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3rdparty/curl/share/man/man3/curl_easy_cleanup.3 3 KB
a86c63ca   Hu Chunming   提交三方库文件
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  .\" **************************************************************************
  .\" *                                  _   _ ____  _
  .\" *  Project                     ___| | | |  _ \| |
  .\" *                             / __| | | | |_) | |
  .\" *                            | (__| |_| |  _ <| |___
  .\" *                             \___|\___/|_| \_\_____|
  .\" *
  .\" * Copyright (C) 1998 - 2020, 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 curl_easy_cleanup 3 "November 04, 2020" "libcurl 7.77.0" "libcurl Manual"
  
  .SH NAME
  curl_easy_cleanup - End a libcurl easy handle
  .SH SYNOPSIS
  .B #include <curl/curl.h>
  
  .BI "void curl_easy_cleanup(CURL *" handle ");"
  .SH DESCRIPTION
  This function must be the last function to call for an easy session. It is the
  opposite of the \fIcurl_easy_init(3)\fP function and must be called with the
  same \fIhandle\fP as input that a \fIcurl_easy_init(3)\fP call returned.
  
  This might close all connections this handle has used and possibly has kept
  open until now - unless it was attached to a multi handle while doing the
  transfers. Don't call this function if you intend to transfer more files,
  re-using handles is a key to good performance with libcurl.
  
  Occasionally you may get your progress callback or header callback called from
  within \fIcurl_easy_cleanup(3)\fP (if previously set for the handle using
  \fIcurl_easy_setopt(3)\fP). Like if libcurl decides to shut down the
  connection and the protocol is of a kind that requires a command/response
  sequence before disconnect. Examples of such protocols are FTP, POP3 and IMAP.
  
  Any use of the \fBhandle\fP after this function has been called and have
  returned, is illegal. \fIcurl_easy_cleanup(3)\fP kills the handle and all
  memory associated with it!
  
  Passing in a NULL pointer in \fIhandle\fP will make this function return
  immediately with no action.
  .SH "OLD TIMES"
  For libcurl versions before 7.17,: after you've called this function, you can
  safely remove all the strings you've previously told libcurl to use, as it
  won't use them anymore now.
  .SH RETURN VALUE
  None
  .SH EXAMPLE
  .nf
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode res;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
    res = curl_easy_perform(curl);
    curl_easy_cleanup(curl);
  }
  .fi
  .SH "SEE ALSO"
  .BR curl_easy_init "(3), " curl_easy_duphandle "(3), "
  .BR curl_easy_reset "(3), "
  .BR curl_multi_cleanup "(3), " curl_multi_remove_handle "(3) "