[NaCl SDK] nacl_io: opening a node immediately after mounting would fail.

native_client_sdk/src/libraries/nacl_io/pepper_interface.h

 /* 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 LIBRARIES_NACL_IO_PEPPER_INTERFACE_H_
 #define LIBRARIES_NACL_IO_PEPPER_INTERFACE_H_
 
 #include <ppapi/c/dev/ppb_directory_reader_dev.h>
 #include <ppapi/c/pp_completion_callback.h>
 #include <ppapi/c/pp_file_info.h>
@@ skipping 30 matching lines @@
 #include "nacl_io/pepper/undef_macros.h"
 
 int PPErrorToErrno(int32_t err);
 
 class PepperInterface {
  public:
   virtual ~PepperInterface() {}
   virtual PP_Instance GetInstance() = 0;
   virtual void AddRefResource(PP_Resource) = 0;
   virtual void ReleaseResource(PP_Resource) = 0;
+  virtual bool IsMainThread() = 0;
 
 // Interface getters.
 #include "nacl_io/pepper/define_empty_macros.h"
 #undef BEGIN_INTERFACE
 #define BEGIN_INTERFACE(BaseClass, PPInterface, InterfaceString) \
     virtual BaseClass* Get##BaseClass() = 0;
 #include "nacl_io/pepper/all_interfaces.h"
 #include "nacl_io/pepper/undef_macros.h"
 };
 
@@ skipping 31 matching lines @@
   PP_Resource Release();
 
  private:
   PepperInterface* ppapi_;
   PP_Resource resource_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedResource);
 };
 
 #endif  // LIBRARIES_NACL_IO_PEPPER_INTERFACE_H_