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Diffstat (limited to 'vendor/github.com/google/gopacket/layerclass.go')
-rw-r--r-- | vendor/github.com/google/gopacket/layerclass.go | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/vendor/github.com/google/gopacket/layerclass.go b/vendor/github.com/google/gopacket/layerclass.go deleted file mode 100644 index 775cd09..0000000 --- a/vendor/github.com/google/gopacket/layerclass.go +++ /dev/null @@ -1,107 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package gopacket - -// LayerClass is a set of LayerTypes, used for grabbing one of a number of -// different types from a packet. -type LayerClass interface { - // Contains returns true if the given layer type should be considered part - // of this layer class. - Contains(LayerType) bool - // LayerTypes returns the set of all layer types in this layer class. - // Note that this may not be a fast operation on all LayerClass - // implementations. - LayerTypes() []LayerType -} - -// Contains implements LayerClass. -func (l LayerType) Contains(a LayerType) bool { - return l == a -} - -// LayerTypes implements LayerClass. -func (l LayerType) LayerTypes() []LayerType { - return []LayerType{l} -} - -// LayerClassSlice implements a LayerClass with a slice. -type LayerClassSlice []bool - -// Contains returns true if the given layer type should be considered part -// of this layer class. -func (s LayerClassSlice) Contains(t LayerType) bool { - return int(t) < len(s) && s[t] -} - -// LayerTypes returns all layer types in this LayerClassSlice. -// Because of LayerClassSlice's implementation, this could be quite slow. -func (s LayerClassSlice) LayerTypes() (all []LayerType) { - for i := 0; i < len(s); i++ { - if s[i] { - all = append(all, LayerType(i)) - } - } - return -} - -// NewLayerClassSlice creates a new LayerClassSlice by creating a slice of -// size max(types) and setting slice[t] to true for each type t. Note, if -// you implement your own LayerType and give it a high value, this WILL create -// a very large slice. -func NewLayerClassSlice(types []LayerType) LayerClassSlice { - var max LayerType - for _, typ := range types { - if typ > max { - max = typ - } - } - t := make([]bool, int(max+1)) - for _, typ := range types { - t[typ] = true - } - return t -} - -// LayerClassMap implements a LayerClass with a map. -type LayerClassMap map[LayerType]bool - -// Contains returns true if the given layer type should be considered part -// of this layer class. -func (m LayerClassMap) Contains(t LayerType) bool { - return m[t] -} - -// LayerTypes returns all layer types in this LayerClassMap. -func (m LayerClassMap) LayerTypes() (all []LayerType) { - for t := range m { - all = append(all, t) - } - return -} - -// NewLayerClassMap creates a LayerClassMap and sets map[t] to true for each -// type in types. -func NewLayerClassMap(types []LayerType) LayerClassMap { - m := LayerClassMap{} - for _, typ := range types { - m[typ] = true - } - return m -} - -// NewLayerClass creates a LayerClass, attempting to be smart about which type -// it creates based on which types are passed in. -func NewLayerClass(types []LayerType) LayerClass { - for _, typ := range types { - if typ > maxLayerType { - // NewLayerClassSlice could create a very large object, so instead create - // a map. - return NewLayerClassMap(types) - } - } - return NewLayerClassSlice(types) -} |