mirror/nginx
1
0
Fork 0
mirror of https://github.com/nginx/nginx.git synced 2024-12-04 13:59:00 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity
0f843cfb74
nginx/auto/unix
Maxim Dounin fac4c7bdf5 Events: available bytes calculation via ioctl(FIONREAD). 
This makes it possible to avoid looping for a long time while working
with a fast enough peer when data are added to the socket buffer faster
than we are able to read and process them (ticket #1431).  This is
basically what we already do on FreeBSD with kqueue, where information
about the number of bytes in the socket buffer is returned by
the kevent() call.

With other event methods rev->available is now set to -1 when the socket
is ready for reading.  Later in ngx_recv() and ngx_recv_chain(), if
full buffer is received, real number of bytes in the socket buffer is
retrieved using ioctl(FIONREAD).  Reading more than this number of bytes
ensures that even with edge-triggered event methods the event will be
triggered again, so it is safe to stop processing of the socket and
switch to other connections.

Using ioctl(FIONREAD) only after reading a full buffer is an optimization.
With this approach we only call ioctl(FIONREAD) when there are at least
two recv()/readv() calls.
2019-10-17 16:02:19 +03:00

1040 lines
26 KiB
Plaintext
Raw Blame History

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.
NGX_USER=${NGX_USER:-nobody}
if [ -z "$NGX_GROUP" ]; then
if [ $NGX_USER = nobody ]; then
if grep nobody /etc/group 2>&1 >/dev/null; then
echo "checking for nobody group ... found"
NGX_GROUP=nobody
else
echo "checking for nobody group ... not found"
if grep nogroup /etc/group 2>&1 >/dev/null; then
echo "checking for nogroup group ... found"
NGX_GROUP=nogroup
else
echo "checking for nogroup group ... not found"
NGX_GROUP=nobody
fi
fi
else
NGX_GROUP=$NGX_USER
fi
fi
ngx_feature="poll()"
ngx_feature_name=
ngx_feature_run=no
ngx_feature_incs="#include <poll.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="int n; struct pollfd pl;
pl.fd = 0;
pl.events = 0;
pl.revents = 0;
n = poll(&pl, 1, 0);
if (n == -1) return 1"
. auto/feature
if [ $ngx_found = no ]; then
EVENT_POLL=NONE
fi
ngx_feature="/dev/poll"
ngx_feature_name="NGX_HAVE_DEVPOLL"
ngx_feature_run=no
ngx_feature_incs="#include <sys/devpoll.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="int n, dp; struct dvpoll dvp;
dp = 0;
dvp.dp_fds = NULL;
dvp.dp_nfds = 0;
dvp.dp_timeout = 0;
n = ioctl(dp, DP_POLL, &dvp);
if (n == -1) return 1"
. auto/feature
if [ $ngx_found = yes ]; then
CORE_SRCS="$CORE_SRCS $DEVPOLL_SRCS"
EVENT_MODULES="$EVENT_MODULES $DEVPOLL_MODULE"
EVENT_FOUND=YES
fi
if test -z "$NGX_KQUEUE_CHECKED"; then
ngx_feature="kqueue"
ngx_feature_name="NGX_HAVE_KQUEUE"
ngx_feature_run=no
ngx_feature_incs="#include <sys/event.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="(void) kqueue()"
. auto/feature
if [ $ngx_found = yes ]; then
have=NGX_HAVE_CLEAR_EVENT . auto/have
EVENT_MODULES="$EVENT_MODULES $KQUEUE_MODULE"
CORE_SRCS="$CORE_SRCS $KQUEUE_SRCS"
EVENT_FOUND=YES
ngx_feature="kqueue's NOTE_LOWAT"
ngx_feature_name="NGX_HAVE_LOWAT_EVENT"
ngx_feature_run=no
ngx_feature_incs="#include <sys/event.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct kevent kev;
