Repo created

TMessagesProj/jni/voip/webrtc/base/files/scoped_temp_dir.cc

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+// Copyright (c) 2011 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/scoped_temp_dir.h"
+
+#include "base/files/file_util.h"
+#include "base/logging.h"
+#include "base/macros.h"
+
+namespace base {
+
+namespace {
+
+constexpr FilePath::CharType kScopedDirPrefix[] =
+    FILE_PATH_LITERAL("scoped_dir");
+
+}  // namespace
+
+ScopedTempDir::ScopedTempDir() = default;
+
+ScopedTempDir::ScopedTempDir(ScopedTempDir&& other) noexcept
+    : path_(other.Take()) {}
+
+ScopedTempDir& ScopedTempDir::operator=(ScopedTempDir&& other) {
+  if (!path_.empty() && !Delete())
+    DLOG(WARNING) << "Could not delete temp dir in operator=().";
+  path_ = other.Take();
+  return *this;
+}
+
+ScopedTempDir::~ScopedTempDir() {
+  if (!path_.empty() && !Delete())
+    DLOG(WARNING) << "Could not delete temp dir in dtor.";
+}
+
+bool ScopedTempDir::CreateUniqueTempDir() {
+  if (!path_.empty())
+    return false;
+
+  // This "scoped_dir" prefix is only used on Windows and serves as a template
+  // for the unique name.
+  if (!CreateNewTempDirectory(kScopedDirPrefix, &path_))
+    return false;
+
+  return true;
+}
+
+bool ScopedTempDir::CreateUniqueTempDirUnderPath(const FilePath& base_path) {
+  if (!path_.empty())
+    return false;
+
+  // If |base_path| does not exist, create it.
+  if (!CreateDirectory(base_path))
+    return false;
+
+  // Create a new, uniquely named directory under |base_path|.
+  if (!CreateTemporaryDirInDir(base_path, kScopedDirPrefix, &path_))
+    return false;
+
+  return true;
+}
+
+bool ScopedTempDir::Set(const FilePath& path) {
+  if (!path_.empty())
+    return false;
+
+  if (!DirectoryExists(path) && !CreateDirectory(path))
+    return false;
+
+  path_ = path;
+  return true;
+}
+
+bool ScopedTempDir::Delete() {
+  if (path_.empty())
+    return false;
+
+  bool ret = DeleteFileRecursively(path_);
+  if (ret) {
+    // We only clear the path if deleted the directory.
+    path_.clear();
+  }
+
+  return ret;
+}
+
+FilePath ScopedTempDir::Take() {
+  return std::exchange(path_, FilePath());
+}
+
+const FilePath& ScopedTempDir::GetPath() const {
+  DCHECK(!path_.empty()) << "Did you call CreateUniqueTempDir* before?";
+  return path_;
+}
+
+bool ScopedTempDir::IsValid() const {
+  return !path_.empty() && DirectoryExists(path_);
+}
+
+// static
+const FilePath::CharType* ScopedTempDir::GetTempDirPrefix() {
+  return kScopedDirPrefix;
+}
+
+}  // namespace base