|
.\" *
|
|
.\" **************************************************************************
|
|
.\"
|
|
.TH curl_ws_recv 3 "12 Jun 2022" "libcurl 7.85.0" "libcurl Manual"
|
|
.SH NAME
|
|
curl_ws_recv - receive WebSocket data
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <curl/easy.h>
|
|
|
|
CURLcode curl_ws_recv(CURL *curl, void *buffer, size_t buflen,
|
|
size_t *recv, struct curl_ws_frame **meta);
|
|
.fi
|
|
.SH DESCRIPTION
|
|
This function call is EXPERIMENTAL.
|
|
|
|
Retrieves as much as possible of a received WebSocket data fragment into the
|
|
\fBbuffer\fP, but not more than \fBbuflen\fP bytes. \fIrecv\fP is set to the
|
|
number of bytes actually stored.
|
|
|
|
If there is more fragment data to deliver than what fits in the provided
|
|
\fIbuffer\fP, libcurl returns a full buffer and the application needs to call
|
|
this function again to continue draining the buffer.
|
|
|
|
The \fImeta\fP pointer gets set to point to a \fIstruct curl_ws_frame\fP that
|
|
contains information about the received data. See the \fIcurl_ws_meta(3)\fP
|
|
for details on that struct.
|
|
.SH EXAMPLE
|
|
.nf
|
|
size_t rlen;
|
|
struct curl_ws_frame *meta;
|
|
char buffer[256];
|
|
CURLcode result = curl_ws_recv(curl, buffer, sizeof(buffer), &rlen, &meta);
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 7.86.0.
|
|
.SH RETURN VALUE
|
|
Returns \fBCURLE_OK\fP if everything is okay, and a non-zero number for
|
|
errors. Returns \fBCURLE_GOT_NOTHING\fP if the associated connection is
|
|
closed.
|
|
.SH "SEE ALSO"
|
|
.BR curl_easy_setopt "(3), " curl_easy_perform "(3), "
|
|
.BR curl_easy_getinfo "(3), "
|
|
.BR curl_ws_send "(3) "
|