1ck_pr_dec(3)             BSD Library Functions Manual             ck_pr_dec(3)
2

NAME

4     ck_pr_dec_ptr, ck_pr_dec_ptr_zero, ck_pr_dec_double,
5     ck_pr_dec_double_zero, ck_pr_dec_char, ck_pr_dec_char_zero,
6     ck_pr_dec_uint, ck_pr_dec_uint_zero, ck_pr_dec_int, ck_pr_dec_int_zero,
7     ck_pr_dec_64, ck_pr_dec_64_zero, ck_pr_dec_32, ck_pr_dec_32_zero,
8     ck_pr_dec_16, ck_pr_dec_16_zero, ck_pr_dec_8, ck_pr_dec_8_zero — atomic
9     decrement operations
10

LIBRARY

12     Concurrency Kit (libck, -lck)
13

SYNOPSIS

15     #include <ck_pr.h>
16
17     void
18     ck_pr_dec_ptr(void *target);
19
20     void
21     ck_pr_dec_ptr_zero(void *target, bool *z);
22
23     void
24     ck_pr_dec_double(double *target);
25
26     void
27     ck_pr_dec_double_zero(double *target, bool *z);
28
29     void
30     ck_pr_dec_char(char *target);
31
32     void
33     ck_pr_dec_char_zero(char *target, bool *z);
34
35     void
36     ck_pr_dec_uint(unsigned int *target);
37
38     void
39     ck_pr_dec_uint_zero(unsigned int *target, bool *z);
40
41     void
42     ck_pr_dec_int(int *target);
43
44     void
45     ck_pr_dec_int_zero(int *target, bool *z);
46
47     void
48     ck_pr_dec_64(uint64_t *target);
49
50     void
51     ck_pr_dec_64_zero(uint64_t *target, bool *z);
52
53     void
54     ck_pr_dec_32(uint32_t *target);
55
56     void
57     ck_pr_dec_32_zero(uint32_t *target, bool *z);
58
59     void
60     ck_pr_dec_16(uint16_t *target);
61
62     void
63     ck_pr_dec_16_zero(uint16_t *target, bool *z);
64
65     void
66     ck_pr_dec_8(uint8_t *target);
67
68     void
69     ck_pr_dec_8_zero(uint8_t *target, bool *z);
70

DESCRIPTION

72     The ck_pr_dec(3) family of functions atomically decrement the value
73     pointed to by target.
74

RETURN VALUES

76     The ck_pr_dec_zero family of functions set the value pointed to by z to
77     true if the result of the decrement operation was 0. They set the value
78     pointed to by z to false otherwise.
79

SEE ALSO

81     ck_pr_fence_load(3), ck_pr_fence_load_depends(3), ck_pr_fence_store(3),
82     ck_pr_fence_memory(3), ck_pr_load(3), ck_pr_store(3), ck_pr_fas(3),
83     ck_pr_faa(3), ck_pr_inc(3), ck_pr_neg(3), ck_pr_not(3), ck_pr_add(3),
84     ck_pr_sub(3), ck_pr_and(3), ck_pr_or(3), ck_pr_xor(3), ck_pr_cas(3),
85     ck_pr_btc(3), ck_pr_bts(3), ck_pr_btr(3)
86
87     Additional information available at http://concurrencykit.org/
88
89                                 April 7, 2013
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