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Implement zmq notifications for chainlocked blocks #2899

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merged 2 commits into from
May 8, 2019

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UdjinM6
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@UdjinM6 UdjinM6 commented May 3, 2019

Few notes:

  • the first commit isn't directly related, it moves things around to make the actual commit clearer/easier to review;
  • notifications do not push the chainlock itself or its hash, instead they push the chainlocked block or its hash respectively, just like txlock messages do (they push the tx or its hash).

@UdjinM6 UdjinM6 added this to the 14.0 milestone May 3, 2019
return false;
}

ss << block;

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Doesn't this push the whole block instead of just the header?

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Yes, why?

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Oh, I see 🙈 fixed the description 😊

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Isn't this overkill? I'd assume that listeners already listen for blocks through other notifications, so this would usually generate duplicate data?

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The use cases for these "lock" notifications is when you want to ignore "normal" notifications in some way and at the same time you want to avoid querying rpc to get the actual data. For example, if you need smth like "I'm only interested in locked blocks" - use rawchainlock (you don't need rawblock in this case). If instead you want smth like "I'm interested in all blocks and also I want to know when some of them are locked" then you need a rawblock+hashchainlock combination (should be trivial to calculate the hash from the block itself and match them).

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Let's ping @snogcel to see if I understand these use cases correctly :)

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@UdjinM6 summarized the use cases perfectly - rawchainlock provides a lot of data but can be thought of as a replacement for the hashchainlock + getblock (JSON-RPC) combination you'd see otherwise.

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ok, understood

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utACK

@UdjinM6 UdjinM6 merged commit 89f6f75 into dashpay:develop May 8, 2019
MIPPL pushed a commit to biblepay/biblepay that referenced this pull request Jun 16, 2019
* commit '05adda99fe09f9f6d99ce09e22ed89be3ddfcd27': (530 commits)
  Update release notes with latest commits (dashpay#2958)
  Only require valid collaterals for votes and triggers (dashpay#2947) (dashpay#2957)
  [v0.14.0.x] Fix off-by-one error in InstantSend mining info removal when disconnecting blocks (dashpay#2951)
  [v0.14.0.x] bump version to 0.14.0.1 and prepare release notes (dashpay#2952)
  Update release notes v14 (dashpay#2927)
  Set CLIENT_VERSION_IS_RELEASE to true (dashpay#2926)
  Update help text via gen-manpages.sh (dashpay#2929)
  0.14 release notes draft (dashpay#2896)
  Fix duplicate `-instantsendnotify` invocation (dashpay#2925)
  Add blocks conflicting with ChainLocks to block index (dashpay#2923)
  Skip processing in SyncTransaction when chain is not synced yet (dashpay#2920)
  Set DIP0008 mainnet activation params (dashpay#2915)
  [0.14] Bump chainparams (dashpay#2910)
  Fix db leaks in LLMQ db (dashpay#2914)
  Fall back to ReadBlockFromDisk when blockTxs is not filled yet (dashpay#2908)
  Bump "keepOldConnections" by one for all LLMQ types (dashpay#2909)
  Print inputs on which we voted and quorums used for signing (dashpay#2907)
  Implement integration tests for DKG error handling (dashpay#2905)
  Implement zmq notifications for chainlocked blocks (dashpay#2899)
  Properly handle conflicts between ChainLocks and InstantSend (dashpay#2904)
  ...

