ck_pflock - Man Page

Concurrency Kit (libck, -lck)

#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);

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

#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;
}

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

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

ck_swlock(3), ck_tflock(3).