| 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 |
| ]) |
| |
| dnl See if APR has skiplist |
| dnl The base httpd prereq is APR 1.4.x, so we don't have to consider |
| dnl earlier versions. |
| case $APR_VERSION in |
| 1.4*) |
| apr_has_skiplist=no |
| ;; |
| *) |
| apr_has_skiplist=yes |
| esac |
| |
| 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],[ |
| 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 |
| } |
| |
| ap_mpm_supports_shared () |
| { |
| eval "tmp=\$ap_supported_mpm_$1" |
| if test "$tmp" = "shared"; 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 $ap_enabled_mpms; do |
| eval "tmp=\$ap_threaded_mpm_$mpm" |
| if test "$tmp" = "yes"; then |
| return 0 |
| fi |
| done |
| return 1 |
| } |
| |
| ap_mpm_is_enabled () |
| { |
| eval "tmp=\$ap_enabled_mpm_$1" |
| if test "$tmp" = "yes"; then |
| return 0 |
| else |
| return 1 |
| fi |
| } |