3a0a5bc [doc] Add hint about getmempoolentry to getrawmempool help. (Karl-Johan Alm)
Tree-SHA512: 8327d7d7ad93296525fbf95b7a824e3525bde84653999f125afd845823eb39e3a03cd39725962ed949aa2b9ad207ecad6d287294fa321ff1a4d7fbd5a4b8560b
0f3471f net: make CNode's id private (Cory Fields)
9ff0a51 scripted-diff: net: Use accessor rather than node's id directly (Cory Fields)
e50c33e devtools: add script to verify scriptable changes (Cory Fields)
Tree-SHA512: a0ff50f4e1d38a2b63109b4996546c91b3e02e00d92c0bf04f48792948f78b1f6d9227a15d25c823fd4723a0277fc6a32c2c1287c7abbb7e50fd82ffb0f8d994
vToFetch is never used after declaration. When checked if not empty,
evaluation is always false. Best case scenario this is optimized by the
compiler, worst case it wastes cpu cycles. It should be removed either
way.
84973d3 Merge #454: Remove residual parts from the schnorr expirement.
5e95bf2 Remove residual parts from the schnorr expirement.
cbc20b8 Merge #452: Minor optimizations to _scalar_inverse to save 4M
4cc8f52 Merge #437: Unroll secp256k1_fe_(get|set)_b32 to make them much faster.
465159c Further shorten the addition chain for scalar inversion.
a2b6b19 Fix benchmark print_number infinite loop.
8b7680a Unroll secp256k1_fe_(get|set)_b32 for 10x26.
aa84990 Unroll secp256k1_fe_(get|set)_b32 for 5x52.
cf12fa1 Minor optimizations to _scalar_inverse to save 4M
1199492 Merge #408: Add `secp256k1_ec_pubkey_negate` and `secp256k1_ec_privkey_negate`
6af0871 Merge #441: secp256k1_context_randomize: document.
ab31a52 Merge #444: test: Use checked_alloc
eda5c1a Merge #449: Remove executable bit from secp256k1.c
51b77ae Remove executable bit from secp256k1.c
5eb030c test: Use checked_alloc
72d952c FIXUP: Missing "is"
70ff29b secp256k1_context_randomize: document.
9d560f9 Merge #428: Exhaustive recovery
8e48aa6 Add `secp256k1_ec_pubkey_negate` and `secp256k1_ec_privkey_negate`
2cee5fd exhaustive tests: add recovery module
678b0e5 exhaustive tests: remove erroneous comment from ecdsa_sig_sign
03ff8c2 group_impl.h: remove unused `secp256k1_ge_set_infinity` function
a724d72 configure: add --enable-coverage to set options for coverage analysis
b595163 recovery: add tests to cover API misusage
6f8ae2f ecdh: test NULL-checking of arguments
25e3cfb ecdsa_impl: replace scalar if-checks with VERIFY_CHECKs in ecdsa_sig_sign
git-subtree-dir: src/secp256k1
git-subtree-split: 84973d393ac240a90b2e1a6538c5368202bc2224
Rather than re-add disconnected block transactions back to the mempool
immediately, store them in a separate disconnectpool for later processing,
because we expect most such transactions to reappear in the chain that is
still to be connected (and thus we can avoid the work of reprocessing those
transactions through the mempool altogether).
a750d77 Add tests for mempool persistence (John Newbery)
91c91e1 Control mempool persistence using a command line parameter. (John Newbery)
Tree-SHA512: 157d01cefd1903b8bfc5cbab42a3cc5e9c1094179bf4b64b3d34c0d4d9b976d593755bfea5c41c631cb758e1de17c6c2058c130d487d20560b7c0bafcddfa520
185c7f0 Avoid reading the old hd master key during wallet encryption (Matt Corallo)
Tree-SHA512: b744e8490c0e948355bb77b2695902bb99f89a68af46aa2be9120bd2ccf3c340eb8a56340fec117f9a935192298028945c9b18120ee6b8b23e7da8ffdb635745
Add test for adding multiple addresses to address manager
Clean up unnecessary modulo operations
Add test for GetNewBucket's alternate method signature
d6732d8 [tests] update disconnect_ban.py test case to work with listbanned (John Newbery)
77c54b2 [net] listbanned RPC and QT should show correct banned subnets (John Newbery)
Tree-SHA512: edd0e43377d456260d2697213c2829f8483630f3a668b6707d52605faefa610d951d10e6f22a95eff483cbd14faa8ac9b69fa7d3c0b5735c5f3df23fd71282e0
7c58863 [Wallet] unset change position when there is no change on exact match (Gregory Sanders)
Tree-SHA512: ce8b9337e4132e32d80f954258d50938052c833a48e39431649d6adb16e3d18626a0ae5d300827e7fa397927fba72a1f066cb31af9b0a3ef7f1feb6024461626
DisconnectBlock currently has a complicated interface:
Situation Return value
pfClean != nullptr pfClean == nullptr
All good: true true
Failure: false false
Unclean rewind: true false
with *pfClean=false
Change this to return a tristate enum instead. As an added bonus,
remove the ValidationState& argument which was unused.
