deparser.h

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/* Copyright 2013-present Barefoot Networks, Inc.
 *
 * 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.
 */
 
/*
 * Antonin Bas (antonin@barefootnetworks.com)
 *
 */
 
 
#ifndef BM_BM_SIM_DEPARSER_H_
#define BM_BM_SIM_DEPARSER_H_
 
#include <bm/bm_sim/actions.h>
#include <bm/bm_sim/packet.h>
#include <bm/bm_sim/phv.h>
 
#include <string>
#include <memory>
#include <utility>
#include <vector>
 
#include "named_p4object.h"
#include "phv_forward.h"
#include "stateful.h"
 
namespace bm {
 
class Packet;
 
class Checksum;
 
struct DeparserOp;
 
class Deparser : public NamedP4Object {
 public:
  Deparser(const std::string &name, p4object_id_t id);
 
  void push_back_header(header_id_t header_id) {
    headers.push_back(header_id);
  }
 
  void add_checksum(const Checksum *checksum) {
    checksums.push_back(checksum);
  }
 
  ~Deparser();
 
  void deparse(Packet *pkt) const;
 
  void add_method_call(ActionFn *action_fn);
 
 private:
  size_t get_headers_size(const PHV &phv) const;
 
  void update_checksums(Packet *pkt) const;
 
 private:
  std::vector<header_id_t> headers{};
  std::vector<const Checksum *> checksums{};
  RegisterSync register_sync{};
  std::vector<std::unique_ptr<DeparserOp> > deparser_ops;
};
 
}  // namespace bm
 
#endif  // BM_BM_SIM_DEPARSER_H_