Commit graph

1479 commits

Author SHA1 Message Date
251
e20c72f9f0 Fire TransactionRemovedFromMempool from mempool
This commit fires TransactionRemovedFromMempool callbacks from the
mempool and cleans up a bunch of code.
2019-11-21 21:05:38 +01:00
MarcoFalke
ae6943620a
Merge #17407: node: Add reference to mempool in NodeContext
fa538813b1 scripted-diff: Replace ::mempool with m_node.mempool in tests (MarcoFalke)
8888ad02e2 test: Replace recursive lock with locking annotations (MarcoFalke)
fac07f2038 node: Add reference to mempool in NodeContext (MarcoFalke)

Pull request description:

  This is the first step toward making the mempool a global that is not initialized before main.

  #### Motivation

  Currently the mempool is a global that is initialized before the `main` function. This is confusing and easy to get wrong. E.g. the mempool constructor queries state that has not been initialized, like randomness (fixed), or command line arguments (not an issue last time I checked). Also without having the chainstate (chain tip) initialized first, it doesn't make conceptually sense to have a mempool, since the mempool builds txs on top of the utxo set (chain tip).

  Finally, in the future someone might want to run a consensus-only full node (`-nowallet -noblockfilter -no... -nomempool` command line options) that only verifies blocks and updates the utxo set.

  This is conceptually the same change that has already been done for the connection manager `CConnman`.

ACKs for top commit:
  jnewbery:
    utACK fa538813b1
  ariard:
    Tested ACK fa53881.

Tree-SHA512: 2c446a8a51476354aad7126c2b833500d36b24490caa94f847b2bdc622054de0dae28980f23e3d91b1b492dc32931656d98dbd019af9e4e58f2f8c5375aac694
2019-11-21 10:18:02 -05:00
fanquake
a4eb839619
doc: remove OpenSSL from build instructions and licensing info 2019-11-18 08:56:48 -05:00
MarcoFalke
fac07f2038
node: Add reference to mempool in NodeContext
Currently it is an alias to the global ::mempool and should be used as
follows.

* Node code (validation and transaction relay) can use either ::mempool
  or node.mempool, whichever seems a better fit.
* RPC code should use the added convenience getter EnsureMempool, which
  makes sure the mempool exists before use. This prepares the RPC code
  to a future where the mempool might be disabled at runtime or compile
  time.
* Test code should use m_node.mempool directly, as the mempool is always
  initialized for tests.
2019-11-15 13:40:00 -05:00
Pieter Wuille
d61f2bb076 Run background seeding periodically instead of unpredictably
* Instead of calling RandAddSeedSleep anytime the scheduler goes
  idle, call its replacement (RandAddSeedPeriodic) just once per
  minute. This has better guarantees of actually being run, and
  helps limit how frequently the dynamic env data is gathered.
* Since this code runs once per minute regardless now, we no
  longer need to keep track of the last time strengthening was
  run; just do it always.
* Make strengthening time context dependent (100 ms at startup,
  10 ms once per minute afterwards).
2019-11-12 15:35:26 -08:00
MarcoFalke
7d14e35f3f
Merge #17342: refactor: Clean up nScriptCheckThreads
5506ecfe7a [refactor] Replace global int nScriptCheckThreads with bool (John Newbery)
d9957623b4 [tests] Don't use TestingSetup in the checkqueue_tests (John Newbery)

Pull request description:

  The meaning of this value is confusing. Refactor it and add comments.

ACKs for top commit:
  sipa:
    ACK 5506ecfe7a
  promag:
    ACK 5506ecfe7a, only change was addressing my nits.
  laanwj:
    Code review ACK 5506ecfe7a
  MarcoFalke:
    ACK 5506ecfe7a 🥐

Tree-SHA512: 78536727c98d2c23f3c0f3f169131474fef9a4486ae65029011caf06eab30f6f70ff73a65b2fb04a5d969fc1150858d1c6ea4767f04d48c1eea6b829316d0e63
2019-11-07 10:07:11 -05:00
John Newbery
5506ecfe7a [refactor] Replace global int nScriptCheckThreads with bool
The global nScriptCheckThreads int is confusing and is only needed for
its int-ness in AppInitMain. Move all `-par` parsing logic there and
replace the int nScriptCheckThreads with a bool
g_parallel_script_checks.

Also tidy up logic and improve comments.
2019-11-06 15:04:50 -05:00
Wladimir J. van der Laan
d35b12107e
Merge #17044: init: Remove auto-import of bootstrap.dat and associated code
104f7de593 remove old bootstrap relevant code (tryphe)

Pull request description:

  This picks up #15954

  I fixed the code and added at a functional test utilizing the scripts in `contrib/linearize` as suggested by @MarcoFalke .

ACKs for top commit:
  laanwj:
    ACK 104f7de593

Tree-SHA512: acac9f285f9785fcbc3afc78118461e45bec2962f90ab90e9f82f3ad28adc90a44f0443b712458ccf486e46d891eb8a67f53e7bee5fa6d89e4387814fe03f117
2019-11-05 19:25:10 +01:00
tryphe
104f7de593 remove old bootstrap relevant code
- only load blockfiles when we have paths
- add release notes for modified bootstrap functionality
- amend documentation on ThreadImport
2019-11-05 16:47:26 +01:00
Wladimir J. van der Laan
b54666c849
Merge #17286: Fix help-debug -checkpoints
a8b82867d5 Fix incorrect help-debug for -checkpoints (Antoine Riard)

Pull request description:

ACKs for top commit:
  jnewbery:
    ACK a8b82867d5 for improving the `-prune` help text.
  MarcoFalke:
    ACK a8b82867d5

Tree-SHA512: 973fa97436be09a9939386dc00023420a7296a9e268356bf26aa06468f9f0d2c822205a4f1ce8f44a0562aa64ad90a43dec5697af656ef28ba6829e4e4360e94
2019-11-01 11:41:45 +01:00
Hennadii Stepanov
8a0ca5e9de
log: Fix log message for -par=1
Co-authored-by: Wladimir J. van der Laan <laanwj@protonmail.com>
2019-10-31 18:57:46 +02:00
Antoine Riard
a8b82867d5 Fix incorrect help-debug for -checkpoints 2019-10-30 18:29:16 -04:00
Wladimir J. van der Laan
3c40bc6726
Merge #15921: validation: Tidy up ValidationState interface
3004d5a12d [validation] Remove fMissingInputs from AcceptToMemoryPool() (John Newbery)
c428622a5b [validation] Remove unused first_invalid parameter from ProcessNewBlockHeaders() (John Newbery)
7204c6434b [validation] Remove useless ret parameter from Invalid() (John Newbery)
1a37de4b31 [validation] Remove error() calls from Invalid() calls (John Newbery)
067981e492 [validation] Tidy Up ValidationResult class (John Newbery)
a27a2957ed [validation] Add CValidationState subclasses (John Newbery)

Pull request description:

  Carries out some remaining tidy-ups remaining after PR 15141:

  - split ValidationState into TxValidationState and BlockValidationState (commit from ajtowns)
  - various minor code style tidy-ups to the ValidationState class
  - remove the useless `ret` parameter from `ValidationState::Invalid()`
  - remove the now unused `first_invalid` parameter from `ProcessNewBlockHeaders()`
  - remove the `fMissingInputs` parameter from `AcceptToMemoryPool()`, and deal with missing inputs the same way as other errors by using the `TxValidationState` object.

  Tip for reviewers (thanks ryanofsky!): The first commit ("[validation] Add CValidationState subclasses" ) is huge and can be easier to start reviewing if you revert the rote, mechanical changes:

  Substitute the commit hash of commit "[validation] Add CValidationState subclasses" for <CommitHash> in the commands below.

  ```sh
  git checkout <CommitHash>
  git grep -l ValidationState | xargs sed -i 's/BlockValidationState\|TxValidationState/CValidationState/g'
  git grep -l ValidationResult | xargs sed -i 's/BlockValidationResult\|TxValidationResult/ValidationInvalidReason/g'
  git grep -l MaybePunish | xargs sed -i 's/MaybePunishNode\(ForBlock\|ForTx\)/MaybePunishNode/g'
  git diff HEAD^
  ```

  After that it's possible to easily see the mechanical changes with:

  ```sh
  git log -p -n1 -U0 --word-diff-regex=. <CommitHash>
  ```

ACKs for top commit:
  laanwj:
    ACK 3004d5a12d
  amitiuttarwar:
    code review ACK 3004d5a12d. Also built & ran tests locally.
  fjahr:
    Code review ACK 3004d5a12d . Only nit style change and pure virtual destructor added since my last review.
  ryanofsky:
    Code review ACK 3004d5a12d. Just whitespace change and pure virtual destructor added since last review.

Tree-SHA512: 511de1fb380a18bec1944ea82b513b6192df632ee08bb16344a2df3c40811a88f3872f04df24bc93a41643c96c48f376a04551840fd804a961490d6c702c3d36
2019-10-30 15:37:34 +01:00
Wladimir J. van der Laan
471e5f8829
Merge #16839: Replace Connman and BanMan globals with NodeContext local
362ded410b Avoid using g_rpc_node global in wallet code (Russell Yanofsky)
8922d7f6b7 scripted-diff: Remove g_connman, g_banman globals (Russell Yanofsky)
e6f4f895d5 Pass NodeContext, ConnMan, BanMan references more places (Russell Yanofsky)
4d5448c76b MOVEONLY: Move NodeContext struct to node/context.h (Russell Yanofsky)
301bd41a2e scripted-diff: Rename InitInterfaces to NodeContext (Russell Yanofsky)

Pull request description:

  This change is mainly a naming / organization change intended to simplify #10102. It:

  - Renames struct InitInterfaces to struct NodeContext and moves it from
    src/init.h to src/node/context.h. This is a cosmetic change intended to make
    the point of the struct more obvious.

