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
#![forbid(unsafe_code)]
use crate::{
execution_strategies::types::{Block, Executor, ExecutorResult, PartitionStrategy},
executor::FakeExecutor,
};
use diem_types::{transaction::SignedTransaction, vm_status::VMStatus};
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum AnnotatedTransaction {
Block,
Txn(Box<SignedTransaction>),
}
#[derive(Debug, Clone)]
pub struct PartitionedGuidedStrategy;
impl PartitionStrategy for PartitionedGuidedStrategy {
type Txn = AnnotatedTransaction;
fn partition(&mut self, block: Block<Self::Txn>) -> Vec<Block<SignedTransaction>> {
block
.split(|atxn| atxn == &AnnotatedTransaction::Block)
.map(move |block| {
block
.iter()
.map(move |atxn| match atxn {
AnnotatedTransaction::Block => unreachable!(),
AnnotatedTransaction::Txn(txn) => *txn.clone(),
})
.collect()
})
.collect()
}
}
#[derive(Debug, Clone)]
pub struct UnPartitionedGuidedStrategy;
impl PartitionStrategy for UnPartitionedGuidedStrategy {
type Txn = AnnotatedTransaction;
fn partition(&mut self, block: Block<Self::Txn>) -> Vec<Block<SignedTransaction>> {
vec![block
.into_iter()
.filter_map(|atxn| match atxn {
AnnotatedTransaction::Block => None,
AnnotatedTransaction::Txn(txn) => Some(*txn),
})
.collect()]
}
}
pub struct GuidedExecutor<Strategy: PartitionStrategy> {
strategy: Strategy,
executor: FakeExecutor,
}
impl<Strategy: PartitionStrategy> GuidedExecutor<Strategy> {
pub fn new(strategy: Strategy) -> Self {
Self {
strategy,
executor: FakeExecutor::from_genesis_file(),
}
}
}
impl<Strategy: PartitionStrategy> Executor for GuidedExecutor<Strategy> {
type Txn = Strategy::Txn;
type BlockResult = VMStatus;
fn execute_block(&mut self, block: Block<Self::Txn>) -> ExecutorResult<Self::BlockResult> {
let mut outputs = vec![];
for block in self.strategy.partition(block).into_iter() {
outputs.extend(
self.executor
.execute_block(block)?
.into_iter()
.map(|output| {
self.executor.apply_write_set(output.write_set());
output
}),
)
}
Ok(outputs)
}
}