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CURLMOPT_PUSHDATA

Section: curl_multi_setopt options (3)
Updated: May 27, 2017
Index Return to Main Contents

 

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), RFC7540


 

Index

NAME
SYNOPSIS
DESCRIPTION
DEFAULT
PROTOCOLS
EXAMPLE
AVAILABILITY
RETURN VALUE
SEE ALSO





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