1 files changed, 36 insertions, 0 deletions
diff --git a/lib/libtsan/tsan_ignoreset.h b/lib/libtsan/tsan_ignoreset.h
new file mode 100644
index 0000000000..4e2511291c
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+++ b/lib/libtsan/tsan_ignoreset.h
@@ -0,0 +1,36 @@
+//===-- tsan_ignoreset.h ----------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of ThreadSanitizer (TSan), a race detector.
+//
+// IgnoreSet holds a set of stack traces where ignores were enabled.
+//===----------------------------------------------------------------------===//
+#ifndef TSAN_IGNORESET_H
+#define TSAN_IGNORESET_H
+
+#include "tsan_defs.h"
+
+namespace __tsan {
+
+class IgnoreSet {
+ public:
+  IgnoreSet();
+  void Add(StackID stack_id);
+  void Reset() { size_ = 0; }
+  uptr Size() const { return size_; }
+  StackID At(uptr i) const;
+
+ private:
+  static constexpr uptr kMaxSize = 16;
+  uptr size_;
+  StackID stacks_[kMaxSize];
+};
+
+}  // namespace __tsan
+
+#endif  // TSAN_IGNORESET_H