view auto/os/darwin @ 3440:88741ec7731a stable-0.7

merge r3294, r3305: Fix a bug introduced in r2032: After a child process has read a terminate message from a channel, the process tries to read the channel again. The kernel (at least FreeBSD) may preempt the process and sends a SIGIO signal to a master process. The master process sends a new terminate message, the kernel switches again to the the child process, and the child process reads the messages instead of an EAGAIN error. And this may repeat over and over. Being that the child process can not exit the cycle and test the termination flag set by the message handler. The fix disallow the master process to send a new terminate message on SIGIO signal reception. It may send the message only on SIGALARM signal.
author Igor Sysoev <igor@sysoev.ru>
date Mon, 01 Feb 2010 15:49:36 +0000
parents 345a014436d4
children d620f497c50f
line wrap: on
line source


# Copyright (C) Igor Sysoev


have=NGX_DARWIN . auto/have_headers

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



ngx_spacer='
'

# 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()

CC_AUX_FLAGS="$CC_AUX_FLAGS"
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 [ $ngx_found = yes ]; then
    have=NGX_HAVE_SENDFILE . auto/have
    CORE_SRCS="$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, n;
                  n = OSAtomicCompareAndSwap32Barrier(0, 1, lock)"
. auto/feature