  - Gets rid of BanMan and ConnMan globals making them NodeContext members
    instead. Getting rid of these globals has been talked about in past as a way
    to implement testing and simulations. Making them NodeContext members is a
    way of keeping them accessible without the globals.

  - Splits g_rpc_interfaces global into g_rpc_node and g_rpc_chain globals. This
    better separates node and wallet rpc methods. Node RPC methods should have
    access NodeContext, while wallet RPC methods should only have indirect access
    to node functionality via interfaces::Chain.

  - Adds NodeContext& references to interfaces::Chain class and the
    interfaces::MakeChain() function. This is needed to access ConnMan and BanMan
    instances without the globals.

  - Gets rid of redundant Node and Chain instances in Qt tests. This is
    needed due to the previous MakeChain change, and also makes test setup a
    little more straightforward. More cleanup could be done in the future, but it
    will require deduplication of bitcoind, bitcoin-qt, and TestingSetup init
    code.

ACKs for top commit:
  laanwj:
    ACK 362ded410b

Tree-SHA512: 9ae6ff1e33423291d1e52056bac95e0874538390892a6e83c4c115b3c73155a8827c0191b46eb3d14e3b3f6c23ccb08095490880fbc3188026319c71739f7db2
2019-10-30 12:35:41 +01:00
John Newbery
a27a2957ed [validation] Add CValidationState subclasses
Split CValidationState into TxValidationState and BlockValidationState
to store validation results for transactions and blocks respectively.
2019-10-29 15:46:45 -04:00
Russell Yanofsky
8922d7f6b7 scripted-diff: Remove g_connman, g_banman globals
-BEGIN VERIFY SCRIPT-
sed -i 's:#include <interfaces/chain.h>:#include <banman.h>\n#include <interfaces/chain.h>\n#include <net.h>\n#include <net_processing.h>:' src/node/context.cpp
sed -i 's/namespace interfaces {/class BanMan;\nclass CConnman;\nclass PeerLogicValidation;\n&/' src/node/context.h
sed -i 's/std::unique_ptr<interfaces::Chain> chain/std::unique_ptr<CConnman> connman;\n    std::unique_ptr<PeerLogicValidation> peer_logic;\n    std::unique_ptr<BanMan> banman;\n    &/' src/node/context.h
sed -i '/std::unique_ptr<[^>]\+> \(g_connman\|g_banman\|peerLogic\);/d' src/banman.h src/net.h src/init.cpp
sed -i 's/g_connman/m_context.connman/g' src/interfaces/node.cpp
sed -i 's/g_banman/m_context.banman/g' src/interfaces/node.cpp
sed -i 's/g_connman/m_node.connman/g' src/interfaces/chain.cpp src/test/setup_common.cpp
sed -i 's/g_banman/m_node.banman/g' src/test/setup_common.cpp
sed -i 's/g_connman/node.connman/g' src/init.cpp src/node/transaction.cpp
sed -i 's/g_banman/node.banman/g' src/init.cpp
sed -i 's/peerLogic/node.peer_logic/g' src/init.cpp
sed -i 's/g_connman/g_rpc_node->connman/g' src/rpc/mining.cpp src/rpc/net.cpp src/rpc/rawtransaction.cpp
sed -i 's/g_banman/g_rpc_node->banman/g' src/rpc/net.cpp
sed -i 's/std::shared_ptr<CWallet> wallet =/node.context()->connman = std::move(test.m_node.connman);\n    &/' src/qt/test/wallettests.cpp
-END VERIFY SCRIPT-
2019-10-28 10:30:51 -04:00
Russell Yanofsky
e6f4f895d5 Pass NodeContext, ConnMan, BanMan references more places
So g_connman and g_banman globals can be removed next commit.
2019-10-28 10:30:51 -04:00
Russell Yanofsky
301bd41a2e scripted-diff: Rename InitInterfaces to NodeContext
-BEGIN VERIFY SCRIPT-
s() { git grep -l "$1" src | xargs sed -i "s/$1/$2/g"; }

s 'struct InitInterfaces'              'struct NodeContext'
s 'InitInterfaces interfaces'          'NodeContext node'
s 'InitInterfaces& interfaces'         'NodeContext\& node'
s 'InitInterfaces m_interfaces'        'NodeContext m_context'
s 'InitInterfaces\* g_rpc_interfaces'  'NodeContext* g_rpc_node'
s 'g_rpc_interfaces = &interfaces'     'g_rpc_node = \&node'
s 'g_rpc_interfaces'                   'g_rpc_node'
s 'm_interfaces'                       'm_context'
s 'interfaces\.chain'                  'node.chain'
s '\(AppInitMain\|Shutdown\|Construct\)(interfaces)' '\1(node)'
s 'init interfaces' 'chain clients'
-END VERIFY SCRIPT-
2019-10-28 10:30:51 -04:00
Wladimir J. van der Laan
c72906dcc1 refactor: Remove redundant c_str() calls in formatting
Our formatter, tinyformat, *never* needs `c_str()` for strings.
Remove redundant `c_str()` calls for:

- `strprintf`
- `LogPrintf`
- `tfm::format`
2019-10-28 13:31:33 +01:00
fanquake
3548e4aac7
Remove BIP70 Support 2019-10-24 16:01:43 -04:00
MarcoFalke
fa25f43ac5
p2p: Remove BIP61 reject messages 2019-10-02 10:39:14 -04:00
MarcoFalke
fadd6e0d2a
doc: Remove mention of renamed mapBlocksUnlinked 2019-09-30 14:34:25 -04:00
James O'Beirne
3cf36736e5 refactoring: move ReplayBlocks under CChainState 2019-09-17 09:45:38 -04:00
James O'Beirne
bcf73d3b84 refactoring: move LoadChainTip to CChainState method 2019-09-17 09:45:38 -04:00
Samuel Dobson
8af835a72d
Merge #16796: wallet: Fix segfault in CreateWalletFromFile
fa734603b7 wallet: Fix segmentation fault in CreateWalletFromFile (MarcoFalke)
fab3c34412 test: Print both messages on failure in assert_raises_message (MarcoFalke)
faa13539d5 wallet: Fix documentation around WalletParameterInteraction (MarcoFalke)

Pull request description:

  Comes with a test to aid review. The test should fail without the fix to bitcoind

  The following `CreateWalletFromFile` issues are fixed:

  * `walletFile` refers to freed memory and will thus corrupt the debug.log and/or crash the node if read
  * `WalletParameterInteraction` was moved to `CreateWalletFromFile` and `WalletInit::ParameterInteraction` without updating the documentation

ACKs for top commit:
  promag:
    ACK fa734603b7.
  darosior:
    ACK fa734603b7
  meshcollider:
    LGTM, code-read ACK fa734603b7

Tree-SHA512: 2aceb63a3f25b90a840cfa08d37f5874aad4eb3df8c2ebf94e2ed18b55809b185e6920bdb345b988bff1fcea5e68a214fe06c361f7da2c01a3cc29e0cc421cb4
2019-09-09 23:34:05 +12:00
fanquake
189c19e012
Merge #15759: p2p: Add 2 outbound block-relay-only connections
0ba08020c9 Disconnect peers violating blocks-only mode (Suhas Daftuar)
937eba91e1 doc: improve comments relating to block-relay-only peers (Suhas Daftuar)
430f489027 Don't relay addr messages to block-relay-only peers (Suhas Daftuar)
3a5e885306 Add 2 outbound block-relay-only connections (Suhas Daftuar)
b83f51a4bb Add comment explaining intended use of m_tx_relay (Suhas Daftuar)
e75c39cd42 Check that tx_relay is initialized before access (Suhas Daftuar)
c4aa2ba822 [refactor] Change tx_relay structure to be unique_ptr (Suhas Daftuar)
4de0dbac9b [refactor] Move tx relay state to separate structure (Suhas Daftuar)
26a93bce29 Remove unused variable (Suhas Daftuar)

Pull request description:

  Transaction relay is optimized for a combination of redundancy/robustness as well as bandwidth minimization -- as a result transaction relay leaks information that adversaries can use to infer the network topology.

  Network topology is better kept private for (at least) two reasons:

  (a) Knowledge of the network graph can make it easier to find the source IP of a given transaction.

  (b) Knowledge of the network graph could be used to split a target node or nodes from the honest network (eg by knowing which peers to attack in order to achieve a network split).

  We can eliminate the risks of (b) by separating block relay from transaction relay; inferring network connectivity from the relay of blocks/block headers is much more expensive for an adversary.

  After this commit, bitcoind will make 2 additional outbound connections that are only used for block relay. (In the future, we might consider rotating our transaction-relay peers to help limit the effects of (a).)

