CURLMOPT_TIMERDATA - custom pointer to pass to timer callback

NAME SYNOPSIS DESCRIPTION DEFAULT PROTOCOLS EXAMPLE AVAILABILITY RETURN VALUE SEE ALSO

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 callbacks’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.