NAME¶
ck_pr_dec_ptr
,
ck_pr_dec_ptr_zero
,
ck_pr_dec_double
,
ck_pr_dec_double_zero
,
ck_pr_dec_char
,
ck_pr_dec_char_zero
,
ck_pr_dec_uint
,
ck_pr_dec_uint_zero
,
ck_pr_dec_int
,
ck_pr_dec_int_zero
,
ck_pr_dec_64
,
ck_pr_dec_64_zero
,
ck_pr_dec_32
,
ck_pr_dec_32_zero
,
ck_pr_dec_16
,
ck_pr_dec_16_zero
,
ck_pr_dec_8
,
ck_pr_dec_8_zero
—
atomic decrement operations
LIBRARY¶
Concurrency Kit (libck, -lck)
SYNOPSIS¶
#include
<ck_pr.h>
void
ck_pr_dec_ptr
(
void
*target);
void
ck_pr_dec_ptr_zero
(
void
*target,
bool
*z);
void
ck_pr_dec_double
(
double
*target);
void
ck_pr_dec_double_zero
(
double
*target,
bool
*z);
void
ck_pr_dec_char
(
char
*target);
void
ck_pr_dec_char_zero
(
char
*target,
bool
*z);
void
ck_pr_dec_uint
(
unsigned
int *target);
void
ck_pr_dec_uint_zero
(
unsigned
int *target,
bool *z);
void
ck_pr_dec_int
(
int
*target);
void
ck_pr_dec_int_zero
(
int
*target,
bool
*z);
void
ck_pr_dec_64
(
uint64_t
*target);
void
ck_pr_dec_64_zero
(
uint64_t
*target,
bool
*z);
void
ck_pr_dec_32
(
uint32_t
*target);
void
ck_pr_dec_32_zero
(
uint32_t
*target,
bool
*z);
void
ck_pr_dec_16
(
uint16_t
*target);
void
ck_pr_dec_16_zero
(
uint16_t
*target,
bool
*z);
void
ck_pr_dec_8
(
uint8_t
*target);
void
ck_pr_dec_8_zero
(
uint8_t
*target,
bool
*z);
DESCRIPTION¶
The
ck_pr_dec
(
3)
family of functions atomically decrement the value pointed to by
target.
RETURN VALUES¶
The ck_pr_dec_zero family of functions set the value pointed to by
z to true if the result of the decrement
operation was 0. They set the value pointed to by
z to false otherwise.
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_neg(3),
ck_pr_not(3),
ck_pr_add(3),
ck_pr_sub(3),
ck_pr_and(3),
ck_pr_or(3),
ck_pr_xor(3),
ck_pr_cas(3),
ck_pr_btc(3),
ck_pr_bts(3),
ck_pr_btr(3)
Additional information available at
http://concurrencykit.org/