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38 lines
1.1 KiB
38 lines
1.1 KiB
package store
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import "github.com/tendermint/tendermint/types"
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// Store is anything that can persistenly store headers.
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type Store interface {
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// SaveSignedHeader saves a SignedHeader.
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//
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// height must be > 0.
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SaveSignedHeader(sh *types.SignedHeader) error
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// SaveValidatorSet saves a ValidatorSet.
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//
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// height must be > 0.
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SaveValidatorSet(valSet *types.ValidatorSet, height int64) error
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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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// height must be > 0.
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//
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// If the store is empty and the latest SignedHeader is requested, an error
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// 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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// height must be > 0.
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//
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// If the store is empty and the latest ValidatorSet is requested, an error
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// is returned.
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ValidatorSet(height int64) (*types.ValidatorSet, error)
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// LastSignedHeaderHeight returns the last SignedHeader height.
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//
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// If the store is empty, an error is returned.
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LastSignedHeaderHeight() (int64, error)
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}
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