kev.fflags = NOTE_LOWAT;
(void) kev"
. auto/feature
ngx_feature="kqueue's EVFILT_TIMER"
ngx_feature_name="NGX_HAVE_TIMER_EVENT"
ngx_feature_run=yes
ngx_feature_incs="#include <sys/event.h>
#include <sys/time.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="int kq;
struct kevent kev;
struct timespec ts;
if ((kq = kqueue()) == -1) return 1;
kev.ident = 0;
kev.filter = EVFILT_TIMER;
kev.flags = EV_ADD|EV_ENABLE;
kev.fflags = 0;
kev.data = 1000;
kev.udata = 0;
ts.tv_sec = 0;
ts.tv_nsec = 0;
if (kevent(kq, &kev, 1, &kev, 1, &ts) == -1) return 1;
if (kev.flags & EV_ERROR) return 1;"
. auto/feature
fi
fi
if [ "$NGX_SYSTEM" = "NetBSD" ]; then
# NetBSD 2.0 incompatibly defines kevent.udata as "intptr_t"
cat << END >> $NGX_AUTO_CONFIG_H
#define NGX_KQUEUE_UDATA_T
END
else
cat << END >> $NGX_AUTO_CONFIG_H
#define NGX_KQUEUE_UDATA_T (void *)
END
fi
ngx_feature="crypt()"
ngx_feature_name=
ngx_feature_run=no
ngx_feature_incs=
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="crypt(\"test\", \"salt\");"
. auto/feature
if [ $ngx_found = no ]; then
ngx_feature="crypt() in libcrypt"
ngx_feature_name=
ngx_feature_run=no
ngx_feature_incs=
ngx_feature_path=
ngx_feature_libs=-lcrypt
. auto/feature
if [ $ngx_found = yes ]; then
CRYPT_LIB="-lcrypt"
fi
fi
ngx_feature="F_READAHEAD"
ngx_feature_name="NGX_HAVE_F_READAHEAD"
ngx_feature_run=no
ngx_feature_incs="#include <fcntl.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="fcntl(0, F_READAHEAD, 1);"
. auto/feature
ngx_feature="posix_fadvise()"
ngx_feature_name="NGX_HAVE_POSIX_FADVISE"
ngx_feature_run=no
ngx_feature_incs="#include <fcntl.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="posix_fadvise(0, 0, 0, POSIX_FADV_SEQUENTIAL);"
. auto/feature
ngx_feature="O_DIRECT"
ngx_feature_name="NGX_HAVE_O_DIRECT"
ngx_feature_run=no
ngx_feature_incs="#include <fcntl.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="fcntl(0, F_SETFL, O_DIRECT);"
. auto/feature
if [ $ngx_found = yes -a "$NGX_SYSTEM" = "Linux" ]; then
have=NGX_HAVE_ALIGNED_DIRECTIO . auto/have
fi
ngx_feature="F_NOCACHE"
ngx_feature_name="NGX_HAVE_F_NOCACHE"
ngx_feature_run=no
ngx_feature_incs="#include <fcntl.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="fcntl(0, F_NOCACHE, 1);"
. auto/feature
ngx_feature="directio()"
ngx_feature_name="NGX_HAVE_DIRECTIO"
ngx_feature_run=no
ngx_feature_incs="#include <sys/types.h>
#include <sys/fcntl.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="directio(0, DIRECTIO_ON);"
. auto/feature
ngx_feature="statfs()"
ngx_feature_name="NGX_HAVE_STATFS"
ngx_feature_run=no
ngx_feature_incs="$NGX_INCLUDE_SYS_PARAM_H
$NGX_INCLUDE_SYS_MOUNT_H
$NGX_INCLUDE_SYS_VFS_H"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct statfs fs;
statfs(\".\", &fs);"
. auto/feature
ngx_feature="statvfs()"
ngx_feature_name="NGX_HAVE_STATVFS"
ngx_feature_run=no
ngx_feature_incs="#include <sys/types.h>
#include <sys/statvfs.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct statvfs fs;
statvfs(\".\", &fs);"
. auto/feature
ngx_feature="dlopen()"
ngx_feature_name="NGX_HAVE_DLOPEN"
ngx_feature_run=no
