ppapi/thunk/ppb_file_io_thunk.cc

   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 // From ppb_file_io.idl modified Mon Nov 11 16:02:07 2013.
   6
   7 #include "ppapi/c/pp_completion_callback.h"
   8 #include "ppapi/c/pp_errors.h"
   9 #include "ppapi/c/ppb_file_io.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_io_api.h"
  14
  15 namespace ppapi {
  16 namespace thunk {
  17
  18 namespace {
  19
  20 PP_Resource Create(PP_Instance instance) {
  21   VLOG(4) << "PPB_FileIO::Create()";
  22   EnterResourceCreation enter(instance);
  23   if (enter.failed())
  24     return 0;
  25   return enter.functions()->CreateFileIO(instance);
  26 }
  27
  28 PP_Bool IsFileIO(PP_Resource resource) {
  29   VLOG(4) << "PPB_FileIO::IsFileIO()";
  30   EnterResource<PPB_FileIO_API> enter(resource, false);
  31   return PP_FromBool(enter.succeeded());
  32 }
  33
  34 int32_t Open(PP_Resource file_io,
  35              PP_Resource file_ref,
  36              int32_t open_flags,
  37              struct PP_CompletionCallback callback) {
  38   VLOG(4) << "PPB_FileIO::Open()";
  39   EnterResource<PPB_FileIO_API> enter(file_io, callback, true);
  40   if (enter.failed())
  41     return enter.retval();
  42   return enter.SetResult(
  43       enter.object()->Open(file_ref, open_flags, enter.callback()));
  44 }
  45
  46 int32_t Query(PP_Resource file_io,
  47               struct PP_FileInfo* info,
  48               struct PP_CompletionCallback callback) {
  49   VLOG(4) << "PPB_FileIO::Query()";
  50   EnterResource<PPB_FileIO_API> enter(file_io, callback, true);
  51   if (enter.failed())
  52     return enter.retval();
  53   return enter.SetResult(enter.object()->Query(info, enter.callback()));
  54 }
  55
  56 int32_t Touch(PP_Resource file_io,
  57               PP_Time last_access_time,
  58               PP_Time last_modified_time,
  59               struct PP_CompletionCallback callback) {
  60   VLOG(4) << "PPB_FileIO::Touch()";
  61   EnterResource<PPB_FileIO_API> enter(file_io, callback, true);
  62   if (enter.failed())
  63     return enter.retval();
  64   return enter.SetResult(enter.object()->Touch(
  65       last_access_time, last_modified_time, enter.callback()));
  66 }
  67
  68 int32_t Read(PP_Resource file_io,
  69              int64_t offset,
  70              char* buffer,
  71              int32_t bytes_to_read,
  72              struct PP_CompletionCallback callback) {
  73   VLOG(4) << "PPB_FileIO::Read()";
  74   EnterResource<PPB_FileIO_API> enter(file_io, callback, true);
  75   if (enter.failed())
  76     return enter.retval();
  77   return enter.SetResult(
  78       enter.object()->Read(offset, buffer, bytes_to_read, enter.callback()));
  79 }
  80
  81 int32_t Write(PP_Resource file_io,
  82               int64_t offset,
  83               const char* buffer,
  84               int32_t bytes_to_write,
  85               struct PP_CompletionCallback callback) {
  86   VLOG(4) << "PPB_FileIO::Write()";
  87   EnterResource<PPB_FileIO_API> enter(file_io, callback, true);
  88   if (enter.failed())
  89     return enter.retval();
  90   return enter.SetResult(
  91       enter.object()->Write(offset, buffer, bytes_to_write, enter.callback()));
  92 }
  93
  94 int32_t SetLength(PP_Resource file_io,
  95                   int64_t length,
  96                   struct PP_CompletionCallback callback) {
  97   VLOG(4) << "PPB_FileIO::SetLength()";
  98   EnterResource<PPB_FileIO_API> enter(file_io, callback, true);
  99   if (enter.failed())
 100     return enter.retval();
 101   return enter.SetResult(enter.object()->SetLength(length, enter.callback()));
 102 }
 103
 104 int32_t Flush(PP_Resource file_io, struct PP_CompletionCallback callback) {
 105   VLOG(4) << "PPB_FileIO::Flush()";
 106   EnterResource<PPB_FileIO_API> enter(file_io, callback, true);
 107   if (enter.failed())
 108     return enter.retval();
 109   return enter.SetResult(enter.object()->Flush(enter.callback()));
 110 }
 111
 112 void Close(PP_Resource file_io) {
 113   VLOG(4) << "PPB_FileIO::Close()";
 114   EnterResource<PPB_FileIO_API> enter(file_io, true);
 115   if (enter.failed())
 116     return;
 117   enter.object()->Close();
 118 }
 119
 120 int32_t ReadToArray(PP_Resource file_io,
 121                     int64_t offset,
 122                     int32_t max_read_length,
 123                     struct PP_ArrayOutput* output,
 124                     struct PP_CompletionCallback callback) {
 125   VLOG(4) << "PPB_FileIO::ReadToArray()";
 126   EnterResource<PPB_FileIO_API> enter(file_io, callback, true);
 127   if (enter.failed())
 128     return enter.retval();
 129   return enter.SetResult(enter.object()->ReadToArray(offset, max_read_length,
 130                                                      output, enter.callback()));
 131 }
 132
 133 const PPB_FileIO_1_0 g_ppb_fileio_thunk_1_0 = {&Create,
 134                                                &IsFileIO,
 135                                                &Open,
 136                                                &Query,
 137                                                &Touch,
 138                                                &Read,
 139                                                &Write,
 140                                                &SetLength,
 141                                                &Flush,
 142                                                &Close};
 143
 144 const PPB_FileIO_1_1 g_ppb_fileio_thunk_1_1 = {&Create,
 145                                                &IsFileIO,
 146                                                &Open,
 147                                                &Query,
 148                                                &Touch,
 149                                                &Read,
 150                                                &Write,
 151                                                &SetLength,
 152                                                &Flush,
 153                                                &Close,
 154                                                &ReadToArray};
 155
 156 }  // namespace
 157
 158 PPAPI_THUNK_EXPORT const PPB_FileIO_1_0* GetPPB_FileIO_1_0_Thunk() {
 159   return &g_ppb_fileio_thunk_1_0;
 160 }
 161
 162 PPAPI_THUNK_EXPORT const PPB_FileIO_1_1* GetPPB_FileIO_1_1_Thunk() {
 163   return &g_ppb_fileio_thunk_1_1;
 164 }
 165
 166 }  // namespace thunk
 167 }  // namespace ppapi