ACKs for top commit:
  sipa:
    ACK 0ba08020c9
  ajtowns:
    ACK 0ba08020c9 -- code review, ran tests. ran it on mainnet for a couple of days with MAX_BLOCKS_ONLY_CONNECTIONS upped from 2 to 16 and didn't observe any unexpected behaviour: it disconnected a couple of peers that tried sending inv's, and it successfully did compact block relay with some block relay peers.
  TheBlueMatt:
    re-utACK 0ba08020c9. Pointed out that stats.fRelayTxes was sometimes uninitialized for blocksonly peers (though its not a big deal and only effects RPC), which has since been fixed here. Otherwise changes are pretty trivial so looks good.
  jnewbery:
    utACK 0ba08020c9
  jamesob:
    ACK 0ba08020c9

Tree-SHA512: 4c3629434472c7dd4125253417b1be41967a508c3cfec8af5a34cad685464fbebbb6558f0f8f5c0d4463e3ffa4fa3aabd58247692cb9ab8395f4993078b9bcdf
2019-09-07 17:45:03 +08:00
Suhas Daftuar
3a5e885306 Add 2 outbound block-relay-only connections
Transaction relay is primarily optimized for balancing redundancy/robustness
with bandwidth minimization -- as a result transaction relay leaks information
that adversaries can use to infer the network topology.

Network topology is better kept private for (at least) two reasons:

(a) Knowledge of the network graph can make it easier to find the source IP of
a given transaction.

(b) Knowledge of the network graph could be used to split a target node or
nodes from the honest network (eg by knowing which peers to attack in order to
achieve a network split).

We can eliminate the risks of (b) by separating block relay from transaction
relay; inferring network connectivity from the relay of blocks/block headers is
much more expensive for an adversary.

After this commit, bitcoind will make 2 additional outbound connections that
are only used for block relay. (In the future, we might consider rotating our
transaction-relay peers to help limit the effects of (a).)
2019-09-04 14:58:36 -04:00
MarcoFalke
faa13539d5
wallet: Fix documentation around WalletParameterInteraction 2019-09-03 14:10:25 -04:00
MarcoFalke
fa70d199d0
util: Make util/error bilingual_str (refactor)
Translated strings should not end up in the debug log, stderr, or
returned by an RPC.

Changing the util methods in util/error to return a bilingual_str paves
the way to achieve this goal in the long term.
2019-08-28 15:52:26 -04:00
nicolas.dorier
66ad75472f
[Doc] Add documentation for the new whitelist permissions 2019-08-24 23:22:29 +09:00
Sjors Provoost
20ea9ef6ce
[doc] mention whitelist is inbound, and applies to blocksonly 2019-08-16 15:58:31 +02:00
MarcoFalke
21a165325e
Merge #16620: util: Move ResolveErrMsg to util/error
fa27c55b05 util: Move ResolveErrMsg to util/error (MarcoFalke)

Pull request description:

  Pull request https://github.com/bitcoin/bitcoin/pull/16248#discussion_r314035862 duplicated the body of this util function. The whole point of the util function is to be shared, so do that here as a fixup to #16248

ACKs for top commit:
  Sjors:
    utACK fa27c55
  ryanofsky:
    utACK fa27c55b05

Tree-SHA512: e2b25ae05082fe9d0ee94bdc7d51f801bd9f78e8fc2b141e9a313e008dbb8a77653fe876e111c802c676859c6b76c37a673d1f8cfbe7ad25607a5ffcffde19fd
2019-08-16 07:53:23 -04:00
MarcoFalke
1bf2ff2bf8
Merge #16060: Bury bip9 deployments
e78aaf41f4 [docs] Add release notes for burying bip 9 soft fork deployments (John Newbery)
8319e738f9 [tests] Add coverage for the content of getblockchaininfo.softforks (James O'Beirne)
0328dcdcfc [Consensus] Bury segwit deployment (John Newbery)
1c93b9b31c [Consensus] Bury CSV deployment height (John Newbery)
3862e473f0 [rpc] Tidy up reporting of buried and ongoing softforks (John Newbery)

Pull request description:

  This hardcodes CSV and segwit activation heights, similar to the BIP 90 buried deployments for BIPs 34, 65 and 66.

  CSV and segwit have been active for over 18 months. Hardcoding the activation height is a code simplification, makes it easier to understand segwit activation status, and reduces technical debt.

  This was originally attempted by jl2012 in #11398 and again by me in #12360.

ACKs for top commit:
  ajtowns:
    ACK e78aaf41f4 ; checked diff to previous acked commit, checked tests still work
  ariard:
    ACK e78aaf4, check diff, run the tests again and successfully activated csv/segwit heights on mainnet as expected.
  MarcoFalke:
    ACK e78aaf41f4 (still didn't check if the mainnet block heights are correct, but the code looks good now)

Tree-SHA512: 7e951829106e21a81725f7d3e236eddbb59349189740907bb47e33f5dbf95c43753ac1231f47ae7bee85c8c81b2146afcdfdc11deb1503947f23093a9c399912
2019-08-15 16:02:10 -04:00
MarcoFalke
85883a9f8e
Merge #16443: refactor: have CCoins* data managed under CChainState
582d2cd747 Cover UTXO set access with lock annotations (James O'Beirne)
5693530685 refactor: have CCoins* data managed under CChainState (James O'Beirne)
fae6ab6aed refactor: pcoinsTip -> CChainState::CoinsTip() (James O'Beirne)

Pull request description:

  This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):

  Parent PR: #15606
  Issue: #15605
  Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal

  ---

  This change encapsulates UTXO set data within CChainState instances, removing global data `pcoinsTip` and `pcoinsviewdb`. This is necessary if we want to maintain multiple chainstates with their own rendering of the UTXO set.

  We introduce a class CoinsViews which consolidates the construction of a CCoins* hierarchy.

  This commit could be broken into smaller pieces, but it would require more ephemeral diffs to, e.g., temporarily change CCoinsViewDB's constructor invocations.

ACKs for top commit:
  Sjors:
    reACK 582d2cd747
  MarcoFalke:
    ACK 582d2cd747

Tree-SHA512: ec9d904fe5dca8cd2dc4b7916daa5d8bab30856dd4645987300f905e0a19f9919fce4f9d1ff03eda982943ca73e6e9a746be6cf53b46510de36e8c81a1eafba1
2019-08-15 12:47:15 -04:00
James O'Beirne
582d2cd747 Cover UTXO set access with lock annotations
i.e. any CoinsViews members. Adds a lock acquisition to `gettxoutsetinfo` RPC
to comply with added annotations.

Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
2019-08-15 11:19:40 -04:00
James O'Beirne
5693530685 refactor: have CCoins* data managed under CChainState
This change encapsulates UTXO set data within CChainState instances, removing
global data `pcoinsTip` and `pcoinsviewdb`. This is necessary if we want to
maintain multiple chainstates with their own rendering of the UTXO set.

We introduce a class CoinsViews which consolidates the construction of a
CCoins* hierarchy. Construction of its various pieces (db, coinscatcher,
in-memory cache) is split up so that we avoid flushing bad state to disk if
startup is interrupted.

We also introduce `CChainState::CanFlushToDisk()` which tells us when it is
safe to flush the chainstate based on this partial construction.

This commit could be broken into smaller pieces, but it would require more
ephemeral diffs to, e.g., temporarily change CCoinsViewDB's constructor
invocations.

Other changes:

- A parameter has been added to the CCoinsViewDB constructor that allows the
  name of the corresponding leveldb directory to be specified.

Thanks to Russell Yanofsky and Marco Falke for helpful feedback.
2019-08-15 11:04:10 -04:00
MarcoFalke
fa27c55b05
util: Move ResolveErrMsg to util/error 2019-08-15 10:05:32 -04:00
John Newbery
0328dcdcfc [Consensus] Bury segwit deployment
Hardcode segwit deployment height to 481824 for mainnet.
2019-08-14 15:52:52 -04:00
nicolas.dorier
e5b26deaaa
Make whitebind/whitelist permissions more flexible 2019-08-11 11:33:27 +09:00
Hennadii Stepanov
dde80c272a
Use ArgsManager::NETWORK_ONLY flag 2019-07-27 22:51:58 +03:00
Hennadii Stepanov
fb4b9f9e3b
scripted-diff: Use ArgsManager::DEBUG_ONLY flag
-BEGIN VERIFY SCRIPT-
sed -i 's/unsigned int flags, const bool debug_only,/unsigned int flags,/' src/util/system.h src/util/system.cpp
sed -i 's/ArgsManager::NONE, debug_only/flags, false/' src/util/system.cpp
sed -i 's/arg.second.m_debug_only/(arg.second.m_flags \& ArgsManager::DEBUG_ONLY)/' src/util/system.cpp
sed -i 's/ArgsManager::ALLOW_ANY, true, OptionsCategory::/ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::/' $(git grep --files-with-matches 'AddArg(' src)
sed -i 's/ArgsManager::ALLOW_ANY, false, OptionsCategory::/ArgsManager::ALLOW_ANY, OptionsCategory::/' $(git grep --files-with-matches 'AddArg(' src)
-END VERIFY SCRIPT-
2019-07-27 15:05:14 +03:00
Hennadii Stepanov
1b4b9422ca
scripted-diff: Use Flags enum in AddArg()
-BEGIN VERIFY SCRIPT-
sed -i 's/const bool debug_only,/unsigned int flags, &/' src/util/system.h src/util/system.cpp
sed -i -E 's/(true|false), OptionsCategory::/ArgsManager::ALLOW_ANY, &/' $(git grep --files-with-matches 'AddArg(' src)
-END VERIFY SCRIPT-
2019-07-27 15:05:14 +03:00
Hennadii Stepanov
753f7cccce
scripted-diff: Make translation bilingual
-BEGIN VERIFY SCRIPT-
sed -i 's/inline std::string _(const char\* psz)/inline bilingual_str _(const char\* psz)/' src/util/translation.h
sed -i 's/return G_TRANSLATION_FUN ? (G_TRANSLATION_FUN)(psz) : psz;/return bilingual_str{psz, G_TRANSLATION_FUN ? (G_TRANSLATION_FUN)(psz) : psz};/' src/util/translation.h
sed -i 's/\b_("\([^"]\|\\"\)*")/&.translated/g' $(git grep --files-with-matches '\b_("' src)
echo Hard cases - multiline strings.
sed -i 's/"Visit %s for further information about the software.")/&.translated/g' src/init.cpp
sed -i "s/\"Only rebuild the block database if you are sure that your computer's date and time are correct\")/&.translated/g" src/init.cpp
sed -i 's/" restore from a backup.")/&.translated/g' src/wallet/db.cpp
sed -i 's/" or address book entries might be missing or incorrect.")/&.translated/g' src/wallet/wallet.cpp
echo Special case.
sed -i 's/_(COPYRIGHT_HOLDERS)/&.translated/' src/util/system.cpp test/lint/lint-format-strings.py
-END VERIFY SCRIPT-
2019-07-24 16:33:20 +03:00
Hennadii Stepanov
0b86e517ad
Refactor out translation.h
This is a prerequisite for introducing bilingual error messages.
Note: #includes are arranged by clang-format-diff.py script.
2019-07-24 16:32:53 +03:00
fanquake
848f245d04
Merge #16355: refactor: move CCoinsViewErrorCatcher out of init.cpp
4f050b91c7 move-onlyish: move CCoinsViewErrorCatcher out of init.cpp (James O'Beirne)

