mandoline filesystem: Rewrite using base::File.

components/filesystem/shared_impl.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 "components/filesystem/shared_impl.h"
-
-#include <errno.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <time.h>
-#include <unistd.h>
-
-#include "base/logging.h"
-#include "components/filesystem/futimens.h"
-#include "components/filesystem/util.h"
-
-namespace filesystem {
-
-void StatFD(int fd, FileType type, const StatFDCallback& callback) {
-  DCHECK_NE(fd, -1);
-
-  struct stat buf;
-  if (fstat(fd, &buf) != 0) {
-    callback.Run(ErrnoToError(errno), nullptr);
-    return;
-  }
-
-  FileInformationPtr file_info(FileInformation::New());
-  file_info->type = type;
-  // Only fill in |size| for files.
-  if (S_ISREG(buf.st_mode)) {
-    file_info->size = static_cast<int64_t>(buf.st_size);
-  } else {
-    LOG_IF(WARNING, !S_ISDIR(buf.st_mode))
-        << "Unexpected fstat() of special file";
-    file_info->size = 0;
-  }
-  file_info->atime = Timespec::New();
-  file_info->mtime = Timespec::New();
-#if defined(OS_ANDROID)
-  file_info->atime->seconds = static_cast<int64_t>(buf.st_atime);
-  file_info->atime->nanoseconds = static_cast<int32_t>(buf.st_atime_nsec);
-  file_info->mtime->seconds = static_cast<int64_t>(buf.st_mtime);
-  file_info->mtime->nanoseconds = static_cast<int32_t>(buf.st_mtime_nsec);
-#else
-  file_info->atime->seconds = static_cast<int64_t>(buf.st_atim.tv_sec);
-  file_info->atime->nanoseconds = static_cast<int32_t>(buf.st_atim.tv_nsec);
-  file_info->mtime->seconds = static_cast<int64_t>(buf.st_mtim.tv_sec);
-  file_info->mtime->nanoseconds = static_cast<int32_t>(buf.st_mtim.tv_nsec);
-#endif
-
-  callback.Run(ERROR_OK, file_info.Pass());
-}
-
-void TouchFD(int fd,
-             TimespecOrNowPtr atime,
-             TimespecOrNowPtr mtime,
-             const TouchFDCallback& callback) {
-  DCHECK_NE(fd, -1);
-
-  struct timespec times[2];
-  if (Error error = TimespecOrNowToStandardTimespec(atime.get(), &times[0])) {
-    callback.Run(error);
-    return;
-  }
-  if (Error error = TimespecOrNowToStandardTimespec(mtime.get(), &times[1])) {
-    callback.Run(error);
-    return;
-  }
-
-  if (futimens(fd, times) != 0) {
-    callback.Run(ErrnoToError(errno));
-    return;
-  }
-
-  callback.Run(ERROR_OK);
-}
-
-}  // namespace filesystem