mirror of https://github.com/curl/curl.git synced 2025-01-06 13:44:52 +08:00

Daniel Stenberg 96af350661

CURLMOPT_SOCKETDATA.md: fix typo
 CURLMOPT_TIMERDATA.md: fix typo
 CURLOPT_COOKIELIST.m: quote strings
 CURLOPT_PREREQFUNCTION.md: quote variable names
 CURLOPT_TCP_NODELAY.md: rephrased to please spell checker
 CURLOPT_WILDCARDMATCH.md: rephrased
 libcurl-tutorial.md: use correct option name
 curl_global_init_mem.md: quote headers
 curl_easy_getinfo.md: use correct symbol names in headers
 curl_global_trace.md: quote some headers
 curl_ws_meta.md: quote struct field names
 libcurl-env.md: quote headers

2024-02-19 11:41:12 +01:00

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SPDX-License-Identifier

Title

Section

Source

See-also

curl

CURLMOPT_TIMERDATA

libcurl

CURLMOPT_SOCKETFUNCTION (3)

CURLMOPT_TIMERFUNCTION (3)

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.

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