Pull request description:

  This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):

  Parent PR: #15606
  Issue: #15605
  Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal

  ---

  This change moves `CCoinsViewErrorCatcher` out of `init` and into `coins` so that it can later be included in [a `CoinsView` instance](91284964ef (diff-349fbb003d5ae550a2e8fa658e475880R504)) under `CChainState`.

  Instead of hardcoding read failure behavior that has knowledge of qt, it accepts error callbacks via `AddReadErrCallback()`.

ACKs for top commit:
  dongcarl:
    re-ACK 4f050b91c7
  ryanofsky:
    utACK 4f050b91c7. Only change since last review is fixing const.

Tree-SHA512: eaba21606d15d2b8d0e3db7cec57779ce181af953db1ef4af80a0bc1dfb57923d0befde9d61b7be55c32224744f7fb6bd47d4e4c72f3ccfe6eaf0f4ae3765c17
2019-07-23 12:42:24 +08:00
James O'Beirne
4f050b91c7 move-onlyish: move CCoinsViewErrorCatcher out of init.cpp
and into coins.cpp. This move is necessary so that we can later include a
CCoinsViewErrorCatcher instance under CChainState.

Co-authored-by: MarcoFalke <falke.marco@gmail.com>
2019-07-21 21:00:31 -04:00
MarcoFalke
24dbcf3808
Merge #15891: test: Require standard txs in regtest by default
fa89badf88 test: Require standard txs in regtest (MarcoFalke)
fa9b419160 test: Add test that mainnet requires standard txs (MarcoFalke)
fa613ca0a8 chainparams: Remove unused fMineBlocksOnDemand (MarcoFalke)

Pull request description:

  I don't see a reason why regtest should allow non-standard txs, as it makes testing mainnet behaviour such as #15846 unnecessarily hard and unintuitive.

  Of course, testnet policy remains unchanged to allow propagation of non-standard txs.

ACKs for top commit:
  ajtowns:
    ACK fa89badf88

Tree-SHA512: c4c675affb054868850bd2683aa07f4c741a448cbacb2ea8334191e105f426b0790fe6a468be61e9c5880d24154f7bf1c7075051697172dce92180c1bc3a1c90
2019-07-16 16:10:17 -04:00
Wladimir J. van der Laan
8f604361eb
Merge #16194: refactor: share blockmetadata with BlockManager
682a1d0f20 refactoring: remove mapBlockIndex global (James O'Beirne)
55d525ab90 refactoring: make pindexBestInvalid internal to validation.cpp (James O'Beirne)
4ed55dfcd7 refactoring: add block_index_candidates arg to LoadBlockIndex (James O'Beirne)
613c46fe9e refactoring: move block metadata structures into BlockManager (James O'Beirne)

Pull request description:

  This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):

  Parent PR: #15606
  Issue: #15605
  Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal

  ---

  Under an assumeutxo model, we have multiple CChainState instances in use at once in order to support background validation. Currently, each CChainState instance has its own mapBlockIndex, a collection of linked block headers, in addition to a few other data structures that are related to maintenance of the block tree but not necessarily to any given chainstate.

  In order to avoid duplicating this data across chainstates, this change moves chainstate-agnostic block metadata (and related behavior) into a class, `BlockManager`. Chainstates are parameterized with a reference to a blockmanager instance and in practice they share the same instance.

  Most of this change is conceptually move-only, though the diff is somewhat muddled. The first commit can be reviewed slightly more easily with `--color-moved=dimmed_zebra`. Admittedly, that commit is pretty unwieldy; I tried to split it up after the fact with `git add --patch`, but that was difficult because of git's inability to split hunks past a certain point. Some of the moves also ended up being obscured when done over separate commits.

ACKs for top commit:
  MarcoFalke:
    ACK 682a1d0f20
  ryanofsky:
    utACK 682a1d0f20, only changes since last review were rebase and fixing conflict on a moved line
  ariard:
    utACK 682a1d0. Most of the changes are move-only, with main problem being to avoid creating circular dependencies between `BlockManager` and `CChainState`. Tested, comments are mostly nits, feel free to ignore them

Tree-SHA512: 738d8d06539ba53acf4bd2d48ae000473e645bbc4e63d798d55d247a4d5a4f781b73538ed590f6407be9ab402ea9d395570ea20bff0a4b9ce747bcc1600c5108
2019-07-16 18:48:07 +02:00
MarcoFalke
4882040182
Merge #16291: gui: Stop translating PACKAGE_NAME
fa64b947bb util: No translation of `Bitcoin Core` in the copyright (MarcoFalke)
fab85208f6 qt: Run «make translate» in ./src/ (MarcoFalke)
fabe87d2c9 scripted-diff: Avoid passing PACKAGE_NAME for translation (MarcoFalke)
fa5e9f157e build: Stop translating PACKAGE_NAME (MarcoFalke)

Pull request description:

  Generally the package name is not translated, but the package description is.

  E.g. `GIMP` or `Firefox` are always called that way regardless of the system language. However, "`Firefox` webbrowser" or "`GIMP` image manipulation program" are translated.

ACKs for top commit:
  hebasto:
    ACK fa64b947bb, I have not tested the code, but I have reviewed it and it looks OK, I agree it can be merged.

Tree-SHA512: 626f811531182d0ba0ef1044930d32726773349bcb49b10261288a86ee6b80a183db30a87d817d5b0d501fad058ac22d6272311716b4f5a154f17c6f391a5a1a
2019-07-08 13:39:59 -04:00
James O'Beirne
682a1d0f20 refactoring: remove mapBlockIndex global
in lieu of ::BlockIndex().
2019-07-08 11:33:13 -04:00
Sjors Provoost
976b034b13
[build]: use #if HAVE_SYSTEM instead of defined(HAVE_SYSTEM) 2019-07-05 18:32:05 +02:00
Wladimir J. van der Laan
8c69fae944
Merge #15457: Check std::system for -[alert|block|wallet]notify
f874e14cd3 [build]: check std::system for -[alert|block|wallet]notify (Sjors Provoost)
cc3ad56ff2 [build] MSVC: set HAVE_SYSTEM for desktop apps (Sjors Provoost)
c1c91bb78d [build] detect std::system or ::wsystem (Sjors Provoost)

Pull request description:

  Platforms such as iOs and Universal Windows Platform do not support launching a process through system().

ACKs for top commit:
  laanwj:
    code review ACK f874e14cd3

Tree-SHA512: 16bb4a8fa1896046ccb22a46c8985e1aa45f5b11ecf5539eb2299e9a58f1a5b085c0c12cb6939c7493d93abce7e84fadcbfc73374c887db63da6d00c08aa476d
2019-07-05 17:33:33 +02:00
MarcoFalke
fabe87d2c9
scripted-diff: Avoid passing PACKAGE_NAME for translation
-BEGIN VERIFY SCRIPT-
sed -i --regexp-extended -e 's/\<\w+(::\w+)?\(PACKAGE_NAME\)/PACKAGE_NAME/g' $(git grep -l --extended-regexp '\<\w+(::\w+)?\(PACKAGE_NAME\)' src)
-END VERIFY SCRIPT-
2019-06-26 11:01:57 -04:00
MarcoFalke
fa89badf88
test: Require standard txs in regtest 2019-06-21 16:45:16 -04:00
MarcoFalke
0853d8d2fd
Merge #16112: util: Log early messages
faa2a47cd7 logging: Add threadsafety comments (MarcoFalke)
0b282f9b00 Log early messages with -printtoconsole (Anthony Towns)
412987430c Replace OpenDebugLog() with StartLogging() (Anthony Towns)

Pull request description:

  Early log messages are dropped on the floor and they'd never make it to the console or debug log. This can be tested by running the test included in this pull request without re-compiling the `bitcoind`.

  Fix that by buffering early messages and flushing them as soon as all logging options have been initialized and logging has been started.