ngx_feature_incs="#include <dlfcn.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="dlopen(NULL, RTLD_NOW | RTLD_GLOBAL); dlsym(NULL, \"\")"
. auto/feature
if [ $ngx_found = no ]; then
ngx_feature="dlopen() in libdl"
ngx_feature_libs="-ldl"
. auto/feature
if [ $ngx_found = yes ]; then
CORE_LIBS="$CORE_LIBS -ldl"
NGX_LIBDL="-ldl"
fi
fi
ngx_feature="sched_yield()"
ngx_feature_name="NGX_HAVE_SCHED_YIELD"
ngx_feature_run=no
ngx_feature_incs="#include <sched.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="sched_yield()"
. auto/feature
if [ $ngx_found = no ]; then
ngx_feature="sched_yield() in librt"
ngx_feature_libs="-lrt"
. auto/feature
if [ $ngx_found = yes ]; then
CORE_LIBS="$CORE_LIBS -lrt"
fi
fi
ngx_feature="sched_setaffinity()"
ngx_feature_name="NGX_HAVE_SCHED_SETAFFINITY"
ngx_feature_run=no
ngx_feature_incs="#include <sched.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="cpu_set_t mask;
CPU_ZERO(&mask);
sched_setaffinity(0, sizeof(cpu_set_t), &mask)"
. auto/feature
ngx_feature="SO_SETFIB"
ngx_feature_name="NGX_HAVE_SETFIB"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_SETFIB, NULL, 0)"
. auto/feature
ngx_feature="SO_REUSEPORT"
ngx_feature_name="NGX_HAVE_REUSEPORT"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_REUSEPORT, NULL, 0)"
. auto/feature
ngx_feature="SO_ACCEPTFILTER"
ngx_feature_name="NGX_HAVE_DEFERRED_ACCEPT"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_ACCEPTFILTER, NULL, 0)"
. auto/feature
# OpenBSD bind to any address for transparent proxying
ngx_feature="SO_BINDANY"
ngx_feature_name="NGX_HAVE_TRANSPARENT_PROXY"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_BINDANY, NULL, 0)"
. auto/feature
# Linux transparent proxying
ngx_feature="IP_TRANSPARENT"
ngx_feature_name="NGX_HAVE_TRANSPARENT_PROXY"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_TRANSPARENT, NULL, 0)"
. auto/feature
# FreeBSD bind to any address for transparent proxying
ngx_feature="IP_BINDANY"
ngx_feature_name="NGX_HAVE_TRANSPARENT_PROXY"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_BINDANY, NULL, 0)"
. auto/feature
# Linux IP_BIND_ADDRESS_NO_PORT
ngx_feature="IP_BIND_ADDRESS_NO_PORT"
ngx_feature_name="NGX_HAVE_IP_BIND_ADDRESS_NO_PORT"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_BIND_ADDRESS_NO_PORT, NULL, 0)"
. auto/feature
# BSD way to get IPv4 datagram destination address
ngx_feature="IP_RECVDSTADDR"
ngx_feature_name="NGX_HAVE_IP_RECVDSTADDR"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_RECVDSTADDR, NULL, 0)"
. auto/feature
# BSD way to set IPv4 datagram source address
ngx_feature="IP_SENDSRCADDR"
ngx_feature_name="NGX_HAVE_IP_SENDSRCADDR"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_SENDSRCADDR, NULL, 0)"
. auto/feature
# Linux way to get IPv4 datagram destination address
ngx_feature="IP_PKTINFO"
ngx_feature_name="NGX_HAVE_IP_PKTINFO"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct in_pktinfo pkt;
pkt.ipi_spec_dst.s_addr = INADDR_ANY;
(void) pkt;
setsockopt(0, IPPROTO_IP, IP_PKTINFO, NULL, 0)"
. auto/feature
# RFC 3542 way to get IPv6 datagram destination address
ngx_feature="IPV6_RECVPKTINFO"
ngx_feature_name="NGX_HAVE_IPV6_RECVPKTINFO"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, IPPROTO_IPV6, IPV6_RECVPKTINFO, NULL, 0)"
