1 files changed, 25 insertions, 0 deletions
diff --git a/tests/util.sh b/tests/util.sh
index b846d45..1718a1a 100644
--- a/tests/util.sh
+++ b/tests/util.sh
@@ -190,3 +190,28 @@ pop_defers() {
 
     return $ret
 }
+
+## Parallelism
+
+# Get the number of processors
+_nproc() {
+    {
+        nproc \
+            || sysctl -n hw.ncpu \
+            || getconf _NPROCESSORS_ONLN \
+            || echo 1
+    } 2>/dev/null
+}
+
+# Run wait, looping if interrupted
+_wait() {
+    local ret=130
+
+    # "If wait is interrupted by a signal, the return status will be greater than 128"
+    while ((ret > 128)); do
+	ret=0
+	wait "$@" || ret=$?
+    done
+
+    return $ret
+}