ppapi/thunk/ppb_directory_reader_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 #include "ppapi/c/dev/ppb_directory_reader_dev.h"
   6 #include "ppapi/c/pp_completion_callback.h"
   7 #include "ppapi/c/pp_errors.h"
   8 #include "ppapi/shared_impl/proxy_lock.h"
   9 #include "ppapi/shared_impl/tracked_callback.h"
  10 #include "ppapi/thunk/enter.h"
  11 #include "ppapi/thunk/thunk.h"
  12 #include "ppapi/thunk/ppb_directory_reader_api.h"
  13 #include "ppapi/thunk/resource_creation_api.h"
  14
  15 namespace ppapi {
  16 namespace thunk {
  17
  18 namespace {
  19
  20 PP_Resource Create(PP_Resource directory_ref) {
  21   ppapi::ProxyAutoLock lock;
  22   Resource* object =
  23       PpapiGlobals::Get()->GetResourceTracker()->GetResource(directory_ref);
  24   if (!object)
  25     return 0;
  26   EnterResourceCreationNoLock enter(object->pp_instance());
  27   if (enter.failed())
  28     return 0;
  29   return enter.functions()->CreateDirectoryReader(
  30       object->pp_instance(), directory_ref);
  31 }
  32
  33 PP_Bool IsDirectoryReader(PP_Resource resource) {
  34   EnterResource<PPB_DirectoryReader_API> enter(resource, false);
  35   return PP_FromBool(enter.succeeded());
  36 }
  37
  38 int32_t ReadEntries(PP_Resource directory_reader,
  39                     PP_ArrayOutput output,
  40                     PP_CompletionCallback callback) {
  41   EnterResource<PPB_DirectoryReader_API> enter(
  42       directory_reader, callback, true);
  43   if (enter.failed())
  44     return enter.retval();
  45   return enter.SetResult(enter.object()->ReadEntries(output, enter.callback()));
  46 }
  47
  48 const PPB_DirectoryReader_Dev g_ppb_directory_reader_thunk = {
  49   &Create,
  50   &IsDirectoryReader,
  51   &ReadEntries
  52 };
  53
  54 }  // namespace
  55
  56 const PPB_DirectoryReader_Dev_0_6* GetPPB_DirectoryReader_Dev_0_6_Thunk() {
  57   return &g_ppb_directory_reader_thunk;
  58 }
  59
  60 }  // namespace thunk
  61 }  // namespace ppapi