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Merge pull request #4628 from filecoin-project/frrist/power-claims-ch…
…anged polish: add ClaimsChanged and DiffClaims method to power shim
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,117 @@ | ||
package power | ||
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||
import ( | ||
"github.com/filecoin-project/go-address" | ||
"github.com/filecoin-project/go-state-types/abi" | ||
cbg "github.com/whyrusleeping/cbor-gen" | ||
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"github.com/filecoin-project/lotus/chain/actors/adt" | ||
) | ||
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type ClaimChanges struct { | ||
Added []ClaimInfo | ||
Modified []ClaimModification | ||
Removed []ClaimInfo | ||
} | ||
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type ClaimModification struct { | ||
Miner address.Address | ||
From Claim | ||
To Claim | ||
} | ||
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type ClaimInfo struct { | ||
Miner address.Address | ||
Claim Claim | ||
} | ||
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func DiffClaims(pre, cur State) (*ClaimChanges, error) { | ||
results := new(ClaimChanges) | ||
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prec, err := pre.claims() | ||
if err != nil { | ||
return nil, err | ||
} | ||
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curc, err := cur.claims() | ||
if err != nil { | ||
return nil, err | ||
} | ||
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if err := adt.DiffAdtMap(prec, curc, &claimDiffer{results, pre, cur}); err != nil { | ||
return nil, err | ||
} | ||
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return results, nil | ||
} | ||
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type claimDiffer struct { | ||
Results *ClaimChanges | ||
pre, after State | ||
} | ||
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func (c *claimDiffer) AsKey(key string) (abi.Keyer, error) { | ||
addr, err := address.NewFromBytes([]byte(key)) | ||
if err != nil { | ||
return nil, err | ||
} | ||
return abi.AddrKey(addr), nil | ||
} | ||
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func (c *claimDiffer) Add(key string, val *cbg.Deferred) error { | ||
ci, err := c.after.decodeClaim(val) | ||
if err != nil { | ||
return err | ||
} | ||
addr, err := address.NewFromBytes([]byte(key)) | ||
if err != nil { | ||
return err | ||
} | ||
c.Results.Added = append(c.Results.Added, ClaimInfo{ | ||
Miner: addr, | ||
Claim: ci, | ||
}) | ||
return nil | ||
} | ||
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func (c *claimDiffer) Modify(key string, from, to *cbg.Deferred) error { | ||
ciFrom, err := c.pre.decodeClaim(from) | ||
if err != nil { | ||
return err | ||
} | ||
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ciTo, err := c.after.decodeClaim(to) | ||
if err != nil { | ||
return err | ||
} | ||
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addr, err := address.NewFromBytes([]byte(key)) | ||
if err != nil { | ||
return err | ||
} | ||
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if ciFrom != ciTo { | ||
c.Results.Modified = append(c.Results.Modified, ClaimModification{ | ||
Miner: addr, | ||
From: ciFrom, | ||
To: ciTo, | ||
}) | ||
} | ||
return nil | ||
} | ||
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func (c *claimDiffer) Remove(key string, val *cbg.Deferred) error { | ||
ci, err := c.after.decodeClaim(val) | ||
if err != nil { | ||
return err | ||
} | ||
addr, err := address.NewFromBytes([]byte(key)) | ||
if err != nil { | ||
return err | ||
} | ||
c.Results.Removed = append(c.Results.Removed, ClaimInfo{ | ||
Miner: addr, | ||
Claim: ci, | ||
}) | ||
return nil | ||
} |
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