-AC_MSG_CHECKING(which MPM to use)
-AC_ARG_WITH(mpm,
-APACHE_HELP_STRING(--with-mpm=MPM,Choose the process model for Apache to use.
- MPM={simple|event|worker|prefork|mpmt_os2|winnt}
- Specify "shared" instead of an MPM name to load MPMs dynamically.
-),[
- APACHE_MPM=$withval
-],[
- if test "x$APACHE_MPM" = "x"; then
- APACHE_MPM=simple
- fi
+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 supports
+dnl XXX APR_POLLSET_THREADSAFE, and duplicates APR's Darwin version check.
+dnl A run-time check for
+dnl apr_pollset_create(,,APR_POLLSET_THREADSAFE) == APR_SUCCESS
+dnl would be great but an in-tree apr (srclib/apr) hasn't been built yet.
+
+AC_CACHE_CHECK([whether APR supports thread-safe pollsets], [ac_cv_have_threadsafe_pollset], [
+ case $host in
+ *-apple-darwin[[1-9]].*)
+ APR_SETIFNULL(ac_cv_func_kqueue, [no])
+ ;;
+ esac
+ AC_CHECK_FUNCS(kqueue port_create epoll_create)
+ if test "$ac_cv_func_kqueue$ac_cv_func_port_create$ac_cv_func_epoll_create" != "nonono"; then
+ ac_cv_have_threadsafe_pollset=yes
+ else
+ ac_cv_have_threadsafe_pollset=no
+ fi
])
-AC_MSG_RESULT($APACHE_MPM)
-apache_cv_mpm=$APACHE_MPM
+dnl See if this is a forking platform w.r.t. MPMs
+case $host in
+ *mingw32* | *os2-emx*)
+ forking_mpms_supported=no
+ ;;
+ *)
+ forking_mpms_supported=yes
+ ;;
+esac
-dnl Note that a build with an explicitly loaded MPM must support threaded MPMs.
-ap_mpm_is_threaded ()
-{
- if test "$apache_cv_mpm" = "shared" -o "$apache_cv_mpm" = "worker" -o "$apache_cv_mpm" = "event" -o "$apache_cv_mpm" = "simple" -o "$apache_cv_mpm" = "winnt" ; then
- return 0
+dnl APACHE_MPM_SUPPORTED(name, supports-shared, is_threaded)
+AC_DEFUN(APACHE_MPM_SUPPORTED,[
+ if test "$2" = "yes"; then
+ eval "ap_supported_mpm_$1=shared"
+ ap_supported_shared_mpms="$ap_supported_shared_mpms $1 "
+ else
+ eval "ap_supported_mpm_$1=static"
+ fi
+ if test "$3" = "yes"; then
+ eval "ap_threaded_mpm_$1=yes"
+ fi
+])dnl
+
+dnl APACHE_MPM_ENABLED(name)
+AC_DEFUN(APACHE_MPM_ENABLED,[
+ if ap_mpm_is_enabled $1; then
+ :
else
+ eval "ap_enabled_mpm_$1=yes"
+ ap_enabled_mpms="$ap_enabled_mpms $1 "
+ fi
+])dnl
+
+ap_mpm_is_supported ()
+{
+ eval "tmp=\$ap_supported_mpm_$1"
+ if test -z "$tmp"; then
return 1
+ else
+ return 0
fi
}
-dnl No such check for a shared MPM.
-ap_mpm_is_experimental ()
+ap_mpm_supports_shared ()
{
- if test "$apache_cv_mpm" = "event"; then
+ eval "tmp=\$ap_supported_mpm_$1"
+ if test "$tmp" = "shared"; then
return 0
else
return 1
fi
}
-if ap_mpm_is_threaded; then
- APR_CHECK_APR_DEFINE(APR_HAS_THREADS)
-
- if test "x$ac_cv_define_APR_HAS_THREADS" = "xno"; then
- AC_MSG_RESULT(The currently selected MPM requires threads which your system seems to lack)
- AC_MSG_CHECKING(checking for replacement)
- AC_MSG_RESULT(prefork selected)
- apache_cv_mpm=prefork
- else
- case $host in
- *-linux-*)
- case `uname -r` in
- 2.0* )
- dnl Threaded MPM's are not supported on Linux 2.0
- dnl as on 2.0 the linuxthreads library uses SIGUSR1
- dnl and SIGUSR2 internally
- echo "Threaded MPM's are not supported on this platform"
- AC_MSG_CHECKING(checking for replacement)
- AC_MSG_RESULT(prefork selected)
- apache_cv_mpm=prefork
- ;;
- esac
- ;;
- esac
- fi
-fi
-
-APACHE_FAST_OUTPUT(server/mpm/Makefile)
-
-if test "$apache_cv_mpm" = "shared"; then
- MPM_NAME=""
- MPM_SUBDIR_NAME=""
- MPM_LIB=""
- MPM_DIR=""
-else
- MPM_NAME=$apache_cv_mpm
- if ap_mpm_is_experimental; then
- AC_MSG_WARN(You have selected an EXPERIMENTAL MPM. Be warned!)
- MPM_SUBDIR_NAME=experimental/$MPM_NAME
- else
- MPM_SUBDIR_NAME=$MPM_NAME
- fi
- MPM_DIR=server/mpm/$MPM_SUBDIR_NAME
- MPM_LIB=$MPM_DIR/lib${MPM_NAME}.la
+ap_mpm_is_threaded ()
+{
+ if test "$mpm_build" = "shared" -a ac_cv_define_APR_HAS_THREADS = "yes"; then
+ return 0
+ fi
- APACHE_SUBST(MPM_NAME)
- APACHE_SUBST(MPM_SUBDIR_NAME)
- MODLIST="$MODLIST mpm_${MPM_NAME}"
-fi
+ for mpm in $ap_enabled_mpms; do
+ eval "tmp=\$ap_threaded_mpm_$mpm"
+ if test "$tmp" = "yes"; then
+ return 0
+ fi
+ done
+ return 1
+}
-APACHE_SUBST(MPM_NAME)
-APACHE_SUBST(MPM_SUBDIR_NAME)
+ap_mpm_is_enabled ()
+{
+ eval "tmp=\$ap_enabled_mpm_$1"
+ if test "$tmp" = "yes"; then
+ return 0
+ else
+ return 1
+ fi
+}
projects / apache / blobdiff