b51aaf1 Remove unused C++ code not covered by unit tests (practicalswift)
Tree-SHA512: 267bbd87df01a296bf23e82a8b6ee968e13e23a6aaecc535d803890a3e3e9f6208c7fc4c1f97afd98ed3e498b12fe1ada7e3cb2977ad12359a813f57336c74e5
dcb69fd [test] Unit test amount.h/amount.cpp (Jimmy Song)
Tree-SHA512: dc50e6158322a282a8b8b60c8eab7ce327a33c48113a1455b8a1784f07e6277ad499e85ec978199468a2dc34e9e288287c8803c215f810fa2d841cdda9a414f5
This adds a simpler new implementation of getbalance logic along with asserts
to confirm it behaves identically to the old logic. The old logic is removed in
the next commit.
1b14449 [test] Add Unit Test for GetListenPort (Jimmy Song)
Tree-SHA512: aea5f60fb3699680cc5acac9d9c8d8712634db9d629bbfa1815a29e5cf46c22f783886c608664baaa91b3282c52ce8069c358850cf4f90acf731a9e6c1701caa
c36ea69 [wallet] Make sure pindex is non-null before possibly referencing in LogPrintf call. (Karl-Johan Alm)
Tree-SHA512: a14c9f3e1228bca91977bea821c56a377d80889b41d250050c9be67aa93e460319a7cf1d4b63ee40f23b5a34159590f0e3fe15dc88698dc694c0c8098bd2db4d
e6756ad Switch CCoinsMap from boost to std unordered_map (Pieter Wuille)
344a2c4 Add support for std::unordered_{map,set} to memusage.h (Pieter Wuille)
Tree-SHA512: 51288301e7c0f29ffac8c59f4cc73ddc36b7abeb764009da6543f2eaeeb9f89bd47dde48131a7e0aefad8f7cb0b74b2f33b8be052c8e8a718339c3e6bb963447
911a480 wallet: Add comment describing the various classes in walletdb.h (Wladimir J. van der Laan)
69d2e9b wallet: Make IsDummy private in CWalletDBWrapper (Wladimir J. van der Laan)
3323281 wallet: CWalletDB CDB composition not inheritance (Wladimir J. van der Laan)
be9e1a9 wallet: Reduce references to global bitdb environment (Wladimir J. van der Laan)
071c955 wallet: Get rid of fFileBacked (Wladimir J. van der Laan)
71afe3c wallet: Introduce database handle wrapper (Wladimir J. van der Laan)
Tree-SHA512: e4e72953c61a2f6995d609a32f8ed8e18cab9a92bc9e193d46a1d1f06d9daa5c6da6fce2867d4e3ba4fc0439141901a3d35f246486f0fa8f59587786379dfcbd
dd07068 Fixed typo in documentation for merkleblock.h (Mikerah)
Tree-SHA512: 92655c8022eb33852c116da517b12bd17b3b668713cd85fe185a15245ea9810605626b1d0955fa117f7b56863e0a52b3a86dab42409332452b5eb72a7d34f30d
Move buckets and bucketMap to be stored as part of overall serialization of estimator.
Add some placeholder data so file format is only changed once.
Maintain 3 different TxConfirmStats with potential for different decays and scales.