  This pull request is identical to  "Log early messages with -printtoconsole" (#13088)  by **ajtowns**, with the following changes:
  * Rebased
  * Added docstrings for `m_buffering` and `StartLogging`
  * Switch `CCriticalSection` (aka `RecursiveMutex`) to just `Mutex` in the last commit
  * Added tests

  Fixes #16098
  Fixes #13157
  Closes #13088

ACKs for commit faa2a4:
  ajtowns:
    utACK faa2a47cd7
  hebasto:
    ACK faa2a47cd7
  kristapsk:
    ACK faa2a47cd7 (ran added functional test before / after recompiling, didn't do additional testing)

Tree-SHA512: 685e2882642fe2a43ce171d42862582dadb840d03cda8236a994322c389ca2a1f3f431b179b2726c155c61793543bb340c568a5455d97f8b83bc7d307a85d387
2019-06-18 12:32:32 -04:00
MarcoFalke
e2182b02b5
Merge #16171: Remove -mempoolreplacement to prevent needless block prop slowness.
8053e5cdad Remove -mempoolreplacement to prevent needless block prop slowness. (Matt Corallo)

Pull request description:

  At this point there is no reasonable excuse to disable opt-in RBF,
  and, unlike when this option was added, there are now significant
  issues created when disabling it (in the form of compact block
  reconstruction failures). Further, it breaks a lot of modern wallet
  behavior.

  This removes an option that is:

  * (a) only useful when a large portion of (other) miners enforce it as well
  * (b) is detrimental to everyone (income for miners, RBF notifications for others) who uses it individually otherwise
  * (c) is effectively unused
  * (d) is often confused with disabling RBF (rather than just remaining stubbornly unaware of it while the rest of the network lets it through)

ACKs for commit 8053e5:
  practicalswift:
    utACK 8053e5cdad
  promag:
    Deprecation would save from unlikely rantings, still ACK 8053e5c.
  jtimon:
    utACK 8053e5cdad
  ajtowns:
    ACK 8053e5cdad -- quick code review, checked tests work
  MarcoFalke:
    ACK 8053e5cdad

Tree-SHA512: 01aee8905b2487fc38a3a86649d422d2d2345bc60f878889ebda4b8680783e1f1a97c2000c27ef086719501be2abc2911b2039a259a5e5c04f3b24ff02b0427e
2019-06-18 10:04:14 -04:00
MarcoFalke
fa8f195195
Replace remaining fprintf with tfm::format manually 2019-06-13 11:46:38 -04:00
Matt Corallo
8053e5cdad Remove -mempoolreplacement to prevent needless block prop slowness.
At this point there is no reasonable excuse to disable opt-in RBF,
and, unlike when this option was added, there are now significant
issues created when disabling it (in the form of compact block
reconstruction failures). Further, it breaks a lot of modern wallet
behavior.
2019-06-08 09:32:33 -04:00
MarcoFalke
d0f81a96d9
Merge #16129: refactor: Remove unused includes
67f4e9c522 Include core_io.h from core_read.cpp (practicalswift)
eca9767673 Make reasoning about dependencies easier by not including unused dependencies (practicalswift)

Pull request description:

  Make reasoning about dependencies easier by not including unused dependencies.

  Please note that the removed headers are _not_ "transitively included" by other still included headers. Thus the removals are real.

  As an added bonus this change means less work for the preprocessor/compiler. At least 51 393 lines of code no longer needs to be processed:

  ```
  $ git diff -u HEAD~1 | grep -E '^\-#include ' | cut -f2 -d"<" | cut -f1 -d">" | \
        sed 's%^%src/%g' | xargs cat | wc -l
  51393
  ```

  Note that 51 393 is the lower bound: the real number is likely much higher when taking into account transitively included headers :-)

ACKs for commit 67f4e9:

Tree-SHA512: 0c8868aac59813f099ce53d5307eed7962dd6f2ff3546768ef9e5c4508b87f8210f1a22c7e826c3c06bebbf28bdbfcf1628ed354c2d0fdb9a31a42cefb8fdf13
2019-06-06 16:41:40 +02:00
Sjors Provoost
f874e14cd3
[build]: check std::system for -[alert|block|wallet]notify
Platforms such as iOs do not support launching a process
through system().
2019-06-06 11:54:26 +02:00
Wladimir J. van der Laan
5d37c1bde0
Merge #15976: refactor: move methods under CChainState (pt. 1)
403e677c9 refactoring: IsInitialBlockDownload -> CChainState (James O'Beirne)
3ccbc376d refactoring: FlushStateToDisk -> CChainState (James O'Beirne)
4d6688603 refactoring: introduce ChainstateActive() (James O'Beirne)
d7c97edee move-only: make the CChainState interface public (James O'Beirne)

Pull request description:

  This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):

  Parent PR: #15606
  Issue: #15605
  Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal

  ---

  This changeset starts moving functionality intimately related to CChainState into methods. Parameterizing these functions by a particular CChainState is necessary for the use of multiple chainstates simultaneously (e.g. for asynchronous background validation).

  In this change, we
  - make the CChainState interface public - since other units will start to invoke its methods directly,
  - introduce `::ChainstateActive()`, the CChainState equivalent for `::ChainActive()`,
  - and move `IsInitialBlockDownload()` and `FlushStateToDisk()` into methods on CChainState.

  Independent of assumeutxo, these changes better encapsulate chainstate behavior and allow easier use from a testing context.

  There are more methods that we'll move in the future, but they require other substantial changes (i.e. moving ownership of the `CCoinsView*` hierarchy into CChainState) so we'll save them for future PRs.

  ---

  The first move-only commit is most easily reviewed with `git diff ... --color-moved=dimmed_zebra`.

ACKs for commit 403e67:
  Empact:
    utACK 403e677c9e no need to address my nits herein
  Sjors:
    utACK 403e677
  ryanofsky:
    utACK 403e677c9e. Only change since previous review is removing global state comment as suggested.
  MarcoFalke:
    utACK 403e677c9e, though the diff still seems a bit bloated with some unnecessary changes in the second commit.
  promag:
    utACK 403e677 and rebased with current [master](c7cfd20a7).

Tree-SHA512: 6fcf260bb2dc201361170c0b4547405366f5f331fcc3a2bac29b24442814b7b244ca1b58aac5af716885f9a130c343b544590dff780da0bf835c7c5b3ccb2257
2019-06-05 11:56:23 +02:00
practicalswift
eca9767673 Make reasoning about dependencies easier by not including unused dependencies 2019-06-02 17:15:23 +02:00
Anthony Towns
0b282f9b00 Log early messages with -printtoconsole
This ensures log messages prior to StartLogging() are replayed to
the console as well as to the debug log file.
2019-05-28 14:26:42 -04:00
Anthony Towns
412987430c Replace OpenDebugLog() with StartLogging()
StartLogging() is used to mark the start of logging generically, whether
using -printtoconsole or -debuglogfile.
2019-05-28 14:26:06 -04:00
practicalswift
fb434159d1 Remove global symbols: Avoid using the global namespace if possible
Rename CCriticalSection to RecursiveMutex (both are AnnotatedMixin<std::recursive_mutex>)

```
$ git grep -E '(typedef|using).*(CCriticalSection|RecursiveMutex)'
src/sync.h:using RecursiveMutex = AnnotatedMixin<std::recursive_mutex>;
src/sync.h:typedef AnnotatedMixin<std::recursive_mutex> CCriticalSection;
```
2019-05-25 23:23:11 +02:00
Jonas Schnelli
7110d455eb
Merge #12980: Allow quicker shutdowns during LoadBlockIndex()
af5fa82b6 Allow quicker shutdowns during LoadBlockIndex() (Jonas Schnelli)

Pull request description:

ACKs for commit af5fa8:
  promag:
    utACK af5fa82b67.
  practicalswift:
    utACK af5fa82b67

Tree-SHA512: 1c64dcc5d8a9d3411553257cd5a598dcd29be981660e5bca9283c1d957dc56798abcf41d9969cd573088137597a23e48e62a8c476c463d3f176b86a10048f47b
2019-05-19 10:43:32 +02:00
Wladimir J. van der Laan
df7addc4c6
Merge #15990: Add tests and documentation for blocksonly
fa8ced32a6 doc: Mention blocksonly in reduce-traffic.md, unhide option (MarcoFalke)
fa320de79f test: Add test for p2p_blocksonly (MarcoFalke)
fa3872e7b4 test: Format predicate source as multiline on error (MarcoFalke)
fa1dce7329 net: Rename ::fRelayTxes to ::g_relay_txes (MarcoFalke)

Pull request description:

  This is de-facto no longer hidden

ACKs for commit fa8ced:
  jamesob:
    utACK fa8ced32a6

Tree-SHA512: 474fbdee6cbd035ed9068a066b6056c1f909ec7520be0417820fcd1672ab3069b53f55c5147968978d9258fd3a3933fe1a9ef8e4f6e14fb6ebbd79701a0a1245
2019-05-16 19:05:24 +02:00
James O'Beirne
3ccbc376dd refactoring: FlushStateToDisk -> CChainState
Also renames global methods for clarity:

- ::FlushStateToDisk() -> CChainState::ForceFlushStateToDisk()
  - This performs an unconditional flush.

- ::PruneAndFlush() -> CChainState::PruneAndFlush()
2019-05-16 09:06:54 -04:00
MarcoFalke
667a861741
Merge #14364: doc: Clarify -blocksdir usage
ccc27bdcd2 doc: Clarify -blocksdir usage (Daniel McNally)

Pull request description:

  This PR attempts to clarify and correct the `-blocksdir` argument description and default value. `-blocksdir` does not refer to the full path to the actual `blocks` directory, but rather the root/parent directory which contains the `blocks` directory. Accordingly, the default value is `<datadir>` and not `<datadir>/blocks` - this behavior of defaulting to the datadir can also be seen in init.cpp:

  ```cpp
      if (gArgs.IsArgSet("-blocksdir")) {
          path = fs::system_complete(gArgs.GetArg("-blocksdir", ""));
          if (!fs::is_directory(path)) {
              path = "";
              return path;
          }
      } else {
          path = GetDataDir(false);
      }
  ```

  It also attempts to clarify that only the `.dat` files containing block data are impacted by `-blocksdir`, not the index files.

