simulacrum/
epoch_state.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
// Copyright (c) Mysten Labs, Inc.
// SPDX-License-Identifier: Apache-2.0

use std::{collections::HashSet, sync::Arc};

use anyhow::Result;
use sui_config::{
    transaction_deny_config::TransactionDenyConfig, verifier_signing_config::VerifierSigningConfig,
};
use sui_execution::Executor;
use sui_protocol_config::{Chain, ProtocolConfig, ProtocolVersion};
use sui_types::{
    committee::{Committee, EpochId},
    effects::TransactionEffects,
    gas::SuiGasStatus,
    inner_temporary_store::InnerTemporaryStore,
    metrics::BytecodeVerifierMetrics,
    metrics::LimitsMetrics,
    sui_system_state::{
        epoch_start_sui_system_state::{EpochStartSystemState, EpochStartSystemStateTrait},
        SuiSystemState, SuiSystemStateTrait,
    },
    transaction::{TransactionDataAPI, VerifiedTransaction},
};

use crate::SimulatorStore;

pub struct EpochState {
    epoch_start_state: EpochStartSystemState,
    committee: Committee,
    protocol_config: ProtocolConfig,
    limits_metrics: Arc<LimitsMetrics>,
    bytecode_verifier_metrics: Arc<BytecodeVerifierMetrics>,
    executor: Arc<dyn Executor + Send + Sync>,
    /// A counter that advances each time we advance the clock in order to ensure that each update
    /// txn has a unique digest. This is reset on epoch changes
    next_consensus_round: u64,
}

impl EpochState {
    pub fn new(system_state: SuiSystemState) -> Self {
        let epoch_start_state = system_state.into_epoch_start_state();
        let committee = epoch_start_state.get_sui_committee();
        let protocol_config =
            ProtocolConfig::get_for_version(epoch_start_state.protocol_version(), Chain::Unknown);
        let registry = prometheus::Registry::new();
        let limits_metrics = Arc::new(LimitsMetrics::new(&registry));
        let bytecode_verifier_metrics = Arc::new(BytecodeVerifierMetrics::new(&registry));
        let executor = sui_execution::executor(&protocol_config, true, None).unwrap();

        Self {
            epoch_start_state,
            committee,
            protocol_config,
            limits_metrics,
            bytecode_verifier_metrics,
            executor,
            next_consensus_round: 0,
        }
    }

    pub fn epoch(&self) -> EpochId {
        self.epoch_start_state.epoch()
    }

    pub fn reference_gas_price(&self) -> u64 {
        self.epoch_start_state.reference_gas_price()
    }

    pub fn next_consensus_round(&mut self) -> u64 {
        let round = self.next_consensus_round;
        self.next_consensus_round += 1;
        round
    }

    pub fn committee(&self) -> &Committee {
        &self.committee
    }

    pub fn epoch_start_state(&self) -> &EpochStartSystemState {
        &self.epoch_start_state
    }

    pub fn protocol_version(&self) -> ProtocolVersion {
        self.protocol_config().version
    }

    pub fn protocol_config(&self) -> &ProtocolConfig {
        &self.protocol_config
    }

    pub fn execute_transaction(
        &self,
        store: &dyn SimulatorStore,
        deny_config: &TransactionDenyConfig,
        verifier_signing_config: &VerifierSigningConfig,
        transaction: &VerifiedTransaction,
    ) -> Result<(
        InnerTemporaryStore,
        SuiGasStatus,
        TransactionEffects,
        Result<(), sui_types::error::ExecutionError>,
    )> {
        let tx_digest = *transaction.digest();
        let tx_data = &transaction.data().intent_message().value;
        let input_object_kinds = tx_data.input_objects()?;
        let receiving_object_refs = tx_data.receiving_objects();

        sui_transaction_checks::deny::check_transaction_for_signing(
            tx_data,
            transaction.tx_signatures(),
            &input_object_kinds,
            &receiving_object_refs,
            deny_config,
            &store,
        )?;

        let (input_objects, receiving_objects) = store.read_objects_for_synchronous_execution(
            &tx_digest,
            &input_object_kinds,
            &receiving_object_refs,
        )?;

        // Run the transaction input checks that would run when submitting the txn to a validator
        // for signing
        let (gas_status, checked_input_objects) = sui_transaction_checks::check_transaction_input(
            &self.protocol_config,
            self.epoch_start_state.reference_gas_price(),
            transaction.data().transaction_data(),
            input_objects,
            &receiving_objects,
            &self.bytecode_verifier_metrics,
            verifier_signing_config,
        )?;

        let transaction_data = transaction.data().transaction_data();
        let (kind, signer, gas_data) = transaction_data.execution_parts();
        let (inner_temp_store, gas_status, effects, _timings, result) =
            self.executor.execute_transaction_to_effects(
                store.backing_store(),
                &self.protocol_config,
                self.limits_metrics.clone(),
                false,           // enable_expensive_checks
                &HashSet::new(), // certificate_deny_set
                &self.epoch_start_state.epoch(),
                self.epoch_start_state.epoch_start_timestamp_ms(),
                checked_input_objects,
                gas_data,
                gas_status,
                kind,
                signer,
                tx_digest,
                &mut None,
            );
        Ok((inner_temp_store, gas_status, effects, result))
    }
}