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Upstream: $upstream_cache_age variable. The variable reflects response age, including the time spent in the cache and the upstream response age as obtained from the "Age" header. If the response wasn't cached, the variable reflects the "Age" header of the upstream response. If the intended use case is to cache responses as per HTTP/1.1 caching model, the $upstream_cache_age variable can be used to provide the "Age" header with the "add_header" directive, such as: add_header Age $upstream_cache_age; This now removes the "Age" header if it was present. Further, the "expires" directives now removes the "Age" header if it was present in the response, as the "expires" directive assumes zero age when it adds "Expires" and "Cache-Control" headers.
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 18 Jul 2024 19:39:45 +0300
parents 9fb994513776
children
line wrap: on
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


have=NGX_DARWIN . auto/have_headers

CORE_INCS="$UNIX_INCS"
CORE_DEPS="$UNIX_DEPS $DARWIN_DEPS"
CORE_SRCS="$UNIX_SRCS $DARWIN_SRCS"



ngx_spacer='
'

MAIN_LINK=
MODULE_LINK="-shared -Wl,-undefined,dynamic_lookup"

CC_AUX_FLAGS="$CC_AUX_FLAGS -D__APPLE_USE_RFC_3542"


# kqueue

echo " + kqueue found"
have=NGX_HAVE_KQUEUE . auto/have
have=NGX_HAVE_CLEAR_EVENT . auto/have
EVENT_MODULES="$EVENT_MODULES $KQUEUE_MODULE"
CORE_SRCS="$CORE_SRCS $KQUEUE_SRCS"
EVENT_FOUND=YES
NGX_KQUEUE_CHECKED=YES

ngx_feature="kqueue's EVFILT_TIMER"
ngx_feature_name="NGX_HAVE_TIMER_EVENT"
ngx_feature_run=yes
ngx_feature_incs="#include <sys/event.h>
                  #include <sys/time.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="int      kq;
                  struct kevent    kev;
                  struct timespec  ts;

                  if ((kq = kqueue()) == -1) return 1;

                  kev.ident = 0;
                  kev.filter = EVFILT_TIMER;
                  kev.flags = EV_ADD|EV_ENABLE;
                  kev.fflags = 0;
                  kev.data = 1000;
                  kev.udata = 0;

                  ts.tv_sec = 0;
                  ts.tv_nsec = 0;

                  if (kevent(kq, &kev, 1, &kev, 1, &ts) == -1) return 1;

                  if (kev.flags & EV_ERROR) return 1;"

. auto/feature


ngx_feature="Darwin 64-bit kqueue millisecond timeout bug"
ngx_feature_name=NGX_DARWIN_KEVENT_BUG
ngx_feature_run=bug
ngx_feature_incs="#include <sys/event.h>
                  #include <sys/time.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="int  kq;
                  struct kevent    kev;
                  struct timespec  ts;
                  struct timeval   tv, tv0;

                  kq = kqueue();

                  ts.tv_sec = 0;
                  ts.tv_nsec = 999000000;

                  gettimeofday(&tv, 0);
                  kevent(kq, NULL, 0, &kev, 1, &ts);
                  gettimeofday(&tv0, 0);
                  timersub(&tv0, &tv, &tv);

                  if (tv.tv_sec * 1000000 + tv.tv_usec < 900000) return 1;"

. auto/feature


# sendfile()

ngx_feature="sendfile()"
ngx_feature_name="NGX_HAVE_SENDFILE"
ngx_feature_run=yes
ngx_feature_incs="#include <sys/types.h>
                  #include <sys/socket.h>
                  #include <sys/uio.h>
                  #include <sys/errno.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="int s = 0, fd = 1;
                  off_t n; off_t off = 0;
                  n = sendfile(s, fd, off, &n, NULL, 0);
                  if (n == -1 && errno == ENOSYS) return 1"
. auto/feature

if [ $ngx_found = yes ]; then
    CORE_SRCS="$CORE_SRCS $DARWIN_SENDFILE_SRCS"
fi


ngx_feature="atomic(3)"
ngx_feature_name=NGX_DARWIN_ATOMIC
ngx_feature_run=no
ngx_feature_incs="#include <libkern/OSAtomic.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="int32_t  lock = 0;
                  if (!OSAtomicCompareAndSwap32Barrier(0, 1, &lock)) return 1"
. auto/feature