. auto/feature
ngx_feature="TCP_DEFER_ACCEPT"
ngx_feature_name="NGX_HAVE_DEFERRED_ACCEPT"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_DEFER_ACCEPT, NULL, 0)"
. auto/feature
ngx_feature="TCP_KEEPIDLE"
ngx_feature_name="NGX_HAVE_KEEPALIVE_TUNABLE"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_KEEPIDLE, NULL, 0);
setsockopt(0, IPPROTO_TCP, TCP_KEEPINTVL, NULL, 0);
setsockopt(0, IPPROTO_TCP, TCP_KEEPCNT, NULL, 0)"
. auto/feature
ngx_feature="TCP_FASTOPEN"
ngx_feature_name="NGX_HAVE_TCP_FASTOPEN"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_FASTOPEN, NULL, 0)"
. auto/feature
ngx_feature="TCP_INFO"
ngx_feature_name="NGX_HAVE_TCP_INFO"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="socklen_t optlen = sizeof(struct tcp_info);
struct tcp_info ti;
ti.tcpi_rtt = 0;
ti.tcpi_rttvar = 0;
ti.tcpi_snd_cwnd = 0;
ti.tcpi_rcv_space = 0;
getsockopt(0, IPPROTO_TCP, TCP_INFO, &ti, &optlen)"
. auto/feature
ngx_feature="accept4()"
ngx_feature_name="NGX_HAVE_ACCEPT4"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="accept4(0, NULL, NULL, SOCK_NONBLOCK)"
. auto/feature
if [ $NGX_FILE_AIO = YES ]; then
ngx_feature="kqueue AIO support"
ngx_feature_name="NGX_HAVE_FILE_AIO"
ngx_feature_run=no
ngx_feature_incs="#include <aio.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct aiocb iocb;
iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT;
(void) aio_read(&iocb)"
. auto/feature
if [ $ngx_found = yes ]; then
CORE_SRCS="$CORE_SRCS $FILE_AIO_SRCS"
fi
if [ $ngx_found = no ]; then
ngx_feature="Linux AIO support"
ngx_feature_name="NGX_HAVE_FILE_AIO"
ngx_feature_run=no
ngx_feature_incs="#include <linux/aio_abi.h>
#include <sys/eventfd.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct iocb iocb;
iocb.aio_lio_opcode = IOCB_CMD_PREAD;
iocb.aio_flags = IOCB_FLAG_RESFD;
iocb.aio_resfd = -1;
(void) iocb;
(void) eventfd(0, 0)"
. auto/feature
if [ $ngx_found = yes ]; then
have=NGX_HAVE_EVENTFD . auto/have
have=NGX_HAVE_SYS_EVENTFD_H . auto/have
CORE_SRCS="$CORE_SRCS $LINUX_AIO_SRCS"
fi
fi
if [ $ngx_found = no ]; then
ngx_feature="Linux AIO support (SYS_eventfd)"
ngx_feature_incs="#include <linux/aio_abi.h>
#include <sys/syscall.h>"
ngx_feature_test="struct iocb iocb;
iocb.aio_lio_opcode = IOCB_CMD_PREAD;
iocb.aio_flags = IOCB_FLAG_RESFD;
iocb.aio_resfd = -1;
(void) iocb;
(void) SYS_eventfd"
. auto/feature
if [ $ngx_found = yes ]; then
have=NGX_HAVE_EVENTFD . auto/have
CORE_SRCS="$CORE_SRCS $LINUX_AIO_SRCS"
fi
fi
if [ $ngx_found = no ]; then
cat << END
$0: no supported file AIO was found
Currently file AIO is supported on FreeBSD 4.3+ and Linux 2.6.22+ only
END
exit 1
fi
else
ngx_feature="eventfd()"
ngx_feature_name="NGX_HAVE_EVENTFD"
ngx_feature_run=no
ngx_feature_incs="#include <sys/eventfd.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="(void) eventfd(0, 0)"
. auto/feature
if [ $ngx_found = yes ]; then
have=NGX_HAVE_SYS_EVENTFD_H . auto/have
fi
if [ $ngx_found = no ]; then
ngx_feature="eventfd() (SYS_eventfd)"
ngx_feature_incs="#include <sys/syscall.h>"
ngx_feature_test="(void) SYS_eventfd"
. auto/feature
fi
fi
have=NGX_HAVE_UNIX_DOMAIN . auto/have
ngx_feature_libs=
# C types
ngx_type="int"; . auto/types/sizeof
