Mercurial > hgrepos > Python2 > PyMuPDF
comparison mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_IOCTLDATA.3 @ 2:b50eed0cc0ef upstream
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> |
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| date | Mon, 15 Sep 2025 11:43:07 +0200 |
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| 1:1d09e1dec1d9 | 2:b50eed0cc0ef |
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| 1 .\" ************************************************************************** | |
| 2 .\" * _ _ ____ _ | |
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| 8 .\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al. | |
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| 23 .TH CURLOPT_IOCTLDATA 3 "16 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options" | |
| 24 .SH NAME | |
| 25 CURLOPT_IOCTLDATA \- custom pointer passed to I/O callback | |
| 26 .SH SYNOPSIS | |
| 27 #include <curl/curl.h> | |
| 28 | |
| 29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_IOCTLDATA, void *pointer); | |
| 30 .SH DESCRIPTION | |
| 31 Pass the \fIpointer\fP that will be untouched by libcurl and passed as the 3rd | |
| 32 argument in the ioctl callback set with \fICURLOPT_IOCTLFUNCTION(3)\fP. | |
| 33 .SH DEFAULT | |
| 34 By default, the value of this parameter is NULL. | |
| 35 .SH PROTOCOLS | |
| 36 Used with HTTP | |
| 37 .SH EXAMPLE | |
| 38 .nf | |
| 39 static curlioerr ioctl_callback(CURL *handle, int cmd, void *clientp) | |
| 40 { | |
| 41 struct data *io = (struct data *)clientp; | |
| 42 if(cmd == CURLIOCMD_RESTARTREAD) { | |
| 43 lseek(fd, 0, SEEK_SET); | |
| 44 current_offset = 0; | |
| 45 return CURLIOE_OK; | |
| 46 } | |
| 47 return CURLIOE_UNKNOWNCMD; | |
| 48 } | |
| 49 { | |
| 50 struct data ioctl_data; | |
| 51 curl_easy_setopt(curl, CURLOPT_IOCTLFUNCTION, ioctl_callback); | |
| 52 curl_easy_setopt(curl, CURLOPT_IOCTLDATA, &ioctl_data); | |
| 53 } | |
| 54 .fi | |
| 55 .SH AVAILABILITY | |
| 56 Added in 7.12.3 | |
| 57 .SH RETURN VALUE | |
| 58 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. | |
| 59 .SH "SEE ALSO" | |
| 60 .BR CURLOPT_IOCTLFUNCTION "(3), " CURLOPT_SEEKFUNCTION "(3), " |