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_ptr_is_zero,
5     ck_pr_dec_double, ck_pr_dec_double_zero, ck_pr_dec_double_is_zero,
6     ck_pr_dec_char, ck_pr_dec_char_zero, ck_pr_dec_char_is_zero,
7     ck_pr_dec_uint, ck_pr_dec_uint_zero, ck_pr_dec_char_is_zero,
8     ck_pr_dec_int, ck_pr_dec_int_zero, ck_pr_dec_int_is_zero, ck_pr_dec_64,
9     ck_pr_dec_64_zero, ck_pr_dec_64_is_zero, ck_pr_dec_32, ck_pr_dec_32_zero,
10     ck_pr_dec_32_is_zero, ck_pr_dec_16, ck_pr_dec_16_zero,
11     ck_pr_dec_32_is_zero, ck_pr_dec_8, ck_pr_dec_8_zero, ck_pr_dec_8_is_zero
12     — atomic decrement operations
13

LIBRARY

15     Concurrency Kit (libck, -lck)
16

SYNOPSIS

18     #include <ck_pr.h>
19
20     void
21     ck_pr_dec_ptr(void *target);
22
23     void
24     ck_pr_dec_ptr_zero(void *target, bool *z);
25
26     bool
27     ck_pr_dec_ptr_is_zero(void *target);
28
29     void
30     ck_pr_dec_double(double *target);
31
32     void
33     ck_pr_dec_double_zero(double *target, bool *z);
34
35     bool
36     ck_pr_dec_double_is_zero(double *target);
37
38     void
39     ck_pr_dec_char(char *target);
40
41     void
42     ck_pr_dec_char_zero(char *target, bool *z);
43
44     bool
45     ck_pr_dec_char_is_zero(char *target);
46
47     void
48     ck_pr_dec_uint(unsigned int *target);
49
50     void
51     ck_pr_dec_uint_zero(unsigned int *target, bool *z);
52
53     bool
54     ck_pr_dec_uint_is_zero(unsigned int *target);
55
56     void
57     ck_pr_dec_int(int *target);
58
59     void
60     ck_pr_dec_int_zero(int *target, bool *z);
61
62     bool
63     ck_pr_dec_int_is_zero(int *target);
64
65     void
66     ck_pr_dec_64(uint64_t *target);
67
68     void
69     ck_pr_dec_64_zero(uint64_t *target, bool *z);
70
71     bool
72     ck_pr_dec_64_is_zero(uint64_t *target);
73
74     void
75     ck_pr_dec_32(uint32_t *target);
76
77     void
78     ck_pr_dec_32_zero(uint32_t *target, bool *z);
79
80     bool
81     ck_pr_dec_32_is_zero(uint32_t *target);
82
83     void
84     ck_pr_dec_16(uint16_t *target);
85
86     void
87     ck_pr_dec_16_zero(uint16_t *target, bool *z);
88
89     bool
90     ck_pr_dec_16_is_zero(uint16_t *target);
91
92     void
93     ck_pr_dec_8(uint8_t *target);
94
95     void
96     ck_pr_dec_8_zero(uint8_t *target, bool *z);
97
98     bool
99     ck_pr_dec_8_is_zero(uint8_t *target);
100

DESCRIPTION

102     The ck_pr_dec(3) family of functions atomically decrement the value
103     pointed to by target.
104

RETURN VALUES

106     The ck_pr_dec_zero family of functions set the value pointed to by z to
107     true if the result of the decrement operation was 0. They set the value
108     pointed to by z to false otherwise.  The ck_pr_dec_is_zero family of
109     function return true if the result of the decrement operation was 0 and
110     false otherwise.
111

SEE ALSO

113     ck_pr_fence_load(3), ck_pr_fence_load_depends(3), ck_pr_fence_store(3),
114     ck_pr_fence_memory(3), ck_pr_load(3), ck_pr_store(3), ck_pr_fas(3),
115     ck_pr_faa(3), ck_pr_inc(3), ck_pr_neg(3), ck_pr_not(3), ck_pr_add(3),
116     ck_pr_sub(3), ck_pr_and(3), ck_pr_or(3), ck_pr_xor(3), ck_pr_cas(3),
117     ck_pr_btc(3), ck_pr_bts(3), ck_pr_btr(3)
118
119     Additional information available at http://concurrencykit.org/
120
121                                 April 7, 2013
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