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 Jan 27 11:00:43 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(enter.functions()->Map(instance,
  33                                                 file_io,
  34                                                 length,
  35                                                 map_protection,
  36                                                 map_flags,
  37                                                 offset,
  38                                                 address,
  39                                                 enter.callback()));
  40 }
  41
  42 int32_t Unmap(PP_Instance instance,
  43               const void* address,
  44               int64_t length,
  45               struct PP_CompletionCallback callback) {
  46   VLOG(4) << "PPB_FileMapping::Unmap()";
  47   EnterInstanceAPI<PPB_FileMapping_API> enter(instance, callback);
  48   if (enter.failed())
  49     return enter.retval();
  50   return enter.SetResult(enter.functions()->Unmap(instance,
  51                                                   address,
  52                                                   length,
  53                                                   enter.callback()));
  54 }
  55
  56 int64_t GetMapPageSize(PP_Instance instance) {
  57   VLOG(4) << "PPB_FileMapping::GetMapPageSize()";
  58   EnterInstanceAPI<PPB_FileMapping_API> enter(instance);
  59   if (enter.failed())
  60     return 0;
  61   return enter.functions()->GetMapPageSize(instance);
  62 }
  63
  64 const PPB_FileMapping_0_1 g_ppb_filemapping_thunk_0_1 = {
  65   &Map,
  66   &Unmap,
  67   &GetMapPageSize
  68 };
  69
  70 }  // namespace
  71
  72 PPAPI_THUNK_EXPORT const PPB_FileMapping_0_1* GetPPB_FileMapping_0_1_Thunk() {
  73   return &g_ppb_filemapping_thunk_0_1;
  74 }
  75
  76 }  // namespace thunk
  77 }  // namespace ppapi