  I believe this would close #12828.

ACKs for commit ccc27b:
  hebasto:
    utACK ccc27bdcd2

Tree-SHA512: 7b65f66b0579fd56e8c8cd4f9f22d6af56181817762a68deccd7fca51820ad82d9a0c48f5f1f012e746c67bcdae7af4555fad867cb620a9ca538d465c9d86c2b
2019-05-13 12:46:03 -04:00
MarcoFalke
fa8ced32a6
doc: Mention blocksonly in reduce-traffic.md, unhide option 2019-05-13 10:44:46 -04:00
MarcoFalke
fa1dce7329
net: Rename ::fRelayTxes to ::g_relay_txes
This helps to distinguish it from CNode::fRelayTxes and avoid bugs like
425278d17b
2019-05-09 09:10:53 -04:00
MarcoFalke
08788ce170
Merge #15890: Doc: remove text about txes always relayed from -whitelist
e0bb279999 Doc: remove text about txes always relayed from -whitelist (David A. Harding)

Pull request description:

  Updates text since -whitelistforcerelay was set to false by default in PR #15193.

ACKs for commit e0bb27:
  fanquake:
    utACK e0bb279
  MarcoFalke:
    utACK e0bb279999

Tree-SHA512: cf0c9321d72692d573039a04f8f1d048cbdf67ed86cc781523dabd3c45d2731b788f53749e6bb29d7da1ab44eb04030f352469b20489bb2a26c2c38fb61f6489
2019-05-08 15:59:42 -04:00
James O'Beirne
631940aab2 scripted-diff: replace chainActive -> ::ChainActive()
Though at the moment ChainActive() simply references `g_chainstate.m_chain`,
doing this change now clears the way for multiple chainstate usage and allows
us to script the diff.

-BEGIN VERIFY SCRIPT-
git grep -l "chainActive" | grep -E '(h|cpp)$' | xargs sed -i '/chainActive =/b; /extern CChain& chainActive/b; s/\(::\)\{0,1\}chainActive/::ChainActive()/g'
-END VERIFY SCRIPT-
2019-05-03 15:02:54 -04:00
MarcoFalke
12aa2ac988
Merge #15323: rpc: Expose g_is_mempool_loaded via getmempoolinfo
effe81f750 Move g_is_mempool_loaded into CTxMemPool::m_is_loaded (Ben Woosley)
bb8ae2c419 rpc: Expose g_is_mempool_loaded via getmempoolinfo and /rest/mempool/info.json (Ben Woosley)

Pull request description:

  And use it to fix a race condition in mempool_persist.py:
  https://travis-ci.org/Empact/bitcoin/jobs/487577243

  Since e.g. getrawmempool returns errors based on this status, this
  enables users to test it for readiness.

  Fixes #12863

ACKs for commit effe81:
  MarcoFalke:
    utACK effe81f750
  jnewbery:
    utACK effe81f750

Tree-SHA512: 74328b0c17a97efb8a000d4ee49b9a673c2b6dde7ea30c43a6a2eff961a233351c9471f9a42344412135786c02bdf2ee1b2526651bb8fed68bd94d2120c4ef86
2019-05-01 10:06:15 -04:00
MarcoFalke
2c35fe6238
Merge #15849: Thread names in logs and deadlock debug tools
8722e54e56 threads: add thread names to deadlock debugging message (James O'Beirne)
383b186c28 threads: prefix log messages with thread names (James O'Beirne)
ddd95ccb80 tests: add threadutil tests (James O'Beirne)
ae5f2b6a6c threads: introduce util/threadnames, refactor thread naming (James O'Beirne)
188ca75e5f disable HAVE_THREAD_LOCAL on unreliable platforms (James O'Beirne)

Pull request description:

  I'm resurrecting this one (from #13168) because I need it to make progress on #15735.

  It's now off by default and can be turned on with `-logthreadnames=1`.

  Ran some benchmarks (IBD from local peer from 500_000 -> 504_000) and it's within spitting distance either on or off:

  ### threadnames off (default)

  #### 2018-05-threadnames.3 vs. master (absolute)
  |                      name                      | iterations |   2018-05-threadnames.3    |           master           |
  |------------------------------------------------|-----------:|----------------------------|----------------------------|
  | ibd.local.500000.504000.dbcache=2048           |          3 | 376.1584 (± 9.2944)        | 392.3414 (± 13.4238)       |
  | ibd.local.500000.504000.dbcache=2048.mem-usage |          3 | 2236117.3333 (± 1845.9623) | 2238690.6667 (± 2669.3487) |

  #### 2018-05-threadnames.3 vs. master (relative)
  |                      name                      | iterations | 2018-05-threadnames.3 | master |
  |------------------------------------------------|-----------:|----------------------:|-------:|
  | ibd.local.500000.504000.dbcache=2048           |          3 |                     1 |  1.043 |
  | ibd.local.500000.504000.dbcache=2048.mem-usage |          3 |                     1 |  1.001 |

  ### threadnames on

  #### 2018-05-threadnames-take-2 vs. master (absolute)
  |                      name                      | iterations | 2018-05-threadnames-take-2 |           master           |
  |------------------------------------------------|-----------:|----------------------------|----------------------------|
  | ibd.local.500000.504000.dbcache=2048           |          3 | 367.6861 (± 0.3941)        | 364.1667 (± 0.9776)        |
  | ibd.local.500000.504000.dbcache=2048.mem-usage |          3 | 2238461.3333 (± 3697.8730) | 2237014.6667 (± 3307.6966) |

