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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/sync_file_system/drive_backend/tracker_id_set.h"
#include "base/check_op.h"
#include "base/containers/contains.h"
#include "chrome/browser/sync_file_system/drive_backend/metadata_database.pb.h"
namespace sync_file_system {
namespace drive_backend {
TrackerIDSet::TrackerIDSet() : active_tracker_(0) {}
TrackerIDSet::TrackerIDSet(const TrackerIDSet& other) = default;
TrackerIDSet::~TrackerIDSet() = default;
void TrackerIDSet::Insert(const FileTracker& tracker) {
if (tracker.active())
InsertActiveTracker(tracker.tracker_id());
else
InsertInactiveTracker(tracker.tracker_id());
}
void TrackerIDSet::InsertActiveTracker(int64_t tracker_id) {
DCHECK(tracker_id);
DCHECK(!active_tracker_);
active_tracker_ = tracker_id;
tracker_ids_.insert(tracker_id);
}
void TrackerIDSet::InsertInactiveTracker(int64_t tracker_id) {
DCHECK(tracker_id);
DCHECK_NE(active_tracker_, tracker_id);
tracker_ids_.insert(tracker_id);
}
void TrackerIDSet::Erase(int64_t tracker_id) {
DCHECK(base::Contains(tracker_ids_, tracker_id));
if (active_tracker_ == tracker_id)
active_tracker_ = 0;
tracker_ids_.erase(tracker_id);
}
void TrackerIDSet::Activate(int64_t tracker_id) {
DCHECK(!active_tracker_);
DCHECK(base::Contains(tracker_ids_, tracker_id));
active_tracker_ = tracker_id;
}
void TrackerIDSet::Deactivate(int64_t tracker_id) {
DCHECK_EQ(active_tracker_, tracker_id);
DCHECK(base::Contains(tracker_ids_, tracker_id));
active_tracker_ = 0;
}
} // namespace drive_backend
} // namespace sync_file_system
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