SFI NaCl: Batch-open resource files

components/nacl/loader/nacl_listener.h

 // Copyright 2013 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 CHROME_NACL_NACL_LISTENER_H_
 #define CHROME_NACL_NACL_LISTENER_H_
 
+#include <map>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "components/nacl/common/nacl_types.h"
 #include "components/nacl/loader/nacl_trusted_listener.h"
 #include "ipc/ipc_listener.h"
 
@@ skipping 36 matching lines @@
                         uint64_t token_hi,
                         ResolveFileTokenCallback cb);
   void OnFileTokenResolved(uint64_t token_lo,
                            uint64_t token_hi,
                            IPC::PlatformFileForTransit ipc_fd,
                            base::FilePath file_path);
 
  private:
   bool OnMessageReceived(const IPC::Message& msg) override;
 
+  typedef base::Callback<void(const IPC::Message&,
+                              IPC::PlatformFileForTransit,
+                              base::FilePath)> OpenResourceReplyCallback;
+
+  bool OnOpenResource(const IPC::Message& msg,
+                      const std::string& key,
+                      OpenResourceReplyCallback cb);
+
   void OnStart(const nacl::NaClStartParams& params);
 
   // A channel back to the browser.
   scoped_ptr<IPC::SyncChannel> channel_;
 
   // A filter that allows other threads to use the channel.
   scoped_refptr<IPC::SyncMessageFilter> filter_;
 
   base::WaitableEvent shutdown_event_;
   base::Thread io_thread_;
@@ skipping 12 matching lines @@
 
   scoped_ptr<base::SharedMemory> crash_info_shmem_;
 
   scoped_refptr<NaClTrustedListener> trusted_listener_;
 
   ResolveFileTokenCallback resolved_cb_;
 
   // Used to identify what thread we're on.
   base::MessageLoop* main_loop_;
 
+  std::map<
+    std::string,  // manifest key
+    std::pair<IPC::PlatformFileForTransit,
+              base::FilePath> > prefetched_resource_files_;
+
   DISALLOW_COPY_AND_ASSIGN(NaClListener);
 };
 
 #endif  // CHROME_NACL_NACL_LISTENER_H_