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new api to calculate arbitrary forks revert and applys

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Signed-off-by: jsign <jsign.uy@gmail.com>
This commit is contained in:
jsign 2020-01-14 21:24:08 -03:00
parent a8e39962d0
commit 08b99ff413
4 changed files with 49 additions and 15 deletions
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1
api/api_full.go
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@ -37,6 +37,7 @@ type FullNode interface {
ChainTipSetWeight(context.Context, *types.TipSet) (types.BigInt, error)
ChainGetNode(ctx context.Context, p string) (interface{}, error)
ChainGetMessage(context.Context, cid.Cid) (*types.Message, error)
ChainGetPath(ctx context.Context, from types.TipSetKey, to types.TipSetKey) ([]*store.HeadChange, error)
// syncer
SyncState(context.Context) (*SyncState, error)

35
api/apistruct/struct.go
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@ -40,21 +40,22 @@ type FullNodeStruct struct {
CommonStruct
Internal struct {
ChainNotify func(context.Context) (<-chan []*store.HeadChange, error) `perm:"read"`
ChainHead func(context.Context) (*types.TipSet, error) `perm:"read"`
ChainGetRandomness func(context.Context, types.TipSetKey, int64) ([]byte, error) `perm:"read"`
ChainGetBlock func(context.Context, cid.Cid) (*types.BlockHeader, error) `perm:"read"`
ChainGetTipSet func(context.Context, types.TipSetKey) (*types.TipSet, error) `perm:"read"`
ChainGetBlockMessages func(context.Context, cid.Cid) (*api.BlockMessages, error) `perm:"read"`
ChainGetParentReceipts func(context.Context, cid.Cid) ([]*types.MessageReceipt, error) `perm:"read"`
ChainGetParentMessages func(context.Context, cid.Cid) ([]api.Message, error) `perm:"read"`
ChainGetTipSetByHeight func(context.Context, uint64, *types.TipSet) (*types.TipSet, error) `perm:"read"`
ChainReadObj func(context.Context, cid.Cid) ([]byte, error) `perm:"read"`
ChainSetHead func(context.Context, *types.TipSet) error `perm:"admin"`
ChainGetGenesis func(context.Context) (*types.TipSet, error) `perm:"read"`
ChainTipSetWeight func(context.Context, *types.TipSet) (types.BigInt, error) `perm:"read"`
ChainGetNode func(ctx context.Context, p string) (interface{}, error) `perm:"read"`
ChainGetMessage func(context.Context, cid.Cid) (*types.Message, error) `perm:"read"`
ChainNotify func(context.Context) (<-chan []*store.HeadChange, error) `perm:"read"`
ChainHead func(context.Context) (*types.TipSet, error) `perm:"read"`
ChainGetRandomness func(context.Context, types.TipSetKey, int64) ([]byte, error) `perm:"read"`
ChainGetBlock func(context.Context, cid.Cid) (*types.BlockHeader, error) `perm:"read"`
ChainGetTipSet func(context.Context, types.TipSetKey) (*types.TipSet, error) `perm:"read"`
ChainGetBlockMessages func(context.Context, cid.Cid) (*api.BlockMessages, error) `perm:"read"`
ChainGetParentReceipts func(context.Context, cid.Cid) ([]*types.MessageReceipt, error) `perm:"read"`
ChainGetParentMessages func(context.Context, cid.Cid) ([]api.Message, error) `perm:"read"`
ChainGetTipSetByHeight func(context.Context, uint64, *types.TipSet) (*types.TipSet, error) `perm:"read"`
ChainReadObj func(context.Context, cid.Cid) ([]byte, error) `perm:"read"`
ChainSetHead func(context.Context, *types.TipSet) error `perm:"admin"`
ChainGetGenesis func(context.Context) (*types.TipSet, error) `perm:"read"`
ChainTipSetWeight func(context.Context, *types.TipSet) (types.BigInt, error) `perm:"read"`
ChainGetNode func(ctx context.Context, p string) (interface{}, error) `perm:"read"`
ChainGetMessage func(context.Context, cid.Cid) (*types.Message, error) `perm:"read"`
ChainGetPath func(context.Context, types.TipSetKey, types.TipSetKey) ([]*store.HeadChange, error) `perm:"read"`
SyncState func(context.Context) (*api.SyncState, error) `perm:"read"`
SyncSubmitBlock func(ctx context.Context, blk *types.BlockMsg) error `perm:"write"`
@ -355,6 +356,10 @@ func (c *FullNodeStruct) ChainGetMessage(ctx context.Context, mc cid.Cid) (*type
return c.Internal.ChainGetMessage(ctx, mc)
}
func (c *FullNodeStruct) ChainGetPath(ctx context.Context, from types.TipSetKey, to types.TipSetKey) ([]*store.HeadChange, error) {
return c.Internal.ChainGetPath(ctx, from, to)
}
func (c *FullNodeStruct) SyncState(ctx context.Context) (*api.SyncState, error) {
return c.Internal.SyncState(ctx)
}

24
chain/store/store.go
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@ -730,6 +730,30 @@ func (cs *ChainStore) readMsgMetaCids(mmc cid.Cid) ([]cid.Cid, []cid.Cid, error)
return blscids, secpkcids, nil
}
func (cs *ChainStore) GetPath(ctx context.Context, from types.TipSetKey, to types.TipSetKey) ([]*HeadChange, error) {
fts, err := cs.LoadTipSet(from)
if err != nil {
return nil, xerrors.Errorf("loading from tipset %s: %w", from, err)
}
tts, err := cs.LoadTipSet(to)
if err != nil {
return nil, xerrors.Errorf("loading to tipset %s: %w", to, err)
}
revert, apply, err := cs.ReorgOps(fts, tts)
if err != nil {
return nil, xerrors.Errorf("error getting tipset branches: %w", err)
}
path := make([]*HeadChange, len(revert)+len(apply))
for i, r := range revert {
path[i] = &HeadChange{Type: HCRevert, Val: r}
}
for j, i := 0, len(apply)-1; i >= 0; j, i = j+1, i-1 {
path[j+len(revert)] = &HeadChange{Type: HCApply, Val: apply[i]}
}
return path, nil
}
func (cs *ChainStore) MessagesForBlock(b *types.BlockHeader) ([]*types.Message, []*types.SignedMessage, error) {
blscids, secpkcids, err := cs.readMsgMetaCids(b.Messages)
if err != nil {

4
node/impl/full/chain.go
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@ -83,6 +83,10 @@ func (a *ChainAPI) ChainGetBlockMessages(ctx context.Context, msg cid.Cid) (*api
}, nil
}
func (a *ChainAPI) ChainGetPath(ctx context.Context, from types.TipSetKey, to types.TipSetKey) ([]*store.HeadChange, error) {
return a.Chain.GetPath(ctx, from, to)
}
func (a *ChainAPI) ChainGetParentMessages(ctx context.Context, bcid cid.Cid) ([]api.Message, error) {
b, err := a.Chain.GetBlock(bcid)
if err != nil {