init: v1.0.0

internal/spinlock.go

@@ -0,0 +1,24 @@
+package internal
+
+import (
+	"runtime"
+	"sync/atomic"
+)
+
+type SpinLock struct {
+	v int32
+}
+
+func (l *SpinLock) Unlock() {
+	l.v = 0
+}
+
+func (l *SpinLock) Lock() {
+	for {
+		if l.v == 0 && atomic.CompareAndSwapInt32(&l.v, 0, 1) {
+			return
+		}
+		// Nginx中考虑了多核的情况，Go中不考虑，因为可能是协程的切换。
+		runtime.Gosched()
+	}
+}