#include <spinlock.h>

详细描述

A ScopedLockPair acquires locks to two specified mutexes upon creation and releases them upon destruction (usually at the end of a code block). You should use this instead of two ScopedLock objects to avoid deadlocks: With two separate ScopedLock objects one thread could lock A and then try to lock B, while another thread could lock B and then try to lock A, resulting in a deadlock. ScopedLockPair avoids this by always locking the mutex with lower memory address at first.

另请参阅

SpinLock

ScopedLock