************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel (at] 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.haxx.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. * ************************************************************************** CURLMOPT_PUSHDATA 3 "May 27, 2017" "libcurl 7.64.1" "curl_multi_setopt options"
NAME
CURLMOPT_PUSHDATA - pointer to pass to push callback
SYNOPSIS
#include <curl/curl.h>
CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_PUSHDATA, void *pointer);
DESCRIPTION
Set
pointer to pass as the last argument to the
CURLMOPT_PUSHFUNCTION(3) callback. The pointer will not be touched or
used by libcurl itself, only passed on to the callback function.
DEFAULT
NULL
PROTOCOLS
HTTP(S)
EXAMPLE
/* only allow pushes for file names starting with "push-" */
int push_callback(CURL *parent,
CURL *easy,
size_t num_headers,
struct curl_pushheaders *headers,
void *userp)
{
char *headp;
int *transfers = (int *)userp;
FILE *out;
headp = curl_pushheader_byname(headers, ":path");
if(headp && !strncmp(headp, "/push-", 6)) {
fprintf(stderr, "The PATH is %s\\n", headp);
/* save the push here */
out = fopen("pushed-stream", "wb");
/* write to this file */
curl_easy_setopt(easy, CURLOPT_WRITEDATA, out);
(*transfers)++; /* one more */
return CURL_PUSH_OK;
}
return CURL_PUSH_DENY;
}
curl_multi_setopt(multi, CURLMOPT_PUSHFUNCTION, push_callback);
curl_multi_setopt(multi, CURLMOPT_PUSHDATA, &counter);
AVAILABILITY
Added in 7.44.0
RETURN VALUE
Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.
"SEE ALSO"
CURLMOPT_PUSHFUNCTION "(3), " CURLMOPT_PIPELINING "(3), " CURLOPT_PIPEWAIT "(3), " RFC 7540