1 files changed, 76 insertions, 0 deletions
diff --git a/vendor/go.uber.org/atomic/float32_ext.go b/vendor/go.uber.org/atomic/float32_ext.go
new file mode 100644
index 0000000..b0cd8d9
--- /dev/null
+++ b/vendor/go.uber.org/atomic/float32_ext.go
@@ -0,0 +1,76 @@
+// Copyright (c) 2020-2022 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import (
+	"math"
+	"strconv"
+)
+
+//go:generate bin/gen-atomicwrapper -name=Float32 -type=float32 -wrapped=Uint32 -pack=math.Float32bits -unpack=math.Float32frombits -swap -json -imports math -file=float32.go
+
+// Add atomically adds to the wrapped float32 and returns the new value.
+func (f *Float32) Add(delta float32) float32 {
+	for {
+		old := f.Load()
+		new := old + delta
+		if f.CAS(old, new) {
+			return new
+		}
+	}
+}
+
+// Sub atomically subtracts from the wrapped float32 and returns the new value.
+func (f *Float32) Sub(delta float32) float32 {
+	return f.Add(-delta)
+}
+
+// CAS is an atomic compare-and-swap for float32 values.
+//
+// Deprecated: Use CompareAndSwap
+func (f *Float32) CAS(old, new float32) (swapped bool) {
+	return f.CompareAndSwap(old, new)
+}
+
+// CompareAndSwap is an atomic compare-and-swap for float32 values.
+//
+// Note: CompareAndSwap handles NaN incorrectly. NaN != NaN using Go's inbuilt operators
+// but CompareAndSwap allows a stored NaN to compare equal to a passed in NaN.
+// This avoids typical CompareAndSwap loops from blocking forever, e.g.,
+//
+//	for {
+//	  old := atom.Load()
+//	  new = f(old)
+//	  if atom.CompareAndSwap(old, new) {
+//	    break
+//	  }
+//	}
+//
+// If CompareAndSwap did not match NaN to match, then the above would loop forever.
+func (f *Float32) CompareAndSwap(old, new float32) (swapped bool) {
+	return f.v.CompareAndSwap(math.Float32bits(old), math.Float32bits(new))
+}
+
+// String encodes the wrapped value as a string.
+func (f *Float32) String() string {
+	// 'g' is the behavior for floats with %v.
+	return strconv.FormatFloat(float64(f.Load()), 'g', -1, 32)
+}