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Merge #12151: rpc: Remove cs_main lock from blockToJSON and blockheaderToJSON

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b9f226b41f rpc: Remove cs_main lock from blockToJSON and blockHeaderToJSON (João Barbosa)
343b98cbcd rpc: Specify chain tip instead of chain in GetDifficulty (João Barbosa)
54dc13b6a2 rpc: Fix SoftForkMajorityDesc and SoftForkDesc signatures (João Barbosa)

Pull request description:

  Motivated by https://github.com/bitcoin/bitcoin/pull/11913#discussion_r157798157, this pull makes `blockToJSON` and `blockheaderToJSON` free of `cs_main` locks.

  Locking `cs_main` was required to access `chainActive` in order to check if the block was in the chain and to retrieve the next block index.

  With the this approach, `CBlockIndex::GetAncestor()` is used in a way to check if the block belongs to the specified chain tip and, at the same time, get the next block index.

Tree-SHA512: a6720ace0182c19033bbed1a404f729d793574db8ab16e0966ffe412145611e32c30aaab02975d225df6d439d7b9ef2070e732b16137a902b0293c8cddfeb85f
This commit is contained in:
MarcoFalke
2019-01-04 12:30:36 +01:00
parent 5b6b371c77 b9f226b41f
commit f7e182a973
4 changed files with 37 additions and 48 deletions
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7
src/test/blockchain_tests.cpp
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@@ -68,11 +68,4 @@ BOOST_AUTO_TEST_CASE(get_difficulty_for_very_high_target)
TestDifficulty(0x12345678, 5913134931067755359633408.0);
}
// Verify that difficulty is 1.0 for an empty chain.
BOOST_AUTO_TEST_CASE(get_difficulty_for_null_tip)
{
double difficulty = GetDifficulty(nullptr);
RejectDifficultyMismatch(difficulty, 1.0);
}
BOOST_AUTO_TEST_SUITE_END()