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feat: add ChainGetTipSetAfterHeight

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This is identical to ChainGetTipSetByHeight, but returns the tipset
following any null tipsets. This is what the user usually wants anyways.

(and I need it for another PR)
This commit is contained in:
Steven Allen
2021-08-05 12:07:14 -07:00
parent 9dca65634d
commit 57bf5c2143
11 changed files with 112 additions and 5 deletions
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node/impl/full/chain.go
+9
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@@ -50,6 +50,7 @@ type ChainModuleAPI interface {
ChainGetMessage(ctx context.Context, mc cid.Cid) (*types.Message, error)
ChainGetTipSet(ctx context.Context, tsk types.TipSetKey) (*types.TipSet, error)
ChainGetTipSetByHeight(ctx context.Context, h abi.ChainEpoch, tsk types.TipSetKey) (*types.TipSet, error)
ChainGetTipSetAfterHeight(ctx context.Context, h abi.ChainEpoch, tsk types.TipSetKey) (*types.TipSet, error)
ChainReadObj(context.Context, cid.Cid) ([]byte, error)
}
@@ -266,6 +267,14 @@ func (m *ChainModule) ChainGetTipSetByHeight(ctx context.Context, h abi.ChainEpo
return m.Chain.GetTipsetByHeight(ctx, h, ts, true)
}
func (m *ChainModule) ChainGetTipSetAfterHeight(ctx context.Context, h abi.ChainEpoch, tsk types.TipSetKey) (*types.TipSet, error) {
ts, err := m.Chain.GetTipSetFromKey(tsk)
if err != nil {
return nil, xerrors.Errorf("loading tipset %s: %w", tsk, err)
}
return m.Chain.GetTipsetByHeight(ctx, h, ts, false)
}
func (m *ChainModule) ChainReadObj(ctx context.Context, obj cid.Cid) ([]byte, error) {
blk, err := m.ExposedBlockstore.Get(obj)
if err != nil {