fix golint issues in core/syncx (#526)

core/syncx/atomicbool.go

@@ -2,18 +2,22 @@ package syncx
 
 import "sync/atomic"
 
+// An AtomicBool is an atomic implementation for boolean values.
 type AtomicBool uint32
 
+// NewAtomicBool returns an AtomicBool.
 func NewAtomicBool() *AtomicBool {
 	return new(AtomicBool)
 }
 
+// ForAtomicBool returns an AtomicBool with given val.
 func ForAtomicBool(val bool) *AtomicBool {
 	b := NewAtomicBool()
 	b.Set(val)
 	return b
 }
 
+// CompareAndSwap compares current value with given old, if equals, set to given val.
 func (b *AtomicBool) CompareAndSwap(old, val bool) bool {
 	var ov, nv uint32
 	if old {
@@ -25,6 +29,7 @@ func (b *AtomicBool) CompareAndSwap(old, val bool) bool {
 	return atomic.CompareAndSwapUint32((*uint32)(b), ov, nv)
 }
 
+// Set sets the value to v.
 func (b *AtomicBool) Set(v bool) {
 	if v {
 		atomic.StoreUint32((*uint32)(b), 1)
@@ -33,6 +38,7 @@ func (b *AtomicBool) Set(v bool) {
 	}
 }
 
+// True returns true if current value is true.
 func (b *AtomicBool) True() bool {
 	return atomic.LoadUint32((*uint32)(b)) == 1
 }