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consensus: Fix makedag epoch

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`geth makedag <blocknumber> <path>` was creating DAGs for
`<blocknumber>/<epoch_length> + 1`, hence
it was impossible to create an epoch 0 DAG.

This fixes the calculations in `consensus/ethash/ethash.go` for
`MakeDataset` and `MakeCache`, and applies `gofmt`.
This commit is contained in:
Konrad Feldmeier 2017-06-08 10:38:36 +02:00
parent 80f7c6c299
commit 2fefe4baa0
1 changed files with 2 additions and 2 deletions
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4
consensus/ethash/ethash.go
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@ -308,14 +308,14 @@ func (d *dataset) release() {
// MakeCache generates a new ethash cache and optionally stores it to disk. // MakeCache generates a new ethash cache and optionally stores it to disk.
func MakeCache(block uint64, dir string) { func MakeCache(block uint64, dir string) {
c := cache{epoch: block/epochLength + 1} c := cache{epoch: block / epochLength}
c.generate(dir, math.MaxInt32, false) c.generate(dir, math.MaxInt32, false)
c.release() c.release()
} }
// MakeDataset generates a new ethash dataset and optionally stores it to disk. // MakeDataset generates a new ethash dataset and optionally stores it to disk.
func MakeDataset(block uint64, dir string) { func MakeDataset(block uint64, dir string) {
d := dataset{epoch: block/epochLength + 1} d := dataset{epoch: block / epochLength}
d.generate(dir, math.MaxInt32, false) d.generate(dir, math.MaxInt32, false)
d.release() d.release()
} }