fanquake 2de0559f2c
Merge bitcoin/bitcoin#27189: util: Use steady clock in SeedStrengthen, FindBestImplementation, FlushStateToDisk
fa1b4e5c3294fc9aec033892a4a4d7b5cfc015aa Use steady clock in FlushStateToDisk (MarcoFalke)
1111e2f8b43cd9ed62dcf6b571a224b84fc421fd Use steady clock in SeedStrengthen and FindBestImplementation (MarcoFalke)

Pull request description:

  There may be a theoretical deadlock for the duration of the offset when the system clock is adjusted into a past time while executing `SeedStrengthen`.

  Fix this by using steady clock.

  Do the same in `FindBestImplementation`, which shouldn't be affected, because it discards outlier measurements. However, doing the same there for consistency seems fine.

  Do the same in `FlushStateToDisk`, which should make the flushes more steady, if the system clock is adjusted by a large offset.

ACKs for top commit:
  john-moffett:
    ACK fa1b4e5c3294fc9aec033892a4a4d7b5cfc015aa
  willcl-ark:
    ACK fa1b4e5c3

Tree-SHA512: cc625e796b186accd53222bd64eb57d0512bc7e588312d254349b542bbc5e5daac348ff2b3b3f7dc5ae0bbbae2ec11fdbf3022cf2164211633765a4b0108e83e
2023-03-08 08:48:41 +01:00
..
2022-12-24 23:49:50 +00:00
2022-12-24 23:49:50 +00:00

src/node/

The src/node/ directory contains code that needs to access node state (state in CChain, CBlockIndex, CCoinsView, CTxMemPool, and similar classes).

Code in src/node/ is meant to be segregated from code in src/wallet/ and src/qt/, to ensure wallet and GUI code changes don't interfere with node operation, to allow wallet and GUI code to run in separate processes, and to perhaps eventually allow wallet and GUI code to be maintained in separate source repositories.

As a rule of thumb, code in one of the src/node/, src/wallet/, or src/qt/ directories should avoid calling code in the other directories directly, and only invoke it indirectly through the more limited src/interfaces/ classes.

This directory is at the moment sparsely populated. Eventually more substantial files like src/validation.cpp and src/txmempool.cpp might be moved there.