68af651 MOVEONLY: move TxConfirmStats to cpp (Alex Morcos)
2332f19 Initialize TxConfirmStats in constructor (Alex Morcos)
5ba81e5 Read and Write fee estimate file directly from CBlockPolicyEstimator (Alex Morcos)
14e10aa Call estimate(Smart)Fee directly from CBlockPolicyEstimator (Alex Morcos)
dbb9e36 Give CBlockPolicyEstimator it's own lock (Alex Morcos)
f6187d6 Make processBlockTx private. (Alex Morcos)
ae7327b Make feeEstimator its own global instance of CBlockPolicyEstimator (Alex Morcos)
Tree-SHA512: dbf3bd2b30822e609a35f3da519b62d23f8a50e564750695ddebd08553b4c01874ae3e07d792c6cc78cc377d2db33b951ffedc46ac7edaf5793f9ebb931713af
CWalletDB now contains a CDB instead of inheriting from it.
This makes it easier to replace the internal transaction with a different
database, without leaking through internals.
Instead, CWalletDB() with a dummy handle will just give you a no-op
database in which writes always succeeds and reads always fail. CDB
already had functionality for this, so just use that.
Abstract database handle from explicit strFilename into
CWalletDBWrapper.
Also move CWallet::Backup to db.cpp - as it deals with representation
details this is a database specific operation.
4082fb0 Add missing <atomic> header in clientmodel.h (Jonas Schnelli)
928d4a9 Set both time/height header caches at the same time (Jonas Schnelli)
610a917 Declare headers height/time cache mutable, re-set the methods const (Jonas Schnelli)
cf92bce Update the remaining blocks left in modaloverlay at init. (Jonas Schnelli)
7148f5e Reduce cs_main locks during modal overlay by adding an atomic cache (Jonas Schnelli)
Tree-SHA512: a92ca22f90b8b2a5e8eb94fdce531ef44542e21a8dbbb0693f7723d7018592cb68de687a2a0aac91d31cbf019793f8e922550656d2b130ed3d854d60630341db
disconnectnode() can currently only be called with the IP address/port
of the node the user wishes to connect. This commit allows the node to
be disconnected using the nodeid returned by getpeerinfo().
608bbcc [qt] Stop treating coinbase outputs differently: show them at 1conf (Matt Corallo)
Tree-SHA512: 62ba10520da8b83cf8e97c86dec3ccdcca8b7bfae0174d1a4099d33aa5d11933cc7c248394bf67c2b105211cf7931955816c741957832e703211030c7f4f002f
a4186dd wallet: Use boost to more portably ensure -wallet specifies only a filename (Luke Dashjr)
Tree-SHA512: 6dfde31fa599638e5ec76489363e2fed97403be3e5762e4560dfc6ac261ce169a92b5a1b92bb34a893cc898e6073c81f74f49528e8df07e86273ddb37dd1ce80
This was a long-standing and annoying problem.
If autogen.sh was not manually run after touching configure.ac,
bitcoin-config.h would not be properly regenerated. This causes very subtle
problems when configure appears to enable a new value, but it does not end up
reflected in the build.
c9e31c3 Clarify importprivkey help text with example of blank label without rescan Occasionally I waste a lot of time not remembering that the second parameter to importprivkey must be blank if you intend to stop rescan with "false" as the third parameter. (Warren Togami)
Tree-SHA512: 23781e1d6fd59a9d06d6e12ad10e8ed6641947b3e4a1f66c8fdb5d44cbd8f291e8f2a5e686aa9f9ba5e4bab8ca688caa17244e837f651546055ddf7cc8e7df8f
Occasionally I waste a lot of time not remembering that the second parameter to importprivkey must be blank if you intend to stop rescan with "false" as the third parameter.
This makes SetHDMasterKey responsible for maintinaing the CHDChain
version instead of always creating it with the latest version and
making EncryptWallet responsible for keeping the version from
changing.
b49ad44 Add comment about cs_most_recent_block coverage (Matt Corallo)
c47f5b7 Cache witness-enabled state with recent-compact-block-cache (Matt Corallo)
efc135f Use cached [compact] blocks to respond to getdata messages (Matt Corallo)
Tree-SHA512: ffc478bddbf14b8ed304a3041f47746520ce545bdeffa9652eff2ccb25c8b0d5194abe72568c10f9c1b246ee361176ba217767af834752a2ca7263d292005e87
This removes another callback from block connection logic, making it
easier to reason about the wallet-RPCs-returns-stale-info issue.
UpdatedTransaction was previously used by the GUI to display
coinbase transactions only after they have a block built on top of
them. This worked fine for in most cases, but only worked due to a
corner case if the user received a coinbase payout in a block
immediately prior to restart. In that case, the normal process of
caching the most recent coinbase transaction's hash would not work,
and instead it would only work because of the on-load -checkblocks
calling DisconnectBlock and ConnectBlock on the current tip.
