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
158
|
// Copyright (c) 2019-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
//
#include <chainparams.h>
#include <consensus/validation.h>
#include <random.h>
#include <sync.h>
#include <test/util/setup_common.h>
#include <uint256.h>
#include <validation.h>
#include <validationinterface.h>
#include <vector>
#include <boost/test/unit_test.hpp>
BOOST_FIXTURE_TEST_SUITE(validation_chainstatemanager_tests, ChainTestingSetup)
//! Basic tests for ChainstateManager.
//!
//! First create a legacy (IBD) chainstate, then create a snapshot chainstate.
BOOST_AUTO_TEST_CASE(chainstatemanager)
{
ChainstateManager& manager = *m_node.chainman;
CTxMemPool& mempool = *m_node.mempool;
std::vector<CChainState*> chainstates;
const CChainParams& chainparams = Params();
// Create a legacy (IBD) chainstate.
//
CChainState& c1 = *WITH_LOCK(::cs_main, return &manager.InitializeChainstate(mempool));
chainstates.push_back(&c1);
c1.InitCoinsDB(
/* cache_size_bytes */ 1 << 23, /* in_memory */ true, /* should_wipe */ false);
WITH_LOCK(::cs_main, c1.InitCoinsCache(1 << 23));
BOOST_CHECK(!manager.IsSnapshotActive());
BOOST_CHECK(!manager.IsSnapshotValidated());
BOOST_CHECK(!manager.IsBackgroundIBD(&c1));
auto all = manager.GetAll();
BOOST_CHECK_EQUAL_COLLECTIONS(all.begin(), all.end(), chainstates.begin(), chainstates.end());
auto& active_chain = manager.ActiveChain();
BOOST_CHECK_EQUAL(&active_chain, &c1.m_chain);
BOOST_CHECK_EQUAL(manager.ActiveHeight(), -1);
auto active_tip = manager.ActiveTip();
auto exp_tip = c1.m_chain.Tip();
BOOST_CHECK_EQUAL(active_tip, exp_tip);
auto& validated_cs = manager.ValidatedChainstate();
BOOST_CHECK_EQUAL(&validated_cs, &c1);
// Create a snapshot-based chainstate.
//
CChainState& c2 = *WITH_LOCK(::cs_main, return &manager.InitializeChainstate(mempool, GetRandHash()));
chainstates.push_back(&c2);
c2.InitCoinsDB(
/* cache_size_bytes */ 1 << 23, /* in_memory */ true, /* should_wipe */ false);
WITH_LOCK(::cs_main, c2.InitCoinsCache(1 << 23));
// Unlike c1, which doesn't have any blocks. Gets us different tip, height.
c2.LoadGenesisBlock(chainparams);
BlockValidationState _;
BOOST_CHECK(c2.ActivateBestChain(_, chainparams, nullptr));
BOOST_CHECK(manager.IsSnapshotActive());
BOOST_CHECK(!manager.IsSnapshotValidated());
BOOST_CHECK(manager.IsBackgroundIBD(&c1));
BOOST_CHECK(!manager.IsBackgroundIBD(&c2));
auto all2 = manager.GetAll();
BOOST_CHECK_EQUAL_COLLECTIONS(all2.begin(), all2.end(), chainstates.begin(), chainstates.end());
auto& active_chain2 = manager.ActiveChain();
BOOST_CHECK_EQUAL(&active_chain2, &c2.m_chain);
BOOST_CHECK_EQUAL(manager.ActiveHeight(), 0);
auto active_tip2 = manager.ActiveTip();
auto exp_tip2 = c2.m_chain.Tip();
BOOST_CHECK_EQUAL(active_tip2, exp_tip2);
// Ensure that these pointers actually correspond to different
// CCoinsViewCache instances.
BOOST_CHECK(exp_tip != exp_tip2);
auto& validated_cs2 = manager.ValidatedChainstate();
BOOST_CHECK_EQUAL(&validated_cs2, &c1);
auto& validated_chain = manager.ValidatedChain();
BOOST_CHECK_EQUAL(&validated_chain, &c1.m_chain);
auto validated_tip = manager.ValidatedTip();
exp_tip = c1.m_chain.Tip();
BOOST_CHECK_EQUAL(validated_tip, exp_tip);
// Let scheduler events finish running to avoid accessing memory that is going to be unloaded
SyncWithValidationInterfaceQueue();
WITH_LOCK(::cs_main, manager.Unload());
}
//! Test rebalancing the caches associated with each chainstate.
BOOST_AUTO_TEST_CASE(chainstatemanager_rebalance_caches)
{
ChainstateManager& manager = *m_node.chainman;
CTxMemPool& mempool = *m_node.mempool;
size_t max_cache = 10000;
manager.m_total_coinsdb_cache = max_cache;
manager.m_total_coinstip_cache = max_cache;
std::vector<CChainState*> chainstates;
// Create a legacy (IBD) chainstate.
//
CChainState& c1 = *WITH_LOCK(cs_main, return &manager.InitializeChainstate(mempool));
chainstates.push_back(&c1);
c1.InitCoinsDB(
/* cache_size_bytes */ 1 << 23, /* in_memory */ true, /* should_wipe */ false);
{
LOCK(::cs_main);
c1.InitCoinsCache(1 << 23);
BOOST_REQUIRE(c1.LoadGenesisBlock(Params()));
c1.CoinsTip().SetBestBlock(InsecureRand256());
manager.MaybeRebalanceCaches();
}
BOOST_CHECK_EQUAL(c1.m_coinstip_cache_size_bytes, max_cache);
BOOST_CHECK_EQUAL(c1.m_coinsdb_cache_size_bytes, max_cache);
// Create a snapshot-based chainstate.
//
CChainState& c2 = *WITH_LOCK(cs_main, return &manager.InitializeChainstate(mempool, GetRandHash()));
chainstates.push_back(&c2);
c2.InitCoinsDB(
/* cache_size_bytes */ 1 << 23, /* in_memory */ true, /* should_wipe */ false);
{
LOCK(::cs_main);
c2.InitCoinsCache(1 << 23);
BOOST_REQUIRE(c2.LoadGenesisBlock(Params()));
c2.CoinsTip().SetBestBlock(InsecureRand256());
manager.MaybeRebalanceCaches();
}
// Since both chainstates are considered to be in initial block download,
// the snapshot chainstate should take priority.
BOOST_CHECK_CLOSE(c1.m_coinstip_cache_size_bytes, max_cache * 0.05, 1);
BOOST_CHECK_CLOSE(c1.m_coinsdb_cache_size_bytes, max_cache * 0.05, 1);
BOOST_CHECK_CLOSE(c2.m_coinstip_cache_size_bytes, max_cache * 0.95, 1);
BOOST_CHECK_CLOSE(c2.m_coinsdb_cache_size_bytes, max_cache * 0.95, 1);
}
BOOST_AUTO_TEST_SUITE_END()
|
