ck_tflock3
Centralized task-fair reader-writer locks
Usage
#include <ck_tflock.h>
ck_tflock_ticket_t lock = CK_TFLOCK_TICKET_INITIALIZER;
void
ck_tflock_ticket_init(ck_tflock_ticket_t *lock);
void
ck_tflock_ticket_write_lock(ck_tflock_ticket_t *lock);
void
ck_tflock_ticket_write_unlock(ck_tflock_ticket_t *lock);
void
ck_tflock_ticket_read_lock(ck_tflock_ticket_t *lock);
void
ck_tflock_ticket_read_unlock(ck_tflock_ticket_t *lock);
Library
Concurrency Kit (libck, -lck)
Overview
This is a centralized task-fair reader-writer lock. It requires little space overhead and has a low latency fast path.
Examples
#include <ck_tflock.h>
static ck_tflock_ticket_t lock = CK_TFLOCK_INITIALIZER;
static void
reader(void)
{
for (;;) {
ck_tflock_ticket_read_lock(&lock);
/* Read-side critical section. */
ck_tflock_ticket_read_unlock(&lock);
}
return;
}
static void
writer(void)
{
for (;;) {
ck_tflock_ticket_write_lock(&lock);
/* Write-side critical section. */
ck_tflock_ticket_write_unlock(&lock);
}
return;
}
Releases
Unchanged in 4 releases since Debian 9 (Stretch).