# Conflicts:
#	.travis.yml
#	COPYING
#	README.md
#	biblepay-docs/protocol-documentation.md
#	ci/matrix.sh
#	configure.ac
#	contrib/debian/examples/biblepay.conf
#	contrib/gitian-descriptors/gitian-linux.yml
#	contrib/gitian-descriptors/gitian-osx.yml
#	contrib/gitian-descriptors/gitian-win.yml
#	doc/README.md
#	doc/README_windows.txt
#	doc/dnsseed-policy.md
#	doc/files.md
#	doc/guide-startmany.md
#	doc/man/biblepay-cli.1
#	doc/man/biblepay-qt.1
#	doc/man/biblepay-tx.1
#	doc/man/biblepayd.1
#	doc/masternode-budget.md
#	doc/masternode_conf.md
#	doc/release-notes.md
#	qa/pull-tester/rpc-tests.py
#	qa/rpc-tests/autoix-mempool.py
#	qa/rpc-tests/dip3-deterministicmns.py
#	qa/rpc-tests/fundrawtransaction.py
#	qa/rpc-tests/maxblocksinflight.py
#	qa/rpc-tests/p2p-acceptblock.py
#	qa/rpc-tests/test_framework/comptool.py
#	qa/rpc-tests/test_framework/mininode.py
#	qa/rpc-tests/test_framework/test_framework.py
#	qa/rpc-tests/test_framework/util.py
#	qa/rpc-tests/wallet-hd.py
#	share/setup.nsi.in
#	src/Makefile.am
#	src/Makefile.bench.include
#	src/Makefile.qt.include
#	src/Makefile.qttest.include
#	src/Makefile.test.include
#	src/activemasternode.cpp
#	src/activemasternode.h
#	src/biblepayd.cpp
#	src/cachemap.h
#	src/cachemultimap.h
#	src/chainparams.cpp
#	src/clientversion.h
#	src/dsnotificationinterface.cpp
#	src/evo/deterministicmns.cpp
#	src/evo/providertx.cpp
#	src/evo/simplifiedmns.cpp
#	src/governance-classes.cpp
#	src/governance-classes.h
#	src/governance-object.cpp
#	src/governance-object.h
#	src/governance-vote.cpp
#	src/governance.cpp
#	src/governance.h
#	src/hash.h
#	src/hdchain.cpp
#	src/hdchain.h
#	src/init.cpp
#	src/instantx.cpp
#	src/instantx.h
#	src/keepass.cpp
#	src/keepass.h
#	src/llmq/quorums_blockprocessor.cpp
#	src/llmq/quorums_dummydkg.cpp
#	src/llmq/quorums_dummydkg.h
#	src/llmq/quorums_init.cpp
#	src/llmq/quorums_init.h
#	src/llmq/quorums_utils.cpp
#	src/llmq/quorums_utils.h
#	src/masternode-payments.cpp
#	src/masternode-payments.h
#	src/masternode-sync.cpp
#	src/masternode-sync.h
#	src/masternode.cpp
#	src/masternode.h
#	src/masternodeconfig.cpp
#	src/masternodeconfig.h
#	src/masternodeman.cpp
#	src/masternodeman.h
#	src/messagesigner.cpp
#	src/messagesigner.h
#	src/miner.cpp
#	src/net.cpp
#	src/net_processing.cpp
#	src/netfulfilledman.cpp
#	src/netfulfilledman.h
#	src/privatesend-client.cpp
#	src/privatesend-client.h
#	src/privatesend-server.cpp
#	src/privatesend-server.h
#	src/privatesend.cpp
#	src/privatesend.h
#	src/qt/askpassphrasedialog.cpp
#	src/qt/biblepay.cpp
#	src/qt/bitcoinaddressvalidator.cpp
#	src/qt/bitcoingui.cpp
#	src/qt/bitcoinunits.cpp
#	src/qt/bitcoinunits.h
#	src/qt/clientmodel.cpp
#	src/qt/coincontroldialog.cpp
#	src/qt/dashstrings.cpp
#	src/qt/editaddressdialog.cpp
#	src/qt/forms/intro.ui
#	src/qt/forms/masternodelist.ui
#	src/qt/guiconstants.h
#	src/qt/guiutil.cpp
#	src/qt/intro.cpp
#	src/qt/locale/biblepay_ar.ts
#	src/qt/locale/biblepay_bg.ts
#	src/qt/locale/biblepay_de.ts
#	src/qt/locale/biblepay_en.ts
#	src/qt/locale/biblepay_es.ts
#	src/qt/locale/biblepay_fi.ts
#	src/qt/locale/biblepay_fr.ts
#	src/qt/locale/biblepay_it.ts
#	src/qt/locale/biblepay_ja.ts
#	src/qt/locale/biblepay_ko.ts
#	src/qt/locale/biblepay_nl.ts
#	src/qt/locale/biblepay_pl.ts
#	src/qt/locale/biblepay_pt.ts
#	src/qt/locale/biblepay_ru.ts
#	src/qt/locale/biblepay_sk.ts
#	src/qt/locale/biblepay_th.ts
#	src/qt/locale/biblepay_tr.ts
#	src/qt/locale/biblepay_vi.ts
#	src/qt/locale/biblepay_zh_CN.ts
#	src/qt/locale/biblepay_zh_TW.ts
#	src/qt/networkstyle.h
#	src/qt/openuridialog.cpp
#	src/qt/optionsdialog.cpp
#	src/qt/optionsmodel.cpp
#	src/qt/overviewpage.cpp
#	src/qt/res/images/light/about.png
#	src/qt/res/images/light/drkblue_walletFrame_bg.png
#	src/qt/rpcconsole.cpp
#	src/qt/sendcoinsdialog.cpp
#	src/qt/sendcoinsentry.cpp
#	src/qt/splashscreen.cpp
#	src/qt/transactiondesc.cpp
#	src/qt/transactionrecord.cpp
#	src/qt/utilitydialog.cpp
#	src/qt/walletmodel.cpp
#	src/rpc/blockchain.cpp
#	src/rpc/client.cpp
#	src/rpc/governance.cpp
#	src/rpc/masternode.cpp
#	src/rpc/mining.cpp
#	src/rpc/misc.cpp
#	src/rpc/net.cpp
#	src/rpc/rawtransaction.cpp
#	src/rpc/rpcevo.cpp
#	src/rpc/server.cpp
#	src/spork.cpp
#	src/spork.h
#	src/test/bip39_tests.cpp
#	src/test/cachemap_tests.cpp
#	src/test/cachemultimap_tests.cpp
#	src/test/governance_validators_tests.cpp
#	src/test/miner_tests.cpp
#	src/test/ratecheck_tests.cpp
#	src/test/test_biblepay.h
#	src/uint256.h
#	src/util.cpp
#	src/util.h
#	src/validation.cpp
#	src/validation.h
#	src/version.h
#	src/wallet/rpcdump.cpp
#	src/wallet/rpcwallet.cpp
#	src/wallet/wallet.cpp
#	src/wallet/wallet.h
#	src/wallet/walletdb.cpp
@UdjinM6 UdjinM6 deleted the zmqchainlock branch November 26, 2020 13:29
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3 participants