ck_pflock man page

ck_pflock_init, ck_pflock_write_lock, ck_pflock_write_unlock, ck_pflock_read_lock, ck_pflock_read_unlock, ā€” centralized phase-fair reader-writer locks

Library

Concurrency Kit (libck, -lck)

Synopsis

#include <ck_pflock.h>

ck_pflock_t lock = CK_PFLOCK_INITIALIZER;


void
ck_pflock_init(ck_pflock_t *lock);

void
ck_pflock_write_lock(ck_pflock_t *lock);

void
ck_pflock_write_unlock(ck_pflock_t *lock);

void
ck_pflock_read_lock(ck_pflock_t *lock);

void
ck_pflock_read_unlock(ck_pflock_t *lock);

Description

This is a centralized phase-fair reader-writer lock. It requires little space overhead and has a low latency fast path.

Example

#include <ck_pflock.h> 
 
static ck_pflock_t lock = CK_TFLOCK_INITIALIZER; 
 
static void 
reader(void) 
{ 
 
	for (;;) { 
		ck_pflock_read_lock(&lock); 
		/* Read-side critical section. */ 
		ck_pflock_read_unlock(&lock); 
	} 
 
	return; 
} 
 
static void 
writer(void) 
{ 
 
	for (;;) { 
		ck_pflock_write_lock(&lock); 
		/* Write-side critical section. */ 
		ck_pflock_write_unlock(&lock); 
	} 
 
	return; 
}

See Also

ck_brlock(3), ck_rwlock(3), ck_tflock(3), ck_swlock(3)

Additional information available at http://concurrencykit.org/

Referenced By

ck_swlock(3), ck_tflock(3).

April 22, 2014.