ngx_type="long"; . auto/types/sizeof
ngx_type="long long"; . auto/types/sizeof
ngx_type="void *"; . auto/types/sizeof; ngx_ptr_size=$ngx_size
ngx_param=NGX_PTR_SIZE; ngx_value=$ngx_size; . auto/types/value
# POSIX types
NGX_INCLUDE_AUTO_CONFIG_H="#include \"ngx_auto_config.h\""
ngx_type="uint32_t"; ngx_types="u_int32_t"; . auto/types/typedef
ngx_type="uint64_t"; ngx_types="u_int64_t"; . auto/types/typedef
ngx_type="sig_atomic_t"; ngx_types="int"; . auto/types/typedef
. auto/types/sizeof
ngx_param=NGX_SIG_ATOMIC_T_SIZE; ngx_value=$ngx_size; . auto/types/value
ngx_type="socklen_t"; ngx_types="int"; . auto/types/typedef
ngx_type="in_addr_t"; ngx_types="uint32_t u_int32_t"; . auto/types/typedef
ngx_type="in_port_t"; ngx_types="u_short"; . auto/types/typedef
ngx_type="rlim_t"; ngx_types="int"; . auto/types/typedef
. auto/types/uintptr_t
. auto/endianness
ngx_type="size_t"; . auto/types/sizeof
ngx_param=NGX_MAX_SIZE_T_VALUE; ngx_value=$ngx_max_value; . auto/types/value
ngx_param=NGX_SIZE_T_LEN; ngx_value=$ngx_max_len; . auto/types/value
ngx_type="off_t"; . auto/types/sizeof
ngx_param=NGX_MAX_OFF_T_VALUE; ngx_value=$ngx_max_value; . auto/types/value
ngx_param=NGX_OFF_T_LEN; ngx_value=$ngx_max_len; . auto/types/value
ngx_type="time_t"; . auto/types/sizeof
ngx_param=NGX_TIME_T_SIZE; ngx_value=$ngx_size; . auto/types/value
ngx_param=NGX_TIME_T_LEN; ngx_value=$ngx_max_len; . auto/types/value
ngx_param=NGX_MAX_TIME_T_VALUE; ngx_value=$ngx_max_value; . auto/types/value
# syscalls, libc calls and some features
ngx_feature="AF_INET6"
ngx_feature_name="NGX_HAVE_INET6"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct sockaddr_in6 sin6;
sin6.sin6_family = AF_INET6;
(void) sin6"
. auto/feature
ngx_feature="setproctitle()"
ngx_feature_name="NGX_HAVE_SETPROCTITLE"
ngx_feature_run=no
ngx_feature_incs="#include <stdlib.h>"
ngx_feature_path=
ngx_feature_libs=$NGX_SETPROCTITLE_LIB
ngx_feature_test="setproctitle(\"test\");"
. auto/feature
ngx_feature="pread()"
ngx_feature_name="NGX_HAVE_PREAD"
ngx_feature_run=no
ngx_feature_incs=
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="char buf[1]; ssize_t n; n = pread(0, buf, 1, 0);
if (n == -1) return 1"
. auto/feature
ngx_feature="pwrite()"
ngx_feature_name="NGX_HAVE_PWRITE"
ngx_feature_run=no
ngx_feature_incs=
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="char buf[1]; ssize_t n; n = pwrite(1, buf, 1, 0);
if (n == -1) return 1"
. auto/feature
# pwritev() was introduced in FreeBSD 6 and Linux 2.6.30, glibc 2.10
ngx_feature="pwritev()"
ngx_feature_name="NGX_HAVE_PWRITEV"
ngx_feature_run=no
ngx_feature_incs='#include <sys/uio.h>'
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="char buf[1]; struct iovec vec[1]; ssize_t n;
vec[0].iov_base = buf;
vec[0].iov_len = 1;
n = pwritev(1, vec, 1, 0);
if (n == -1) return 1"
. auto/feature
ngx_feature="sys_nerr"
ngx_feature_name="NGX_SYS_NERR"
ngx_feature_run=value
ngx_feature_incs='#include <errno.h>
#include <stdio.h>'
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test='printf("%d", sys_nerr);'
. auto/feature
if [ $ngx_found = no ]; then
# Cygiwn defines _sys_nerr
ngx_feature="_sys_nerr"
ngx_feature_name="NGX_SYS_NERR"
ngx_feature_run=value
