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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_PUBLIC_UTIL_SYNCER_ERROR_H_
#define SYNC_INTERNAL_API_PUBLIC_UTIL_SYNCER_ERROR_H_
namespace syncer {
// This enum describes all the ways a SyncerCommand can fail.
//
// SyncerCommands do many different things, but they share a common function
// signature. This enum, the return value for all SyncerCommands, must be able
// to describe any possible failure for all SyncerComand.
//
// For convenience, functions which are invoked only by SyncerCommands may also
// return a SyncerError. It saves us having to write a conversion function, and
// it makes refactoring easier.
enum SyncerError {
UNSET = 0, // Default value.
CANNOT_DO_WORK, // A model worker could not process a work item.
NETWORK_CONNECTION_UNAVAILABLE, // Connectivity failure.
NETWORK_IO_ERROR, // Response buffer read error.
SYNC_SERVER_ERROR, // Non auth HTTP error.
SYNC_AUTH_ERROR, // HTTP auth error.
// Based on values returned by server. Most are defined in sync.proto.
SERVER_RETURN_INVALID_CREDENTIAL,
FIRST_SERVER_RETURN_VALUE = SERVER_RETURN_INVALID_CREDENTIAL,
SERVER_RETURN_UNKNOWN_ERROR,
SERVER_RETURN_THROTTLED,
SERVER_RETURN_TRANSIENT_ERROR,
SERVER_RETURN_MIGRATION_DONE,
SERVER_RETURN_CLEAR_PENDING,
SERVER_RETURN_NOT_MY_BIRTHDAY,
SERVER_RETURN_CONFLICT,
SERVER_RESPONSE_VALIDATION_FAILED,
SYNCER_OK
};
const char * GetSyncerErrorString(SyncerError);
// Helper to check that |error| is set to something (not UNSET) and is not
// SYNCER_OK.
bool SyncerErrorIsError(SyncerError error);
} // namespace syncer
#endif // SYNC_INTERNAL_API_PUBLIC_UTIL_SYNCER_ERROR_H_
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