NAME¶

CURLMOPT_TIMERDATA - custom pointer to pass to timer callback

SYNOPSIS¶

#include <curl/curl.h>
CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_TIMERDATA, void *pointer);

DESCRIPTION¶

A data pointer to pass to the timer callback set with the CURLMOPT_TIMERFUNCTION(3) option.

This pointer is not touched by libcurl but is only be passed in to the timer callback's clientp argument.

DEFAULT¶

NULL

PROTOCOLS¶

All

EXAMPLE¶

struct priv {


  void *custom;
};
static int timerfunc(CURLM *multi, long timeout_ms, void *clientp)
{


 struct priv *mydata = clientp;


 printf("our ptr: %p\n", mydata->custom);


 if(timeout_ms) {


   /* this is the new single timeout to wait for */


 }


 else {


   /* delete the timeout, nothing to wait for now */


 }
}
int main(void)
{


  struct priv mydata;


  CURLM *multi = curl_multi_init();


  curl_multi_setopt(multi, CURLMOPT_TIMERFUNCTION, timerfunc);


  curl_multi_setopt(multi, CURLMOPT_TIMERDATA, &mydata);
}

AVAILABILITY¶

Added in 7.16.0

RETURN VALUE¶

Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.

SEE ALSO¶

CURLMOPT_SOCKETFUNCTION(3), CURLMOPT_TIMERFUNCTION(3)