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ck_pflock(3) FreeBSD Library Functions Manual ck_pflock(3) NAME ck_pflock_init, ck_pflock_write_lock, ck_pflock_write_unlock, ck_pflock_read_lock, ck_pflock_read_unlock, -- 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/ April 22, 2014.
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | EXAMPLE | SEE ALSO
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