Mercurial > hg > nginx
view auto/os/darwin @ 8078:5244d3b165ff
SSL: single allocation in session cache on 32-bit platforms.
Given the present typical SSL session sizes, on 32-bit platforms it is
now beneficial to store all data in a single allocation, since rbtree
node + session id + ASN1 representation of a session takes 256 bytes of
shared memory (36 + 32 + 150 = about 218 bytes plus SNI server name).
Storing all data in a single allocation is beneficial for SNI names up to
about 40 characters long and makes it possible to store about 4000 sessions
in one megabyte (instead of about 3000 sessions now). This also slightly
simplifies the code.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 12 Oct 2022 20:14:40 +0300 |
parents | 9fb994513776 |
children |
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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