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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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bitcoin / bitcoinstable

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▤ allocator_tests.cpp

▤ amount_tests.cpp

▤ argsman_tests.cpp

▤ arith_uint256_tests.cpp

▤ baseindex_tests.cpp

▤ blockchain_tests.cpp

▤ blockencodings_tests.cpp

▤ blockfilter_index_tests.cpp

▤ blockfilter_tests.cpp

▤ blockmanager_tests.cpp

▤ blockpolicyestimator_tests.cpp

▤ bloom_tests.cpp

▤ bswap_tests.cpp

▤ btcsignals_tests.cpp

▤ caches_tests.cpp

▤ chain_tests.cpp

▤ chainstate_write_tests.cpp

▤ checkqueue_tests.cpp

▤ cluster_linearize_tests.cpp

▤ CMakeLists.txt

▤ coins_tests.cpp

▤ coinscachepair_tests.cpp

▤ coinstatsindex_tests.cpp

▤ coinsviewoverlay_tests.cpp

▤ common_url_tests.cpp

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▤ dbwrapper_tests.cpp

▤ denialofservice_tests.cpp

▤ descriptor_tests.cpp

▤ disconnected_transactions.cpp

▤ feefrac_tests.cpp

▤ feerounder_tests.cpp

▤ fees_util_tests.cpp

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▤ httpserver_tests.cpp

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▤ interfaces_tests.cpp

▤ mempool_fee_estimator_tests.cpp

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▤ miner_tests.cpp

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▤ net_peer_connection_tests.cpp

▤ net_peer_eviction_tests.cpp

▤ net_tests.cpp

▤ netbase_tests.cpp

▤ node_init_tests.cpp

▤ node_warnings_tests.cpp

▤ orphanage_tests.cpp

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bitcoin / src / test / btcsignals_tests.cpp

