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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

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8,381 bytes · SHA-256 18cc08b18f366996… · View upstream ↗

1// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file. See the AUTHORS file for names of contributors.
4
5#include "leveldb/table.h"
6
7#include "leveldb/cache.h"
8#include "leveldb/comparator.h"
9#include "leveldb/env.h"
10#include "leveldb/filter_policy.h"
11#include "leveldb/options.h"
12#include "table/block.h"
13#include "table/filter_block.h"
14#include "table/format.h"
15#include "table/two_level_iterator.h"
16#include "util/coding.h"
17
18namespace leveldb {
19
20struct Table::Rep {
21  ~Rep() {
22    delete filter;
23    delete[] filter_data;
24    delete index_block;
25  }
26
27  Options options;
28  Status status;
29  RandomAccessFile* file;
30  uint64_t cache_id;
31  FilterBlockReader* filter;
32  const char* filter_data;
33
34  BlockHandle metaindex_handle;  // Handle to metaindex_block: saved from footer
35  Block* index_block;
36};
37
38Status Table::Open(const Options& options, RandomAccessFile* file,
39                   uint64_t size, Table** table) {
40  *table = nullptr;
41  if (size < Footer::kEncodedLength) {
42    return Status::Corruption("file is too short to be an sstable");
43  }
44
45  char footer_space[Footer::kEncodedLength];
46  Slice footer_input;
47  Status s = file->Read(size - Footer::kEncodedLength, Footer::kEncodedLength,
48                        &footer_input, footer_space);
49  if (!s.ok()) return s;
50
51  Footer footer;
52  s = footer.DecodeFrom(&footer_input);
53  if (!s.ok()) return s;
54
55  // Read the index block
56  BlockContents index_block_contents;
57  if (s.ok()) {
58    ReadOptions opt;
59    if (options.paranoid_checks) {
60      opt.verify_checksums = true;
61    }
62    s = ReadBlock(file, opt, footer.index_handle(), &index_block_contents);
63  }
64
65  if (s.ok()) {
66    // We've successfully read the footer and the index block: we're
67    // ready to serve requests.
68    Block* index_block = new Block(index_block_contents);
69    Rep* rep = new Table::Rep;
70    rep->options = options;
71    rep->file = file;
72    rep->metaindex_handle = footer.metaindex_handle();
73    rep->index_block = index_block;
74    rep->cache_id = (options.block_cache ? options.block_cache->NewId() : 0);
75    rep->filter_data = nullptr;
76    rep->filter = nullptr;
77    *table = new Table(rep);
78    (*table)->ReadMeta(footer);
79  }
80
81  return s;
82}
83
84void Table::ReadMeta(const Footer& footer) {
85  if (rep_->options.filter_policy == nullptr) {
86    return;  // Do not need any metadata
87  }
88
89  // TODO(sanjay): Skip this if footer.metaindex_handle() size indicates
90  // it is an empty block.
91  ReadOptions opt;
92  if (rep_->options.paranoid_checks) {
93    opt.verify_checksums = true;
94  }
95  BlockContents contents;
96  if (!ReadBlock(rep_->file, opt, footer.metaindex_handle(), &contents).ok()) {
97    // Do not propagate errors since meta info is not needed for operation
98    return;
99  }
100  Block* meta = new Block(contents);
101
102  Iterator* iter = meta->NewIterator(BytewiseComparator());
103  std::string key = "filter.";
104  key.append(rep_->options.filter_policy->Name());
105  iter->Seek(key);
106  if (iter->Valid() && iter->key() == Slice(key)) {
107    ReadFilter(iter->value());
108  }
109  delete iter;
110  delete meta;
111}
112
113void Table::ReadFilter(const Slice& filter_handle_value) {
114  Slice v = filter_handle_value;
115  BlockHandle filter_handle;
116  if (!filter_handle.DecodeFrom(&v).ok()) {
117    return;
118  }
119
120  // We might want to unify with ReadBlock() if we start
121  // requiring checksum verification in Table::Open.
122  ReadOptions opt;
123  if (rep_->options.paranoid_checks) {
124    opt.verify_checksums = true;
125  }
126  BlockContents block;
127  if (!ReadBlock(rep_->file, opt, filter_handle, &block).ok()) {
128    return;
129  }
130  if (block.heap_allocated) {
131    rep_->filter_data = block.data.data();  // Will need to delete later
132  }
133  rep_->filter = new FilterBlockReader(rep_->options.filter_policy, block.data);
134}
135
