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 #include "sandbox/win/src/target_services.h"
  14
  15
  16 namespace sandbox {
  17
  18 // Target process code to close the handle list copied over from the broker.
  19 class HandleCloserAgent {
  20  public:
  21   HandleCloserAgent();
  22   ~HandleCloserAgent();
  23
  24   // Reads the serialized list from the broker and creates the lookup map.
  25   // Updates is_csrss_connected based on type of handles closed.
  26   void InitializeHandlesToClose(bool* is_csrss_connected);
  27
  28   // Closes any handles matching those in the lookup map.
  29   bool CloseHandles();
  30
  31   // True if we have handles waiting to be closed.
  32   static bool NeedsHandlesClosed();
  33
  34  private:
  35   // Attempt to stuff a closed handle with a dummy Event.
  36   bool AttemptToStuffHandleSlot(HANDLE closed_handle,
  37                                 const base::string16& type);
  38
  39   HandleMap handles_to_close_;
  40   base::win::ScopedHandle dummy_handle_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(HandleCloserAgent);
  43 };
  44
  45 }  // namespace sandbox
  46
  47 #endif  // SANDBOX_SRC_HANDLE_CLOSER_AGENT_H_