SSL: always renewing tickets with TLSv1.3 (ticket #1892). Chrome only uses TLS session tickets once with TLS 1.3, likely following RFC 8446 Appendix C.4 recommendation. With OpenSSL, this works fine with built-in session tickets, since these are explicitly renewed in case of TLS 1.3 on each session reuse, but results in only two connections being reused after an initial handshake when using ssl_session_ticket_key. Fix is to always renew TLS session tickets in case of TLS 1.3 when using ssl_session_ticket_key, similarly to how it is done by OpenSSL internally.

/*
 * Copyright (C) Ruslan Ermilov
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_RWLOCK_H_INCLUDED_
#define _NGX_RWLOCK_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


void ngx_rwlock_wlock(ngx_atomic_t *lock);
void ngx_rwlock_rlock(ngx_atomic_t *lock);
void ngx_rwlock_unlock(ngx_atomic_t *lock);
void ngx_rwlock_downgrade(ngx_atomic_t *lock);


#endif /* _NGX_RWLOCK_H_INCLUDED_ */