GRAS_CHECK_STRUCT_COMPACTION
+dnl ##
+dnl ## CONTEXT IMPLEMENTATION
+dnl ##
+
SG_CONFIGURE_PART([Checking for threads, contexts or assimilated...])
-AC_CHECK_UCONTEXT
+
+dnl #
+dnl # 1. determine possibilities
+dnl #
+
+dnl # check for MCSC method
AC_MSG_CHECKING(on top of what can we build the contexts)
+AC_CHECK_HEADER(ucontext.h,,, [#include <sys/types.h>])
+AC_CHECK_FUNCS(makecontext swapcontext getcontext setcontext)
+AC_CHECK_MCSC(mcsc=yes, mcsc=no)
+
+dnl # check for pthread method
+AC_CHECK_HEADERS([pthread.h])
+AC_CHECK_LIB(pthread,pthread_create,pthread=yes, pthread=no)
+
+dnl #
+dnl # 2. make a general decision
+dnl #
+
+if test ".$mcsc" = .yes; then
+ mcsc=yes
+elif test ".$pthread" = .yes; then
+ pthread=yes
+else
+ AC_ERROR([no appropriate backend found])
+fi
+
+dnl #
+dnl # 3. allow decision to be overridden by user
+dnl #
+
+AC_MSG_CHECKING(what kind of backend should we use)
AC_ARG_WITH(context,
[ --with-context=[ucontext/pthread] Use either (System V) swapcontext or pthread [[default=auto]].],,
with_context=auto)
-
case $with_context in
ucontext) ;;
pthread) ;;
esac
if test "x$with_context" = "xucontext" ; then
- if test "x$ac_check_ucontext" = "xyes"; then
- AC_MSG_RESULT(found ucontext.h. Great!)
+ if test ".$mcsc" = .yes; then
+ AC_MSG_RESULT(found working ucontext. Great!)
AC_DEFINE([USE_UCONTEXT],1,[Define if we use ucontext or not])
else
ac_header=windows.h
if test "x$with_context" = "xpthread"; then
AC_CHECK_HEADERS([pthread.h])
-dnl A C_CHECK_LIB(pthread, pthread_mutex_lock, LIBS="$LIBS -lpthread")
AC_CHECK_LIB(pthread,pthread_create,,
[AC_MSG_ERROR([[Cannot find pthreads, no way (try --with-context=ucontext if you haven't already tried).]])])
AC_DEFINE([USE_PTHREADS],1,[Define if we use pthreads or not])
AC_MSG_RESULT(You have pthreads. Let's use them.)
fi
+dnl #
+dnl # 4. determine a few additional details
+dnl #
+
+if test "x$with_context" = "xucontext" ; then
+dnl # direction of stack grow
+ AC_CHECK_STACKGROWTH(PTH_STACKGROWTH)
+ if test ".$ac_cv_check_stackgrowth" = ".down"; then
+ PTH_STACK_GROWTH="down"
+ else
+ PTH_STACK_GROWTH="up"
+ fi
+ AC_SUBST(PTH_STACK_GROWTH)
+
+ AC_CHECK_STACKSETUP(makecontext, pth_skaddr_makecontext, pth_sksize_makecontext)
+fi
+
#########################################
## Check for libraries extra-dependencies
##
# examples/pastry/Makefile examples/pastry/test_sg
-# examples/gras/token/Makefile examples/gras/token/test_sg examples/gras/token/test_rl
# examples/gras/chord/Makefile examples/gras/chord/test_sg examples/gras/chord/test_rl
SG_CONFIGURE_PART(Generating files...)
include/Makefile
src/Makefile
src/amok/Makefile
+ src/ucontext_stack.h
examples/Makefile
examples/msg/Makefile examples/msg/run_msg_test
examples/gras/Makefile
examples/gras/ping/Makefile examples/gras/ping/test_sg examples/gras/ping/test_rl
examples/gras/timer/Makefile examples/gras/timer/test_sg examples/gras/timer/test_rl
examples/gras/chrono/Makefile examples/gras/chrono/test_sg examples/gras/chrono/test_rl
+ examples/gras/tokenS/Makefile examples/gras/tokenS/test_sg examples/gras/tokenS/test_rl
examples/amok/Makefile
- examples/amok/bandwidth/Makefile examples/amok/bandwidth/test_sg
+ examples/amok/bandwidth/Makefile examples/amok/bandwidth/test_sg examples/amok/bandwidth/test_rl
doc/Makefile
doc/Doxyfile
tools/graspe-slave tools/Makefile
examples/gras/ping/test_sg examples/gras/ping/test_rl \
examples/gras/timer/test_sg examples/gras/timer/test_rl \
examples/gras/chrono/test_sg examples/gras/chrono/test_rl \
- \
+ examples/gras/tokenS/test_sg examples/gras/tokenS/test_rl \
examples/msg/run_msg_test \
; do \
test -e $file && chmod +x $file; \
done
])
-# examples/gras/token/test_sg examples/gras/token/test_rl \
+
# examples/gras/chord/test_sg examples/gras/chord/test_rl \
# examples/gras/pastry/test_sg