configure: add test case for pthread_getaffinity_np()

Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/configure b/configure
index 2f5ac91fb45387b6f6139b2582c266996eca7214..a7d82be06b3c886550a77c34636c539895bc6b16 100755 (executable)
--- a/configure
+++ b/configure
@@ -418,6 +418,7 @@ CYGWIN*)
   clock_monotonic="yes"
   sched_idle="yes"
   pthread_condattr_setclock="no"
+  pthread_affinity="no"
   ;;
 esac
 
@@ -803,6 +804,29 @@ elif compile_prog "" "$LIBS -lpthread" "pthread_sigmask" ; then
 fi
 print_config "pthread_sigmask()" "$pthread_sigmask"
 
+##########################################
+# pthread_getaffinity_np() probe
+if test "$pthread_getaffinity" != "yes" ; then
+  pthread_getaffinity="no"
+fi
+cat > $TMPC <<EOF
+#include <stddef.h> /* NULL */
+#include <signal.h> /* pthread_sigmask() */
+#include <pthread.h>
+int main(void)
+{
+  cpu_set_t set;
+  return pthread_getaffinity_np(pthread_self(), sizeof(set), &set);
+}
+EOF
+if compile_prog "" "$LIBS" "pthread_getaffinity" ; then
+  pthread_getaffinity="yes"
+elif compile_prog "" "$LIBS -lpthread" "pthread_getaffinity" ; then
+  pthread_getaffinity="yes"
+  LIBS="$LIBS -lpthread"
+fi
+print_config "pthread_getaffinity_np()" "$pthread_getaffinity"
+
 ##########################################
 # solaris aio probe
 if test "$solaris_aio" != "yes" ; then
@@ -2823,6 +2847,9 @@ fi
 if test "$pthread_sigmask" = "yes" ; then
   output_sym "CONFIG_PTHREAD_SIGMASK"
 fi
+if test "$pthread_getaffinity" = "yes" ; then
+  output_sym "CONFIG_PTHREAD_GETAFFINITY"
+fi
 if test "$have_asprintf" = "yes" ; then
     output_sym "CONFIG_HAVE_ASPRINTF"
 fi