Reland "Move webrtc/{base => rtc_base}" (https://codereview.webrtc.org/2877023002)
Reland the base->rtc_base without adding stub headers (will be
done in follow-up CL). This preserves git blame history of all files.
BUG=webrtc:7634
NOTRY=True
TBR=kwiberg@webrtc.org
Change-Id: Iea3bb6f3f67b8374c96337b63e8f5aa3e6181012
Reviewed-on: https://chromium-review.googlesource.com/554611
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#18821}diff --git a/webrtc/rtc_base/fileutils.h b/webrtc/rtc_base/fileutils.h
new file mode 100644
index 0000000..17e8103
--- /dev/null
+++ b/webrtc/rtc_base/fileutils.h
@@ -0,0 +1,182 @@
+/*
+ * Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_RTC_BASE_FILEUTILS_H_
+#define WEBRTC_RTC_BASE_FILEUTILS_H_
+
+#include <string>
+
+#if !defined(WEBRTC_WIN)
+#include <dirent.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#endif
+
+#include "webrtc/base/checks.h"
+#include "webrtc/base/constructormagic.h"
+#include "webrtc/base/platform_file.h"
+
+namespace rtc {
+
+class FileStream;
+class Pathname;
+
+//////////////////////////
+// Directory Iterator //
+//////////////////////////
+
+// A DirectoryIterator is created with a given directory. It originally points
+// to the first file in the directory, and can be advanecd with Next(). This
+// allows you to get information about each file.
+
+class DirectoryIterator {
+ friend class Filesystem;
+ public:
+ // Constructor
+ DirectoryIterator();
+ // Destructor
+ virtual ~DirectoryIterator();
+
+ // Starts traversing a directory
+ // dir is the directory to traverse
+ // returns true if the directory exists and is valid
+ // The iterator will point to the first entry in the directory
+ virtual bool Iterate(const Pathname &path);
+
+ // Advances to the next file
+ // returns true if there were more files in the directory.
+ virtual bool Next();
+
+ // returns true if the file currently pointed to is a directory
+ virtual bool IsDirectory() const;
+
+ // returns the name of the file currently pointed to
+ virtual std::string Name() const;
+
+ private:
+ std::string directory_;
+#if defined(WEBRTC_WIN)
+ WIN32_FIND_DATA data_;
+ HANDLE handle_;
+#else
+ DIR *dir_;
+ struct dirent *dirent_;
+ struct stat stat_;
+#endif
+};
+
+class FilesystemInterface {
+ public:
+ virtual ~FilesystemInterface() {}
+
+ // This will attempt to delete the path located at filename.
+ // It DCHECKs and returns false if the path points to a folder or a
+ // non-existent file.
+ virtual bool DeleteFile(const Pathname &filename) = 0;
+
+ // Creates a directory. This will call itself recursively to create /foo/bar
+ // even if /foo does not exist. Returns true if the function succeeds.
+ virtual bool CreateFolder(const Pathname &pathname) = 0;
+
+ // This moves a file from old_path to new_path, where "old_path" is a
+ // plain file. This DCHECKs and returns false if old_path points to a
+ // directory, and returns true if the function succeeds.
+ virtual bool MoveFile(const Pathname &old_path, const Pathname &new_path) = 0;
+
+ // Returns true if pathname refers to a directory
+ virtual bool IsFolder(const Pathname& pathname) = 0;
+
+ // Returns true if pathname refers to a file
+ virtual bool IsFile(const Pathname& pathname) = 0;
+
+ // Returns true if pathname refers to no filesystem object, every parent
+ // directory either exists, or is also absent.
+ virtual bool IsAbsent(const Pathname& pathname) = 0;
+
+ // A folder appropriate for storing temporary files (Contents are
+ // automatically deleted when the program exits)
+ virtual bool GetTemporaryFolder(Pathname &path, bool create,
+ const std::string *append) = 0;
+
+ virtual std::string TempFilename(const Pathname &dir,
+ const std::string &prefix) = 0;
+
+ // Determines the size of the file indicated by path.
+ virtual bool GetFileSize(const Pathname& path, size_t* size) = 0;
+};
+
+class Filesystem {
+ public:
+ static FilesystemInterface *default_filesystem() {
+ RTC_DCHECK(default_filesystem_);
+ return default_filesystem_;
+ }
+
+ static void set_default_filesystem(FilesystemInterface *filesystem) {
+ default_filesystem_ = filesystem;
+ }
+
+ static FilesystemInterface *swap_default_filesystem(
+ FilesystemInterface *filesystem) {
+ FilesystemInterface *cur = default_filesystem_;
+ default_filesystem_ = filesystem;
+ return cur;
+ }
+
+ static bool CreateFolder(const Pathname &pathname) {
+ return EnsureDefaultFilesystem()->CreateFolder(pathname);
+ }
+
+ static bool DeleteFile(const Pathname &filename) {
+ return EnsureDefaultFilesystem()->DeleteFile(filename);
+ }
+
+ static bool MoveFile(const Pathname &old_path, const Pathname &new_path) {
+ return EnsureDefaultFilesystem()->MoveFile(old_path, new_path);
+ }
+
+ static bool IsFolder(const Pathname& pathname) {
+ return EnsureDefaultFilesystem()->IsFolder(pathname);
+ }
+
+ static bool IsFile(const Pathname &pathname) {
+ return EnsureDefaultFilesystem()->IsFile(pathname);
+ }
+
+ static bool IsAbsent(const Pathname &pathname) {
+ return EnsureDefaultFilesystem()->IsAbsent(pathname);
+ }
+
+ static bool GetTemporaryFolder(Pathname &path, bool create,
+ const std::string *append) {
+ return EnsureDefaultFilesystem()->GetTemporaryFolder(path, create, append);
+ }
+
+ static std::string TempFilename(const Pathname &dir,
+ const std::string &prefix) {
+ return EnsureDefaultFilesystem()->TempFilename(dir, prefix);
+ }
+
+ static bool GetFileSize(const Pathname& path, size_t* size) {
+ return EnsureDefaultFilesystem()->GetFileSize(path, size);
+ }
+
+ private:
+ static FilesystemInterface* default_filesystem_;
+
+ static FilesystemInterface *EnsureDefaultFilesystem();
+ RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(Filesystem);
+};
+
+} // namespace rtc
+
+#endif // WEBRTC_RTC_BASE_FILEUTILS_H_