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utils.go
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/
utils.go
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package chain
import (
"context"
"reflect"
"runtime"
"strings"
"github.com/filecoin-project/venus/pkg/util/blockstoreutil"
"github.com/filecoin-project/venus/venus-shared/types"
"github.com/filecoin-project/go-state-types/abi"
"github.com/filecoin-project/go-state-types/rt"
blockFormat "github.com/ipfs/go-block-format"
"github.com/ipfs/go-cid"
/* inline-gen template
{{range .actorVersions}}
exported{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin/exported"{{end}}
/* inline-gen start */
exported0 "github.com/filecoin-project/specs-actors/actors/builtin/exported"
exported2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/exported"
exported3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/exported"
exported4 "github.com/filecoin-project/specs-actors/v4/actors/builtin/exported"
exported5 "github.com/filecoin-project/specs-actors/v5/actors/builtin/exported"
exported6 "github.com/filecoin-project/specs-actors/v6/actors/builtin/exported"
exported7 "github.com/filecoin-project/specs-actors/v7/actors/builtin/exported"
/* inline-gen end */
"github.com/filecoin-project/venus/venus-shared/actors/builtin"
)
type MethodMeta struct {
Name string
Params reflect.Type
Ret reflect.Type
}
var MethodsMap = map[cid.Cid]map[abi.MethodNum]MethodMeta{}
func init() {
// TODO: combine with the runtime actor registry.
var actors []rt.VMActor
/* inline-gen template
{{range .actorVersions}}
actors = append(actors, exported{{.}}.BuiltinActors()...){{end}}
/* inline-gen start */
actors = append(actors, exported0.BuiltinActors()...)
actors = append(actors, exported2.BuiltinActors()...)
actors = append(actors, exported3.BuiltinActors()...)
actors = append(actors, exported4.BuiltinActors()...)
actors = append(actors, exported5.BuiltinActors()...)
actors = append(actors, exported6.BuiltinActors()...)
actors = append(actors, exported7.BuiltinActors()...)
/* inline-gen end */
for _, actor := range actors {
exports := actor.Exports()
methods := make(map[abi.MethodNum]MethodMeta, len(exports))
// Explicitly add send, it's special.
methods[builtin.MethodSend] = MethodMeta{
Name: "Send",
Params: reflect.TypeOf(new(abi.EmptyValue)),
Ret: reflect.TypeOf(new(abi.EmptyValue)),
}
// Iterate over exported methods. Some of these _may_ be nil and
// must be skipped.
for number, export := range exports {
if export == nil {
continue
}
ev := reflect.ValueOf(export)
et := ev.Type()
// Extract the method names using reflection. These
// method names always match the field names in the
// `builtin.Method*` structs (tested in the specs-actors
// tests).
fnName := runtime.FuncForPC(ev.Pointer()).Name()
fnName = strings.TrimSuffix(fnName[strings.LastIndexByte(fnName, '.')+1:], "-fm")
switch abi.MethodNum(number) {
case builtin.MethodSend:
panic("method 0 is reserved for Send")
case builtin.MethodConstructor:
if fnName != "Constructor" {
panic("method 1 is reserved for Constructor")
}
}
methods[abi.MethodNum(number)] = MethodMeta{
Name: fnName,
Params: et.In(1),
Ret: et.Out(0),
}
}
MethodsMap[actor.Code()] = methods
}
}
type storable interface {
ToStorageBlock() (blockFormat.Block, error)
}
func PutMessage(ctx context.Context, bs blockstoreutil.Blockstore, m storable) (cid.Cid, error) {
b, err := m.ToStorageBlock()
if err != nil {
return cid.Undef, err
}
if err := bs.Put(ctx, b); err != nil {
return cid.Undef, err
}
return b.Cid(), nil
}
// Reverse reverses the order of the slice `chain`.
func Reverse(chain []*types.TipSet) {
// https://github.com/golang/go/wiki/SliceTricks#reversing
for i := len(chain)/2 - 1; i >= 0; i-- {
opp := len(chain) - 1 - i
chain[i], chain[opp] = chain[opp], chain[i]
}
}