In order to make this more robust, a full mapWallet loop after the
first block which is connected after restart was added.
c37e32a [Wallet] Prevent CInputCoin to be in a null state (NicolasDorier)
f597dcb [Wallet] Simplify code using CInputCoin (NicolasDorier)
e78bc45 [Wallet] Decouple CInputCoin from CWalletTx (NicolasDorier)
fd44ac1 [Wallet] Rename std::pair<const CWalletTx*, unsigned int> to CInputCoin (NicolasDorier)
Tree-SHA512: d24361fc514a0566bce1c3953d766dfe4fece79c549cb4db2600695a4ce08e85caa61b7717812618e523a2f2a1669877dad2752ed079e2ed2d27249f9bc8590e
d0cd0bd Make CWallet::SyncTransactions() interface friendlier (John Newbery)
714e4ad AddToWalletIfInvolvingMe should test pIndex, not posInBlock (John Newbery)
Tree-SHA512: d02e7ffce635c53f3e099c37cc5613b431f74e0e3ea189269132901a99fc539477849ddad0282ce721d46a4d794c2d46523d58b64f0c26c655f70b5808c745a5
8c3e6c6 Changed "Send" button default status from true to false (KibbledJiveElkZoo)
Tree-SHA512: e60d7481351e88925d99b33bdb616f3c234e93ef052571b9c4a1328186ec9abb8b61b0c4299afcb731edad2634aef6b1adaad121646b6c0c56dc933662904674
7fd50c3 allow libevent logging to be updated during runtime (John Newbery)
5255aca [rpc] Add logging RPC (John Newbery)
4d9950d Set BCLog::LIBEVENT correctly for old libevent versions. (John Newbery)
Tree-SHA512: d6788a7205372c0528da71eca052910dfb055f2940ca884f422ff3db66e23a2b49c6a15b8f27d5255554fe5c5a928f5dd903fdc63b0bd6c8fa7783e77bb30fe8
b1a6d4c Take a CTransactionRef in AddToWalletIfInvolvingMe to avoid a copy (Matt Corallo)
1c95e2f Use std::shared_ptr instead of boost::shared_ptr in ScriptForMining (Matt Corallo)
91f1e6c Remove dead-code tracking of requests for blocks we generated (Matt Corallo)
acad82f Add override to functions using CValidationInterface methods (Matt Corallo)
e6d5e6c Hold cs_wallet for whole block [dis]connection processing (Matt Corallo)
461e49f SyncTransaction->TxAddedToMempool/BlockConnected/Disconnected (Matt Corallo)
f404334 Handle SyncTransaction in ActivateBestChain instead of ConnectTrace (Matt Corallo)
a147687 Keep conflictedTxs in ConnectTrace per-block (Matt Corallo)
d3167ba Handle conflicted transactions directly in ConnectTrace (Matt Corallo)
29e6e23 Make ConnectTrace::blocksConnected private, hide behind accessors (Matt Corallo)
822000c Add pblock to connectTrace at the end of ConnectTip, not start (Matt Corallo)
f5e9a01 Include missing #include in zmqnotificationinterface.h (Matt Corallo)
Tree-SHA512: 8893d47559da3b28d2ef7359768547cba8a4b43b6f891d80f5848f995a84b1517bfb0f706fdc8cd43f09a1350349eb440d9724a59363ab517dfcc4fcb31b2018
218d915 [bench] Avoid function call arguments which are pointers to uninitialized values (practicalswift)
Tree-SHA512: 68d62e9442094f171433291b7f13dba20fc7ead5fd7f2292e1eb97ae51aa2345d40224c4a65c2e5d3552802b3cd0f675a82b6181cf5b77e964355650b25089f0
e9ff818 Fix for issues with startup and multiple monitors on windows. (Allan Doensen)
Tree-SHA512: 8502042a9b5a2fd6f5e409163bee9bd7c85e34c158754f393065f8cc6cdd0f8505b9a1803069d01fc1fb2df04d1b2ed6291388851f2ed3608eb2dd53fc22e06e
9ab9e7d Add a button to open the config file in a text editor (Eric Shaw Jr)
Tree-SHA512: 1d13be9ac788a05a5116dbb3e1136ef65732dc2b5634547860612658109668922c9ea80b77bde4ba5beaa762d54f2a986a6064d4e34e963cdcd3d126a4eced37
5f59d3e Improve CFeeBumper interface, add comments, make use of std::move (Jonas Schnelli)
0df22ed Cancel feebump is vErrors is not empty (Jonas Schnelli)
44cabe6 Use static calls for GetRequiredFee and GetMinimumFee, remove make_pair from emplace_back (Jonas Schnelli)
bb78c15 Restore CalculateMaximumSignedTxSize function signature (Jonas Schnelli)
51ea44f Use "return false" instead assert() in CWallet::SignTransaction (Jonas Schnelli)
bcc72cc Directly abort execution in FeeBumper::commit if wallet or tx is not available (Jonas Schnelli)
