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https://github.com/tendermint/tendermint.git
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f95409e070
* lite2: move AutoClient into Client Most of the users will want auto update feature, so it makes sense to move it into the Client itself, rather than having a separate abstraction (it makes the code cleaner, but introduces an extra thing the user will need to learn). Also, add `FirstTrustedHeight` func to Client to get first trusted height. * fix db store tests * separate examples for auto and manual clients * AutoUpdate tries to update to latest state NOT 1 header at a time * fix errors * lite2: make Logger an option remove SetLogger func * fix lite cmd * lite2: make concurrency assumptions explicit * fixes after my own review * no need for nextHeightFn sequence func will download intermediate headers * correct comment
34 lines
1.0 KiB
Go
34 lines
1.0 KiB
Go
package provider
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import "github.com/tendermint/tendermint/types"
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// Provider provides information for the lite client to sync (verification
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// happens in the client).
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type Provider interface {
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// ChainID returns the blockchain ID.
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ChainID() string
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// SignedHeader returns the SignedHeader that corresponds to the given
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// height.
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//
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// 0 - the latest.
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// height must be >= 0.
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//
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// If the provider fails to fetch the SignedHeader due to the IO or other
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// issues, an error will be returned.
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// If there's no SignedHeader for the given height, ErrSignedHeaderNotFound
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// error is returned.
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SignedHeader(height int64) (*types.SignedHeader, error)
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// ValidatorSet returns the ValidatorSet that corresponds to height.
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//
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// 0 - the latest.
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// height must be >= 0.
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//
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// If the provider fails to fetch the ValidatorSet due to the IO or other
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// issues, an error will be returned.
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// If there's no ValidatorSet for the given height, ErrValidatorSetNotFound
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// error is returned.
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ValidatorSet(height int64) (*types.ValidatorSet, error)
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}
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