READ THE CODE

Inside Bitcoin

The code behind the network, with room to understand it.

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

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

14,340 bytes · SHA-256 35af26436d06b862… · View upstream ↗

1# Copyright 2017 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
5cmake_minimum_required(VERSION 3.22)
6# Keep the version below in sync with the one in db.h
7project(leveldb VERSION 1.22.0 LANGUAGES C CXX)
8
9# C standard can be overridden when this is used as a sub-project.
10if(NOT CMAKE_C_STANDARD)
11  # This project can use C11, but will gracefully decay down to C89.
12  set(CMAKE_C_STANDARD 11)
13  set(CMAKE_C_STANDARD_REQUIRED OFF)
14  set(CMAKE_C_EXTENSIONS OFF)
15endif(NOT CMAKE_C_STANDARD)
16
17# C++ standard can be overridden when this is used as a sub-project.
18if(NOT CMAKE_CXX_STANDARD)
19  # This project requires C++17.
20  set(CMAKE_CXX_STANDARD 17)
21  set(CMAKE_CXX_STANDARD_REQUIRED ON)
22  set(CMAKE_CXX_EXTENSIONS OFF)
23endif(NOT CMAKE_CXX_STANDARD)
24
25if (WIN32)
26  set(LEVELDB_PLATFORM_NAME LEVELDB_PLATFORM_WINDOWS)
27  # TODO(cmumford): Make UNICODE configurable for Windows.
28  add_definitions(-D_UNICODE -DUNICODE)
29else (WIN32)
30  set(LEVELDB_PLATFORM_NAME LEVELDB_PLATFORM_POSIX)
31endif (WIN32)
32
33option(LEVELDB_BUILD_TESTS "Build LevelDB's unit tests" ON)
34option(LEVELDB_BUILD_BENCHMARKS "Build LevelDB's benchmarks" ON)
35option(LEVELDB_INSTALL "Install LevelDB's header and library" ON)
36
37include(CheckIncludeFile)
38check_include_file("unistd.h" HAVE_UNISTD_H)
39
40include(CheckLibraryExists)
41check_library_exists(crc32c crc32c_value "" HAVE_CRC32C)
42check_library_exists(snappy snappy_compress "" HAVE_SNAPPY)
43check_library_exists(tcmalloc malloc "" HAVE_TCMALLOC)
44
45include(CheckCXXSymbolExists)
46# Using check_cxx_symbol_exists() instead of check_c_symbol_exists() because
47# we're including the header from C++, and feature detection should use the same
48# compiler language that the project will use later. Principles aside, some
49# versions of do not expose fdatasync() in <unistd.h> in standard C mode
50# (-std=c11), but do expose the function in standard C++ mode (-std=c++11).
51check_cxx_symbol_exists(fdatasync "unistd.h" HAVE_FDATASYNC)
52check_cxx_symbol_exists(F_FULLFSYNC "fcntl.h" HAVE_FULLFSYNC)
53check_cxx_symbol_exists(O_CLOEXEC "fcntl.h" HAVE_O_CLOEXEC)
54
55if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
56  # Disable C++ exceptions.
57  string(REGEX REPLACE "/EH[a-z]+" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
58  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHs-c-")
59  add_definitions(-D_HAS_EXCEPTIONS=0)
60
61  # Disable RTTI.
62  string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
63  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-")
64else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
65  # Enable strict prototype warnings for C code in clang and gcc.
66  if(NOT CMAKE_C_FLAGS MATCHES "-Wstrict-prototypes")
67    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wstrict-prototypes")
68  endif(NOT CMAKE_C_FLAGS MATCHES "-Wstrict-prototypes")
69
70  # Disable C++ exceptions.
71  string(REGEX REPLACE "-fexceptions" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
72  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
73
74  # Disable RTTI.
75  string(REGEX REPLACE "-frtti" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
76  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
77endif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
78
79# Test whether -Wthread-safety is available. See
80# https://clang.llvm.org/docs/ThreadSafetyAnalysis.html
81include(CheckCXXCompilerFlag)
82check_cxx_compiler_flag(-Wthread-safety HAVE_CLANG_THREAD_SAFETY)
83
84include(CheckCXXSourceCompiles)
85
86# Test whether C++17 __has_include is available.
87check_cxx_source_compiles("
88#if defined(__has_include) &&  __has_include(<string>)
89#include <string>
90#endif
91int main() { std::string str; return 0; }
92" HAVE_CXX17_HAS_INCLUDE)
93
94set(LEVELDB_PUBLIC_INCLUDE_DIR "include/leveldb")
95set(LEVELDB_PORT_CONFIG_DIR "include/port")
96
97configure_file(
98  "port/port_config.h.in"
99  "${PROJECT_BINARY_DIR}/${LEVELDB_PORT_CONFIG_DIR}/port_config.h"
100)
101
102include_directories(
103  "${PROJECT_BINARY_DIR}/include"
104  "."
105)
106
107if(BUILD_SHARED_LIBS)
108  # Only export LEVELDB_EXPORT symbols from the shared library.
