Other Alias
ck_pflock_write_lock, ck_pflock_write_unlock, ck_pflock_read_lock, ck_pflock_read_unlockLIBRARY
Concurrency Kit (libck, -lck)SYNOPSIS
In ck_pflock.hck_pflock_t lock = CK_PFLOCK_INITIALIZER;
Ft void Fn ck_pflock_init ck_pflock_t *lock Ft void Fn ck_pflock_write_lock ck_pflock_t *lock Ft void Fn ck_pflock_write_unlock ck_pflock_t *lock Ft void Fn ck_pflock_read_lock ck_pflock_t *lock Ft void Fn 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;
}