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dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2010-2013 Cisco Systems, Inc. All rights reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
dnl
dnl $HEADER$
dnl
# There will only be one component used in this framework, and it will
# be selected at configure time by priority. Components must set
# their priorities in their configure.m4 files. They must also set
# the shell variable $opal_event_base_include to a header file name
# (relative to opal/mca/event) that will be included in
# opal/mca/event/event.h.
dnl We only want one winning component (vs. STOP_AT_FIRST_PRIORITY,
dnl which will allow all components of the same priority who succeed to
dnl win)
m4_define(MCA_opal_event_CONFIGURE_MODE, STOP_AT_FIRST)
AC_DEFUN([MCA_opal_event_CONFIG],[
opal_event_base_include=
# configure all the components
MCA_CONFIGURE_FRAMEWORK($1, $2, 1)
# We must have found exactly 1 static component, or we can't
# continue. STOP_AT_FIRST will guarantee that we find at most
# one. We need to check here that we found *at least* one.
AS_IF([test "$MCA_opal_event_STATIC_COMPONENTS" = ""],
[AC_MSG_WARN([Did not find a suitable static opal event component])
AC_MSG_ERROR([Cannot continue])])
# We need to find out what the underlying component set
# HAVE_WORKING_EVENTOPS was set to. This is for systems that
# don't have working poll(), etc. (e.g., Cray) -- we still need an
# event component (for timers, etc.), but we don't have working
# event ops. Ensure that it was set by the component.
echo " "
AC_MSG_CHECKING([if have working event ops for the event framework])
AS_IF([test "$OPAL_HAVE_WORKING_EVENTOPS" = ""],
[AC_MSG_RESULT([unknown])
AC_MSG_WARN([Event component did not set OPAL_HAVE_WORKING_EVENTOPS])
AC_MSG_ERROR([Cannot continue])],
[AS_IF([test "$OPAL_HAVE_WORKING_EVENTOPS" = "1"],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])])
AC_DEFINE_UNQUOTED(OPAL_HAVE_WORKING_EVENTOPS,
[$OPAL_HAVE_WORKING_EVENTOPS],
[Whether our event component has working event operations or not (if not, then assumedly it only has working timers and signals)])
# The winning component will have told us where their header file
# is located
AC_MSG_CHECKING([for winning event component header file])
AS_IF([test "$opal_event_base_include" = ""],
[AC_MSG_RESULT([missing])
AC_MSG_WARN([Missing implementation header])
AC_MSG_ERROR([Cannot continue])])
AC_DEFINE_UNQUOTED([MCA_event_IMPLEMENTATION_HEADER],
["opal/mca/event/$opal_event_base_include"],
[Header to include for event implementation])
AC_MSG_RESULT([$opal_event_base_include])
])dnl
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