Callum Waters 6be0e13823 lite2: prune-headers (#4478) ...

closes #4469

Improved speed of cleanup by using SignedHeaderAfter instead of TrustedHeader to jump from header to header.

Prune() is now called when a new header and validator set are saved and is a function dealt by the database itself

## Commits:

* prune headers and vals

* modified cleanup and tests

* fixes after my own review

* implement Prune func

* make db ops concurrently safe

* use Iterator in SignedHeaderAfter

we should iterate from height+1, not from the end!

* simplify cleanup

Co-authored-by: Anton Kaliaev <anton.kalyaev@gmail.com>

2020-02-27 14:57:17 +01:00

..

db

lite2: prune-headers (#4478)

2020-02-27 14:57:17 +01:00

errors.go

lite2: store current validator set (#4472)

2020-02-26 10:20:51 +01:00

store.go

lite2: prune-headers (#4478)

2020-02-27 14:57:17 +01:00