ScopedLockPair Class Reference

#include <spinlock.h>

Detailed Description

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.

See also

SpinLock

ScopedLock

Public Member Functions
	ScopedLockPair (Spinlock &lock1, Spinlock &lock2)
	ScopedLockPair (ScopedLockPair &&src)
	~ScopedLockPair ()

Private Member Functions
	MAXON_DISALLOW_COPY_AND_ASSIGN (ScopedLockPair)

Private Attributes
Spinlock *	_lock1
Spinlock *	_lock2

Constructor & Destructor Documentation

ScopedLockPair() [1/2]

ScopedLockPair	(	Spinlock &	lock1,
		Spinlock &	lock2
	)

ScopedLockPair() [2/2]

ScopedLockPair

(

ScopedLockPair &&

src

)

~ScopedLockPair()

~ScopedLockPair

(

)

Member Function Documentation

MAXON_DISALLOW_COPY_AND_ASSIGN()

MAXON_DISALLOW_COPY_AND_ASSIGN ( ScopedLockPair  )

private

Member Data Documentation

_lock1

Spinlock* _lock1

private

_lock2

Spinlock* _lock2

private