  #### 2018-05-threadnames-take-2 vs. master (relative)
  |                      name                      | iterations | 2018-05-threadnames-take-2 | master |
  |------------------------------------------------|-----------:|---------------------------:|-------:|
  | ibd.local.500000.504000.dbcache=2048           |          3 |                      1.010 |   1.00 |
  | ibd.local.500000.504000.dbcache=2048.mem-usage |          3 |                      1.001 |   1.00 |
  ```

ACKs for commit 8722e5:
  Empact:
    utACK 8722e54e56
  jnewbery:
    utACK 8722e54e56
  MarcoFalke:
    re-utACK 8722e54e56 (Only change since my previous review is DEFAULT_LOGTHREADNAMES=false and stylistic updates

Tree-SHA512: 50af992708295b8d680cf10025262dd964e599a356bdfc1dfc84fb18c00afabcb34d3d12d551b0677ff81f8fccad0e17c1d5b24dfecb953a913bc77fdd1a4577
2019-04-30 15:26:01 -04:00
James O'Beirne
383b186c28 threads: prefix log messages with thread names
Introduce a new flag (`-logthreadnames`) which allows toggling
of this behavior.
2019-04-29 13:49:15 -04:00
James O'Beirne
ae5f2b6a6c threads: introduce util/threadnames, refactor thread naming
This work is prerequisite to attaching thread names to log lines and deadlock
debug utilities. This code allows setting of an "internal" threadname per
thread on platforms where thread_local is available.

This commit also moves RenameThread() out of a more general module and adds a
numeric suffix to disambiguate between threads with the same name. It
explicitly names a few main threads using the new util::ThreadRename().
2019-04-29 13:42:25 -04:00
MarcoFalke
10852210bc
Merge #15877: doc: Fix -dustrelayfee= argument docs grammar
64491cb376 doc: Fix -dustrelayfee= argument docs grammar (keepkeyjon)

Pull request description:

ACKs for commit 64491c:
  fanquake:
    utACK 64491cb

Tree-SHA512: 562180e5bb065c71cda89555afd1cd5a54a98b058ab9006af3a6437fbbde46c7f3930b3fe98900bbb18f329057e00da81bc8290bdf6160d7eccc97d255b30e4b
2019-04-29 09:10:36 -04:00
practicalswift
a34081b7c3 Remove unused OpenSSL includes to make it more clear where OpenSSL is used 2019-04-29 12:53:24 +02:00
MarcoFalke
3356799ee3
Merge #15778: [wallet] Move maxtxfee from node to wallet
5c759c73b2 [wallet] Move maxTxFee to wallet (John Newbery)

Pull request description:

  Closes #15355

  Moves the `-maxtxfee` from the node to the wallet. See discussion in issue for details.

  This is a cleanup. There is no change in behaviour.

  Completes #15620

ACKs for commit 5c759c:
  MarcoFalke:
    utACK 5c759c73b2
  ryanofsky:
    utACK 5c759c73b2. Changes since last review: updated commit message and an error message and method name.
  meshcollider:
    utACK 5c759c73b2

Tree-SHA512: 2f9b2729da3940a5cda994d3f3bc11ee1a52fcc1c5e9842ea0ea63e4eb0300e8416853046776311298bc449ba07554aa46f0f245ce28598a5b0bd7347c12e752
2019-04-27 09:28:54 -04:00
David A. Harding
e0bb279999
Doc: remove text about txes always relayed from -whitelist
Updates text since -whitelistforcerelay was set to false by default in
PR #15193.
2019-04-25 13:11:33 -04:00
keepkeyjon
64491cb376
doc: Fix -dustrelayfee= argument docs grammar 2019-04-23 14:07:06 -06:00
MarcoFalke
4bd7187da8
Merge #15699: Remove no-op CClientUIInterface::[signal_name]_disconnect. Disconnect BlockNotifyGenesisWait and RPCNotifyBlockChange properly.
6dd469a3be Disconnect BlockNotifyGenesisWait and RPCNotifyBlockChange properly. Remove no-op CClientUIInterface::[signal_name]_disconnect. (practicalswift)

Pull request description:

  Resolves #15698.

  Changes:
  * Remove no-op `CClientUIInterface::[signal_name]_disconnect`.
  * Disconnect `BlockNotifyGenesisWait` and `RPCNotifyBlockChange` properly.

ACKs for commit 6dd469:
  MarcoFalke:
    utACK 6dd469a3be

Tree-SHA512: 0b50d658fa72261332bc57ddea379fd08f4bc1de392c10c628e20142d6fd244b606c39fd0665d6bc39324c1aa8c8814ac942b4659106279e33b90206aaf37411
2019-04-23 13:03:41 -04:00
MarcoFalke
ae2c19f578
Merge #15655: Resolve the checkpoints <-> validation circular dependency
418d3230f8 Resolve the checkpoints <-> validation CD. (251)

Pull request description:

  This pull request attempts to resolve the `checkpoints -> validation -> checkpoints` circular dependency.

  The circular dependency is resolved by moving the `CheckPoints::GetLastCheckpoint(const CCheckpointData& data)` function to `validation.cpp` where it used exclusively by the private function `ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const CChainParams& params, const CBlockIndex* pindexPrev, int64_t nAdjustedTime)`.

ACKs for commit 418d32:
  promag:
    utACK 418d323, only `GetLastCheckpoint` usage is in `validation.cpp` and so makes sense to move it there.
  practicalswift:
    utACK 418d3230f8
  MarcoFalke:
    utACK 418d3230f8
  sipa:
    utACK 418d3230f8

Tree-SHA512: 03c3556bc192e65f5e3fa76fd545d4ee7d63d3fb06b132f7a1fa6131aa21ddd2e5b2d19e2222dfe524f422daaca30efde219bed188db8c74ff4b088876b5bc16
2019-04-19 09:34:01 -04:00
John Newbery
5c759c73b2 [wallet] Move maxTxFee to wallet
This commit moves the maxtxfee setting to the wallet. There is only
one minor behavior change:

- an error message in feebumper now refers to -maxtxfee instead of
maxTxFee.
2019-04-18 11:34:42 -04:00
MarcoFalke
e4beef611a
Merge #14121: Index for BIP 157 block filters
c7efb652f3 blockfilter: Update BIP 158 test vectors. (Jim Posen)
19308c9e21 rpc: Add getblockfilter RPC method. (Jim Posen)
ff35105096 init: Add CLI option to enable block filter index. (Jim Posen)
accc8b8b18 index: Access functions for global block filter indexes. (Jim Posen)
2bc90e4e7b test: Unit test for block filter index reorg handling. (Jim Posen)
6bcf0998c0 test: Unit tests for block index filter. (Jim Posen)
b5e8200db7 index: Implement lookup methods on block filter index. (Jim Posen)
75a76e3619 index: Implement block filter index with write operations. (Jim Posen)
2ad2338ef9 serialize: Serialization support for big-endian 32-bit ints. (Jim Posen)
ba6ff9a6f7 blockfilter: Functions to translate filter types to/from names. (Jim Posen)
62b7a4f094 index: Ensure block locator is not stale after chain reorg. (Jim Posen)
4368384f1d index: Allow atomic commits of index state to be extended. (Jim Posen)

Pull request description:

  This introduces a new BlockFilterIndex class, which is required for BIP 157 support.

  The index is uses the asynchronous BaseIndex infrastructure driven by the ValidationInterface callbacks. Filters are stored sequentially in flat files and the disk location of each filter is indexed in LevelDB along with the filter hash and header. The index is designed to ensure persistence of filters reorganized out of the main chain to simplify the BIP 157 net implementation.

  Stats (block height = 565500):
  - Syncing the index from scratch takes 45m
  - Total index size is 3.8 GiB

ACKs for commit c7efb6:
  MarcoFalke:
    utACK c7efb652f3
  ryanofsky:
    Slightly tested ACK c7efb652f3 (I just rebuilt the index with the updated PR and tested the RPC). Changes since last review: rebase, fixed compile errors in internal commits, new comments, updated error messages, tweaked cache size logic, renamed commit method, renamed constants and globals, fixed whitespace, extra BlockFilterIndex::Init error check.

Tree-SHA512: f8ed7a9b6f76df45933aa5eba92b27b3af83f6df2ccb3728a5c89eec80f654344dc14f055f6f63eb9b3a7649dd8af6553fe14969889e7e2fd2f8461574d18f28
2019-04-18 09:48:25 -04:00
Wladimir J. van der Laan
6a135fbe5b
Merge #15638: Move-only: Pull wallet code out of libbitcoin_server
4d074e84a2 [build] Move AnalyzePSBT from psbt.cpp to node/psbt.cpp (Russell Yanofsky)
fd509bd1f7 [docs] Document src subdirectories and different libraries (John Newbery)
9eaeb7fb8d [build] Move wallet load functions to wallet/load unit (John Newbery)
91a25d1e71 [build] Add several util units (John Newbery)
99517866b6 [build] Move several units into common libraries (John Newbery)
0509465542 [build] Move rpc rawtransaction util functions to rpc/rawtransaction_util.cpp (John Newbery)
1acc61f874 [build] Move rpc utility methods to rpc/util (John Newbery)
4a75c9d651 [build] Move policy settings to new src/policy/settings unit (John Newbery)
fdf8888b6f [build] Move CheckTransaction from lib_server to lib_consensus (John Newbery)

Pull request description:

  This is a move-only commit. No code is changing and the moves can be easily verified with:

