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/**
* Copyright 2018 VMware
*
* 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 _HOTSTUFF_CLIENT_H
#define _HOTSTUFF_CLIENT_H
#include "salticidae/msg.h"
#include "hotstuff/type.h"
#include "hotstuff/entity.h"
#include "hotstuff/consensus.h"
namespace hotstuff {
struct MsgReqCmd {
static const opcode_t opcode = 0x4;
DataStream serialized;
command_t cmd;
MsgReqCmd(const Command &cmd) { serialized << cmd; }
MsgReqCmd(DataStream &&s): serialized(std::move(s)) {}
};
struct MsgRespCmd {
static const opcode_t opcode = 0x5;
DataStream serialized;
#if HOTSTUFF_CMD_RESPSIZE > 0
uint8_t payload[HOTSTUFF_CMD_RESPSIZE];
#endif
Finality fin;
MsgRespCmd(const Finality &fin) {
serialized << fin;
#if HOTSTUFF_CMD_RESPSIZE > 0
serialized.put_data(payload, payload + sizeof(payload));
#endif
}
MsgRespCmd(DataStream &&s) {
s >> fin;
}
};
class CommandDummy: public Command {
uint32_t cid;
uint32_t n;
uint256_t hash;
#if HOTSTUFF_CMD_REQSIZE > 0
uint8_t payload[HOTSTUFF_CMD_REQSIZE];
#endif
public:
CommandDummy() {}
~CommandDummy() override {}
CommandDummy(uint32_t cid, uint32_t n):
cid(cid), n(n), hash(salticidae::get_hash(*this)) {}
void serialize(DataStream &s) const override {
s << cid << n;
#if HOTSTUFF_CMD_REQSIZE > 0
s.put_data(payload, payload + sizeof(payload));
#endif
}
void unserialize(DataStream &s) override {
s >> cid >> n;
#if HOTSTUFF_CMD_REQSIZE > 0
auto base = s.get_data_inplace(HOTSTUFF_CMD_REQSIZE);
memmove(payload, base, sizeof(payload));
#endif
hash = salticidae::get_hash(*this);
}
const uint256_t &get_hash() const override {
return hash;
}
bool verify() const override {
return true;
}
};
}
#endif
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