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3rdparty/curl/share/man/man3/CURLOPT_SHARE.3 3.12 KB
a86c63ca   Hu Chunming   提交三方库文件
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  .\" **************************************************************************
  .\" *                                  _   _ ____  _
  .\" *  Project                     ___| | | |  _ \| |
  .\" *                             / __| | | | |_) | |
  .\" *                            | (__| |_| |  _ <| |___
  .\" *                             \___|\___/|_| \_\_____|
  .\" *
  .\" * Copyright (C) 1998 - 2017, 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.
  .\" *
  .\" **************************************************************************
  .\"
  .TH CURLOPT_SHARE 3 "November 04, 2020" "libcurl 7.77.0" "curl_easy_setopt options"
  
  .SH NAME
  CURLOPT_SHARE \- specify share handle to use
  .SH SYNOPSIS
  #include <curl/curl.h>
  
  CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SHARE, CURLSH *share);
  .SH DESCRIPTION
  Pass a \fIshare\fP handle as a parameter. The share handle must have been
  created by a previous call to \fIcurl_share_init(3)\fP. Setting this option,
  will make this curl handle use the data from the shared handle instead of
  keeping the data to itself. This enables several curl handles to share
  data. If the curl handles are used simultaneously in multiple threads, you
  \fBMUST\fP use the locking methods in the share handle. See
  \fIcurl_share_setopt(3)\fP for details.
  
  If you add a share that is set to share cookies, your easy handle will use
  that cookie cache and get the cookie engine enabled. If you unshare an object
  that was using cookies (or change to another object that doesn't share
  cookies), the easy handle will get its cookie engine disabled.
  
  Data that the share object is not set to share will be dealt with the usual
  way, as if no share was used.
  
  Set this option to NULL again to stop using that share object.
  .SH DEFAULT
  NULL
  .SH PROTOCOLS
  All
  .SH EXAMPLE
  .nf
  CURL *curl = curl_easy_init();
  CURL *curl2 = curl_easy_init(); /* a second handle */
  if(curl) {
    CURLSH *shobject = curl_share_init();
    curl_share_setopt(shobject, CURLSHOPT_SHARE, CURL_LOCK_DATA_COOKIE);
  
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
    curl_easy_setopt(curl, CURLOPT_COOKIEFILE, "");
    curl_easy_setopt(curl, CURLOPT_SHARE, shobject);
    ret = curl_easy_perform(curl);
    curl_easy_cleanup(curl);
  
    /* the second handle shares cookies from the first */
    curl_easy_setopt(curl2, CURLOPT_URL, "https://example.com/second");
    curl_easy_setopt(curl2, CURLOPT_COOKIEFILE, "");
    curl_easy_setopt(curl2, CURLOPT_SHARE, shobject);
    ret = curl_easy_perform(curl2);
    curl_easy_cleanup(curl2);
  
    curl_share_cleanup(shobject);
  }
  .fi
  .SH AVAILABILITY
  Always
  .SH RETURN VALUE
  Returns CURLE_OK
  .SH "SEE ALSO"
  .BR CURLOPT_COOKIE "(3), "