ngx_feature_incs='#include <errno.h>
#include <stdio.h>'
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test='printf("%d", _sys_nerr);'
. auto/feature
fi
if [ $ngx_found = no ]; then
# Solaris has no sys_nerr
ngx_feature='maximum errno'
ngx_feature_name=NGX_SYS_NERR
ngx_feature_run=value
ngx_feature_incs='#include <errno.h>
#include <string.h>
#include <stdio.h>'
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test='int n;
char *p;
for (n = 1; n < 1000; n++) {
errno = 0;
p = strerror(n);
if (errno == EINVAL
|| p == NULL
|| strncmp(p, "Unknown error", 13) == 0)
{
break;
}
}
printf("%d", n);'
. auto/feature
fi
ngx_feature="localtime_r()"
ngx_feature_name="NGX_HAVE_LOCALTIME_R"
ngx_feature_run=no
ngx_feature_incs="#include <time.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct tm t; time_t c=0; localtime_r(&c, &t)"
. auto/feature
ngx_feature="clock_gettime(CLOCK_MONOTONIC)"
ngx_feature_name="NGX_HAVE_CLOCK_MONOTONIC"
ngx_feature_run=no
ngx_feature_incs="#include <time.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts)"
. auto/feature
if [ $ngx_found = no ]; then
# Linux before glibc 2.17, notably CentOS 6
ngx_feature="clock_gettime(CLOCK_MONOTONIC) in librt"
ngx_feature_libs="-lrt"
. auto/feature
if [ $ngx_found = yes ]; then
CORE_LIBS="$CORE_LIBS -lrt"
fi
fi
ngx_feature="posix_memalign()"
ngx_feature_name="NGX_HAVE_POSIX_MEMALIGN"
ngx_feature_run=no
ngx_feature_incs="#include <stdlib.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="void *p; int n; n = posix_memalign(&p, 4096, 4096);
if (n != 0) return 1"
. auto/feature
ngx_feature="memalign()"
ngx_feature_name="NGX_HAVE_MEMALIGN"
ngx_feature_run=no
ngx_feature_incs="#include <stdlib.h>
#include <malloc.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="void *p; p = memalign(4096, 4096);
if (p == NULL) return 1"
. auto/feature
ngx_feature="mmap(MAP_ANON|MAP_SHARED)"
ngx_feature_name="NGX_HAVE_MAP_ANON"
ngx_feature_run=yes
ngx_feature_incs="#include <sys/mman.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="void *p;
p = mmap(NULL, 4096, PROT_READ|PROT_WRITE,
MAP_ANON|MAP_SHARED, -1, 0);
if (p == MAP_FAILED) return 1;"
. auto/feature
ngx_feature='mmap("/dev/zero", MAP_SHARED)'
ngx_feature_name="NGX_HAVE_MAP_DEVZERO"
ngx_feature_run=yes
ngx_feature_incs="#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test='void *p; int fd;
fd = open("/dev/zero", O_RDWR);
p = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (p == MAP_FAILED) return 1;'
. auto/feature
ngx_feature="System V shared memory"
ngx_feature_name="NGX_HAVE_SYSVSHM"
ngx_feature_run=yes
ngx_feature_incs="#include <sys/ipc.h>
#include <sys/shm.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="int id;
id = shmget(IPC_PRIVATE, 4096, (SHM_R|SHM_W|IPC_CREAT));
if (id == -1) return 1;
shmctl(id, IPC_RMID, NULL);"
. auto/feature
ngx_feature="POSIX semaphores"
ngx_feature_name="NGX_HAVE_POSIX_SEM"
ngx_feature_run=yes
ngx_feature_incs="#include <semaphore.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="sem_t sem;
if (sem_init(&sem, 1, 0) == -1) return 1;
sem_destroy(&sem);"
. auto/feature
if [ $ngx_found = no ]; then
# Linux has POSIX semaphores in libpthread
ngx_feature="POSIX semaphores in libpthread"
