83 lines
2.9 KiB
Groff
83 lines
2.9 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) 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 https://curl.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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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.TH curl_easy_init 3 "4 March 2002" "libcurl" "libcurl"
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.SH NAME
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curl_easy_init - Start a libcurl easy session
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURL *curl_easy_init();
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.fi
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.SH DESCRIPTION
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This function allocates and returns a CURL easy handle. Such a handle is used
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as input to other functions in the easy interface. This call must have a
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corresponding call to \fIcurl_easy_cleanup(3)\fP when the operation is
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complete.
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The easy handle is used to hold and control a single network transfer. It is
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encouraged to reuse easy handles for repeated transfers.
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An alternative way to get a new easy handle is to duplicate an already
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existing one with \fIcurl_easy_duphandle(3)\fP, which has the upside that it
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gets all the options that were set in the source handle set in the new copy as
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well.
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If you did not already call \fIcurl_global_init(3)\fP before calling this
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function, \fIcurl_easy_init(3)\fP does it automatically. This may be lethal in
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multi-threaded cases, if \fIcurl_global_init(3)\fP is not thread-safe in your
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system, and it may then result in resource problems because there is no
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corresponding cleanup.
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You are strongly advised to not allow this automatic behavior, by calling
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\fIcurl_global_init(3)\fP yourself properly. See the description in
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\fBlibcurl\fP(3) of global environment requirements for details of how to use
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this function.
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.SH EXAMPLE
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.nf
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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}
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.fi
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.SH AVAILABILITY
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Always
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.SH RETURN VALUE
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If this function returns NULL, something went wrong and you cannot use the
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other curl functions.
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.SH "SEE ALSO"
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.BR curl_easy_cleanup (3),
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.BR curl_easy_duphandle (3),
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.BR curl_easy_perform (3),
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.BR curl_easy_reset (3),
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.BR curl_global_init (3),
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.BR curl_multi_init (3)
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