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dnl common platform checks needed by MPMs, methods for MPMs to state
dnl their support for the platform, functions to query MPM properties
APR_CHECK_APR_DEFINE(APR_HAS_THREADS)
have_threaded_sig_graceful=yes
case $host in
*-linux-*)
case `uname -r` in
2.0* )
dnl Threaded MPM's are not supported on Linux 2.0
dnl as on 2.0 the linuxthreads library uses SIGUSR1
dnl and SIGUSR2 internally
have_threaded_sig_graceful=no
;;
esac
;;
esac
dnl See if APR supports APR_POLLSET_THREADSAFE.
dnl XXX This hack tests for the underlying functions used by APR when it
dnl XXX supports APR_POLLSET_THREADSAFE.
dnl FIXME with a run-time check for
dnl apr_pollset_create(,,APR_POLLSET_THREADSAFE) == APR_SUCCESS
AC_CHECK_FUNCS(kqueue port_create epoll_create)
if test "$ac_cv_func_kqueue$ac_cv_func_port_create$ac_cv_func_epoll_create" != "nonono"; then
have_threadsafe_pollset=yes
else
have_threadsafe_pollset=no
fi
dnl See if this is a forking platform w.r.t. MPMs
case $host in
*mingw32* | *os2-emx*)
forking_mpms_supported=no
;;
*)
forking_mpms_supported=yes
;;
esac
dnl APACHE_MPM_SUPPORTED(name, supports-shared, is_threaded)
AC_DEFUN(APACHE_MPM_SUPPORTED,[
SUPPORTED_MPMS="$SUPPORTED_MPMS $1 "
if test "$3" = "yes"; then
THREADED_MPMS="$THREADED_MPMS $1 "
fi
])dnl
dnl APACHE_MPM_ENABLED(name)
AC_DEFUN(APACHE_MPM_ENABLED,[
if ap_mpm_is_enabled $1; then
:
else
ENABLED_MPMS="$ENABLED_MPMS $1 "
fi
])dnl
ap_mpm_is_supported ()
{
if echo "$SUPPORTED_MPMS" | grep " $1 " >/dev/null; then
return 0
else
return 1
fi
}
ap_mpm_is_threaded ()
{
if test "$mpm_build" = "shared" -a ac_cv_define_APR_HAS_THREADS = "yes"; then
return 0
fi
for mpm in $ENABLED_MPMS; do
if echo "$THREADED_MPMS" | grep " $mpm " >/dev/null; then
return 0
fi
done
return 1
}
ap_mpm_is_enabled ()
{
if echo "$ENABLED_MPMS" | grep " $1 " >/dev/null; then
return 0
else
return 1
fi
}
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