136Table::~Table() { delete rep_; }
137
138static void DeleteBlock(void* arg, void* ignored) {
139  delete reinterpret_cast<Block*>(arg);
140}
141
142static void DeleteCachedBlock(const Slice& key, void* value) {
143  Block* block = reinterpret_cast<Block*>(value);
144  delete block;
145}
146
147static void ReleaseBlock(void* arg, void* h) {
148  Cache* cache = reinterpret_cast<Cache*>(arg);
149  Cache::Handle* handle = reinterpret_cast<Cache::Handle*>(h);
150  cache->Release(handle);
151}
152
153// Convert an index iterator value (i.e., an encoded BlockHandle)
154// into an iterator over the contents of the corresponding block.
155Iterator* Table::BlockReader(void* arg, const ReadOptions& options,
156                             const Slice& index_value) {
157  Table* table = reinterpret_cast<Table*>(arg);
158  Cache* block_cache = table->rep_->options.block_cache;
159  Block* block = nullptr;
160  Cache::Handle* cache_handle = nullptr;
161
162  BlockHandle handle;
163  Slice input = index_value;
164  Status s = handle.DecodeFrom(&input);
165  // We intentionally allow extra stuff in index_value so that we
166  // can add more features in the future.
167
168  if (s.ok()) {
169    BlockContents contents;
170    if (block_cache != nullptr) {
171      char cache_key_buffer[16];
172      EncodeFixed64(cache_key_buffer, table->rep_->cache_id);
173      EncodeFixed64(cache_key_buffer + 8, handle.offset());
174      Slice key(cache_key_buffer, sizeof(cache_key_buffer));
175      cache_handle = block_cache->Lookup(key);
176      if (cache_handle != nullptr) {
177        block = reinterpret_cast<Block*>(block_cache->Value(cache_handle));
178      } else {
179        s = ReadBlock(table->rep_->file, options, handle, &contents);
180        if (s.ok()) {
181          block = new Block(contents);
182          if (contents.cachable && options.fill_cache) {
183            cache_handle = block_cache->Insert(key, block, block->size(),
184                                               &DeleteCachedBlock);
185          }
186        }
187      }
188    } else {
189      s = ReadBlock(table->rep_->file, options, handle, &contents);
190      if (s.ok()) {
191        block = new Block(contents);
192      }
193    }
194  }
195
196  Iterator* iter;
197  if (block != nullptr) {
198    iter = block->NewIterator(table->rep_->options.comparator);
199    if (cache_handle == nullptr) {
200      iter->RegisterCleanup(&DeleteBlock, block, nullptr);
201    } else {
202      iter->RegisterCleanup(&ReleaseBlock, block_cache, cache_handle);
203    }
204  } else {
205    iter = NewErrorIterator(s);
206  }
207  return iter;
208}
209
210Iterator* Table::NewIterator(const ReadOptions& options) const {
211  return NewTwoLevelIterator(
212      rep_->index_block->NewIterator(rep_->options.comparator),
213      &Table::BlockReader, const_cast<Table*>(this), options);
214}
215
216Status Table::InternalGet(const ReadOptions& options, const Slice& k, void* arg,
217                          void (*handle_result)(void*, const Slice&,
218                                                const Slice&)) {
219  Status s;
220  Iterator* iiter = rep_->index_block->NewIterator(rep_->options.comparator);
221  iiter->Seek(k);
222  if (iiter->Valid()) {
223    Slice handle_value = iiter->value();
224    FilterBlockReader* filter = rep_->filter;
225    BlockHandle handle;
226    if (filter != nullptr && handle.DecodeFrom(&handle_value).ok() &&
227        !filter->KeyMayMatch(handle.offset(), k)) {
228      // Not found
229    } else {
230      Iterator* block_iter = BlockReader(this, options, iiter->value());
231      block_iter->Seek(k);
232      if (block_iter->Valid()) {
233        (*handle_result)(arg, block_iter->key(), block_iter->value());
234      }
235      s = block_iter->status();
236      delete block_iter;
237    }
238  }
239  if (s.ok()) {
240    s = iiter->status();
241  }
242  delete iiter;
243  return s;
244}
245
246uint64_t Table::ApproximateOffsetOf(const Slice& key) const {
247  Iterator* index_iter =
248      rep_->index_block->NewIterator(rep_->options.comparator);
249  index_iter->Seek(key);
250  uint64_t result;

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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