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author | Daniel J Walsh <dwalsh@redhat.com> | 2018-07-08 07:55:30 -0400 |
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committer | Atomic Bot <atomic-devel@projectatomic.io> | 2018-07-19 18:43:32 +0000 |
commit | 98703eb204923f06555605c648fc165a55214520 (patch) | |
tree | a407bae8b3489d4f9b0f0d0f228658bbfe95a38e /vendor/github.com/ulikunitz/xz/lzma/directcodec.go | |
parent | c020db8cd21cb221cfbe36b264e0ec02999596ed (diff) | |
download | podman-98703eb204923f06555605c648fc165a55214520.tar.gz podman-98703eb204923f06555605c648fc165a55214520.tar.bz2 podman-98703eb204923f06555605c648fc165a55214520.zip |
Vendor in latest code for storage,image, buildah
vendor in containers/storage
vendor in containers/image
vendor in projectatomic/buildah
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #1114
Approved by: mheon
Diffstat (limited to 'vendor/github.com/ulikunitz/xz/lzma/directcodec.go')
-rw-r--r-- | vendor/github.com/ulikunitz/xz/lzma/directcodec.go | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/vendor/github.com/ulikunitz/xz/lzma/directcodec.go b/vendor/github.com/ulikunitz/xz/lzma/directcodec.go new file mode 100644 index 000000000..e08eb989f --- /dev/null +++ b/vendor/github.com/ulikunitz/xz/lzma/directcodec.go @@ -0,0 +1,49 @@ +// Copyright 2014-2017 Ulrich Kunitz. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package lzma + +import "fmt" + +// directCodec allows the encoding and decoding of values with a fixed number +// of bits. The number of bits must be in the range [1,32]. +type directCodec byte + +// makeDirectCodec creates a directCodec. The function panics if the number of +// bits is not in the range [1,32]. +func makeDirectCodec(bits int) directCodec { + if !(1 <= bits && bits <= 32) { + panic(fmt.Errorf("bits=%d out of range", bits)) + } + return directCodec(bits) +} + +// Bits returns the number of bits supported by this codec. +func (dc directCodec) Bits() int { + return int(dc) +} + +// Encode uses the range encoder to encode a value with the fixed number of +// bits. The most-significant bit is encoded first. +func (dc directCodec) Encode(e *rangeEncoder, v uint32) error { + for i := int(dc) - 1; i >= 0; i-- { + if err := e.DirectEncodeBit(v >> uint(i)); err != nil { + return err + } + } + return nil +} + +// Decode uses the range decoder to decode a value with the given number of +// given bits. The most-significant bit is decoded first. +func (dc directCodec) Decode(d *rangeDecoder) (v uint32, err error) { + for i := int(dc) - 1; i >= 0; i-- { + x, err := d.DirectDecodeBit() + if err != nil { + return 0, err + } + v = (v << 1) | x + } + return v, nil +} |