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1// Copyright (c) The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5#include <test/util/setup_common.h>
6#include <util/btcsignals.h>
7
8#include <boost/test/unit_test.hpp>
9
10#include <semaphore>
11
12namespace {
13
14
15void IncrementCallback(int& val)
16{
17    val++;
18}
19void SquareCallback(int& val)
20{
21    val *= val;
22}
23
24bool ReturnTrue()
25{
26    return true;
27}
28bool ReturnFalse()
29{
30    return false;
31}
32
33} // anonymous namespace
34
35BOOST_FIXTURE_TEST_SUITE(btcsignals_tests, BasicTestingSetup)
36
37/* Callbacks should always be executed in the order in which they were added
38 */
39BOOST_AUTO_TEST_CASE(callback_order)
40{
41    btcsignals::signal<void(int&)> sig0;
42    sig0.connect(IncrementCallback);
43    sig0.connect(SquareCallback);
44    int val{3};
45    sig0(val);
46    BOOST_CHECK_EQUAL(val, 16);
47    BOOST_CHECK(!sig0.empty());
48}
49
50BOOST_AUTO_TEST_CASE(disconnects)
51{
52    btcsignals::signal<void(int&)> sig0;
53    auto conn0 = sig0.connect(IncrementCallback);
54    auto conn1 = sig0.connect(SquareCallback);
55    conn1.disconnect();
56    BOOST_CHECK(!sig0.empty());
57    int val{3};
58    sig0(val);
59    BOOST_CHECK_EQUAL(val, 4);
60
61    BOOST_CHECK(!sig0.empty());
62    conn0.disconnect();
63    BOOST_CHECK(sig0.empty());
64    sig0(val);
65    BOOST_CHECK_EQUAL(val, 4);
66
67    conn0 = sig0.connect(IncrementCallback);
68    conn1 = sig0.connect(IncrementCallback);
69    BOOST_CHECK(!sig0.empty());
70    sig0(val);
71    BOOST_CHECK_EQUAL(val, 6);
72    conn1.disconnect();
73
74    BOOST_CHECK(conn0.connected());
75    {
76        btcsignals::scoped_connection scope(conn0);
77    }
78    BOOST_CHECK(!conn0.connected());
79    BOOST_CHECK(sig0.empty());
80    sig0(val);
81    BOOST_CHECK_EQUAL(val, 6);
82}
83
84BOOST_AUTO_TEST_CASE(any_of_combiner)
85{
86    btcsignals::signal<bool(), btcsignals::any_of> sig0;
87    decltype(sig0)::result_type ret;
88    ret = sig0();
89    BOOST_CHECK_EQUAL(ret, false);
90    {
91        btcsignals::scoped_connection conn0{sig0.connect(ReturnTrue)};
92        ret = sig0();
93        BOOST_CHECK_EQUAL(ret, true);
94    }
95    ret = sig0();
96    BOOST_CHECK_EQUAL(ret, false);
97    {
98        btcsignals::scoped_connection conn0{sig0.connect(ReturnTrue)};
99        btcsignals::scoped_connection conn1{sig0.connect(ReturnFalse)};
100        ret = sig0();
101        BOOST_CHECK_EQUAL(ret, true);
102        conn0.disconnect();
103        ret = sig0();
104        BOOST_CHECK_EQUAL(ret, false);
105    }
106    ret = sig0();
107    BOOST_CHECK_EQUAL(ret, false);
108}
109
110/* Test the thread-safety of connect/disconnect/empty/connected/callbacks.
111 * Connect sig0 to an incrementor function and loop in a thread.
112 * Meanwhile, in another thread, inject and call new increment callbacks.
113 * Both threads are constantly calling empty/connected.
114 * The end-result must be deterministic for the atomic modified by conn0.
115 * Though, the end-result for the atomic modified by the extra connections is
116 * undefined due to a non-deterministic number of total callbacks executed.
117 * In any case, this should all be completely threadsafe.
118 * Sanitizers should pick up any buggy data race behavior (if present).
119 */
120BOOST_AUTO_TEST_CASE(thread_safety)
121{
122    btcsignals::signal<void()> sig0;
123    std::atomic<uint32_t> val_det{0};
124    std::atomic<uint32_t> val_non_det{0};
125    auto conn0 = sig0.connect([&val_det] { val_det++; });
126
127    std::thread incrementor([&conn0, &sig0] {
128        for (int i = 0; i < 1000; i++) {
129            sig0();
130        }
131        // Because these calls are purposely happening on both threads at the
132        // same time, these must be asserts rather than BOOST_CHECKs to prevent
133        // a race inside of BOOST_CHECK itself (writing to the log).
134        assert(!sig0.empty());
135        assert(conn0.connected());
136    });
137
138    std::thread extra_increment_injector([&conn0, &sig0, &val_non_det] {
139        static constexpr size_t num_extra_conns{1000};
140        std::vector<btcsignals::scoped_connection> extra_conns;
141        extra_conns.reserve(num_extra_conns);
142        for (size_t i = 0; i < num_extra_conns; i++) {
143            BOOST_CHECK(!sig0.empty());
144            BOOST_CHECK(conn0.connected());
145            btcsignals::scoped_connection extra{sig0.connect([&val_non_det] { val_non_det++; })};
146            if (i % 2 == 0) {
147                extra_conns.emplace_back(std::move(extra));
148            }
149            sig0();
150        }
151    });
152    incrementor.join();
153    extra_increment_injector.join();
154    conn0.disconnect();
155    BOOST_CHECK(sig0.empty());
156
157    // sig0 will have been called 2000 times, and only the first connection did
158    // increment val_det, so it must be 2000.
159    BOOST_CHECK_EQUAL(val_det.load(), 2000);
160    // The number of connections that increment val_non_det is growing from 1
161    // to 500, where 500 are disconnected immediately again after the step.
162    // Before the end of each step the connections are called at least once.
163    // However, it is unknown how often the connections have been called
164    // exactly. The 500th Triangular Number gives a lower estimate.
165    // T_n=n(n+1)/2
166    BOOST_CHECK_GE(val_non_det.load(), 500 * 501 / 2);
167}
168
169/* Test that connection and disconnection works from within signal
170 * callbacks.
171 */
172BOOST_AUTO_TEST_CASE(recursion_safety)
173{
174    btcsignals::connection conn0, conn1, conn2;
175    btcsignals::signal<void()> sig0;
176    bool nonrecursive_callback_ran{false};
177    bool recursive_callback_ran{false};
178
179    conn0 = sig0.connect([&] {
180        BOOST_CHECK(!sig0.empty());
181        nonrecursive_callback_ran = true;
182    });
183    BOOST_CHECK(!nonrecursive_callback_ran);
184    sig0();
185    BOOST_CHECK(nonrecursive_callback_ran);
186    BOOST_CHECK(conn0.connected());
187
188    nonrecursive_callback_ran = false;
189    conn1 = sig0.connect([&] {
190        nonrecursive_callback_ran = true;
191        conn1.disconnect();
192    });
193    BOOST_CHECK(!nonrecursive_callback_ran);
194    BOOST_CHECK(conn0.connected());
195    BOOST_CHECK(conn1.connected());
196    sig0();
197    BOOST_CHECK(nonrecursive_callback_ran);
198    BOOST_CHECK(conn0.connected());
199    BOOST_CHECK(!conn1.connected());
200
201    nonrecursive_callback_ran = false;
202    conn1 = sig0.connect([&] {
203        conn2 = sig0.connect([&] {
204            BOOST_CHECK(conn0.connected());
205            recursive_callback_ran = true;
206            conn0.disconnect();
207            conn2.disconnect();
208        });
209        nonrecursive_callback_ran = true;
210        conn1.disconnect();
211    });
212    BOOST_CHECK(!nonrecursive_callback_ran);
213    BOOST_CHECK(!recursive_callback_ran);
214    BOOST_CHECK(conn0.connected());
215    BOOST_CHECK(conn1.connected());
216    BOOST_CHECK(!conn2.connected());
217    sig0();
218    BOOST_CHECK(nonrecursive_callback_ran);
219    BOOST_CHECK(!recursive_callback_ran);
220    BOOST_CHECK(conn0.connected());
221    BOOST_CHECK(!conn1.connected());
222    BOOST_CHECK(conn2.connected());
223    sig0();
224    BOOST_CHECK(recursive_callback_ran);
225    BOOST_CHECK(!conn0.connected());
226    BOOST_CHECK(!conn1.connected());
227    BOOST_CHECK(!conn2.connected());
228}
229
230/* Test that disconnection from another thread works in real time
231 */
232BOOST_AUTO_TEST_CASE(disconnect_thread_safety)
233{
234    btcsignals::connection conn0, conn1, conn2;
235    btcsignals::signal<void(int&)> sig0;
236    std::binary_semaphore done1{0};
237    std::binary_semaphore done2{0};
238    int val{0};
239
240    conn0 = sig0.connect([&](int&) {
241        conn1.disconnect();
242        done1.release();
243        done2.acquire();
244    });
245    conn1 = sig0.connect(IncrementCallback);
246    conn2 = sig0.connect(IncrementCallback);
247    std::thread thr([&] {
248        done1.acquire();
249        conn2.disconnect();
250        done2.release();

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cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

Code page 1Next 250 lines →

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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