Index: third_party/WebKit/Source/wtf/StackUtil.h |
diff --git a/third_party/WebKit/Source/wtf/StackUtil.h b/third_party/WebKit/Source/wtf/StackUtil.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..e4193d4d77ba1939605a6da0c500148f8123463a |
--- /dev/null |
+++ b/third_party/WebKit/Source/wtf/StackUtil.h |
@@ -0,0 +1,35 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef StackUtil_h |
+#define StackUtil_h |
+ |
+#include "wtf/Compiler.h" |
+#include "wtf/WTFExport.h" |
+#include "wtf/build_config.h" |
+#include <stddef.h> |
+ |
+namespace WTF { |
+ |
+WTF_EXPORT size_t getUnderestimatedStackSize(); |
+WTF_EXPORT void* getStackStart(); |
+ |
+namespace internal { |
+ |
+// Returns true if the function is not called on the main thread. Note carefully |
+// that this function may have false positives, i.e. it can return true even if |
+// we are on the main thread. If the function returns false, we are certainly |
+// not on the main thread. Must be WTF_EXPORT due to template inlining in |
+// ThreadSpecific. |
+WTF_EXPORT bool mayNotBeMainThread(); |
+ |
+#if OS(WIN) && COMPILER(MSVC) |
+size_t threadStackSize(); |
+#endif |
+ |
+} // namespace internal |
+ |
+} // namespace WTF |
+ |
+#endif // StackUtil_h |