rte_rwlock.h File Reference

#include <rte_common.h>
#include <rte_atomic.h>

Data Structures
struct	rte_rwlock_t

Macros
#define	RTE_RWLOCK_INITIALIZER   { 0 }

Functions
static void	rte_rwlock_init (rte_rwlock_t *rwl)
static void	rte_rwlock_read_lock (rte_rwlock_t *rwl)
static void	rte_rwlock_read_unlock (rte_rwlock_t *rwl)
static void	rte_rwlock_write_lock (rte_rwlock_t *rwl)
static void	rte_rwlock_write_unlock (rte_rwlock_t *rwl)

Detailed Description

RTE Read-Write Locks

This file defines an API for read-write locks. The lock is used to protect data that allows multiple readers in parallel, but only one writer. All readers are blocked until the writer is finished writing.

Macro Definition Documentation

#define RTE_RWLOCK_INITIALIZER   { 0 }

A static rwlock initializer.

Function Documentation

static void rte_rwlock_init ( rte_rwlock_t *  rwl )

inlinestatic

Initialize the rwlock to an unlocked state.

Parameters

rwl	A pointer to the rwlock structure.

static void rte_rwlock_read_lock ( rte_rwlock_t *  rwl )

inlinestatic

Take a read lock. Loop until the lock is held.

Parameters

rwl	A pointer to a rwlock structure.

static void rte_rwlock_read_unlock ( rte_rwlock_t *  rwl )

inlinestatic

Release a read lock.

Parameters

rwl	A pointer to the rwlock structure.

static void rte_rwlock_write_lock ( rte_rwlock_t *  rwl )

inlinestatic

Take a write lock. Loop until the lock is held.

Parameters

rwl	A pointer to a rwlock structure.

static void rte_rwlock_write_unlock ( rte_rwlock_t *  rwl )

inlinestatic

Release a write lock.

Parameters

rwl	A pointer to a rwlock structure.