Deleted OS_WIN and all Windows specific files from base.

base/files/file_win.cc

Index: base/files/file_win.cc
diff --git a/base/files/file_win.cc b/base/files/file_win.cc
deleted file mode 100644
index 97928522f106c3c16c58ed0e03b62901da3416a8..0000000000000000000000000000000000000000
--- a/base/files/file_win.cc
+++ /dev/null
@@ -1,405 +0,0 @@
-// Copyright (c) 2012 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 "base/files/file.h"
-
-#include <io.h>
-
-#include "base/logging.h"
-#include "base/metrics/sparse_histogram.h"
-#include "base/threading/thread_restrictions.h"
-
-namespace base {
-
-// Make sure our Whence mappings match the system headers.
-COMPILE_ASSERT(File::FROM_BEGIN   == FILE_BEGIN &&
-               File::FROM_CURRENT == FILE_CURRENT &&
-               File::FROM_END     == FILE_END, whence_matches_system);
-
-bool File::IsValid() const {
-  return file_.IsValid();
-}
-
-PlatformFile File::GetPlatformFile() const {
-  return file_.Get();
-}
-
-PlatformFile File::TakePlatformFile() {
-  return file_.Take();
-}
-
-void File::Close() {
-  if (!file_.IsValid())
-    return;
-
-  ThreadRestrictions::AssertIOAllowed();
-  SCOPED_FILE_TRACE("Close");
-  file_.Close();
-}
-
-int64 File::Seek(Whence whence, int64 offset) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(IsValid());
-
-  SCOPED_FILE_TRACE_WITH_SIZE("Seek", offset);
-
-  LARGE_INTEGER distance, res;
-  distance.QuadPart = offset;
-  DWORD move_method = static_cast<DWORD>(whence);
-  if (!SetFilePointerEx(file_.Get(), distance, &res, move_method))
-    return -1;
-  return res.QuadPart;
-}
-
-int File::Read(int64 offset, char* data, int size) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(IsValid());
-  DCHECK(!async_);
-  if (size < 0)
-    return -1;
-
-  SCOPED_FILE_TRACE_WITH_SIZE("Read", size);
-
-  LARGE_INTEGER offset_li;
-  offset_li.QuadPart = offset;
-
-  OVERLAPPED overlapped = {0};
-  overlapped.Offset = offset_li.LowPart;
-  overlapped.OffsetHigh = offset_li.HighPart;
-
-  DWORD bytes_read;
-  if (::ReadFile(file_.Get(), data, size, &bytes_read, &overlapped))
-    return bytes_read;
-  if (ERROR_HANDLE_EOF == GetLastError())
-    return 0;
-
-  return -1;
-}
-
-int File::ReadAtCurrentPos(char* data, int size) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(IsValid());
-  DCHECK(!async_);
-  if (size < 0)
-    return -1;
-
-  SCOPED_FILE_TRACE_WITH_SIZE("ReadAtCurrentPos", size);
-
-  DWORD bytes_read;
-  if (::ReadFile(file_.Get(), data, size, &bytes_read, NULL))
-    return bytes_read;
-  if (ERROR_HANDLE_EOF == GetLastError())
-    return 0;
-
-  return -1;
-}
-
-int File::ReadNoBestEffort(int64 offset, char* data, int size) {
-  // TODO(dbeam): trace this separately?
-  return Read(offset, data, size);
-}
-
-int File::ReadAtCurrentPosNoBestEffort(char* data, int size) {
-  // TODO(dbeam): trace this separately?
-  return ReadAtCurrentPos(data, size);
-}
-
-int File::Write(int64 offset, const char* data, int size) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(IsValid());
-  DCHECK(!async_);
-
-  SCOPED_FILE_TRACE_WITH_SIZE("Write", size);
-
-  LARGE_INTEGER offset_li;
-  offset_li.QuadPart = offset;
-
-  OVERLAPPED overlapped = {0};
-  overlapped.Offset = offset_li.LowPart;
-  overlapped.OffsetHigh = offset_li.HighPart;
-
-  DWORD bytes_written;
-  if (::WriteFile(file_.Get(), data, size, &bytes_written, &overlapped))
-    return bytes_written;
-
-  return -1;
-}
-
-int File::WriteAtCurrentPos(const char* data, int size) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(IsValid());
-  DCHECK(!async_);
-  if (size < 0)
-    return -1;
-
-  SCOPED_FILE_TRACE_WITH_SIZE("WriteAtCurrentPos", size);
-
-  DWORD bytes_written;
-  if (::WriteFile(file_.Get(), data, size, &bytes_written, NULL))
-    return bytes_written;
-
-  return -1;
-}
-
-int File::WriteAtCurrentPosNoBestEffort(const char* data, int size) {
-  return WriteAtCurrentPos(data, size);
-}
-
-int64 File::GetLength() {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(IsValid());
-
-  SCOPED_FILE_TRACE("GetLength");
-
-  LARGE_INTEGER size;
-  if (!::GetFileSizeEx(file_.Get(), &size))
-    return -1;
-
-  return static_cast<int64>(size.QuadPart);
-}
-
-bool File::SetLength(int64 length) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(IsValid());
-
-  SCOPED_FILE_TRACE_WITH_SIZE("SetLength", length);
-
-  // Get the current file pointer.
