ck_tflock(3) | Library Functions Manual | ck_tflock(3) |
NAME
ck_tflock_ticket_init
,
ck_tflock_ticket_write_lock
,
ck_tflock_ticket_write_unlock
,
ck_tflock_ticket_read_lock
,
ck_tflock_ticket_read_unlock
, —
centralized task-fair reader-writer locks
LIBRARY
Concurrency Kit (libck, -lck)
SYNOPSIS
#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);
DESCRIPTION
This is a centralized task-fair reader-writer lock. It requires little space overhead and has a low latency fast path.
EXAMPLE
#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; }
SEE ALSO
ck_brlock(3), ck_rwlock(3), ck_pflock(3), ck_swlock(3)
Additional information available at http://concurrencykit.org/
April 22, 2014. |