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1 | /** |
2 | * D header file for POSIX. | |
3 | * | |
4 | * Copyright: Copyright Sean Kelly 2005 - 2009. | |
5 | * License: $(HTTP www.boost.org/LICENSE_1_0.txt, Boost License 1.0). | |
6 | * Authors: Sean Kelly, Alex Rønne Petersen | |
7 | * Standards: The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition | |
8 | */ | |
9 | ||
10 | /* Copyright Sean Kelly 2005 - 2009. | |
11 | * Distributed under the Boost Software License, Version 1.0. | |
12 | * (See accompanying file LICENSE or copy at | |
13 | * http://www.boost.org/LICENSE_1_0.txt) | |
14 | */ | |
15 | module core.sys.posix.semaphore; | |
16 | ||
92dd3e71 IB |
17 | import core.sys.posix.config; |
18 | import core.sys.posix.time; | |
b4c522fa IB |
19 | |
20 | version (OSX) | |
21 | version = Darwin; | |
22 | else version (iOS) | |
23 | version = Darwin; | |
24 | else version (TVOS) | |
25 | version = Darwin; | |
26 | else version (WatchOS) | |
27 | version = Darwin; | |
28 | ||
29 | version (Posix): | |
30 | extern (C): | |
31 | nothrow: | |
32 | @nogc: | |
33 | ||
34 | // | |
35 | // Required | |
36 | // | |
37 | /* | |
38 | sem_t | |
39 | SEM_FAILED | |
40 | ||
41 | int sem_close(sem_t*); | |
42 | int sem_destroy(sem_t*); | |
43 | int sem_getvalue(sem_t*, int*); | |
44 | int sem_init(sem_t*, int, uint); | |
92dd3e71 | 45 | sem_t* sem_open(const scope char*, int, ...); |
b4c522fa IB |
46 | int sem_post(sem_t*); |
47 | int sem_trywait(sem_t*); | |
92dd3e71 | 48 | int sem_unlink(const scope char*); |
b4c522fa IB |
49 | int sem_wait(sem_t*); |
50 | */ | |
51 | ||
52 | version (CRuntime_Glibc) | |
53 | { | |
54 | private alias int __atomic_lock_t; | |
55 | ||
56 | private struct _pthread_fastlock | |
57 | { | |
58 | c_long __status; | |
59 | __atomic_lock_t __spinlock; | |
60 | } | |
61 | ||
62 | struct sem_t | |
63 | { | |
64 | _pthread_fastlock __sem_lock; | |
65 | int __sem_value; | |
66 | void* __sem_waiting; | |
67 | } | |
68 | ||
69 | enum SEM_FAILED = cast(sem_t*) null; | |
70 | } | |
71 | else version (Darwin) | |
72 | { | |
73 | alias int sem_t; | |
74 | ||
75 | enum SEM_FAILED = cast(sem_t*) null; | |
76 | } | |
77 | else version (FreeBSD) | |
78 | { | |
79 | // FBSD-9.0 definition | |
80 | struct sem_t | |
81 | { | |
82 | uint _magic; | |
83 | struct _usem | |
84 | { | |
85 | shared uint _has_waiters; | |
86 | shared uint _count; | |
87 | uint _flags; | |
88 | } _usem _kern; | |
89 | } | |
90 | ||
91 | enum SEM_FAILED = cast(sem_t*) null; | |
92 | } | |
93 | else version (NetBSD) | |
94 | { | |
95 | alias size_t sem_t; | |
96 | ||
97 | enum SEM_FAILED = cast(sem_t*) null; | |
98 | } | |
99 | else version (OpenBSD) | |
100 | { | |
5fee5ec3 | 101 | struct __sem; |
b4c522fa IB |
102 | alias sem_t = __sem*; |
103 | ||
104 | enum SEM_FAILED = cast(sem_t*) null; | |
105 | } | |
106 | else version (DragonFlyBSD) | |
107 | { | |
108 | struct sem_t | |
109 | { | |
110 | uint _magic; | |
111 | struct _usem | |
112 | { | |
113 | shared uint _has_waiters; | |
114 | shared uint _count; | |
115 | uint _flags; | |
116 | } _usem _kern; | |
117 | } | |
118 | ||
119 | enum SEM_FAILED = cast(sem_t*) null; | |
