76 lines
1.3 KiB
Markdown
76 lines
1.3 KiB
Markdown
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---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLMOPT_TIMERDATA
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Section: 3
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Source: libcurl
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See-also:
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- CURLMOPT_SOCKETFUNCTION (3)
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- CURLMOPT_TIMERFUNCTION (3)
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---
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# NAME
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CURLMOPT_TIMERDATA - custom pointer to pass to timer callback
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_TIMERDATA, void *pointer);
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~~~
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# DESCRIPTION
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A data **pointer** to pass to the timer callback set with the
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CURLMOPT_TIMERFUNCTION(3) option.
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This pointer is not touched by libcurl but is only be passed in to the timer
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callback's **clientp** argument.
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# DEFAULT
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NULL
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# PROTOCOLS
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All
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# EXAMPLE
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~~~c
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struct priv {
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void *custom;
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};
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static int timerfunc(CURLM *multi, long timeout_ms, void *clientp)
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{
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struct priv *mydata = clientp;
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printf("our ptr: %p\n", mydata->custom);
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if(timeout_ms) {
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/* this is the new single timeout to wait for */
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}
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else {
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/* delete the timeout, nothing to wait for now */
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}
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}
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int main(void)
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{
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struct priv mydata;
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CURLM *multi = curl_multi_init();
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curl_multi_setopt(multi, CURLMOPT_TIMERFUNCTION, timerfunc);
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curl_multi_setopt(multi, CURLMOPT_TIMERDATA, &mydata);
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}
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~~~
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# AVAILABILITY
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Added in 7.16.0
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# RETURN VALUE
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Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.
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