13f50c38dc070f4bb515c1b64450dae14f316474eKristian Monsen// Copyright (c) 2011 The Chromium Authors. All rights reserved. 2c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Use of this source code is governed by a BSD-style license that can be 3c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// found in the LICENSE file. 4c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 5c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// This file contains utility functions for dealing with the local 6c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// filesystem. 7c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 8c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifndef BASE_FILE_UTIL_H_ 9c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#define BASE_FILE_UTIL_H_ 103345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#pragma once 11c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 12c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "build/build_config.h" 13c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 14c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_WIN) 15c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <windows.h> 16c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#if defined(UNIT_TEST) 17c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include <aclapi.h> 18c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#endif 19c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif defined(OS_POSIX) 20c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <sys/stat.h> 21c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 22c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 23c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <stdio.h> 24c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 25c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <stack> 26c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <string> 27c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <vector> 28c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 29ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen#include "base/base_api.h" 30c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "base/basictypes.h" 31c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "base/file_path.h" 32ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen#include "base/memory/scoped_ptr.h" 33c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "base/platform_file.h" 34c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "base/string16.h" 35c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 36c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_POSIX) 37c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "base/eintr_wrapper.h" 38c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include "base/file_descriptor_posix.h" 39c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "base/logging.h" 40c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 41c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 42c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottnamespace base { 43c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottclass Time; 44c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 45c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 46c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottnamespace file_util { 47c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 48c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott//----------------------------------------------------------------------------- 49c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Functions that operate purely on a path string w/o touching the filesystem: 50c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 51c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true if the given path ends with a path separator character. 52ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool EndsWithSeparator(const FilePath& path); 53c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 54c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Makes sure that |path| ends with a separator IFF path is a directory that 55c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// exists. Returns true if |path| is an existing directory, false otherwise. 56ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool EnsureEndsWithSeparator(FilePath* path); 57c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 58c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Convert provided relative path into an absolute path. Returns false on 59c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// error. On POSIX, this function fails if the path does not exist. 60ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool AbsolutePath(FilePath* path); 61c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 62c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true if |parent| contains |child|. Both paths are converted to 63c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// absolute paths before doing the comparison. 64ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool ContainsPath(const FilePath& parent, const FilePath& child); 65c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 66c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott//----------------------------------------------------------------------------- 67c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Functions that involve filesystem access or modification: 68c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 69c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Returns the number of files matching the current path that were 70c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// created on or after the given |file_time|. Doesn't count ".." or ".". 71c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 72c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Note for POSIX environments: a file created before |file_time| 73c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// can be mis-detected as a newer file due to low precision of 74c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// timestmap of file creation time. If you need to avoid such 75c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// mis-detection perfectly, you should wait one second before 76c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// obtaining |file_time|. 77ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API int CountFilesCreatedAfter(const FilePath& path, 78ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const base::Time& file_time); 79c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 80c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Returns the total number of bytes used by all the files under |root_path|. 81c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// If the path does not exist the function returns 0. 82c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// 83c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// This function is implemented using the FileEnumerator class so it is not 84c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// particularly speedy in any platform. 85ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API int64 ComputeDirectorySize(const FilePath& root_path); 86c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 87c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Returns the total number of bytes used by all files matching the provided 88c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// |pattern|, on this |directory| (without recursion). If the path does not 89c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// exist the function returns 0. 90c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// 91c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// This function is implemented using the FileEnumerator class so it is not 92c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// particularly speedy in any platform. 93ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API int64 ComputeFilesSize(const FilePath& directory, 94ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const FilePath::StringType& pattern); 95c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 96c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Deletes the given path, whether it's a file or a directory. 97c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// If it's a directory, it's perfectly happy to delete all of the 98c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// directory's contents. Passing true to recursive deletes 99c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// subdirectories and their contents as well. 100c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true if successful, false otherwise. 