[NaCl SDK] Add initial support for google drive to nacl_io

native_client_sdk/src/libraries/nacl_io/googledrivefs/googledrivefs_node.cc

+// Copyright 2016 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 "nacl_io/googledrivefs/googledrivefs_node.h"
+
+#include <sys/stat.h>
+
+#include "nacl_io/googledrivefs/googledrivefs.h"
+#include "nacl_io/kernel_handle.h"
+#include "nacl_io/node.h"
+#include "nacl_io/osdirent.h"
+
+namespace nacl_io {
+
+GoogleDriveFsNode::GoogleDriveFsNode(GoogleDriveFs* googledrivefs)
+    : Node(googledrivefs) {}
+
+Error GoogleDriveFsNode::GetDents(size_t offs,
+                                  struct dirent* pdir,
+                                  size_t size,
+                                  int* out_bytes) {
+  // TODO: support getdents
+  LOG_ERROR("getdents not supported.");
+  return EPERM;
+}
+
+Error GoogleDriveFsNode::GetStat(struct stat* pstat) {
+  // TODO: support getstat
+  LOG_ERROR("getstat not supported.");
+  return EPERM;
+}
+
+Error GoogleDriveFsNode::Write(const HandleAttr& attr,
+                               const void* buf,
+                               size_t count,
+                               int* out_bytes) {
+  // TODO: support write
+  LOG_ERROR("write not supported.");
+  return EPERM;
+}
+
+Error GoogleDriveFsNode::FTruncate(off_t length) {
+  // TODO: support ftruncate
+  LOG_ERROR("ftruncate not supported.");
+  return EPERM;
+}
+
+Error GoogleDriveFsNode::Read(const HandleAttr& attr,
+                              void* buf,
+                              size_t count,
+                              int* out_bytes) {
+  // TODO: support read
+  LOG_ERROR("read not supported.");
+  return EPERM;
+}
+
+Error GoogleDriveFsNode::GetSize(off_t* out_size) {
+  // TODO: support getsize
+  LOG_ERROR("getsize not supported.");
+  return EPERM;
+}
+
+Error GoogleDriveFsNode::Init(int open_flags) {
+  // TODO: support init
+  LOG_ERROR("init not supported.");
+  return EPERM;
+}
+
+}  // namespace nacl_io