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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Cross platform methods for FilePathWatcher. See the various platform
// specific implementation files, too.
#include "base/files/file_path_watcher.h"
#include <memory>
#include <utility>
#include "base/check.h"
#include "base/files/file_path.h"
#include "build/build_config.h"
namespace base {
FilePathWatcher::~FilePathWatcher() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
impl_->Cancel();
}
// static
bool FilePathWatcher::RecursiveWatchAvailable() {
#if BUILDFLAG(IS_MAC) || BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || \
BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_AIX) || \
BUILDFLAG(IS_FUCHSIA)
return true;
#else
// FSEvents isn't available on iOS.
return false;
#endif
}
FilePathWatcher::PlatformDelegate::PlatformDelegate() = default;
FilePathWatcher::PlatformDelegate::~PlatformDelegate() {
DCHECK(is_cancelled());
}
bool FilePathWatcher::Watch(const FilePath& path,
Type type,
const Callback& callback) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(path.IsAbsolute());
return impl_->Watch(path, type, callback);
}
bool FilePathWatcher::WatchWithOptions(const FilePath& path,
const WatchOptions& options,
const Callback& callback) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(path.IsAbsolute());
return impl_->WatchWithOptions(path, options, callback);
}
bool FilePathWatcher::WatchWithChangeInfo(
const FilePath& path,
const WatchOptions& options,
const CallbackWithChangeInfo& callback) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(path.IsAbsolute());
return impl_->WatchWithChangeInfo(path, options, callback);
}
bool FilePathWatcher::PlatformDelegate::WatchWithOptions(
const FilePath& path,
const WatchOptions& options,
const Callback& callback) {
return Watch(path, options.type, callback);
}
bool FilePathWatcher::PlatformDelegate::WatchWithChangeInfo(
const FilePath& path,
const WatchOptions& options,
const CallbackWithChangeInfo& callback) {
return Watch(path, options.type, base::BindRepeating(callback, ChangeInfo()));
}
FilePathWatcher::FilePathWatcher(std::unique_ptr<PlatformDelegate> delegate) {
DETACH_FROM_SEQUENCE(sequence_checker_);
impl_ = std::move(delegate);
}
} // namespace base
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