ck_pr_btr(3) | Library Functions Manual | ck_pr_btr(3) |
NAME
ck_pr_btr_ptr
,
ck_pr_btr_uint
,
ck_pr_btr_int
, ck_pr_btr_64
,
ck_pr_btr_32
, ck_pr_btr_16
— atomic bit test-and-reset operations
LIBRARY
Concurrency Kit (libck, -lck)
SYNOPSIS
#include
<ck_pr.h>
bool
ck_pr_btr_ptr
(void
*target, unsigned int
bit_index);
bool
ck_pr_btr_uint
(uint
*target, unsigned int
bit_index);
bool
ck_pr_btr_int
(int
*target, unsigned int
bit_index);
bool
ck_pr_btr_64
(uint64_t
*target, unsigned int
bit_index);
bool
ck_pr_btr_32
(uint32_t
*target, unsigned int
bit_index);
bool
ck_pr_btr_16
(uint16_t
*target, unsigned int
bit_index);
DESCRIPTION
The
ck_pr_btr
(3)
family of functions atomically fetch the value of the bit in
target at index bit_index and
set that bit to 0.
RETURN VALUES
This family of functions returns the original value of the bit at offset bit_index that is in the value pointed to by target.
SEE ALSO
ck_pr_fence_load(3), ck_pr_fence_load_depends(3), ck_pr_fence_store(3), ck_pr_fence_memory(3), ck_pr_load(3), ck_pr_store(3), ck_pr_fas(3), ck_pr_faa(3), ck_pr_inc(3), ck_pr_dec(3), ck_pr_neg(3), ck_pr_not(3), ck_pr_sub(3), ck_pr_and(3), ck_pr_or(3), ck_pr_xor(3), ck_pr_add(3), ck_pr_btc(3), ck_pr_bts(3), ck_pr_cas(3)
Additional information available at http://concurrencykit.org/
April 11, 2013 |