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58 lines
2.5 KiB
Groff
58 lines
2.5 KiB
Groff
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.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at http://curl.haxx.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" **************************************************************************
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.TH curl_easy_perform 3 "5 Mar 2001" "libcurl 7.7" "libcurl Manual"
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.SH NAME
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curl_easy_perform - Perform a file transfer
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.SH SYNOPSIS
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.B #include <curl/curl.h>
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.sp
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.BI "CURLcode curl_easy_perform(CURL *" handle ");"
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.ad
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.SH DESCRIPTION
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This function is called after the init and all the \fIcurl_easy_setopt(3)\fP
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calls are made, and will perform the transfer as described in the options. It
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must be called with the same
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.I handle
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as input as the curl_easy_init call returned.
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You can do any amount of calls to \fIcurl_easy_perform(3)\fP while using the
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same handle. If you intend to transfer more than one file, you are even
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encouraged to do so. libcurl will then attempt to re-use the same connection
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for the following transfers, thus making the operations faster, less CPU
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intense and using less network resources. Just note that you will have to use
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\fIcurl_easy_setopt(3)\fP between the invokes to set options for the following
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curl_easy_perform.
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You must never call this function simultaneously from two places using the
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same handle. Let the function return first before invoking it another time. If
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you want parallel transfers, you must use several curl handles.
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.SH RETURN VALUE
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0 means everything was ok, non-zero means an error occurred as
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.I <curl/curl.h>
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defines. If the CURLOPT_ERRORBUFFER was set with
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.I curl_easy_setopt
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there will be a readable error message in the error buffer when non-zero is
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returned.
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.SH "SEE ALSO"
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.BR curl_easy_init "(3), " curl_easy_setopt "(3), "
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