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snapshot: iteration and buffering optimizations

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This commit is contained in:
Martin Holst Swende
2019-10-23 15:19:02 +02:00
committed by Péter Szilágyi
parent d7d81d7c12
commit cdf3f016df
5 changed files with 96 additions and 17 deletions
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18
core/state/snapshot/snapshot_test.go
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@ -205,6 +205,15 @@ func TestDiffLayerExternalInvalidationPartialFlatten(t *testing.T) {
}
ref := snaps.Snapshot(common.HexToHash("0x02"))
// Doing a Cap operation with many allowed layers should be a no-op
exp := len(snaps.layers)
if err := snaps.Cap(common.HexToHash("0x04"), 2000, 1024*1024); err != nil {
t.Fatalf("failed to flatten diff layer into accumulator: %v", err)
}
if got := len(snaps.layers); got != exp {
t.Errorf("layers modified, got %d exp %d", got, exp)
}
// Flatten the diff layer into the bottom accumulator
if err := snaps.Cap(common.HexToHash("0x04"), 2, 1024*1024); err != nil {
t.Fatalf("failed to flatten diff layer into accumulator: %v", err)
@ -277,6 +286,10 @@ func TestPostCapBasicDataAccess(t *testing.T) {
if err := checkExist(snap, "0xb3"); err != nil {
t.Error(err)
}
// Cap to a bad root should fail
if err := snaps.Cap(common.HexToHash("0x1337"), 0, 1024); err == nil {
t.Errorf("expected error, got none")
}
// Now, merge the a-chain
snaps.Cap(common.HexToHash("0xa3"), 0, 1024)
@ -300,4 +313,9 @@ func TestPostCapBasicDataAccess(t *testing.T) {
if err := shouldErr(snap, "0xa3"); err != nil {
t.Error(err)
}
// Now, merge it again, just for fun. It should now error, since a3
// is a disk layer
if err := snaps.Cap(common.HexToHash("0xa3"), 0, 1024); err == nil {
t.Error("expected error capping the disk layer, got none")
}
}