120 | } | |
121 | else version (Solaris) | |
122 | { | |
123 | struct sem_t | |
124 | { | |
125 | uint sem_count; | |
126 | ushort sem_type; | |
127 | ushort sem_magic; | |
128 | ulong[3] sem_pad1; | |
129 | ulong[2] sem_pad2; | |
130 | } | |
131 | ||
132 | enum SEM_FAILED = cast(sem_t*)-1; | |
133 | } | |
134 | else version (CRuntime_Bionic) | |
135 | { | |
136 | struct sem_t | |
137 | { | |
138 | uint count; //volatile | |
139 | } | |
140 | ||
141 | enum SEM_FAILED = null; | |
142 | } | |
143 | else version (CRuntime_Musl) | |
144 | { | |
145 | struct sem_t { | |
6e5084b4 | 146 | int[4*c_long.sizeof/int.sizeof] __val; |
b4c522fa | 147 | } |
6e5084b4 IB |
148 | |
149 | enum SEM_FAILED = (sem_t*).init; | |
b4c522fa IB |
150 | } |
151 | else version (CRuntime_UClibc) | |
152 | { | |
153 | enum __SIZEOF_SEM_T = 16; | |
154 | ||
155 | union sem_t | |
156 | { | |
157 | byte[__SIZEOF_SEM_T] __size; | |
158 | c_long __align; | |
159 | } | |
160 | ||
161 | enum SEM_FAILED = cast(sem_t*) null; | |
162 | } | |
163 | else | |
164 | { | |
165 | static assert(false, "Unsupported platform"); | |
166 | } | |
167 | ||
168 | int sem_close(sem_t*); | |
169 | int sem_destroy(sem_t*); | |
170 | int sem_getvalue(sem_t*, int*); | |
171 | int sem_init(sem_t*, int, uint); | |
92dd3e71 | 172 | sem_t* sem_open(const scope char*, int, ...); |
b4c522fa IB |
173 | int sem_post(sem_t*); |
174 | int sem_trywait(sem_t*); | |
92dd3e71 | 175 | int sem_unlink(const scope char*); |
b4c522fa IB |
176 | int sem_wait(sem_t*); |
177 | ||
178 | // | |
179 | // Timeouts (TMO) | |
180 | // | |
181 | /* | |
92dd3e71 | 182 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
183 | */ |
184 | ||
185 | version (CRuntime_Glibc) | |
186 | { | |
92dd3e71 | 187 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
188 | } |
189 | else version (Darwin) | |
190 | { | |
92dd3e71 | 191 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
192 | } |
193 | else version (FreeBSD) | |
194 | { | |
92dd3e71 | 195 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
196 | } |
197 | else version (NetBSD) | |
198 | { | |
92dd3e71 | 199 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
200 | } |
201 | else version (OpenBSD) | |
202 | { | |
92dd3e71 | 203 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
204 | } |
205 | else version (DragonFlyBSD) | |
206 | { | |
92dd3e71 | 207 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
208 | } |
209 | else version (Solaris) | |
210 | { | |
92dd3e71 | 211 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
212 | } |
213 | else version (CRuntime_Bionic) | |
214 | { | |
92dd3e71 | 215 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
216 | } |
217 | else version (CRuntime_Musl) | |
218 | { | |
8da8c7d3 | 219 | pragma(mangle, muslRedirTime64Mangle!("sem_timedwait", "__sem_timedwait_time64")) |
92dd3e71 | 220 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
221 | } |
222 | else version (CRuntime_UClibc) | |
223 | { | |
92dd3e71 | 224 | int sem_timedwait(sem_t*, const scope timespec*); |
b4c522fa IB |
225 | } |
226 | else | |
227 | { | |
228 | static assert(false, "Unsupported platform"); | |
229 | } |