github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/kv/kvbase/range_cache.go (about)

     1  // Copyright 2019 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  // Package kvbase exports kv level interfaces to avoid dependency cycles.
    12  package kvbase
    13  
    14  import (
    15  	"context"
    16  
    17  	"github.com/cockroachdb/cockroach/pkg/roachpb"
    18  )
    19  
    20  // RangeDescriptorCache is a simplified interface to the kv.RangeDescriptorCache
    21  // for use at lower levels of the stack like storage.
    22  type RangeDescriptorCache interface {
    23  
    24  	// LookupRangeDescritor looks up a range descriptor based on a key.
    25  	LookupRangeDescriptor(
    26  		ctx context.Context, key roachpb.RKey,
    27  	) (*roachpb.RangeDescriptor, error)
    28  }