Open source system call tests.

PiperOrigin-RevId: 224886231
Change-Id: I0fccb4d994601739d8b16b1d4e6b31f40297fb22

1 files changed, 61 insertions, 0 deletions

diff --git a/test/util/cleanup.h b/test/util/cleanup.h
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--- /dev/null
+++ b/test/util/cleanup.h
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+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef GVISOR_TEST_UTIL_CLEANUP_H_
+#define GVISOR_TEST_UTIL_CLEANUP_H_
+
+#include <functional>
+#include <utility>
+
+namespace gvisor {
+namespace testing {
+
+class Cleanup {
+ public:
+  Cleanup() : released_(true) {}
+  explicit Cleanup(std::function<void()>&& callback) : cb_(callback) {}
+
+  Cleanup(Cleanup&& other) {
+    released_ = other.released_;
+    cb_ = other.Release();
+  }
+
+  Cleanup& operator=(Cleanup&& other) {
+    released_ = other.released_;
+    cb_ = other.Release();
+    return *this;
+  }
+
+  ~Cleanup() {
+    if (!released_) {
+      cb_();
+    }
+  }
+
+  std::function<void()>&& Release() {
+    released_ = true;
+    return std::move(cb_);
+  }
+
+ private:
+  Cleanup(Cleanup const& other) = delete;
+
+  bool released_ = false;
+  std::function<void(void)> cb_;
+};
+
+}  // namespace testing
+}  // namespace gvisor
+
+#endif  // GVISOR_TEST_UTIL_CLEANUP_H_