Pieter Wuille d33a9218ab Make SetBestChain() atomic ...

In case a reorganisation fails, the internal state could become
inconsistent (memory only). Previously, a cache per block connect
or disconnect action was used, so blocks could not be applied in
a partial way. Extend this to a cache for the entire reorganisation,
making it atomic entirely. This also simplifies the code a bit.

2012-12-02 01:43:35 +01:00

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