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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_XDS_XDS_LOAD_BALANCER_API_H
#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_XDS_XDS_LOAD_BALANCER_API_H
#include <grpc/support/port_platform.h>
#include <grpc/slice_buffer.h>
#include "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
#include "src/core/ext/filters/client_channel/lb_policy/xds/xds_client_stats.h"
#include "src/core/lib/iomgr/exec_ctx.h"
#define XDS_SERVICE_NAME_MAX_LENGTH 128
typedef grpc_lb_v1_Server_ip_address_t xds_grpclb_ip_address;
typedef grpc_lb_v1_LoadBalanceRequest xds_grpclb_request;
typedef grpc_lb_v1_InitialLoadBalanceResponse xds_grpclb_initial_response;
typedef grpc_lb_v1_Server xds_grpclb_server;
typedef google_protobuf_Duration xds_grpclb_duration;
typedef google_protobuf_Timestamp xds_grpclb_timestamp;
typedef struct {
xds_grpclb_server** servers;
size_t num_servers;
} xds_grpclb_serverlist;
/** Create a request for a gRPC LB service under \a lb_service_name */
xds_grpclb_request* xds_grpclb_request_create(const char* lb_service_name);
xds_grpclb_request* xds_grpclb_load_report_request_create_locked(
grpc_core::XdsLbClientStats* client_stats);
/** Protocol Buffers v3-encode \a request */
grpc_slice xds_grpclb_request_encode(const xds_grpclb_request* request);
/** Destroy \a request */
void xds_grpclb_request_destroy(xds_grpclb_request* request);
/** Parse (ie, decode) the bytes in \a encoded_xds_grpclb_response as a \a
* xds_grpclb_initial_response */
xds_grpclb_initial_response* xds_grpclb_initial_response_parse(
grpc_slice encoded_xds_grpclb_response);
/** Parse the list of servers from an encoded \a xds_grpclb_response */
xds_grpclb_serverlist* xds_grpclb_response_parse_serverlist(
grpc_slice encoded_xds_grpclb_response);
/** Return a copy of \a sl. The caller is responsible for calling \a
* xds_grpclb_destroy_serverlist on the returned copy. */
xds_grpclb_serverlist* xds_grpclb_serverlist_copy(
const xds_grpclb_serverlist* sl);
bool xds_grpclb_serverlist_equals(const xds_grpclb_serverlist* lhs,
const xds_grpclb_serverlist* rhs);
bool xds_grpclb_server_equals(const xds_grpclb_server* lhs,
const xds_grpclb_server* rhs);
/** Destroy \a serverlist */
void xds_grpclb_destroy_serverlist(xds_grpclb_serverlist* serverlist);
/** Compare \a lhs against \a rhs and return 0 if \a lhs and \a rhs are equal,
* < 0 if \a lhs represents a duration shorter than \a rhs and > 0 otherwise */
int xds_grpclb_duration_compare(const xds_grpclb_duration* lhs,
const xds_grpclb_duration* rhs);
grpc_millis xds_grpclb_duration_to_millis(xds_grpclb_duration* duration_pb);
/** Destroy \a initial_response */
void xds_grpclb_initial_response_destroy(xds_grpclb_initial_response* response);
#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_XDS_XDS_LOAD_BALANCER_API_H \
*/
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