Convert more interfaces to the new thunk system.

ppapi/thunk/ppb_file_io_thunk.cc

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ppapi/c/dev/ppb_file_io_dev.h"
+#include "ppapi/c/pp_completion_callback.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/thunk/thunk.h"
+#include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppb_file_io_api.h"
+#include "ppapi/thunk/resource_creation_api.h"
+
+namespace ppapi {
+namespace thunk {
+
+namespace {
+
+PP_Resource Create(PP_Instance instance) {
+  EnterFunction<ResourceCreationAPI> enter(instance, true);
+  if (enter.failed())
+    return 0;
+  return enter.functions()->CreateFileIO(instance);
+}
+
+PP_Bool IsFileIO(PP_Resource resource) {
+  EnterResource<PPB_FileIO_API> enter(resource, false);
+  return PP_FromBool(enter.succeeded());
+}
+
+int32_t Open(PP_Resource file_io,
+             PP_Resource file_ref,
+             int32_t open_flags,
+             PP_CompletionCallback callback) {
+  EnterResource<PPB_FileIO_API> enter(file_io, true);
+  if (enter.failed())
+    return PP_ERROR_BADRESOURCE;
+  return enter.object()->Open(file_ref, open_flags, callback);
+}
+
+int32_t Query(PP_Resource file_io,
+              PP_FileInfo_Dev* info,
+              PP_CompletionCallback callback) {
+  EnterResource<PPB_FileIO_API> enter(file_io, true);
+  if (enter.failed())
+    return PP_ERROR_BADRESOURCE;
+  return enter.object()->Query(info, callback);
+}
+
+int32_t Touch(PP_Resource file_io,
+              PP_Time last_access_time,
+              PP_Time last_modified_time,
+              PP_CompletionCallback callback) {
+  EnterResource<PPB_FileIO_API> enter(file_io, true);
+  if (enter.failed())
+    return PP_ERROR_BADRESOURCE;
+  return enter.object()->Touch(last_access_time, last_modified_time, callback);
+}
+
+int32_t Read(PP_Resource file_io,
+             int64_t offset,
+             char* buffer,
+             int32_t bytes_to_read,
+             PP_CompletionCallback callback) {
+  EnterResource<PPB_FileIO_API> enter(file_io, true);
+  if (enter.failed())
+    return PP_ERROR_BADRESOURCE;
+  return enter.object()->Read(offset, buffer, bytes_to_read, callback);
+}
+
+int32_t Write(PP_Resource file_io,
+              int64_t offset,
+              const char* buffer,
+              int32_t bytes_to_write,
+              PP_CompletionCallback callback) {
+  EnterResource<PPB_FileIO_API> enter(file_io, true);
+  if (enter.failed())
+    return PP_ERROR_BADRESOURCE;
+  return enter.object()->Write(offset, buffer, bytes_to_write, callback);
+}
+
+int32_t SetLength(PP_Resource file_io,
+                  int64_t length,
+                  PP_CompletionCallback callback) {
+  EnterResource<PPB_FileIO_API> enter(file_io, true);
+  if (enter.failed())
+    return PP_ERROR_BADRESOURCE;
+  return enter.object()->SetLength(length, callback);
+}
+
+int32_t Flush(PP_Resource file_io,
+              PP_CompletionCallback callback) {
+  EnterResource<PPB_FileIO_API> enter(file_io, true);
+  if (enter.failed())
+    return PP_ERROR_BADRESOURCE;
+  return enter.object()->Flush(callback);
+}
+
+void Close(PP_Resource file_io) {
+  EnterResource<PPB_FileIO_API> enter(file_io, true);
+  if (enter.succeeded())
+    enter.object()->Close();
+}
+
+const PPB_FileIO_Dev g_ppb_file_io_thunk = {
+  &Create,
+  &IsFileIO,
+  &Open,
+  &Query,
+  &Touch,
+  &Read,
+  &Write,
+  &SetLength,
+  &Flush,
+  &Close
+};
+
+}  // namespace
+
+const PPB_FileIO_Dev* GetPPB_FileIO_Thunk() {
+  return &g_ppb_file_io_thunk;
+}
+
+}  // namespace thunk
+}  // namespace ppapi