1 files changed, 75 insertions, 0 deletions
diff --git a/security/sandbox/chromium/base/win/scoped_process_information.h b/security/sandbox/chromium/base/win/scoped_process_information.h
new file mode 100644
index 0000000000..3b85d1bfab
--- /dev/null
+++ b/security/sandbox/chromium/base/win/scoped_process_information.h
@@ -0,0 +1,75 @@
+// Copyright (c) 2012 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 BASE_WIN_SCOPED_PROCESS_INFORMATION_H_
+#define BASE_WIN_SCOPED_PROCESS_INFORMATION_H_
+
+#include <windows.h>
+
+#include "base/base_export.h"
+#include "base/macros.h"
+#include "base/win/scoped_handle.h"
+
+namespace base {
+namespace win {
+
+// Manages the closing of process and thread handles from PROCESS_INFORMATION
+// structures. Allows clients to take ownership of either handle independently.
+class BASE_EXPORT ScopedProcessInformation {
+ public:
+  ScopedProcessInformation();
+  explicit ScopedProcessInformation(const PROCESS_INFORMATION& process_info);
+  ~ScopedProcessInformation();
+
+  // Returns true iff this instance is holding a thread and/or process handle.
+  bool IsValid() const;
+
+  // Closes the held thread and process handles, if any.
+  void Close();
+
+  // Populates this instance with the provided |process_info|.
+  void Set(const PROCESS_INFORMATION& process_info);
+
+  // Populates this instance with duplicate handles and the thread/process IDs
+  // from |other|. Returns false in case of failure, in which case this instance
+  // will be completely unpopulated.
+  bool DuplicateFrom(const ScopedProcessInformation& other);
+
+  // Transfers ownership of the held PROCESS_INFORMATION, if any, away from this
+  // instance.
+  PROCESS_INFORMATION Take();
+
+  // Transfers ownership of the held process handle, if any, away from this
+  // instance. Note that the related process_id will also be cleared.
+  HANDLE TakeProcessHandle();
+
+  // Transfers ownership of the held thread handle, if any, away from this
+  // instance. Note that the related thread_id will also be cleared.
+  HANDLE TakeThreadHandle();
+
+  // Returns the held process handle, if any, while retaining ownership.
+  HANDLE process_handle() const { return process_handle_.Get(); }
+
+  // Returns the held thread handle, if any, while retaining ownership.
+  HANDLE thread_handle() const { return thread_handle_.Get(); }
+
+  // Returns the held process id, if any.
+  DWORD process_id() const { return process_id_; }
+
+  // Returns the held thread id, if any.
+  DWORD thread_id() const { return thread_id_; }
+
+ private:
+  ScopedHandle process_handle_;
+  ScopedHandle thread_handle_;
+  DWORD process_id_ = 0;
+  DWORD thread_id_ = 0;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedProcessInformation);
+};
+
+}  // namespace win
+}  // namespace base
+
+#endif  // BASE_WIN_SCOPED_PROCESS_INFORMATION_H_