45 lines
1.2 KiB
Go
45 lines
1.2 KiB
Go
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package drivers
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import (
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"context"
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abi_spec "github.com/filecoin-project/specs-actors/actors/abi"
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acrypto "github.com/filecoin-project/specs-actors/actors/crypto"
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"github.com/filecoin-project/specs-actors/actors/abi"
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)
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// RandomnessSource provides randomness to actors.
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type RandomnessSource interface {
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Randomness(ctx context.Context, tag acrypto.DomainSeparationTag, epoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error)
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}
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// Specifies a domain for randomness generation.
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type RandomnessType int
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type randWrapper struct {
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rnd RandomnessSource
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}
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func (w *randWrapper) GetRandomness(ctx context.Context, pers acrypto.DomainSeparationTag, round abi.ChainEpoch, entropy []byte) ([]byte, error) {
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return w.rnd.Randomness(ctx, pers, round, entropy)
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}
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type vmRand struct {
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}
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func (*vmRand) GetRandomness(ctx context.Context, dst acrypto.DomainSeparationTag, h abi.ChainEpoch, input []byte) ([]byte, error) {
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panic("implement me")
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}
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type fakeRandSrc struct {
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}
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func (r fakeRandSrc) Randomness(_ context.Context, _ acrypto.DomainSeparationTag, _ abi_spec.ChainEpoch, _ []byte) (abi_spec.Randomness, error) {
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return abi_spec.Randomness("sausages"), nil
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}
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func NewRandomnessSource() RandomnessSource {
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return &fakeRandSrc{}
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}
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