github.com/onflow/flow-go@v0.35.7-crescendo-preview.23-atree-inlining/module/chunks.go (about)

     1  package module
     2  
     3  import (
     4  	chmodels "github.com/onflow/flow-go/model/chunks"
     5  	"github.com/onflow/flow-go/model/flow"
     6  	"github.com/onflow/flow-go/model/verification"
     7  )
     8  
     9  // ChunkAssigner presents an interface for assigning chunks to the verifier nodes
    10  type ChunkAssigner interface {
    11  	// Assign generates the assignment
    12  	// error returns:
    13  	//  * NoValidChildBlockError indicates that no valid child block is known
    14  	//    (which contains the block's source of randomness)
    15  	//  * unexpected errors should be considered symptoms of internal bugs
    16  	Assign(result *flow.ExecutionResult, blockID flow.Identifier) (*chmodels.Assignment, error)
    17  }
    18  
    19  // ChunkVerifier provides functionality to verify chunks
    20  type ChunkVerifier interface {
    21  	// Verify verifies the given VerifiableChunk by executing it and checking
    22  	// the final state commitment.
    23  	// It returns a Spock Secret as a byte array, verification fault of the
    24  	// chunk, and an error.
    25  	Verify(
    26  		ch *verification.VerifiableChunkData,
    27  	) (
    28  		[]byte,
    29  		error,
    30  	)
    31  }