ppapi/thunk/ppb_file_io_api.h

   1 // Copyright (c) 2012 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 PPAPI_THUNK_PPB_FILE_IO_API_H_
   6 #define PPAPI_THUNK_PPB_FILE_IO_API_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "ppapi/c/ppb_file_io.h"
  10 #include "ppapi/c/private/pp_file_handle.h"
  11 #include "ppapi/thunk/ppapi_thunk_export.h"
  12
  13 namespace ppapi {
  14
  15 class TrackedCallback;
  16
  17 namespace thunk {
  18
  19 class PPAPI_THUNK_EXPORT PPB_FileIO_API {
  20  public:
  21   virtual ~PPB_FileIO_API() {}
  22
  23   virtual int32_t Open(PP_Resource file_ref,
  24                        int32_t open_flags,
  25                        scoped_refptr<TrackedCallback> callback) = 0;
  26   virtual int32_t Query(PP_FileInfo* info,
  27                         scoped_refptr<TrackedCallback> callback) = 0;
  28   virtual int32_t Touch(PP_Time last_access_time,
  29                         PP_Time last_modified_time,
  30                         scoped_refptr<TrackedCallback> callback) = 0;
  31   virtual int32_t Read(int64_t offset,
  32                        char* buffer,
  33                        int32_t bytes_to_read,
  34                        scoped_refptr<TrackedCallback> callback) = 0;
  35   virtual int32_t ReadToArray(int64_t offset,
  36                               int32_t max_read_length,
  37                               PP_ArrayOutput* buffer,
  38                               scoped_refptr<TrackedCallback> callback) = 0;
  39   virtual int32_t Write(int64_t offset,
  40                         const char* buffer,
  41                         int32_t bytes_to_write,
  42                         scoped_refptr<TrackedCallback> callback) = 0;
  43   virtual int32_t SetLength(int64_t length,
  44                             scoped_refptr<TrackedCallback> callback) = 0;
  45   virtual int32_t Flush(scoped_refptr<TrackedCallback> callback) = 0;
  46   virtual void Close() = 0;
  47
  48   // Trusted API.
  49   virtual int32_t GetOSFileDescriptor() = 0;
  50   virtual int32_t WillWrite(int64_t offset,
  51                             int32_t bytes_to_write,
  52                             scoped_refptr<TrackedCallback> callback) = 0;
  53   virtual int32_t WillSetLength(int64_t length,
  54                                 scoped_refptr<TrackedCallback> callback) = 0;
  55
  56   // Private API.
  57   virtual int32_t RequestOSFileHandle(
  58       PP_FileHandle* handle,
  59       scoped_refptr<TrackedCallback> callback) = 0;
  60 };
  61
  62 }  // namespace thunk
  63 }  // namespace ppapi
  64
  65 #endif  // PPAPI_THUNK_PPB_FILE_IO_API_H_