  ```sh
  git log -p -n1 --color-moved=dimmed_zebra
  ```

  This commit moves functions and variables that wallet code depends on out of libbitcoin_server.a, so the bitcoin-wallet tool can be built without libbitcoin_server.a in #15639, and attempting to access server state from wallet code will result in link errors instead of silently broken code.

  List of moves:

  - `CheckTransaction` moves from `consensus/tx_verify.cpp` to `consensus/tx_check.cpp`
  - `urlDecode` moves from `httpserver.cpp` to `util/url.cpp`
  - `TransactionErrorString` moves from `node/transaction.cpp` to `util/error.cpp`
  - `StringForFeeReason` and `FeeModeFromString` move from `policy/fees.cpp` to `util/fees.cpp`
  - `incrementalRelayFee` `dustRelayFee` and `nBytesPerSigOp` move from `policy/policy.cpp` to `policy/settings.cpp`
  - `SignalsOptInRBF` moves from `policy/rbf.cpp` to `util/rbf.cpp`
  - `fIsBareMultisigStd` moves from `validation.cpp` to `policy/settings.cpp`
  - `ConstructTransaction` `TxInErrorToJSON` and `SignTransaction` move from `rpc/rawtransaction.cpp` to `rpc/rawtransaction_util.cpp`
  - `RPCTypeCheck` `RPCTypeCheckArgument` `RPCTypeCheckObj` `AmountFromValue` `ParseHashV``ParseHashO` `ParseHexV` `ParseHexO` `HelpExampleCli` and `HelpExampleRpc` move from `rpc/server.cpp` to `rpc/util.cpp`
  - `AmountHighWarn` and `AmountErrMsg` move from `ui_interface.cpp` to `util/error.cpp`
  - `FormatStateMessage` and `strMessageMagic` move from `validation.cpp` to `util/validation.cpp`
  - `VerifyWallets` `LoadWallets` `StartWallets` `FlushWallets` `StopWallets` and `UnloadWallets` move from `wallet/init.cpp` to `wallet/node.cpp`

ACKs for commit 4d074e:
  jnewbery:
    utACK 4d074e84a2 (checked by doing the rebase myself and verifying no difference between my branch and 4d074e84a2)

Tree-SHA512: 5e1604a9fb06475f2b96da0de0baa8330f4dda834dc20a0183ef11e1e4c27631d1d1bbb9abf0054efc03d56945fdf9920f63366b6a4f200f665b742a479ff75c
2019-04-10 15:51:37 +02:00
MarcoFalke
5392aee64f
Merge #15629: init: Throw error when network specific config is ignored
fae38c3dc6 doc: Fix all typos reported by codespell (MarcoFalke)
fa9058f0ed doc: Add release notes for 15629 (MarcoFalke)
fa4a922d78 qa: Add test for missing testnet section in conf file (MarcoFalke)
dddd6f0f58 init: Throw error when network specific config is ignored (MarcoFalke)

Pull request description:

  This should have no effect on mainnet users, but simplifies testing, where config settings are currently ignored with only a warning. Fix this by making it an error.

  Issues:
  *  bitcoin client 0.17.0 ignores wallet's name (file) #14523
  *  Can't set custom rpcport on testnet #13777
  * ...

ACKs for commit fae38c:

Tree-SHA512: 2e209526898eea6e444c803ec2666989cee4ca137492d32984998733c50a70056cb54657df8dc3027a6a0612738a8afce0bc35824b868c5f22281e00e0188530
2019-04-09 21:14:49 -04:00
John Newbery
91a25d1e71 [build] Add several util units
Adds the following util units and adds them to libbitcoin_util:

- `util/url.cpp` takes `urlDecode` from `httpserver.cpp`
- `util/error.cpp` takes `TransactionErrorString` from
  `node/transaction.cpp` and `AmountHighWarn` and `AmountErrMsg` from
  `ui_interface.cpp`
- `util/fees.cpp` takes `StringForFeeReason` and `FeeModeFromString` from `policy/fees.cpp`
- `util/rbf.cpp` takes `SignalsOptInRBF` from `policy/rbf.cpp`
- 'util/validation.cpp` takes `FormatStateMessage` and `strMessageMagic` from 'validation.cpp`
2019-04-09 17:53:08 -04:00
John Newbery
4a75c9d651 [build] Move policy settings to new src/policy/settings unit
This moves the following policy settings functions and globals to a new
src/policy/settings unit in lib_server:

- `incrementalRelayFee`
- `dustRelayFee`
- `nBytesPerSigOp`
- `fIsBareMultisigStd`

These settings are only required by the node and should not be accessed
by other libraries.
2019-04-09 17:53:08 -04:00
Jim Posen
ff35105096 init: Add CLI option to enable block filter index. 2019-04-06 12:10:55 -07:00
practicalswift
6dd469a3be Disconnect BlockNotifyGenesisWait and RPCNotifyBlockChange properly. Remove no-op CClientUIInterface::[signal_name]_disconnect. 2019-03-29 19:34:53 +01:00
251
418d3230f8 Resolve the checkpoints <-> validation CD.
This commit resolves the checkpoints -> validation -> checkpoints
cirular dependency by moving
`CheckPoints::GetLastCheckpoint(const CCheckpointData& data)` from
`checkpoints.cpp` to `validation.cpp`.
2019-03-23 17:43:54 +01:00
Ben Woosley
effe81f750
Move g_is_mempool_loaded into CTxMemPool::m_is_loaded
So the loaded state is explicitly mempool-specific.
2019-03-22 02:31:25 -07:00
MarcoFalke
dddd6f0f58
init: Throw error when network specific config is ignored 2019-03-19 16:30:07 -04:00
MarcoFalke
fa96d76421
rpc: Uncouple rpcs from maxTxFee global 2019-03-18 13:56:56 -04:00
Wladimir J. van der Laan
3db0cc3947
Merge #15402: Granular invalidateblock and RewindBlockIndex
519b0bc5dc Make last disconnected block BLOCK_FAILED_VALID, even when aborted (Pieter Wuille)
8d220417cd Optimization: don't add txn back to mempool after 10 invalidates (Pieter Wuille)
9ce9c37004 Prevent callback overruns in InvalidateBlock and RewindBlockIndex (Pieter Wuille)
9bb32eb571 Release cs_main during InvalidateBlock iterations (Pieter Wuille)
9b1ff5c742 Call InvalidateBlock without cs_main held (Pieter Wuille)
241b2c74ac Make RewindBlockIndex interruptible (Pieter Wuille)
880ce7d46b Call RewindBlockIndex without cs_main held (Pieter Wuille)
436f7d735f Release cs_main during RewindBlockIndex operation (Pieter Wuille)
1d342875c2 Merge the disconnection and erasing loops in RewindBlockIndex (Pieter Wuille)
32b2696ab4 Move erasure of non-active blocks to a separate loop in RewindBlockIndex (Pieter Wuille)
9d6dcc52c6 Abstract EraseBlockData out of RewindBlockIndex (Pieter Wuille)

Pull request description:

  This PR makes a number of improvements to the InvalidateBlock (`invalidateblock` RPC) and RewindBlockIndex functions, primarily around breaking up their long-term cs_main holding. In addition:
  * They're made safely interruptible (`bitcoind` can be shutdown, and no progress in either will be lost, though if incomplete, `invalidateblock` won't continue after restart and will need to be called again)
  * The validation queue is prevented from overflowing (meaning `invalidateblock` on a very old block will not drive bitcoind OOM) (see #14289).
  * `invalidateblock` won't bother to move transactions back into the mempool after 10 blocks (optimization).

  This is not an optimal solution, as we're relying on the scheduler call sites to make sure the scheduler doesn't overflow. Ideally, the scheduler would guarantee this directly, but that needs a few further changes (moving the signal emissions out of cs_main) to prevent deadlocks.

  I have manually tested the `invalidateblock` changes (including interrupting, and running with -checkblockindex and -checkmempool), but haven't tried the rewinding (which is probably becoming increasingly unnecessary, as very few pre-0.13.1 nodes remain that would care to upgrade).

Tree-SHA512: 692e42758bd3d3efc2eb701984a8cb5db25fbeee32e7575df0183a00d0c2c30fdf72ce64c7625c32ad8c8bdc56313da72a7471658faeb0d39eefe39c4b8b8474
2019-03-07 17:40:58 +01:00
Wladimir J. van der Laan
2d46f1be0c
Merge #15118: Refactor block file logic
04cca33094 Style cleanup. (Jim Posen)
4c01e4e159 flatfile: Unit tests for FlatFileSeq methods. (Jim Posen)
65a489e93d scripted-diff: Rename CBlockDiskPos to FlatFilePos. (Jim Posen)
d6d8a78f26 Move CDiskBlockPos from chain to flatfile. (Jim Posen)
e0380933e3 validation: Refactor file flush logic into FlatFileSeq. (Jim Posen)
992404b31e validation: Refactor block file pre-allocation into FlatFileSeq. (Jim Posen)
e2d2abb99f validation: Refactor OpenDiskFile into method on FlatFileSeq. (Jim Posen)
9183d6ef65 validation: Extract basic block file logic into FlatFileSeq class. (Jim Posen)
62e7addb63 util: Move CheckDiskSpace to util. (Jim Posen)

Pull request description:

  This cleans up and refactors block file helpers so that they may be used by the block filter indexer. Per [design discussion](https://github.com/bitcoin/bitcoin/pull/14121#issuecomment-451252591) about storing BIP 157 block filters, it has been suggested that they are stored in the same way as block and undo data. This refactor is sufficient to simplify file operations for this use case, though in the future perhaps more pruning-related logic ought to be moved into the new classes.

  The basic abstraction is a `FlatFileSeq` which manages access to a sequence of numbered files into which raw data is written.

Tree-SHA512: b2108756777f2dad8964a1a2ef2764486e708a4a4a8cfac47b5de8bcb0625388964438eb096b10cfd9ea39212c299b5cb32fa943e768db2333cf49ea7def157e
2019-03-02 23:20:38 +01:00
MarcoFalke
789b0bbf2a
Merge #15335: Fix lack of warning of unrecognized section names
1a7ba84e11 Fix lack of warning of unrecognized section names (Akio Nakamura)

Pull request description:

  In #14708, It was introduced that to warn when unrecognized section names are exist in the config file.
  But ```m_config_sections.clear()```  in ```ArgsManager::ReadConfigStream()``` is called every time when reading each configuration file, so it can warn about only last reading file if ```includeconf``` exists.

  This PR fix lack of warning by collecting all section names by moving ```m_config_sections.clear()```  to ```ArgsManager::ReadConfigFiles()``` .
  Also add a test code to confirm this situation.

Tree-SHA512: 26aa0cbe3e4ae2e58cbe73d4492ee5cf465fd4c3e5df2c8ca7e282b627df9e637267af1e3816386b1dc6db2398b31936925ce0e432219fec3a9b3398f01e3e65
2019-03-02 09:59:18 -05:00
Wladimir J. van der Laan
b4fc5257b7
Merge #15456: Enable PID file creation on WIN
3f5ad622e5 Enable PID file creation on Windows - Add available WIN PID function - Consider WIN32 in each relevant case - Add new preprocessor definitions to suppress warning - Update error message for generic OS (riordant)

Pull request description:

  # Introduction

  As discussed with @laanwj on IRC:

  - PID file creation was never enabled for Windows, as the `pid_t` filetype is not available for it. However, the WIN32 API contains the header [`Processthreadsapi.h`](https://github.com/CodeShark/x86_64-w64-mingw32/blob/master/include/processthreadsapi.h) which in turn contains the function [`GetCurrentProcessId()`](https://docs.microsoft.com/en-gb/windows/desktop/api/processthreadsapi/nf-processthreadsapi-getcurrentprocessid). ~~This function is called at a higher level by [`_getpid()`](https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/getpid?view=vs-2017)~~ EDIT: `_getpid()` is not available to the MSVC compiler used in the AppVeyor build. As a result, I have changed the function call to`GetCurrentProcessId()`, which performs the same function and is available to both MinGW & MSVC.
  This allows one to capture the PID in Windows, without any additional includes - the above function is already available.

  - Within this PR, I have added a separate line that calls `GetCurrentProcessId()` in the case of a WIN compilation, and the usual `getpid()` otherwise. All code blocks processing PID file logic that avoid WIN32 have been changed to consider it. I have also updated the preprocessor definitions in `libbitcoin_server.vcxproj.in` to suppress a warning related to `std::strerror` for the MSVC build, that was causing the AppVeyor build to fail (see @fanquake comment below).

  # Rationale
  - Consistency between OS's running Bitcoin
      - Applications which build off of `bitcoind`, such as novel front-end clients, often need access to the PID in order to control the daemon. Instead of designing some alternate way of doing this for one system, it should be consistent between all of them.

  In collaboration with @joernroeder

Tree-SHA512: 22fcbf866e99115d12ed29716e68d200d4c118ae2f7b188b7705dc0cf5f0cd0ce5fb18f772744c6238eecd9e6d0922c615e2f0e12a7fe7c810062a79d97aa6a2
2019-02-25 13:20:01 +01:00