Mercurial > hg > nginx-quic
view src/os/unix/ngx_time.c @ 7377:d4448892a294
HTTP/2: flood detection.
Fixed uncontrolled memory growth in case peer is flooding us with
some frames (e.g., SETTINGS and PING) and doesn't read data. Fix
is to limit the number of allocated control frames.
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Tue, 06 Nov 2018 16:29:35 +0300 |
parents | d620f497c50f |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> /* * FreeBSD does not test /etc/localtime change, however, we can workaround it * by calling tzset() with TZ and then without TZ to update timezone. * The trick should work since FreeBSD 2.1.0. * * Linux does not test /etc/localtime change in localtime(), * but may stat("/etc/localtime") several times in every strftime(), * therefore we use it to update timezone. * * Solaris does not test /etc/TIMEZONE change too and no workaround available. */ void ngx_timezone_update(void) { #if (NGX_FREEBSD) if (getenv("TZ")) { return; } putenv("TZ=UTC"); tzset(); unsetenv("TZ"); tzset(); #elif (NGX_LINUX) time_t s; struct tm *t; char buf[4]; s = time(0); t = localtime(&s); strftime(buf, 4, "%H", t); #endif } void ngx_localtime(time_t s, ngx_tm_t *tm) { #if (NGX_HAVE_LOCALTIME_R) (void) localtime_r(&s, tm); #else ngx_tm_t *t; t = localtime(&s); *tm = *t; #endif tm->ngx_tm_mon++; tm->ngx_tm_year += 1900; } void ngx_libc_localtime(time_t s, struct tm *tm) { #if (NGX_HAVE_LOCALTIME_R) (void) localtime_r(&s, tm); #else struct tm *t; t = localtime(&s); *tm = *t; #endif } void ngx_libc_gmtime(time_t s, struct tm *tm) { #if (NGX_HAVE_LOCALTIME_R) (void) gmtime_r(&s, tm); #else struct tm *t; t = gmtime(&s); *tm = *t; #endif }