# Copyright (C) Igor Sysoev
# Copyright (C) NGINX, Inc.


# Linux epoll.

nxt_feature="Linux epoll"
nxt_feature_name=NXT_HAVE_EPOLL
nxt_feature_run=
nxt_feature_incs=
nxt_feature_libs=
nxt_feature_test="#include <sys/epoll.h>
                  #include <unistd.h>

                  int main() {
                      int  n;

                      n = epoll_create(1);
                      close(n);
                      return 0;
                  }"
. auto/feature

if [ $nxt_found = yes ]; then
    NXT_HAVE_EPOLL=YES

    nxt_feature="Linux signalfd()"
    nxt_feature_name=NXT_HAVE_SIGNALFD
    nxt_feature_run=
    nxt_feature_incs=
    nxt_feature_libs=
    nxt_feature_test="#include <signal.h>
                      #include <sys/signalfd.h>
                      #include <unistd.h>

                      int main() {
                          int       n;
                          sigset_t  mask;

                          sigemptyset(&mask);
                          n = signalfd(-1, &mask, 0);
                          close(n);
                          return 0;
                      }"
    . auto/feature


    nxt_feature="Linux eventfd()"
    nxt_feature_name=NXT_HAVE_EVENTFD
    nxt_feature_run=
    nxt_feature_incs=
    nxt_feature_libs=
    nxt_feature_test="#include <sys/eventfd.h>
                      #include <unistd.h>

                      int main() {
                          int  n;

                          n = eventfd(0, 0);
                          close(n);
                          return 0;
                      }"
    . auto/feature

else
    NXT_HAVE_EPOLL=NO
fi


# FreeBSD, MacOSX, NetBSD, OpenBSD kqueue.

nxt_feature="kqueue"
nxt_feature_name=NXT_HAVE_KQUEUE
nxt_feature_run=
nxt_feature_incs=
nxt_feature_libs=
nxt_feature_test="#include <sys/types.h>
                  #include <sys/event.h>
                  #include <unistd.h>

                  int main() {
                      int  n;

                      n = kqueue();
                      close(n);
                      return 0;
                  }"
. auto/feature

if [ $nxt_found = yes ]; then
    NXT_HAVE_KQUEUE=YES

    nxt_feature="kqueue EVFILT_USER"
    nxt_feature_name=NXT_HAVE_EVFILT_USER
    nxt_feature_run=
    nxt_feature_incs=
    nxt_feature_libs=
    nxt_feature_test="#include <stdlib.h>
                      #include <sys/types.h>
                      #include <sys/event.h>

                      int main() {
                          struct kevent  kev;

                          kev.filter = EVFILT_USER;
                          kevent(0, &kev, 1, NULL, 0, NULL);
                          return 0;
                      }"
    . auto/feature

else
    NXT_HAVE_KQUEUE=NO
fi


# Solaris event port.

nxt_feature="Solaris event port"
nxt_feature_name=NXT_HAVE_EVENTPORT
nxt_feature_run=
nxt_feature_incs=
nxt_feature_libs=
nxt_feature_test="#include <port.h>
                  #include <unistd.h>

                  int main() {
                      int  n;

                      n = port_create();
                      close(n);
                      return 0;
                  }"
. auto/feature

if [ $nxt_found = yes ]; then
    NXT_HAVE_EVENTPORT=YES
else
    NXT_HAVE_EVENTPORT=NO
fi


# Solaris, HP-UX, IRIX, Tru64 UNIX /dev/poll.

nxt_feature="/dev/poll"
nxt_feature_name=NXT_HAVE_DEVPOLL
nxt_feature_run=yes
nxt_feature_incs=
nxt_feature_libs=
nxt_feature_test="#include <fcntl.h>
                  #include <sys/ioctl.h>
                  #include <sys/devpoll.h>
                  #include <unistd.h>

                  int main() {
                      int  n;

                      n = open(\"/dev/poll\", O_RDWR);
                      close(n);
                      return 0;
                  }"
. auto/feature

if [ $nxt_found = yes ]; then
    NXT_HAVE_DEVPOLL=YES
else
    NXT_HAVE_DEVPOLL=NO
fi


# AIX pollset.

nxt_feature="AIX pollset"
nxt_feature_name=NXT_HAVE_POLLSET
nxt_feature_run=yes
nxt_feature_incs=
nxt_feature_libs=
nxt_feature_test="#include <fcntl.h>
                  #include <sys/poll.h>
                  #include <sys/pollset.h>
                  #include <unistd.h>

                  int main() {
                      pollset_t  n;

                      n = pollset_create(-1);
                      pollset_destroy(n);
                      return 0;
                  }"
. auto/feature

if [ $nxt_found = yes ]; then
    NXT_HAVE_POLLSET=YES
else
    NXT_HAVE_POLLSET=NO
fi