ngx_feature_libs=-lpthread
. auto/feature
if [ $ngx_found = yes ]; then
CORE_LIBS="$CORE_LIBS -lpthread"
NGX_LIBPTHREAD="-lpthread"
fi
fi
if [ $ngx_found = no ]; then
# Solaris has POSIX semaphores in librt
ngx_feature="POSIX semaphores in librt"
ngx_feature_libs=-lrt
. auto/feature
if [ $ngx_found = yes ]; then
CORE_LIBS="$CORE_LIBS -lrt"
fi
fi
ngx_feature="struct msghdr.msg_control"
ngx_feature_name="NGX_HAVE_MSGHDR_MSG_CONTROL"
ngx_feature_run=no
ngx_feature_incs="#include <sys/socket.h>
#include <stdio.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct msghdr msg;
printf(\"%d\", (int) sizeof(msg.msg_control))"
. auto/feature
ngx_feature="ioctl(FIONBIO)"
ngx_feature_name="NGX_HAVE_FIONBIO"
ngx_feature_run=no
ngx_feature_incs="#include <sys/ioctl.h>
#include <stdio.h>
$NGX_INCLUDE_SYS_FILIO_H"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="int i = FIONBIO; printf(\"%d\", i)"
. auto/feature
ngx_feature="ioctl(FIONREAD)"
ngx_feature_name="NGX_HAVE_FIONREAD"
ngx_feature_run=no
ngx_feature_incs="#include <sys/ioctl.h>
#include <stdio.h>
$NGX_INCLUDE_SYS_FILIO_H"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="int i = FIONREAD; printf(\"%d\", i)"
. auto/feature
ngx_feature="struct tm.tm_gmtoff"
ngx_feature_name="NGX_HAVE_GMTOFF"
ngx_feature_run=no
ngx_feature_incs="#include <time.h>
#include <stdio.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct tm tm; tm.tm_gmtoff = 0;
printf(\"%d\", (int) tm.tm_gmtoff)"
. auto/feature
ngx_feature="struct dirent.d_namlen"
ngx_feature_name="NGX_HAVE_D_NAMLEN"
ngx_feature_run=no
ngx_feature_incs="#include <dirent.h>
#include <stdio.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct dirent dir; dir.d_namlen = 0;
printf(\"%d\", (int) dir.d_namlen)"
. auto/feature
ngx_feature="struct dirent.d_type"
ngx_feature_name="NGX_HAVE_D_TYPE"
ngx_feature_run=no
ngx_feature_incs="#include <dirent.h>
#include <stdio.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct dirent dir; dir.d_type = DT_REG;
printf(\"%d\", (int) dir.d_type)"
. auto/feature
ngx_feature="sysconf(_SC_NPROCESSORS_ONLN)"
ngx_feature_name="NGX_HAVE_SC_NPROCESSORS_ONLN"
ngx_feature_run=no
ngx_feature_incs=
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="sysconf(_SC_NPROCESSORS_ONLN)"
. auto/feature
ngx_feature="sysconf(_SC_LEVEL1_DCACHE_LINESIZE)"
ngx_feature_name="NGX_HAVE_LEVEL1_DCACHE_LINESIZE"
ngx_feature_run=no
ngx_feature_incs=
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="sysconf(_SC_LEVEL1_DCACHE_LINESIZE)"
. auto/feature
ngx_feature="openat(), fstatat()"
ngx_feature_name="NGX_HAVE_OPENAT"
ngx_feature_run=no
ngx_feature_incs="#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="struct stat sb;
openat(AT_FDCWD, \".\", O_RDONLY|O_NOFOLLOW);
fstatat(AT_FDCWD, \".\", &sb, AT_SYMLINK_NOFOLLOW);"
. auto/feature
ngx_feature="getaddrinfo()"
ngx_feature_name="NGX_HAVE_GETADDRINFO"
ngx_feature_run=no
ngx_feature_incs="#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>"
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test='struct addrinfo *res;
if (getaddrinfo("localhost", NULL, NULL, &res) != 0) return 1;
freeaddrinfo(res)'
. auto/feature
Reference in New Issue View Git Blame Copy Permalink