101c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 102c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// WARNING: USING THIS WITH recursive==true IS EQUIVALENT 103c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// TO "rm -rf", SO USE WITH CAUTION. 104ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool Delete(const FilePath& path, bool recursive); 105c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 106c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_WIN) 107c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Schedules to delete the given path, whether it's a file or a directory, until 108c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// the operating system is restarted. 109c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Note: 110c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 1) The file/directory to be deleted should exist in a temp folder. 111c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 2) The directory to be deleted must be empty. 112ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool DeleteAfterReboot(const FilePath& path); 113c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 114c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 115c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Moves the given path, whether it's a file or a directory. 116c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// If a simple rename is not possible, such as in the case where the paths are 117c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// on different volumes, this will attempt to copy and delete. Returns 118c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// true for success. 119ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool Move(const FilePath& from_path, const FilePath& to_path); 120c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 121c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Renames file |from_path| to |to_path|. Both paths must be on the same 122c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// volume, or the function will fail. Destination file will be created 123c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// if it doesn't exist. Prefer this function over Move when dealing with 124c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// temporary files. On Windows it preserves attributes of the target file. 125c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true on success. 126ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool ReplaceFile(const FilePath& from_path, const FilePath& to_path); 127c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 128c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Copies a single file. Use CopyDirectory to copy directories. 129ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool CopyFile(const FilePath& from_path, const FilePath& to_path); 130c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 131c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Copies the given path, and optionally all subdirectories and their contents 132c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// as well. 133c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// If there are files existing under to_path, always overwrite. 134c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true if successful, false otherwise. 135c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Don't use wildcards on the names, it may stop working without notice. 136c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 137c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// If you only need to copy a file use CopyFile, it's faster. 138ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool CopyDirectory(const FilePath& from_path, const FilePath& to_path, 139ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen bool recursive); 140c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 141c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true if the given path exists on the local filesystem, 142c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// false otherwise. 143ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool PathExists(const FilePath& path); 144c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 145c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true if the given path is writable by the user, false otherwise. 146ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool PathIsWritable(const FilePath& path); 147c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 148c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true if the given path exists and is a directory, false otherwise. 149ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool DirectoryExists(const FilePath& path); 150c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 151c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_WIN) 152c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Gets the creation time of the given file (expressed in the local timezone), 153c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// and returns it via the creation_time parameter. Returns true if successful, 154c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// false otherwise. 155ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool GetFileCreationLocalTime(const std::wstring& filename, 156ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen LPSYSTEMTIME creation_time); 157c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 158c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Same as above, but takes a previously-opened file handle instead of a name. 159ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool GetFileCreationLocalTimeFromHandle(HANDLE file_handle, 160ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen LPSYSTEMTIME creation_time); 161c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif // defined(OS_WIN) 162c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 163c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true if the contents of the two files given are equal, false 164c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// otherwise. If either file can't be read, returns false. 165ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool ContentsEqual(const FilePath& filename1, 166ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const FilePath& filename2); 167c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 168c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true if the contents of the two text files given are equal, false 169c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// otherwise. This routine treats "\r\n" and "\n" as equivalent. 170ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool TextContentsEqual(const FilePath& filename1, 171ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const FilePath& filename2); 172c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 173c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Read the file at |path| into |contents|, returning true on success. 174c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// |contents| may be NULL, in which case this function is useful for its 175c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// side effect of priming the disk cache. 176c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Useful for unit tests. 177ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool ReadFileToString(const FilePath& path, std::string* contents); 178c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 179c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_POSIX) 180c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Read exactly |bytes| bytes from file descriptor |fd|, storing the result 181c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// in |buffer|. This function is protected against EINTR and partial reads. 182c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true iff |bytes| bytes have been successfuly read from |fd|. 183c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottbool ReadFromFD(int fd, char* buffer, size_t bytes); 184201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch 185201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch// Creates a symbolic link at |symlink| pointing to |target|. Returns 186201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch// false on failure. 187201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdochbool CreateSymbolicLink(const FilePath& target, const FilePath& symlink); 188201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch 189201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch// Reads the given |symlink| and returns where it points to in |target|. 