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55 lines
1.3 KiB
Groff
55 lines
1.3 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLMOPT_TIMERDATA.md
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.TH CURLMOPT_TIMERDATA 3 "2024-07-29" libcurl
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.SH NAME
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CURLMOPT_TIMERDATA \- custom pointer to pass to timer callback
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.SH SYNOPSIS
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.nf
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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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.fi
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.SH DESCRIPTION
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A data \fBpointer\fP to pass to the timer callback set with the
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\fICURLMOPT_TIMERFUNCTION(3)\fP 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\(aqs \fBclientp\fP argument.
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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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This functionality affects all supported protocols
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.SH EXAMPLE
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.nf
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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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.fi
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.SH AVAILABILITY
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Added in curl 7.16.0
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.SH RETURN VALUE
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Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.
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.SH SEE ALSO
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.BR CURLMOPT_SOCKETFUNCTION (3),
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.BR CURLMOPT_TIMERFUNCTION (3)
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