spin-lock

基本解釋

It acquires the spin lock and begins its access.
他守護旋轉鎖并且開始其訪問。
To prevent chaos, we associate a spin lock with this “resource.
為了防止混亂，我們用這個資源聯合一個旋轉鎖。
We decide that we will access the resource only while owning the spin lock.
我決定：我們將要訪問的只有具有旋轉鎖的資源。
I want to be very clear about how a spin lock and a shared resource come to be associated.
我想要很清楚地（說明）：一個旋轉鎖和一個共享資源是如何被關連在一起的。
As I'll discuss later in this chapter, queue access occurs under protection of a spin lock, and that carries with it execution at DISPATCH_LEVEL.
就像在這章后面我將要討論的一樣，隊列訪問發(fā)生在一個旋轉鎖的保護之下，并且它在DISPATCH_LEVEL上來執(zhí)行。