2718db0 Restore invalid fee check (must be > 0) (Jonas Schnelli)
0337a39 Refactor Bumpfee core functionality (Jonas Schnelli)
d1a95e8 Bumpfee move request parameter interaction to the top (Jonas Schnelli)
Tree-SHA512: 0e6d1f3322ed671fa2291e59ac9556ce4646bc78267edc6eedc46b0014b7b08aa83c30315358b911d82898847d4845634a18b67e253a7b699dcc852eb2652c07
9ff7818 doc: Update release process for simplified version bumping (Wladimir J. van der Laan)
08d9aee build: Remove duplicate version information from src/clientversion.h (Wladimir J. van der Laan)
168a703 doc: Make build system insert version in Doxyfile (Wladimir J. van der Laan)
b67eb8d doc: Remove version numbers from READMEs (Wladimir J. van der Laan)
Tree-SHA512: 531e44282b1c1383a382847a5605177917dfbf78acfaa754d1cbadd2e165c7e34ddbd01790f87615083fac359571708c2551ad24b712aab1f84a2068360c3a17
This simplifies fixing the wallet-returns-stale-info issue as we
can now hold cs_wallet across an entire block instead of only
per-tx (though we only actually do so in the next commit).
This change also removes the NOT_IN_BLOCK constant in favor of only
passing the CBlockIndex* parameter to SyncTransactions when a new
block is being connected, instead of also when a block is being
disconnected.
This change adds a parameter to BlockConnectedDisconnected which
lists the transactions which were removed from mempool due to
confliction as a result of this operation. While its somewhat of a
shame to make block-validation-logic generate a list of mempool
changes to be included in its generated callbacks, fixing this isnt
too hard.
Further in this change-set, CValidationInterface starts listening
to mempool directly, placing it in the middle and giving it a bit
of logic to know how to route notifications from block-validation,
mempool, etc (though not listening for conflicted-removals yet).
f110272 Remove `namespace fs=fs` (Wladimir J. van der Laan)
75594bd torcontrol: Use fs::path instead of std::string for private key path (Wladimir J. van der Laan)
2a5f574 Use fsbridge for fopen and freopen (Wladimir J. van der Laan)
bac5c9c Replace uses of boost::filesystem with fs (Wladimir J. van der Laan)
7d5172d Replace includes of boost/filesystem.h with fs.h (Wladimir J. van der Laan)
19e36bb Add fs.cpp/h (Wladimir J. van der Laan)
Tree-SHA512: 2c34f059dfa6850b9323f3389e9090a6b5f839a457a2960d182c2ecfafd9883c956f5928bb796613402d3aad68ebc78259796a7a313f4a6cfa98aaf507a66842
cd7f394 initialize flag variable to 0 (and continue if GetLogCategory() fails) (John Newbery)
Tree-SHA512: d0f2653bd0e71ed763220cb08d3a5335c5bdfe2f54ff7f9302d97f3265d7aa7f57606fe416a61aaac1535dbb046d0fb40a61f5a9d5cf234b042268e00ee7679d
9bef02e Bugfix: ancestor modifed fees were incorrect for descendants (Suhas Daftuar)
ba7dd8b Test prioritisetransaction and ancestor fee state (Suhas Daftuar)
Tree-SHA512: 01977d88e1afb093a003f22a6f29ea60df3d70a179fe7e55910b9c8c340c4af9fb20cdc804c40235b62c43c453f0194eda0d0d4dbd365d2d98347f5dbe5de01c
30f30c0 Add braces to submitblock per current style. (Gregory Maxwell)
4f15ea1 Check transaction count early in submitblock. (Gregory Maxwell)
ada0caa Make GetWitnessCommitmentIndex callable on blocks without a coinbase txn. (Gregory Maxwell)
Tree-SHA512: 02dcd337ad9cdd8e4fa6a42c009d016026d1229c193676ed6fcc9ce55e924fedec57f516ac1e95c3db0985243ba908307338ce783a70416cb292bed881002bfc
3bde556 Add -debugexclude option to switch off logging for specified components (John Newbery)
Tree-SHA512: 30202e3f2085fc2fc5dd4bedb92988f4cb162c612a42cf8f6395a7da326f34975ddc347f82bc4ddca6c84c438dc0cc6e87869f90c7ff88105dbeaa52a947fa43
6d5dd60 No need to use OpenSSL malloc/free (Thomas Snider)
Tree-SHA512: 29f790067ffd5a10a8e1a621318a0ba445691f57c804aa3b7c8ca372c8408d8c7fe703c42b48018e400fc32e3feff5ab401d97433910ce2c50e69da0b8a6662e
There is no point in even hashing a submitted block which doesn't have
a coinbase transaction.