190201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdoch// Returns false upon failure. 191201ade2fbba22bfb27ae029f4d23fca6ded109a0Ben Murdochbool ReadSymbolicLink(const FilePath& symlink, FilePath* target); 192c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif // defined(OS_POSIX) 193c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 194c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_WIN) 195c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Resolve Windows shortcut (.LNK file) 196c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// This methods tries to resolve a shortcut .LNK file. If the |path| is valid 197c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// returns true and puts the target into the |path|, otherwise returns 198c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// false leaving the path as it is. 199ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool ResolveShortcut(FilePath* path); 200c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 201c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Create a Windows shortcut (.LNK file) 202c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// This method creates a shortcut link using the information given. Ensure 203c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// you have initialized COM before calling into this function. 'source' 204c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// and 'destination' parameters are required, everything else can be NULL. 205c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 'source' is the existing file, 'destination' is the new link file to be 206c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// created; for best results pass the filename with the .lnk extension. 207c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// The 'icon' can specify a dll or exe in which case the icon index is the 208c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// resource id. 'app_id' is the app model id for the shortcut on Win7. 209c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Note that if the shortcut exists it will overwrite it. 210ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool CreateShortcutLink(const wchar_t *source, 211ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t *destination, 212ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t *working_dir, 213ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t *arguments, 214ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t *description, 215ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t *icon, 216ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen int icon_index, 217ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t* app_id); 218c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 219c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Update a Windows shortcut (.LNK file). This method assumes the shortcut 220c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// link already exists (otherwise false is returned). Ensure you have 221c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// initialized COM before calling into this function. Only 'destination' 222c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// parameter is required, everything else can be NULL (but if everything else 223c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// is NULL no changes are made to the shortcut). 'destination' is the link 224c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// file to be updated. 'app_id' is the app model id for the shortcut on Win7. 225c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// For best results pass the filename with the .lnk extension. 226ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool UpdateShortcutLink(const wchar_t *source, 227ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t *destination, 228ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t *working_dir, 229ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t *arguments, 230ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t *description, 231ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t *icon, 232ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen int icon_index, 233ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const wchar_t* app_id); 234c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 235c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Pins a shortcut to the Windows 7 taskbar. The shortcut file must already 236c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// exist and be a shortcut that points to an executable. 237ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool TaskbarPinShortcutLink(const wchar_t* shortcut); 238c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 239c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Unpins a shortcut from the Windows 7 taskbar. The shortcut must exist and 240c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// already be pinned to the taskbar. 241ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool TaskbarUnpinShortcutLink(const wchar_t* shortcut); 242c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 243c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Copy from_path to to_path recursively and then delete from_path recursively. 244c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true if all operations succeed. 245c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// This function simulates Move(), but unlike Move() it works across volumes. 246c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// This fuction is not transactional. 247ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool CopyAndDeleteDirectory(const FilePath& from_path, 248ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const FilePath& to_path); 249c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#endif // defined(OS_WIN) 250c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 251c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Return true if the given directory is empty 252ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool IsDirectoryEmpty(const FilePath& dir_path); 253c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 254c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Get the temporary directory provided by the system. 2553345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// WARNING: DON'T USE THIS. If you want to create a temporary file, use one of 2563345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// the functions below. 257ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool GetTempDir(FilePath* path); 258c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Get a temporary directory for shared memory files. 259c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Only useful on POSIX; redirects to GetTempDir() on Windows. 260ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool GetShmemTempDir(FilePath* path); 261c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 262c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Get the home directory. This is more complicated than just getenv("HOME") 263c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// as it knows to fall back on getpwent() etc. 264ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API FilePath GetHomeDir(); 265c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 266c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Creates a temporary file. The full path is placed in |path|, and the 267c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// function returns true if was successful in creating the file. The file will 268c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// be empty and all handles closed after this function returns. 269ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool CreateTemporaryFile(FilePath* path); 270c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 2713345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// Same as CreateTemporaryFile but the file is created in |dir|. 272ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool CreateTemporaryFileInDir(const FilePath& dir, 273ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen FilePath* temp_file); 2743345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick 275c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Create and open a temporary file. File is opened for read/write. 276c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// The full path is placed in |path|. 277c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Returns a handle to the opened file or NULL if an error occured. 278ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API FILE* CreateAndOpenTemporaryFile(FilePath* path); 279c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Like above but for shmem files. Only useful for POSIX. 280ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API FILE* CreateAndOpenTemporaryShmemFile(FilePath* path); 281c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Similar to CreateAndOpenTemporaryFile, but the file is created in |dir|. 282ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API FILE* CreateAndOpenTemporaryFileInDir(const FilePath& dir, 283ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen FilePath* path); 284c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 2853345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// Create a new directory. If prefix is provided, the new directory name is in 2863345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// the format of prefixyyyy. 2873345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// NOTE: prefix is ignored in the POSIX implementation. 2883345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// If success, return true and output the full path of the directory created. 289ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool CreateNewTempDirectory(const FilePath::StringType& prefix, 290ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen FilePath* new_temp_path); 291c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 292c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Create a directory within another directory. 2933345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// Extra characters will be appended to |prefix| to ensure that the 294c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// new directory does not have the same name as an existing directory. 295ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool CreateTemporaryDirInDir(const FilePath& base_dir, 296ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const FilePath::StringType& prefix, 297ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen FilePath* new_dir); 298c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 299c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Creates a directory, as well as creating any parent directories, if they 300c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// don't exist. Returns 'true' on successful creation, or if the directory 301c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// already exists. The directory is only readable by the current user. 302ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool CreateDirectory(const FilePath& full_path); 303c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 304c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns the file size. Returns true on success. 305ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool GetFileSize(const FilePath& file_path, int64* file_size); 306c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 307c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Returns true if the given path's base name is ".". 308ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool IsDot(const FilePath& path); 309c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 310c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Returns true if the given path's base name is "..". 311ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool IsDotDot(const FilePath& path); 312c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 313c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Sets |real_path| to |path| with symbolic links and junctions expanded. 314c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// On windows, make sure the path starts with a lettered drive. 315c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// |path| must reference a file. Function will fail if |path| points to 316c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// a directory or to a nonexistent path. On windows, this function will 317c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// fail if |path| is a junction or symlink that points to an empty file, 318c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// or if |real_path| would be longer than MAX_PATH characters. 319ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool NormalizeFilePath(const FilePath& path, FilePath* real_path); 320c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 3213345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#if defined(OS_WIN) 3223345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// Given an existing file in |path|, it returns in |real_path| the path 3233345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// in the native NT format, of the form "\Device\HarddiskVolumeXX\..". 3243345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// Returns false it it fails. Empty files cannot be resolved with this 3253345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// function. 326ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool NormalizeToNativeFilePath(const FilePath& path, 327ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen FilePath* nt_path); 3283345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#endif 329c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 330c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns information about the given file path. 331ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool GetFileInfo(const FilePath& file_path, 332ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen base::PlatformFileInfo* info); 3333345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick 3343345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// Sets the time of the last access and the time of the last modification. 335ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool TouchFile(const FilePath& path, 336ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const base::Time& last_accessed, 337ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const base::Time& last_modified); 338c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 339c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Set the time of the last modification. Useful for unit tests. 340ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool SetLastModifiedTime(const FilePath& path, 341ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const base::Time& last_modified); 342c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 343c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_POSIX) 344c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Store inode number of |path| in |inode|. Return true on success. 345c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottbool GetInode(const FilePath& path, ino_t* inode); 346c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 347c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 348c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Wrapper for fopen-like calls. Returns non-NULL FILE* on success. 349ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API FILE* OpenFile(const FilePath& filename, const char* mode); 350c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 351c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Closes file opened by OpenFile. Returns true on success. 352ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool CloseFile(FILE* file); 353c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 354c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Truncates an open file to end at the location of the current file pointer. 355c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// This is a cross-platform analog to Windows' SetEndOfFile() function. 356ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool TruncateFile(FILE* file); 357c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 358c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Reads the given number of bytes from the file into the buffer. Returns 359c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// the number of read bytes, or -1 on error. 360ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API int ReadFile(const FilePath& filename, char* data, int size); 361c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 362c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Writes the given buffer into the file, overwriting any data that was 363c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// previously there. Returns the number of bytes written, or -1 on error. 364ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API int WriteFile(const FilePath& filename, const char* data, int size); 365c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_POSIX) 366c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Append the data to |fd|. Does not close |fd| when done. 367c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottint WriteFileDescriptor(const int fd, const char* data, int size); 368c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 369c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 370c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Gets the current working directory for the process. 371ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool GetCurrentDirectory(FilePath* path); 372c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 373c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Sets the current working directory for the process. 374ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool SetCurrentDirectory(const FilePath& path); 375c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 376c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// A class to handle auto-closing of FILE*'s. 377c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottclass ScopedFILEClose { 378c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott public: 379c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott inline void operator()(FILE* x) const { 380c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (x) { 381c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott fclose(x); 382c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 383c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 384c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott}; 385c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 386c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scotttypedef scoped_ptr_malloc<FILE, ScopedFILEClose> ScopedFILE; 387c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 388c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_POSIX) 389c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// A class to handle auto-closing of FDs. 390c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottclass ScopedFDClose { 391c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott public: 392c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott inline void operator()(int* x) const { 393c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (x && *x >= 0) { 394c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (HANDLE_EINTR(close(*x)) < 0) 395c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch PLOG(ERROR) << "close"; 396c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 397c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 398c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott}; 399c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 400c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scotttypedef scoped_ptr_malloc<int, ScopedFDClose> ScopedFD; 401c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif // OS_POSIX 402c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 403c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// A class for enumerating the files in a provided path. The order of the 404c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// results is not guaranteed. 405c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 406c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// DO NOT USE FROM THE MAIN THREAD of your application unless it is a test 407c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// program where latency does not matter. This class is blocking. 408ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsenclass BASE_API FileEnumerator { 409c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott public: 410c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_WIN) 411c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott typedef WIN32_FIND_DATA FindInfo; 412c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif defined(OS_POSIX) 413c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott typedef struct { 414c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott struct stat stat; 415c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott std::string filename; 416c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } FindInfo; 417c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 418c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 419c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott enum FILE_TYPE { 420c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FILES = 1 << 0, 421c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott DIRECTORIES = 1 << 1, 422c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott INCLUDE_DOT_DOT = 1 << 2, 423c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_POSIX) 424c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott SHOW_SYM_LINKS = 1 << 4, 425c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 426c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott }; 427c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 428c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // |root_path| is the starting directory to search for. It may or may not end 429c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // in a slash. 430c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // 431c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // If |recursive| is true, this will enumerate all matches in any 432c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // subdirectories matched as well. It does a breadth-first search, so all 433c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // files in one directory will be returned before any files in a 434c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // subdirectory. 435c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // 436c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // |file_type| specifies whether the enumerator should match files, 437c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // directories, or both. 438c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // 439c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // |pattern| is an optional pattern for which files to match. This 440c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // works like shell globbing. For example, "*.txt" or "Foo???.doc". 441c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // However, be careful in specifying patterns that aren't cross platform 442c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // since the underlying code uses OS-specific matching routines. In general, 443c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Windows matching is less featureful than others, so test there first. 444c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // If unspecified, this will match all files. 445c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // NOTE: the pattern only matches the contents of root_path, not files in 446c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // recursive subdirectories. 447c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // TODO(erikkay): Fix the pattern matching to work at all levels. 448c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FileEnumerator(const FilePath& root_path, 449c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott bool recursive, 450c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FileEnumerator::FILE_TYPE file_type); 451c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FileEnumerator(const FilePath& root_path, 452c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott bool recursive, 453c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FileEnumerator::FILE_TYPE file_type, 454c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const FilePath::StringType& pattern); 455c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ~FileEnumerator(); 456c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 457c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Returns an empty string if there are no more results. 458c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FilePath Next(); 459c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 460c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Write the file info into |info|. 461c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott void GetFindInfo(FindInfo* info); 462c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 463c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Looks inside a FindInfo and determines if it's a directory. 