-  LARGE_INTEGER file_pointer;
-  LARGE_INTEGER zero;
-  zero.QuadPart = 0;
-  if (!::SetFilePointerEx(file_.Get(), zero, &file_pointer, FILE_CURRENT))
-    return false;
-
-  LARGE_INTEGER length_li;
-  length_li.QuadPart = length;
-  // If length > file size, SetFilePointerEx() should extend the file
-  // with zeroes on all Windows standard file systems (NTFS, FATxx).
-  if (!::SetFilePointerEx(file_.Get(), length_li, NULL, FILE_BEGIN))
-    return false;
-
-  // Set the new file length and move the file pointer to its old position.
-  // This is consistent with ftruncate()'s behavior, even when the file
-  // pointer points to a location beyond the end of the file.
-  // TODO(rvargas): Emulating ftruncate details seem suspicious and it is not
-  // promised by the interface (nor was promised by PlatformFile). See if this
-  // implementation detail can be removed.
-  return ((::SetEndOfFile(file_.Get()) != FALSE) &&
-          (::SetFilePointerEx(file_.Get(), file_pointer, NULL, FILE_BEGIN) !=
-           FALSE));
-}
-
-bool File::SetTimes(Time last_access_time, Time last_modified_time) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(IsValid());
-
-  SCOPED_FILE_TRACE("SetTimes");
-
-  FILETIME last_access_filetime = last_access_time.ToFileTime();
-  FILETIME last_modified_filetime = last_modified_time.ToFileTime();
-  return (::SetFileTime(file_.Get(), NULL, &last_access_filetime,
-                        &last_modified_filetime) != FALSE);
-}
-
-bool File::GetInfo(Info* info) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(IsValid());
-
-  SCOPED_FILE_TRACE("GetInfo");
-
-  BY_HANDLE_FILE_INFORMATION file_info;
-  if (!GetFileInformationByHandle(file_.Get(), &file_info))
-    return false;
-
-  LARGE_INTEGER size;
-  size.HighPart = file_info.nFileSizeHigh;
-  size.LowPart = file_info.nFileSizeLow;
-  info->size = size.QuadPart;
-  info->is_directory =
-      (file_info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
-  info->is_symbolic_link = false;  // Windows doesn't have symbolic links.
-  info->last_modified = Time::FromFileTime(file_info.ftLastWriteTime);
-  info->last_accessed = Time::FromFileTime(file_info.ftLastAccessTime);
-  info->creation_time = Time::FromFileTime(file_info.ftCreationTime);
-  return true;
-}
-
-File::Error File::Lock() {
-  DCHECK(IsValid());
-
-  SCOPED_FILE_TRACE("Lock");
-
-  BOOL result = LockFile(file_.Get(), 0, 0, MAXDWORD, MAXDWORD);
-  if (!result)
-    return OSErrorToFileError(GetLastError());
-  return FILE_OK;
-}
-
-File::Error File::Unlock() {
-  DCHECK(IsValid());
-
-  SCOPED_FILE_TRACE("Unlock");
-
-  BOOL result = UnlockFile(file_.Get(), 0, 0, MAXDWORD, MAXDWORD);
-  if (!result)
-    return OSErrorToFileError(GetLastError());
-  return FILE_OK;
-}
-
-File File::Duplicate() {
-  if (!IsValid())
-    return File();
-
-  SCOPED_FILE_TRACE("Duplicate");
-
-  HANDLE other_handle = nullptr;
-
-  if (!::DuplicateHandle(GetCurrentProcess(),  // hSourceProcessHandle
-                         GetPlatformFile(),
-                         GetCurrentProcess(),  // hTargetProcessHandle
-                         &other_handle,
-                         0,  // dwDesiredAccess ignored due to SAME_ACCESS
-                         FALSE,  // !bInheritHandle
-                         DUPLICATE_SAME_ACCESS)) {
-    return File(OSErrorToFileError(GetLastError()));
-  }
-
-  File other(other_handle);
-  if (async())
-    other.async_ = true;
-  return other.Pass();
-}
-
-// Static.
