sandbox/win/src/handle_closer_agent.h

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef SANDBOX_SRC_HANDLE_CLOSER_AGENT_H_
   6 #define SANDBOX_SRC_HANDLE_CLOSER_AGENT_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/strings/string16.h"
  10 #include "base/win/scoped_handle.h"
  11 #include "sandbox/win/src/handle_closer.h"
  12 #include "sandbox/win/src/sandbox_types.h"
  13
  14 namespace sandbox {
  15
  16 // Target process code to close the handle list copied over from the broker.
  17 class HandleCloserAgent {
  18  public:
  19   HandleCloserAgent();
  20   ~HandleCloserAgent();
  21
  22   // Reads the serialized list from the broker and creates the lookup map.
  23   void InitializeHandlesToClose();
  24
  25   // Closes any handles matching those in the lookup map.
  26   bool CloseHandles();
  27
  28   // True if we have handles waiting to be closed.
  29   static bool NeedsHandlesClosed();
  30
  31  private:
  32   // Attempt to stuff a closed handle with a dummy Event.
  33   bool AttemptToStuffHandleSlot(HANDLE closed_handle,
  34                                 const base::string16& type);
  35
  36   HandleMap handles_to_close_;
  37   base::win::ScopedHandle dummy_handle_;
  38
  39   DISALLOW_COPY_AND_ASSIGN(HandleCloserAgent);
  40 };
  41
  42 }  // namespace sandbox
  43
  44 #endif  // SANDBOX_SRC_HANDLE_CLOSER_AGENT_H_