diff --git a/vendor/github.com/boljen/go-bitmap/uintmap.go b/vendor/github.com/boljen/go-bitmap/uintmap.go
new file mode 100644
index 0000000..72cbf4a
--- /dev/null
+++ b/vendor/github.com/boljen/go-bitmap/uintmap.go
@@ -0,0 +1,32 @@
+package bitmap
+
+import (
+	"sync/atomic"
+	"unsafe"
+)
+
+// SetAtomicUint32 sets the target bit to the target value inside the uint32
+// encded bitmap.
+func SetAtomicUint32(bitmap []uint32, targetBit int, targetValue bool) {
+	targetIndex := targetBit / 32
+	BitOffset := targetBit % 32
+
+	for {
+		localValue := atomic.LoadUint32(&bitmap[targetIndex])
+		targetBytes := (*[4]byte)(unsafe.Pointer(&localValue))[:]
+		if Get(targetBytes, BitOffset) == targetValue {
+			return
+		}
+		referenceValue := localValue
+		Set(targetBytes, BitOffset, targetValue)
+		if atomic.CompareAndSwapUint32(&bitmap[targetIndex], referenceValue, localValue) {
+			break
+		}
+	}
+}
+
+// GetAtomicUint32 gets the target bit from an uint32 encoded bitmap.
+func GetAtomicUint32(bitmap []uint32, targetBit int) bool {
+	data := (*[4]byte)(unsafe.Pointer(&bitmap[targetBit/32]))[:]
+	return Get(data, targetBit%32)
+}