-File::Error File::OSErrorToFileError(DWORD last_error) {
-  switch (last_error) {
-    case ERROR_SHARING_VIOLATION:
-      return FILE_ERROR_IN_USE;
-    case ERROR_FILE_EXISTS:
-      return FILE_ERROR_EXISTS;
-    case ERROR_FILE_NOT_FOUND:
-    case ERROR_PATH_NOT_FOUND:
-      return FILE_ERROR_NOT_FOUND;
-    case ERROR_ACCESS_DENIED:
-      return FILE_ERROR_ACCESS_DENIED;
-    case ERROR_TOO_MANY_OPEN_FILES:
-      return FILE_ERROR_TOO_MANY_OPENED;
-    case ERROR_OUTOFMEMORY:
-    case ERROR_NOT_ENOUGH_MEMORY:
-      return FILE_ERROR_NO_MEMORY;
-    case ERROR_HANDLE_DISK_FULL:
-    case ERROR_DISK_FULL:
-    case ERROR_DISK_RESOURCES_EXHAUSTED:
-      return FILE_ERROR_NO_SPACE;
-    case ERROR_USER_MAPPED_FILE:
-      return FILE_ERROR_INVALID_OPERATION;
-    case ERROR_NOT_READY:
-    case ERROR_SECTOR_NOT_FOUND:
-    case ERROR_DEV_NOT_EXIST:
-    case ERROR_IO_DEVICE:
-    case ERROR_FILE_CORRUPT:
-    case ERROR_DISK_CORRUPT:
-      return FILE_ERROR_IO;
-    default:
-      UMA_HISTOGRAM_SPARSE_SLOWLY("PlatformFile.UnknownErrors.Windows",
-                                  last_error);
-      return FILE_ERROR_FAILED;
-  }
-}
-
-void File::DoInitialize(uint32 flags) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(!IsValid());
-
-  DWORD disposition = 0;
-
-  if (flags & FLAG_OPEN)
-    disposition = OPEN_EXISTING;
-
-  if (flags & FLAG_CREATE) {
-    DCHECK(!disposition);
-    disposition = CREATE_NEW;
-  }
-
-  if (flags & FLAG_OPEN_ALWAYS) {
-    DCHECK(!disposition);
-    disposition = OPEN_ALWAYS;
-  }
-
-  if (flags & FLAG_CREATE_ALWAYS) {
-    DCHECK(!disposition);
-    DCHECK(flags & FLAG_WRITE);
-    disposition = CREATE_ALWAYS;
-  }
-
-  if (flags & FLAG_OPEN_TRUNCATED) {
-    DCHECK(!disposition);
-    DCHECK(flags & FLAG_WRITE);
-    disposition = TRUNCATE_EXISTING;
-  }
-
-  if (!disposition) {
-    NOTREACHED();
-    return;
-  }
-
-  DWORD access = 0;
-  if (flags & FLAG_WRITE)
-    access = GENERIC_WRITE;
-  if (flags & FLAG_APPEND) {
-    DCHECK(!access);
-    access = FILE_APPEND_DATA;
-  }
-  if (flags & FLAG_READ)
-    access |= GENERIC_READ;
-  if (flags & FLAG_WRITE_ATTRIBUTES)
-    access |= FILE_WRITE_ATTRIBUTES;
-  if (flags & FLAG_EXECUTE)
-    access |= GENERIC_EXECUTE;
-
-  DWORD sharing = (flags & FLAG_EXCLUSIVE_READ) ? 0 : FILE_SHARE_READ;
-  if (!(flags & FLAG_EXCLUSIVE_WRITE))
-    sharing |= FILE_SHARE_WRITE;
-  if (flags & FLAG_SHARE_DELETE)
-    sharing |= FILE_SHARE_DELETE;
-
-  DWORD create_flags = 0;
-  if (flags & FLAG_ASYNC)
-    create_flags |= FILE_FLAG_OVERLAPPED;
-  if (flags & FLAG_TEMPORARY)
-    create_flags |= FILE_ATTRIBUTE_TEMPORARY;
-  if (flags & FLAG_HIDDEN)
-    create_flags |= FILE_ATTRIBUTE_HIDDEN;
-  if (flags & FLAG_DELETE_ON_CLOSE)
-    create_flags |= FILE_FLAG_DELETE_ON_CLOSE;
-  if (flags & FLAG_BACKUP_SEMANTICS)
-    create_flags |= FILE_FLAG_BACKUP_SEMANTICS;
-
-  file_.Set(CreateFile(path_.value().c_str(), access, sharing, NULL,
-                       disposition, create_flags, NULL));
-
-  if (file_.IsValid()) {
-    error_details_ = FILE_OK;
-    async_ = ((flags & FLAG_ASYNC) == FLAG_ASYNC);
-
-    if (flags & (FLAG_OPEN_ALWAYS))
-      created_ = (ERROR_ALREADY_EXISTS != GetLastError());
-    else if (flags & (FLAG_CREATE_ALWAYS | FLAG_CREATE))
-      created_ = true;
-  } else {
-    error_details_ = OSErrorToFileError(GetLastError());
-  }
-}
-
-bool File::DoFlush() {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK(IsValid());
-  return ::FlushFileBuffers(file_.Get()) != FALSE;
-}
-
-void File::SetPlatformFile(PlatformFile file) {
-  file_.Set(file);
-}
-
-}  // namespace base