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// Copyright (c) 2012 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.
#ifndef SYNC_INTERNAL_API_DEBUG_INFO_EVENT_LISTENER_H_
#define SYNC_INTERNAL_API_DEBUG_INFO_EVENT_LISTENER_H_
#include <queue>
#include <string>
#include "base/compiler_specific.h"
#include "sync/internal_api/public/sessions/sync_session_snapshot.h"
#include "sync/internal_api/public/sync_manager.h"
#include "sync/internal_api/public/util/weak_handle.h"
#include "sync/js/js_backend.h"
#include "sync/protocol/sync.pb.h"
#include "sync/sessions/debug_info_getter.h"
#include "sync/sessions/session_state.h"
namespace sync_api {
const unsigned int kMaxEntries = 6;
// Listens to events and records them in a queue. And passes the events to
// syncer when requested.
class DebugInfoEventListener : public sync_api::SyncManager::Observer,
public browser_sync::sessions::DebugInfoGetter {
public:
DebugInfoEventListener();
virtual ~DebugInfoEventListener();
// SyncManager::Observer implementation.
virtual void OnSyncCycleCompleted(
const browser_sync::sessions::SyncSessionSnapshot& snapshot) OVERRIDE;
virtual void OnInitializationComplete(
const browser_sync::WeakHandle<browser_sync::JsBackend>& js_backend,
bool success) OVERRIDE;
virtual void OnConnectionStatusChange(
sync_api::ConnectionStatus connection_status) OVERRIDE;
virtual void OnPassphraseRequired(
sync_api::PassphraseRequiredReason reason,
const sync_pb::EncryptedData& pending_keys) OVERRIDE;
virtual void OnPassphraseAccepted() OVERRIDE;
virtual void OnBootstrapTokenUpdated(
const std::string& bootstrap_token) OVERRIDE;
virtual void OnStopSyncingPermanently() OVERRIDE;
virtual void OnUpdatedToken(const std::string& token) OVERRIDE;
virtual void OnClearServerDataFailed() OVERRIDE;
virtual void OnClearServerDataSucceeded() OVERRIDE;
virtual void OnEncryptedTypesChanged(
syncable::ModelTypeSet encrypted_types,
bool encrypt_everything) OVERRIDE;
virtual void OnEncryptionComplete() OVERRIDE;
virtual void OnActionableError(
const browser_sync::SyncProtocolError& sync_error) OVERRIDE;
// Sync manager events.
void OnNudgeFromDatatype(syncable::ModelType datatype);
void OnIncomingNotification(
const syncable::ModelTypePayloadMap& type_payloads);
// DebugInfoGetter Implementation.
virtual void GetAndClearDebugInfo(sync_pb::DebugInfo* debug_info) OVERRIDE;
// Functions to set cryptographer state.
void SetCrytographerHasPendingKeys(bool pending_keys);
void SetCryptographerReady(bool ready);
private:
FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyEventsAdded);
FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyQueueSize);
FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyGetAndClearEvents);
void AddEventToQueue(const sync_pb::DebugEventInfo& event_info);
void CreateAndAddEvent(sync_pb::DebugEventInfo::EventType type);
std::queue<sync_pb::DebugEventInfo> events_;
// True indicates we had to drop one or more events to keep our limit of
// |kMaxEntries|.
bool events_dropped_;
// Cryptographer has keys that are not yet decrypted.
bool cryptographer_has_pending_keys_;
// Cryptographer is initialized and does not have pending keys.
bool cryptographer_ready_;
DISALLOW_COPY_AND_ASSIGN(DebugInfoEventListener);
};
} // namespace sync_api
#endif // SYNC_INTERNAL_API_DEBUG_INFO_EVENT_LISTENER_H_
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