tatas_lock Struct Reference

List of all members.

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Detailed Description

A test-and-test-and-set spinlock.

This lock is good for short, uncontended critical sections. If contention is high, use an mcs_lock. Long critical sections should use pthread_mutex_t.

Tradeoffs are:

• test-and-test-and-set locks: low-overhead but not scalable
• queue-based locks: higher overhead but scalable
• pthread mutexes : very high overhead and blocks, but frees up cpu for other threads when number of cpus is fewer than number of threads

See also:

REFSYNC

Definition at line 305 of file sthread.h.

Public Member Functions
	tatas_lock ()
bool	try_lock ()
	Try to acquire the lock immediately.
void	acquire ()
	Acquire the lock, spinning as long as necessary.
void	release ()
	Release the lock.
bool	is_mine () const
	True if this thread is the lock holder.

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The documentation for this struct was generated from the following file:

• src/sthread/sthread.h

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