Mercurial > hgrepos > Python2 > PyMuPDF
annotate mupdf-source/thirdparty/curl/docs/libcurl/curl_multi_assign.3 @ 40:aa33339d6b8a upstream
ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
| author | Franz Glasner <fzglas.hg@dom66.de> |
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| date | Sat, 11 Oct 2025 11:31:38 +0200 |
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1 .\" ************************************************************************** |
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2 .\" * _ _ ____ _ |
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3 .\" * Project ___| | | | _ \| | |
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4 .\" * / __| | | | |_) | | |
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5 .\" * | (__| |_| | _ <| |___ |
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6 .\" * \___|\___/|_| \_\_____| |
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7 .\" * |
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8 .\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al. |
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9 .\" * |
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10 .\" * This software is licensed as described in the file COPYING, which |
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11 .\" * you should have received as part of this distribution. The terms |
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12 .\" * are also available at https://curl.haxx.se/docs/copyright.html. |
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13 .\" * |
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14 .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
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15 .\" * copies of the Software, and permit persons to whom the Software is |
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16 .\" * furnished to do so, under the terms of the COPYING file. |
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17 .\" * |
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18 .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
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19 .\" * KIND, either express or implied. |
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20 .\" * |
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21 .\" ************************************************************************** |
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22 .TH curl_multi_assign 3 "9 Jul 2006" "libcurl 7.16.0" "libcurl Manual" |
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23 .SH NAME |
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24 curl_multi_assign \- set data to associate with an internal socket |
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25 .SH SYNOPSIS |
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26 #include <curl/curl.h> |
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27 |
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28 CURLMcode curl_multi_assign(CURLM *multi_handle, curl_socket_t sockfd, |
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29 void *sockptr); |
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30 .SH DESCRIPTION |
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31 This function creates an association in the multi handle between the given |
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32 socket and a private pointer of the application. This is designed for |
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33 \fIcurl_multi_socket_action(3)\fP uses. |
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34 |
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35 When set, the \fIsockptr\fP pointer will be passed to all future socket |
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36 callbacks for the specific \fIsockfd\fP socket. |
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37 |
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38 If the given \fIsockfd\fP isn't already in use by libcurl, this function will |
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39 return an error. |
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40 |
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41 libcurl only keeps one single pointer associated with a socket, so calling |
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42 this function several times for the same socket will make the last set pointer |
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43 get used. |
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44 |
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45 The idea here being that this association (socket to private pointer) is |
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46 something that just about every application that uses this API will need and |
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47 then libcurl can just as well do it since it already has an internal hash |
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48 table lookup for this. |
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49 .SH "RETURN VALUE" |
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50 The standard CURLMcode for multi interface error codes. |
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51 .SH "TYPICAL USAGE" |
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52 In a typical application you allocate a struct or at least use some kind of |
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53 semi-dynamic data for each socket that we must wait for action on when using |
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54 the \fIcurl_multi_socket_action(3)\fP approach. |
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55 |
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56 When our socket-callback gets called by libcurl and we get to know about yet |
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57 another socket to wait for, we can use \fIcurl_multi_assign(3)\fP to point out |
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58 the particular data so that when we get updates about this same socket again, |
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59 we don't have to find the struct associated with this socket by ourselves. |
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60 .SH AVAILABILITY |
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61 This function was added in libcurl 7.15.5. |
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62 .SH "SEE ALSO" |
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63 .BR curl_multi_setopt "(3), " curl_multi_socket_action "(3) " |
