ImportantFileWriter

base/file_util_win.cc

 // Copyright (c) 2006-2008 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/file_util.h"
 
 #include <windows.h>
 #include <shellapi.h>
 #include <shlobj.h>
 #include <time.h>
@@ skipping 428 matching lines @@
     return false;
 
   if (CreateTemporaryFileNameInDir(temp_path, &temp_file)) {
     *path = FilePath(temp_file);
     return true;
   }
 
   return false;
 }
 
+FILE* CreateAndOpenTemporaryShmemFile(FilePath* path) {
+  return CreateAndOpenTemporaryFile(path);
+}
+
 // On POSIX we have semantics to create and open a temporary file
 // atomically.
 // TODO(jrg): is there equivalent call to use on Windows instead of
 // going 2-step?
-FILE* CreateAndOpenTemporaryFile(FilePath* path) {
-
-  if (!CreateTemporaryFileName(path)) {
+FILE* CreateAndOpenTemporaryFileInDir(const FilePath& dir, FilePath* path) {
+  std::wstring wstring_path;
+  if (!CreateTemporaryFileNameInDir(dir.value(), &wstring_path)) {
     return NULL;
   }
-  return OpenFile(*path, "w+");
-}
-
-FILE* CreateAndOpenTemporaryShmemFile(FilePath* path) {
-  return CreateAndOpenTemporaryFile(path);
+  *path = FilePath(wstring_path);
+  // Open file in binary mode, to avoid problems with fwrite. On Windows
+  // it replaces \n's with \r\n's, which may surprise you.
+  // Reference: http://msdn.microsoft.com/en-us/library/h9t88zwz(VS.71).aspx
+  return OpenFile(*path, "wb+");
 }
 
 bool CreateTemporaryFileNameInDir(const std::wstring& dir,
                                   std::wstring* temp_file) {
   wchar_t temp_name[MAX_PATH + 1];
 
   if (!GetTempFileName(dir.c_str(), L"", 0, temp_name))
     return false;  // fail!
 
   DWORD path_len = GetLongPathName(temp_name, temp_name, MAX_PATH);
@@ skipping 331 matching lines @@
 void PathComponents(const std::wstring& path,
                     std::vector<std::wstring>* components) {
   PathComponents(FilePath(path), components);
 }
 void ReplaceExtension(std::wstring* file_name, const std::wstring& extension) {
   FilePath path(*file_name);
   ReplaceExtension(&path, extension);
   file_name->assign(path.value());
 }
 }  // namespace file_util