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authorJeffrey Wilcke <jeffrey@ethereum.org>2017-02-02 05:36:51 +0800
committerJeffrey Wilcke <jeffrey@ethereum.org>2017-05-18 15:05:58 +0800
commit10a57fc3d45cbc59d6c8eeb0f7f2b93a71e8f4c9 (patch)
tree170eb09bf51c802894d9335570d7319a2f86ef15 /eth/downloader/metrics.go
parenta2f23ca9b181fa4409fdee3076316f3127038b9b (diff)
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consensus, core/*, params: metropolis preparation refactor
This commit is a preparation for the upcoming metropolis hardfork. It prepares the state, core and vm packages such that integration with metropolis becomes less of a hassle. * Difficulty calculation requires header instead of individual parameters * statedb.StartRecord renamed to statedb.Prepare and added Finalise method required by metropolis, which removes unwanted accounts from the state (i.e. selfdestruct) * State keeps record of destructed objects (in addition to dirty objects) * core/vm pre-compiles may now return errors * core/vm pre-compiles gas check now take the full byte slice as argument instead of just the size * core/vm now keeps several hard-fork instruction tables instead of a single instruction table and removes the need for hard-fork checks in the instructions * core/vm contains a empty restruction function which is added in preparation of metropolis write-only mode operations * Adds the bn256 curve * Adds and sets the metropolis chain config block parameters (2^64-1)
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