src/ppapi/thunk/ppb_file_mapping_thunk.cc

   1 // Copyright 2014 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 // From ppb_file_mapping.idl modified Mon Apr  7 08:55:47 2014.
   6
   7 #include "ppapi/c/pp_completion_callback.h"
   8 #include "ppapi/c/pp_errors.h"
   9 #include "ppapi/c/ppb_file_mapping.h"
  10 #include "ppapi/shared_impl/tracked_callback.h"
  11 #include "ppapi/thunk/enter.h"
  12 #include "ppapi/thunk/ppapi_thunk_export.h"
  13 #include "ppapi/thunk/ppb_file_mapping_api.h"
  14
  15 namespace ppapi {
  16 namespace thunk {
  17
  18 namespace {
  19
  20 int32_t Map(PP_Instance instance,
  21             PP_Resource file_io,
  22             int64_t length,
  23             uint32_t map_protection,
  24             uint32_t map_flags,
  25             int64_t offset,
  26             void** address,
  27             struct PP_CompletionCallback callback) {
  28   VLOG(4) << "PPB_FileMapping::Map()";
  29   EnterInstanceAPI<PPB_FileMapping_API> enter(instance, callback);
  30   if (enter.failed())
  31     return enter.retval();
  32   return enter.SetResult(
  33       enter.functions()->Map(instance, file_io, length, map_protection,
  34                              map_flags, offset, address, enter.callback()));
  35 }
  36
  37 int32_t Unmap(PP_Instance instance,
  38               const void* address,
  39               int64_t length,
  40               struct PP_CompletionCallback callback) {
  41   VLOG(4) << "PPB_FileMapping::Unmap()";
  42   EnterInstanceAPI<PPB_FileMapping_API> enter(instance, callback);
  43   if (enter.failed())
  44     return enter.retval();
  45   return enter.SetResult(
  46       enter.functions()->Unmap(instance, address, length, enter.callback()));
  47 }
  48
  49 int64_t GetMapPageSize(PP_Instance instance) {
  50   VLOG(4) << "PPB_FileMapping::GetMapPageSize()";
  51   EnterInstanceAPI<PPB_FileMapping_API> enter(instance);
  52   if (enter.failed())
  53     return 0;
  54   return enter.functions()->GetMapPageSize(instance);
  55 }
  56
  57 const PPB_FileMapping_0_1 g_ppb_filemapping_thunk_0_1 = {&Map,
  58                                                          &Unmap,
  59                                                          &GetMapPageSize};
  60
  61 }  // namespace
  62
  63 PPAPI_THUNK_EXPORT const PPB_FileMapping_0_1* GetPPB_FileMapping_0_1_Thunk() {
  64   return &g_ppb_filemapping_thunk_0_1;
  65 }
  66
  67 }  // namespace thunk
  68 }  // namespace ppapi