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Diffstat (limited to '')
| -rw-r--r-- | server/mpm/config.m4 | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/server/mpm/config.m4 b/server/mpm/config.m4 new file mode 100644 index 0000000..6d3ab86 --- /dev/null +++ b/server/mpm/config.m4 @@ -0,0 +1,128 @@ +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 +} |