text: // 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 PPAPI_THUNK_PPB_FILE_IO_API_H_
  #define PPAPI_THUNK_PPB_FILE_IO_API_H_
  
  #include "base/memory/ref_counted.h"
  #include "ppapi/c/ppb_file_io.h"
  #include "ppapi/c/private/pp_file_handle.h"
  #include "ppapi/thunk/ppapi_thunk_export.h"
  
  namespace ppapi {
  
  class TrackedCallback;
  
  namespace thunk {
  
  class PPAPI_THUNK_EXPORT PPB_FileIO_API {
   public:
    virtual ~PPB_FileIO_API() {}
  
    virtual int32_t Open(PP_Resource file_ref,
                         int32_t open_flags,
                         scoped_refptr<TrackedCallback> callback) = 0;
    virtual int32_t Query(PP_FileInfo* info,
                          scoped_refptr<TrackedCallback> callback) = 0;
    virtual int32_t Touch(PP_Time last_access_time,
                          PP_Time last_modified_time,
                          scoped_refptr<TrackedCallback> callback) = 0;
    virtual int32_t Read(int64_t offset,
                         char* buffer,
                         int32_t bytes_to_read,
                         scoped_refptr<TrackedCallback> callback) = 0;
    virtual int32_t ReadToArray(int64_t offset,
                                int32_t max_read_length,
                                PP_ArrayOutput* buffer,
                                scoped_refptr<TrackedCallback> callback) = 0;
    virtual int32_t Write(int64_t offset,
                          const char* buffer,
                          int32_t bytes_to_write,
                          scoped_refptr<TrackedCallback> callback) = 0;
    virtual int32_t SetLength(int64_t length,
                              scoped_refptr<TrackedCallback> callback) = 0;
    virtual int32_t Flush(scoped_refptr<TrackedCallback> callback) = 0;
    virtual void Close() = 0;
  
    // Private API.
    virtual int32_t RequestOSFileHandle(
        PP_FileHandle* handle,
        scoped_refptr<TrackedCallback> callback) = 0;
  };
  
  }  // namespace thunk
  }  // namespace ppapi
  
  #endif  // PPAPI_THUNK_PPB_FILE_IO_API_H_
  