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| author | cuiweixie <cuiweixie@gmail.com> | 2022-08-27 11:11:08 +0800 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2022-09-02 06:06:53 +0000 |
| commit | 134cd34c07862aa8618e25d1d1279b4fd127c512 (patch) | |
| tree | d49ea3c836feafedb8df4eb4f39ce8eb46eb2775 /src/hash | |
| parent | 8e35910640bd190103d99d994d54b738e619c858 (diff) | |
| download | go-134cd34c07862aa8618e25d1d1279b4fd127c512.tar.gz go-134cd34c07862aa8618e25d1d1279b4fd127c512.zip | |
hash: convert haveCastagnoli to atomic type
Change-Id: I313fff5684d89ee737572d11b1b697c5575866a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/426083
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Diffstat (limited to 'src/hash')
| -rw-r--r-- | src/hash/crc32/crc32.go | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/hash/crc32/crc32.go b/src/hash/crc32/crc32.go index 1a24d980cc..4fcb168e6e 100644 --- a/src/hash/crc32/crc32.go +++ b/src/hash/crc32/crc32.go @@ -78,7 +78,7 @@ var castagnoliTable *Table var castagnoliTable8 *slicing8Table var updateCastagnoli func(crc uint32, p []byte) uint32 var castagnoliOnce sync.Once -var haveCastagnoli uint32 +var haveCastagnoli atomic.Bool func castagnoliInit() { castagnoliTable = simpleMakeTable(Castagnoli) @@ -94,7 +94,7 @@ func castagnoliInit() { } } - atomic.StoreUint32(&haveCastagnoli, 1) + haveCastagnoli.Store(true) } // IEEETable is the table for the IEEE polynomial. @@ -208,7 +208,7 @@ func readUint32(b []byte) uint32 { // Update returns the result of adding the bytes in p to the crc. func Update(crc uint32, tab *Table, p []byte) uint32 { switch { - case atomic.LoadUint32(&haveCastagnoli) != 0 && tab == castagnoliTable: + case haveCastagnoli.Load() && tab == castagnoliTable: return updateCastagnoli(crc, p) case tab == IEEETable: // Unfortunately, because IEEETable is exported, IEEE may be used without a @@ -222,7 +222,7 @@ func Update(crc uint32, tab *Table, p []byte) uint32 { func (d *digest) Write(p []byte) (n int, err error) { switch { - case atomic.LoadUint32(&haveCastagnoli) != 0 && d.tab == castagnoliTable: + case haveCastagnoli.Load() && d.tab == castagnoliTable: d.crc = updateCastagnoli(d.crc, p) case d.tab == IEEETable: // We only create digest objects through New() which takes care of |