1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/threading/CpuCount.h b/js/src/threading/CpuCount.h
new file mode 100644
index 0000000000..dac6c46ea8
--- /dev/null
+++ b/js/src/threading/CpuCount.h
@@ -0,0 +1,16 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <inttypes.h>
+
+namespace js {
+
+/*
+ * Return the number of cores on the system.  If the system provides logical
+ * cores (such as hyperthreads) then count each logical core as an actual core.
+ */
+uint32_t GetCPUCount();
+
+}  // namespace js