Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_NOSIGNAL.3 @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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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 .\"
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23 .TH CURLOPT_NOSIGNAL 3 "16 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
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24 .SH NAME
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25 CURLOPT_NOSIGNAL \- skip all signal handling
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26 .SH SYNOPSIS
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27 #include <curl/curl.h>
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28
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29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_NOSIGNAL, long onoff);
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30 .SH DESCRIPTION
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31 If \fIonoff\fP is 1, libcurl will not use any functions that install signal
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32 handlers or any functions that cause signals to be sent to the process. This
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33 option is here to allow multi-threaded unix applications to still set/use all
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34 timeout options etc, without risking getting signals.
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35
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36 If this option is set and libcurl has been built with the standard name
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37 resolver, timeouts will not occur while the name resolve takes place.
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38 Consider building libcurl with the c-ares or threaded resolver backends to
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39 enable asynchronous DNS lookups, to enable timeouts for name resolves without
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40 the use of signals.
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41
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42 Setting \fICURLOPT_NOSIGNAL(3)\fP to 1 makes libcurl NOT ask the system to
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43 ignore SIGPIPE signals, which otherwise are sent by the system when trying to
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44 send data to a socket which is closed in the other end. libcurl makes an
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45 effort to never cause such SIGPIPEs to trigger, but some operating systems
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46 have no way to avoid them and even on those that have there are some corner
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47 cases when they may still happen, contrary to our desire. In addition, using
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48 \fICURLAUTH_NTLM_WB\fP authentication could cause a SIGCHLD signal to be
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49 raised.
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50 .SH DEFAULT
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51 0
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52 .SH AVAILABILITY
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53 Added in 7.10
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54 .SH RETURN VALUE
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55 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.