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/
