Move //mojo/services/X/public/... to //mojo/services/X/... (part 1).

mojo/services/files/public/c/lib/singletons.cc

-// Copyright 2015 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 "files/public/c/lib/singletons.h"
-
-#include <errno.h>
-
-#include "files/public/c/lib/directory_wrapper.h"
-#include "files/public/c/lib/fd_table.h"
-#include "files/public/c/lib/real_errno_impl.h"
-#include "files/public/c/mojio_config.h"
-#include "mojo/public/cpp/environment/logging.h"
-
-namespace mojio {
-namespace singletons {
-
-namespace {
-
-RealErrnoImpl* g_errno_impl = nullptr;
-FDTable* g_fd_table = nullptr;
-DirectoryWrapper* g_current_working_directory = nullptr;
-
-}  // namespace
-
-ErrnoImpl* GetErrnoImpl() {
-  if (!g_errno_impl)
-    g_errno_impl = new RealErrnoImpl();  // Does NOT modify errno.
-  return g_errno_impl;
-}
-
-void ResetErrnoImpl() {
-  delete g_errno_impl;  // Does NOT modify errno.
-  g_errno_impl = nullptr;
-}
-
-FDTable* GetFDTable() {
-  ErrnoImpl::Setter errno_setter(GetErrnoImpl());  // Protect errno.
-  if (!g_fd_table)
-    g_fd_table = new FDTable(GetErrnoImpl(), MOJIO_CONFIG_MAX_NUM_FDS);
-  return g_fd_table;
-}
-
-void ResetFDTable() {
-  ErrnoImpl::Setter errno_setter(GetErrnoImpl());  // Protect errno.
-  delete g_fd_table;
-  g_fd_table = nullptr;
-}
-
-void SetCurrentWorkingDirectory(mojo::files::DirectoryPtr directory) {
-  delete g_current_working_directory;
-  g_current_working_directory =
-      new DirectoryWrapper(GetErrnoImpl(), directory.Pass());
-}
-
-DirectoryWrapper* GetCurrentWorkingDirectory() {
-  ErrnoImpl::Setter errno_setter(GetErrnoImpl());
-  if (!g_current_working_directory) {
-    // TODO(vtl): Ponder this error code. (This is, e.g.,  what openat() would
-    // return if its dirfd were not valid.)
-    errno_setter.Set(EBADF);
-    MOJO_LOG(ERROR) << "No current working directory";
-    return nullptr;
-  }
-
-  return g_current_working_directory;
-}
-
-void ResetCurrentWorkingDirectory() {
-  ErrnoImpl::Setter errno_setter(GetErrnoImpl());  // Protect errno.
-  delete g_current_working_directory;
-  g_current_working_directory = nullptr;
-}
-
-}  // namespace singletons
-}  // namespace mojio