syntax = "proto3";

option objc_class_prefix = "HLW";

package vrrpc;

service vrsrvrpc {
  rpc prepare (prepare_req) returns (empty_resp) {}
  rpc prepare_ok (prepare_ok_req) returns (empty_resp) {}
  rpc commit (commit_req) returns (empty_resp) {}
  rpc get_state(get_state_req) returns (empty_resp) {}
  rpc new_state(new_state_req) returns (empty_resp) {}
}

message get_state_req {
  uint32 view_id = 1;
  uint32 op_num = 2;
  uint32 srv_id = 3;
}

message new_state_req {
  uint32 view_id = 1;
  bytes log_data = 2;
  uint32 op_num = 3;
  uint32 commit_num = 4;
}

message prepare_req {
  uint32 view_id = 1;
  bytes data = 2;
  uint32 op_num = 3;
  uint32 commit_num = 4;
}

message prepare_ok_req {
  uint32 view_id = 1;
  uint32 op_num = 2;
  uint32 srv_id = 3;
}

message commit_req {
  uint32 view_id = 1;
  uint32 commit_num = 2;
}

message empty_resp {

}