urcu

package

v0.0.0-...-2e1dda9 Latest Latest Go to latest Published: Feb 15, 2024 License: NIST-PD-fallback Imports: 3 Imported by: 0

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Repository

github.com/usnistgov/ndn-dpdk

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Open Source Insights

README ¶

ndn-dpdk/core/urcu

This package wraps the Userspace RCU library.

NDN-DPDK uses the QSBR flavor of RCU (liburcu-qsbr). Therefore, every read-side thread must call func (*ReadSide) Quiescent() (in Go) or rcu_quiescent_state() (in C) in its main loop to ensure progress.

Documentation ¶

Overview ¶

Package urcu is a thin wrapper of Userspace RCU library.

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Barrier ¶

func Barrier()

Barrier declares an RCU barrier.

func Synchronize ¶

func Synchronize()

Synchronize invokes synchronize_rcu.

Types ¶

type ReadSide ¶

type ReadSide struct {
	IsOnline bool
	NLocks   int
}

ReadSide represents an RCU read-side thread. Fields are exported so that they can be updated to reflect what C code did.

func NewReadSide ¶

func NewReadSide() *ReadSide

NewReadSide registers current thread as an RCU read-side thread. If the thread is registered in C code, do not call this function, use a zero ReadSide instead.

func (*ReadSide) Close ¶

func (*ReadSide) Close() error

Close unregisters current thread as an RCU read-side thread. If the thread is unregistered in C code, do not call this function.

func (*ReadSide) Lock ¶

func (rs *ReadSide) Lock()

Lock obtains read-side lock.

func (*ReadSide) Offline ¶

func (rs *ReadSide) Offline()

Offline marks current thread offline.

func (*ReadSide) Online ¶

func (rs *ReadSide) Online()

Online marks current thread online.

func (*ReadSide) Quiescent ¶

func (rs *ReadSide) Quiescent()

Quiescent indicates current thread is quiescent.

func (*ReadSide) Unlock ¶

func (rs *ReadSide) Unlock()

Unlock releases read-side lock.

Source Files ¶

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