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.IX Title &quot;DTLS_SET_TIMER_CB 3&quot;
.TH DTLS_SET_TIMER_CB 3 &quot;2023-09-11&quot; &quot;1.1.1w&quot; &quot;OpenSSL&quot;
.\&quot; For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH &quot;NAME&quot;
DTLS_timer_cb, DTLS_set_timer_cb \&amp;\- Set callback for controlling DTLS timer duration
.SH &quot;SYNOPSIS&quot;
.IX Header &quot;SYNOPSIS&quot;
.Vb 1
\&amp; #include &lt;openssl/ssl.h&gt;
\&amp;
\&amp; typedef unsigned int (*DTLS_timer_cb)(SSL *s, unsigned int timer_us);
\&amp;
\&amp; void DTLS_set_timer_cb(SSL *s, DTLS_timer_cb cb);
.Ve
.SH &quot;DESCRIPTION&quot;
.IX Header &quot;DESCRIPTION&quot;
This function sets an optional callback function for controlling the
timeout interval on the \s-1DTLS\s0 protocol. The callback function will be
called by \s-1DTLS\s0 for every new \s-1DTLS\s0 packet that is sent.
.SH &quot;RETURN VALUES&quot;
.IX Header &quot;RETURN VALUES&quot;
Returns void.
.SH &quot;HISTORY&quot;
.IX Header &quot;HISTORY&quot;
The \fBDTLS_set_timer_cb()\fR function was added in OpenSSL 1.1.1.
.SH &quot;COPYRIGHT&quot;
.IX Header &quot;COPYRIGHT&quot;
Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L&quot;License\*(R&quot;).  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
&lt;https://www.openssl.org/source/license.html&gt;.
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