obsolete: SFI NaCl: Batch-open resource files

components/nacl/loader/nacl_ipc_adapter.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_IPC_ADAPTER_H_
 #define CHROME_NACL_NACL_IPC_ADAPTER_H_
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 113 matching lines @@
       ResolveFileTokenCallback;
 
   // Sets a callback to be invoked for resolving file tokens received from the
   // renderer. When the file token is resolved, the
   // ResolveFileTokenReplyCallback passed inside the ResolveFileTokenCallback
   // will be invoked.
   void set_resolve_file_token_callback(ResolveFileTokenCallback cb) {
     resolve_file_token_cb_ = cb;
   }
 
+  typedef base::Callback<void(const IPC::Message&,
+                              IPC::PlatformFileForTransit,
+                              base::FilePath)> OpenResourceReplyCallback;
+
+  typedef base::Callback<bool(const IPC::Message&,
+                              const std::string&,  // key
+                              OpenResourceReplyCallback)> OpenResourceCallback;
+
+  // Sets a callback to be invoked for intercepting open_resource IRT calls.
+  // The callback may immediately call a OpenResourceReplyCallback function to
+  // send a pre-opened resrouce descriptor to the untrusted side.
+  // OpenResourceCallback returns true when OpenResourceReplyCallback is called.
+  void set_open_resource_callback(OpenResourceCallback cb) {
+    open_resource_cb_ = cb;
+  }
+
  private:
   friend class base::RefCountedThreadSafe<NaClIPCAdapter>;
 
   class RewrittenMessage;
 
   // This is the data that must only be accessed inside the lock. This struct
   // just separates it so it's easier to see.
   struct LockedData {
     LockedData();
     ~LockedData();
@@ skipping 29 matching lines @@
     // for scanning.
     typedef std::map<int, uint32> PendingSyncMsgMap;
     PendingSyncMsgMap pending_sync_msgs_;
   };
 
   ~NaClIPCAdapter() override;
 
   void OnFileTokenResolved(const IPC::Message& orig_msg,
                            IPC::PlatformFileForTransit ipc_fd,
                            base::FilePath file_path);
+  void OnFileTokenResolvedLocked(const IPC::Message& orig_msg,
+                                 IPC::PlatformFileForTransit ipc_fd,
+                                 base::FilePath file_path);
 
   bool RewriteMessage(const IPC::Message& msg, uint32_t type);
 
   // Returns 0 if nothing is waiting.
   int LockedReceive(NaClImcTypedMsgHdr* msg);
 
   // Sends a message that we know has been completed to the Chrome process.
   bool SendCompleteMessage(const char* buffer, size_t buffer_len);
 
   // Clears the LockedData.to_be_sent_ structure in a way to make sure that
   // the memory is deleted. std::string can sometimes hold onto the buffer
   // for future use which we don't want.
   void ClearToBeSent();
 
   void ConnectChannelOnIOThread();
   void CloseChannelOnIOThread();
   void SendMessageOnIOThread(scoped_ptr<IPC::Message> message);
 
   // Saves the message to forward to NaCl. This method assumes that the caller
   // holds the lock for locked_data_.
   void SaveMessage(const IPC::Message& message,
                    RewrittenMessage* rewritten_message);
 
   base::Lock lock_;
   base::ConditionVariable cond_var_;
 
   scoped_refptr<base::TaskRunner> task_runner_;
 
   ResolveFileTokenCallback resolve_file_token_cb_;
+  OpenResourceCallback open_resource_cb_;
 
   // To be accessed inside of lock_ only.
   LockedData locked_data_;
 
   // To be accessed on the I/O thread (via task runner) only.
   IOThreadData io_thread_data_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClIPCAdapter);
 };
 
 // Export TranslatePepperFileReadWriteOpenFlags for testing.
 int TranslatePepperFileReadWriteOpenFlagsForTesting(int32_t pp_open_flags);
 
 #endif  // CHROME_NACL_NACL_IPC_ADAPTER_H_