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-rw-r--r--pkg/segment/range.go79
1 files changed, 0 insertions, 79 deletions
diff --git a/pkg/segment/range.go b/pkg/segment/range.go
deleted file mode 100644
index 4d4aeffef..000000000
--- a/pkg/segment/range.go
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package segment
-
-// T is a required type parameter that must be an integral type.
-type T uint64
-
-// A Range represents a contiguous range of T.
-//
-// +stateify savable
-type Range struct {
- // Start is the inclusive start of the range.
- Start T
-
- // End is the exclusive end of the range.
- End T
-}
-
-// WellFormed returns true if r.Start <= r.End. All other methods on a Range
-// require that the Range is well-formed.
-func (r Range) WellFormed() bool {
- return r.Start <= r.End
-}
-
-// Length returns the length of the range.
-func (r Range) Length() T {
- return r.End - r.Start
-}
-
-// Contains returns true if r contains x.
-func (r Range) Contains(x T) bool {
- return r.Start <= x && x < r.End
-}
-
-// Overlaps returns true if r and r2 overlap.
-func (r Range) Overlaps(r2 Range) bool {
- return r.Start < r2.End && r2.Start < r.End
-}
-
-// IsSupersetOf returns true if r is a superset of r2; that is, the range r2 is
-// contained within r.
-func (r Range) IsSupersetOf(r2 Range) bool {
- return r.Start <= r2.Start && r.End >= r2.End
-}
-
-// Intersect returns a range consisting of the intersection between r and r2.
-// If r and r2 do not overlap, Intersect returns a range with unspecified
-// bounds, but for which Length() == 0.
-func (r Range) Intersect(r2 Range) Range {
- if r.Start < r2.Start {
- r.Start = r2.Start
- }
- if r.End > r2.End {
- r.End = r2.End
- }
- if r.End < r.Start {
- r.End = r.Start
- }
- return r
-}
-
-// CanSplitAt returns true if it is legal to split a segment spanning the range
-// r at x; that is, splitting at x would produce two ranges, both of which have
-// non-zero length.
-func (r Range) CanSplitAt(x T) bool {
- return r.Contains(x) && r.Start < x
-}