This also results in more useful error reporting on corrupted input.
Thanks to rawodb for the bug report.
e9a6461 Make qt wallet test compatible with qt4 (Russell Yanofsky)
Tree-SHA512: a3e4598986cb3c5c20aaa1d440abc886d84fcc69a6ee4079787cfc8e3a2dce655060ff95612cb15ce8b5a9b8911e4afe2281345b59a4353ec32edf3771338381
This changes the logging categories to boolean flags instead of strings.
This simplifies the acceptance testing by avoiding accessing a scoped
static thread local pointer to a thread local set of strings. It
eliminates the only use of boost::thread_specific_ptr outside of
lockorder debugging.
This change allows log entries to be directed to multiple categories
and makes it easy to change the logging flags at runtime (e.g. via
an RPC, though that isn't done by this commit.)
It also eliminates the fDebug global.
Configuration of unknown logging categories now produces a warning.
Since we are more accurately measuring pcoinsTip peak usage at twice the current in dynamic usage, it makes sense to double the default (this will lead to the same effective usage and peak usage as previously).
We should also double the buffer used to avoid flushing if above 90% but still sufficient space remaining.
f885b67 refactor: Make rest.cpp dependency on `*toJSON` in `blockchain.cpp` explicit (Wladimir J. van der Laan)
8d8f28d refactor: Move RPCNotifyBlockChange out of `rpc/server.h` (Wladimir J. van der Laan)
e6dcfee refactor: Move GetDifficulty out of `rpc/server.h` (Wladimir J. van der Laan)
Tree-SHA512: fc2656611d18442f2fddba5ac1554d958151f6785c2039afdfc36735d7e71592d9686ff6cc7b2ad95180071d7514470e62c52d697c5a1e88f851bddaf5942edb
7228ce8 Compensate for memory peak at flush time (Pieter Wuille)
Tree-SHA512: 97e9848410fab061402c85d8440c54a50dd8a0203b2ea194013ea116700a6dc1b4b26b8c5f9c9c68c1f5c6b935c5d6c737437c1911b003d9ff5445c570cd449d
625488a util: Work around (virtual) memory exhaustion on 32-bit w/ glibc (Wladimir J. van der Laan)
Tree-SHA512: 99b610a8cf9561998af90e16fc19320fddd30c987e8f33325d63df0f56d70235b94d9482e80f28154d4b33a3ecf4961686380c444ec18d1da5e8804a8b6f4de1
The number of arguments is not checked MutateTxAddOutAddr(..), meaning
that
> ./bitcoin-tx -create outaddr=
accessed the vStrInputParts vector beyond its bounds.
This also includes work by jnewbery to check the inputs for
MutateTxAddPubKey()
011124a Update benchmarking with package statistics (Suhas Daftuar)
42cd8c8 Add benchmarking for CreateNewBlock (Suhas Daftuar)
eed816a Mining: return early when block is almost full (Suhas Daftuar)
Tree-SHA512: c0d8f71e4e0441acf3f4ca12f8705e413b59b323659346a447145653def71710537fb4c6d80cad8e36d68b0aabf19c92e9eab7135a8897b053ed58720856cdda
glibc-specific: On 32-bit systems set the number of arenas to 1. By
default, since glibc 2.10, the C library will create up to two heap
arenas per core. This is known to cause excessive virtual address space
usage in our usage. Work around it by setting the maximum number of
arenas to 1.