464c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott static bool IsDirectory(const FindInfo& info); 465c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 466c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch static FilePath GetFilename(const FindInfo& find_info); 467c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 468c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott private: 469c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Returns true if the given path should be skipped in enumeration. 470c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott bool ShouldSkip(const FilePath& path); 471c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 472c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 473c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_WIN) 474731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick // True when find_data_ is valid. 475731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick bool has_find_data_; 476c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott WIN32_FIND_DATA find_data_; 477c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott HANDLE find_handle_; 478c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#elif defined(OS_POSIX) 4793f50c38dc070f4bb515c1b64450dae14f316474eKristian Monsen struct DirectoryEntryInfo { 480c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FilePath filename; 481c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott struct stat stat; 4823f50c38dc070f4bb515c1b64450dae14f316474eKristian Monsen }; 483c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 484c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Read the filenames in source into the vector of DirectoryEntryInfo's 485c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott static bool ReadDirectory(std::vector<DirectoryEntryInfo>* entries, 486c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const FilePath& source, bool show_links); 487c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 488c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // The files in the current directory 489c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott std::vector<DirectoryEntryInfo> directory_entries_; 490c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 491c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // The next entry to use from the directory_entries_ vector 492c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott size_t current_directory_entry_; 493c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 494c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 495c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FilePath root_path_; 496c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott bool recursive_; 497c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FILE_TYPE file_type_; 498c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FilePath::StringType pattern_; // Empty when we want to find everything. 499c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 500c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // A stack that keeps track of which subdirectories we still need to 501c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // enumerate in the breadth-first search. 502c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott std::stack<FilePath> pending_paths_; 503c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 504c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott DISALLOW_COPY_AND_ASSIGN(FileEnumerator); 505c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott}; 506c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 507ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsenclass BASE_API MemoryMappedFile { 508c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott public: 509c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // The default constructor sets all members to invalid/null values. 510c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott MemoryMappedFile(); 511c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ~MemoryMappedFile(); 512c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 513c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Opens an existing file and maps it into memory. Access is restricted to 514c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // read only. If this object already points to a valid memory mapped file 515c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // then this method will fail and return false. If it cannot open the file, 516c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // the file does not exist, or the memory mapping fails, it will return false. 517c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Later we may want to allow the user to specify access. 518c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott bool Initialize(const FilePath& file_name); 519c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // As above, but works with an already-opened file. MemoryMappedFile will take 520c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // ownership of |file| and close it when done. 521c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott bool Initialize(base::PlatformFile file); 522c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 523dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen#if defined(OS_WIN) 524dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // Opens an existing file and maps it as an image section. Please refer to 525dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // the Initialize function above for additional information. 526dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen bool InitializeAsImageSection(const FilePath& file_name); 527dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen#endif // OS_WIN 528dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen 529c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const uint8* data() const { return data_; } 530c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott size_t length() const { return length_; } 531c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 532c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Is file_ a valid file handle that points to an open, memory mapped file? 533dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen bool IsValid() const; 534c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 535c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott private: 536c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Open the given file and pass it to MapFileToMemoryInternal(). 537c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott bool MapFileToMemory(const FilePath& file_name); 538c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 539c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Map the file to memory, set data_ to that memory address. Return true on 540c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // success, false on any kind of failure. This is a helper for Initialize(). 541c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott bool MapFileToMemoryInternal(); 542c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 543c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Closes all open handles. Later we may want to make this public. 544c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott void CloseHandles(); 545c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 546c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#if defined(OS_WIN) 547dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // MapFileToMemoryInternal calls this function. It provides the ability to 548dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // pass in flags which control the mapped section. 549dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen bool MapFileToMemoryInternalEx(int flags); 550dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen 551c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott HANDLE file_mapping_; 552c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif 553dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen base::PlatformFile file_; 554c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott uint8* data_; 555c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott size_t length_; 556c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 557c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott DISALLOW_COPY_AND_ASSIGN(MemoryMappedFile); 558c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott}; 559c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 560c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Renames a file using the SHFileOperation API to ensure that the target file 561c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// gets the correct default security descriptor in the new path. 562ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool RenameFileAndResetSecurityDescriptor( 563c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const FilePath& source_file_path, 564c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const FilePath& target_file_path); 565c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 566c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns whether the file has been modified since a particular date. 567ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian MonsenBASE_API bool HasFileBeenModifiedSince( 568ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const FileEnumerator::FindInfo& find_info, 569ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const base::Time& cutoff_time); 570c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 571c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#ifdef UNIT_TEST 572c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 573c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochinline bool MakeFileUnreadable(const FilePath& path) { 574c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#if defined(OS_POSIX) 575c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch struct stat stat_buf; 576c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (stat(path.value().c_str(), &stat_buf) != 0) 577c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return false; 578c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch stat_buf.st_mode &= ~(S_IRUSR | S_IRGRP | S_IROTH); 579c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 580c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return chmod(path.value().c_str(), stat_buf.st_mode) == 0; 581c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 582c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#elif defined(OS_WIN) 583c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch PACL old_dacl; 584c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch PSECURITY_DESCRIPTOR security_descriptor; 585c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (GetNamedSecurityInfo(const_cast<wchar_t*>(path.value().c_str()), 586c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch SE_FILE_OBJECT, 587c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DACL_SECURITY_INFORMATION, NULL, NULL, &old_dacl, 588c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch NULL, &security_descriptor) != ERROR_SUCCESS) 589c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return false; 590c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 591c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Deny Read access for the current user. 592c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch EXPLICIT_ACCESS change; 593c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch change.grfAccessPermissions = GENERIC_READ; 594c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch change.grfAccessMode = DENY_ACCESS; 595c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch change.grfInheritance = 0; 596c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch change.Trustee.pMultipleTrustee = NULL; 597c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch change.Trustee.MultipleTrusteeOperation = NO_MULTIPLE_TRUSTEE; 598c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch change.Trustee.TrusteeForm = TRUSTEE_IS_NAME; 599c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch change.Trustee.TrusteeType = TRUSTEE_IS_USER; 600c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch change.Trustee.ptstrName = L"CURRENT_USER"; 601c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 602c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch PACL new_dacl; 603c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (SetEntriesInAcl(1, &change, old_dacl, &new_dacl) != ERROR_SUCCESS) { 604c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch LocalFree(security_descriptor); 605c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return false; 606c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 607c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 608c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DWORD rc = SetNamedSecurityInfo(const_cast<wchar_t*>(path.value().c_str()), 609c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch SE_FILE_OBJECT, DACL_SECURITY_INFORMATION, 610c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch NULL, NULL, new_dacl, NULL); 611c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch LocalFree(security_descriptor); 612c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch LocalFree(new_dacl); 613c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 614c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return rc == ERROR_SUCCESS; 615c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#else 616c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch NOTIMPLEMENTED(); 617c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return false; 618c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#endif 619c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 620c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 621c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#endif // UNIT_TEST 622c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 623c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#if defined(OS_WIN) 624c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Loads the file passed in as an image section and touches pages to avoid 625c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // subsequent hard page faults during LoadLibrary. The size to be pre read 626c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // is passed in. If it is 0 then the whole file is paged in. The step size 627c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // which indicates the number of bytes to skip after every page touched is 628c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // also passed in. 629ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsenbool BASE_API PreReadImage(const wchar_t* file_path, size_t size_to_read, 630ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen size_t step_size); 631c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#endif // OS_WIN 6323345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick 6333345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#if defined(OS_LINUX) 6343345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// Broad categories of file systems as returned by statfs() on Linux. 6353345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrickenum FileSystemType { 6363345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick FILE_SYSTEM_UNKNOWN, // statfs failed. 6373345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick FILE_SYSTEM_0, // statfs.f_type == 0 means unknown, may indicate AFS. 6383345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick FILE_SYSTEM_ORDINARY, // on-disk filesystem like ext2 6393345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick FILE_SYSTEM_NFS, 6403345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick FILE_SYSTEM_SMB, 6413345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick FILE_SYSTEM_CODA, 6423345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick FILE_SYSTEM_MEMORY, // in-memory file system 643ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen FILE_SYSTEM_CGROUP, // cgroup control. 6443345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick FILE_SYSTEM_OTHER, // any other value. 6453345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick FILE_SYSTEM_TYPE_COUNT 6463345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick}; 6473345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick 6483345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// Attempts determine the FileSystemType for |path|. 6493345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// Returns false if |path| doesn't exist. 6503345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrickbool GetFileSystemType(const FilePath& path, FileSystemType* type); 6513345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#endif 6523345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick 653c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} // namespace file_util 654c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 655c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Deprecated functions have been moved to this separate header file, 656c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// which must be included last after all the above definitions. 657c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "base/file_util_deprecated.h" 658c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 659c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif // BASE_FILE_UTIL_H_ 660