109  add_compile_options(-fvisibility=hidden)
110endif(BUILD_SHARED_LIBS)
111
112# Must be included before CMAKE_INSTALL_INCLUDEDIR is used.
113include(GNUInstallDirs)
114
115add_library(leveldb "")
116target_sources(leveldb
117  PRIVATE
118    "${PROJECT_BINARY_DIR}/${LEVELDB_PORT_CONFIG_DIR}/port_config.h"
119    "db/builder.cc"
120    "db/builder.h"
121    "db/c.cc"
122    "db/db_impl.cc"
123    "db/db_impl.h"
124    "db/db_iter.cc"
125    "db/db_iter.h"
126    "db/dbformat.cc"
127    "db/dbformat.h"
128    "db/dumpfile.cc"
129    "db/filename.cc"
130    "db/filename.h"
131    "db/log_format.h"
132    "db/log_reader.cc"
133    "db/log_reader.h"
134    "db/log_writer.cc"
135    "db/log_writer.h"
136    "db/memtable.cc"
137    "db/memtable.h"
138    "db/repair.cc"
139    "db/skiplist.h"
140    "db/snapshot.h"
141    "db/table_cache.cc"
142    "db/table_cache.h"
143    "db/version_edit.cc"
144    "db/version_edit.h"
145    "db/version_set.cc"
146    "db/version_set.h"
147    "db/write_batch_internal.h"
148    "db/write_batch.cc"
149    "port/port_stdcxx.h"
150    "port/port.h"
151    "port/thread_annotations.h"
152    "table/block_builder.cc"
153    "table/block_builder.h"
154    "table/block.cc"
155    "table/block.h"
156    "table/filter_block.cc"
157    "table/filter_block.h"
158    "table/format.cc"
159    "table/format.h"
160    "table/iterator_wrapper.h"
161    "table/iterator.cc"
162    "table/merger.cc"
163    "table/merger.h"
164    "table/table_builder.cc"
165    "table/table.cc"
166    "table/two_level_iterator.cc"
167    "table/two_level_iterator.h"
168    "util/arena.cc"
169    "util/arena.h"
170    "util/bloom.cc"
171    "util/cache.cc"
172    "util/coding.cc"
173    "util/coding.h"
174    "util/comparator.cc"
175    "util/crc32c.cc"
176    "util/crc32c.h"
177    "util/env.cc"
178    "util/filter_policy.cc"
179    "util/hash.cc"
180    "util/hash.h"
181    "util/logging.cc"
182    "util/logging.h"
183    "util/mutexlock.h"
184    "util/no_destructor.h"
185    "util/options.cc"
186    "util/random.h"
187    "util/status.cc"
188
189  # Only CMake 3.3+ supports PUBLIC sources in targets exported by "install".
190  $<$<VERSION_GREATER:CMAKE_VERSION,3.2>:PUBLIC>
191    "${LEVELDB_PUBLIC_INCLUDE_DIR}/c.h"
192    "${LEVELDB_PUBLIC_INCLUDE_DIR}/cache.h"
193    "${LEVELDB_PUBLIC_INCLUDE_DIR}/comparator.h"
194    "${LEVELDB_PUBLIC_INCLUDE_DIR}/db.h"
195    "${LEVELDB_PUBLIC_INCLUDE_DIR}/dumpfile.h"
196    "${LEVELDB_PUBLIC_INCLUDE_DIR}/env.h"
197    "${LEVELDB_PUBLIC_INCLUDE_DIR}/export.h"
198    "${LEVELDB_PUBLIC_INCLUDE_DIR}/filter_policy.h"
199    "${LEVELDB_PUBLIC_INCLUDE_DIR}/iterator.h"
200    "${LEVELDB_PUBLIC_INCLUDE_DIR}/options.h"
201    "${LEVELDB_PUBLIC_INCLUDE_DIR}/slice.h"
202    "${LEVELDB_PUBLIC_INCLUDE_DIR}/status.h"
203    "${LEVELDB_PUBLIC_INCLUDE_DIR}/table_builder.h"
204    "${LEVELDB_PUBLIC_INCLUDE_DIR}/table.h"
205    "${LEVELDB_PUBLIC_INCLUDE_DIR}/write_batch.h"
206)
207
208if (WIN32)
209  target_sources(leveldb
210    PRIVATE
211      "util/env_windows.cc"
212      "util/windows_logger.h"
213  )
214else (WIN32)
215  target_sources(leveldb
216    PRIVATE
217      "util/env_posix.cc"
218      "util/posix_logger.h"
219  )
220endif (WIN32)
221
222# MemEnv is not part of the interface and could be pulled to a separate library.
223target_sources(leveldb
224  PRIVATE
225    "helpers/memenv/memenv.cc"
226    "helpers/memenv/memenv.h"
227)
228
229target_include_directories(leveldb
230  PUBLIC
231    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
232    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
233)
234
235set_target_properties(leveldb
236  PROPERTIES VERSION ${PROJECT_VERSION} SOVERSION ${PROJECT_VERSION_MAJOR})
237
238target_compile_definitions(leveldb
239  PRIVATE
240    # Used by include/export.h when building shared libraries.
241    LEVELDB_COMPILE_LIBRARY
242    # Used by port/port.h.
243    ${LEVELDB_PLATFORM_NAME}=1
244)
245if (NOT HAVE_CXX17_HAS_INCLUDE)
246  target_compile_definitions(leveldb
247    PRIVATE
248      LEVELDB_HAS_PORT_CONFIG_H=1
249  )
250endif(NOT HAVE_CXX17_HAS_INCLUDE)

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

Independent explanations by MyBitcoinExplorer. Not affiliated with or endorsed by Bitcoin Core. Guides are educational and do not replace the source or its tests.

Bitcoin Core source © its contributors, distributed under the MIT license. Original notices and bundled third-party licenses are retained in the source tree.