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les: historical data garbage collection (#19570)

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This change introduces garbage collection for the light client. Historical
chain data is deleted periodically. If you want to disable the GC, use
the --light.nopruning flag.
This commit is contained in:
gary rong
2020-07-13 17:02:54 +08:00
committed by GitHub
parent b8dd0890b3
commit 6eef141aef
45 changed files with 841 additions and 213 deletions
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7
les/api_backend.go
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@ -162,8 +162,11 @@ func (b *LesApiBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*typ
return nil, nil
}
func (b *LesApiBackend) GetTd(hash common.Hash) *big.Int {
return b.eth.blockchain.GetTdByHash(hash)
func (b *LesApiBackend) GetTd(ctx context.Context, hash common.Hash) *big.Int {
if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
return b.eth.blockchain.GetTdOdr(ctx, hash, *number)
}
return nil
}
func (b *LesApiBackend) GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header) (*vm.EVM, func() error, error) {