ppb_file_io_thunk.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/c/pp_completion_callback.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/c/pp_errors.h" 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/tracked_callback.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/thunk/enter.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/thunk/thunk.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/thunk/ppb_file_io_api.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/thunk/resource_creation_api.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ppapi { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace thunk { 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef EnterResource<PPB_FileIO_API> EnterFileIO; 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Resource Create(PP_Instance instance) { 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EnterResourceCreation enter(instance); 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enter.failed()) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.functions()->CreateFileIO(instance); 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Bool IsFileIO(PP_Resource resource) { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EnterFileIO enter(resource, false); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PP_FromBool(enter.succeeded()); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32_t Open(PP_Resource file_io, 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_Resource file_ref, 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int32_t open_flags, 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_CompletionCallback callback) { 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EnterFileIO enter(file_io, callback, true); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enter.failed()) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.retval(); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.SetResult(enter.object()->Open(file_ref, open_flags, 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enter.callback())); 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32_t Query(PP_Resource file_io, 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_FileInfo* info, 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_CompletionCallback callback) { 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EnterFileIO enter(file_io, callback, true); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enter.failed()) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.retval(); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.SetResult(enter.object()->Query(info, enter.callback())); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32_t Touch(PP_Resource file_io, 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_Time last_access_time, 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_Time last_modified_time, 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_CompletionCallback callback) { 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EnterFileIO enter(file_io, callback, true); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enter.failed()) 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.retval(); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.SetResult(enter.object()->Touch( 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) last_access_time, last_modified_time, enter.callback())); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32_t Read(PP_Resource file_io, 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64_t offset, 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* buffer, 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int32_t bytes_to_read, 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_CompletionCallback callback) { 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EnterFileIO enter(file_io, callback, true); 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enter.failed()) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.retval(); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.SetResult(enter.object()->Read(offset, buffer, bytes_to_read, 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enter.callback())); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32_t Write(PP_Resource file_io, 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64_t offset, 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* buffer, 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int32_t bytes_to_write, 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_CompletionCallback callback) { 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EnterFileIO enter(file_io, callback, true); 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enter.failed()) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.retval(); 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.SetResult(enter.object()->Write(offset, buffer, bytes_to_write, 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enter.callback())); 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32_t SetLength(PP_Resource file_io, 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64_t length, 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_CompletionCallback callback) { 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EnterFileIO enter(file_io, callback, true); 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enter.failed()) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.retval(); 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.SetResult(enter.object()->SetLength(length, enter.callback())); 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32_t Flush(PP_Resource file_io, 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_CompletionCallback callback) { 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EnterFileIO enter(file_io, callback, true); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enter.failed()) 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.retval(); 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return enter.SetResult(enter.object()->Flush(enter.callback())); 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Close(PP_Resource file_io) { 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EnterFileIO enter(file_io, true); 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enter.succeeded()) 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enter.object()->Close(); 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const PPB_FileIO g_ppb_file_io_thunk = { 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &Create, 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &IsFileIO, 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &Open, 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &Query, 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &Touch, 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &Read, 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &Write, 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &SetLength, 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &Flush, 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &Close 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const PPB_FileIO_1_0* GetPPB_FileIO_1_0_Thunk() { 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return &g_ppb_file_io_thunk; 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace thunk 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ppapi 131