src/server/util/atomic.h

Wed, 27 Nov 2024 23:00:07 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Wed, 27 Nov 2024 23:00:07 +0100
changeset 563
6ca97c99173e
parent 444
96d2ba2f28db
permissions
-rw-r--r--

add TODO to use a future ucx feature

41
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
1 /*
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
3 *
44
3da1f7b6847f added some error messages
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 43
diff changeset
4 * Copyright 2013 Olaf Wintermann. All rights reserved.
41
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
5 *
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
6 * Redistribution and use in source and binary forms, with or without
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
7 * modification, are permitted provided that the following conditions are met:
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
8 *
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
9 * 1. Redistributions of source code must retain the above copyright
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
10 * notice, this list of conditions and the following disclaimer.
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
11 *
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
12 * 2. Redistributions in binary form must reproduce the above copyright
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
13 * notice, this list of conditions and the following disclaimer in the
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
14 * documentation and/or other materials provided with the distribution.
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
15 *
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
26 * POSSIBILITY OF SUCH DAMAGE.
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
27 */
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
28
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
29 #ifndef ATOMIC_H
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
30 #define ATOMIC_H
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
31
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
32 #ifdef __cplusplus
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
33 extern "C" {
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
34 #endif
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
35
162
b169992137a8 improves cgi error handling and allows requests with empty headers
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 161
diff changeset
36 #ifdef __gnu_linux__
41
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
37
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
38 #define ws_atomic_inc32(intptr) __sync_fetch_and_add(intptr, 1)
444
96d2ba2f28db fix configuration referencing
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 162
diff changeset
39 #define ws_atomic_dec32(intptr) __sync_fetch_and_sub(intptr, 1) - 1
41
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
40 #define ws_atomic_add32(intptr, val) __sync_fetch_and_add(intptr, val)
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
41 #define ws_atomic_sub32(intptr, val) __sync_fetch_and_sub(intptr, val)
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
42
69
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 61
diff changeset
43 #elif defined(OSX)
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 61
diff changeset
44 #include <libkern/OSAtomic.h>
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 61
diff changeset
45
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 61
diff changeset
46 #define ws_atomic_inc32(intptr) OSAtomicIncrement32((volatile int32_t *)intptr)
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 61
diff changeset
47 #define ws_atomic_dec32(intptr) OSAtomicDecrement32((volatile int32_t *)intptr)
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 61
diff changeset
48
109
8a0a7754f123 experimental BSD support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 69
diff changeset
49 #elif defined(BSD)
8a0a7754f123 experimental BSD support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 69
diff changeset
50 #define ws_atomic_inc32(intptr) __sync_fetch_and_add(intptr, 1)
444
96d2ba2f28db fix configuration referencing
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 162
diff changeset
51 #define ws_atomic_dec32(intptr) __sync_fetch_and_sub(intptr, 1) - 1
109
8a0a7754f123 experimental BSD support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 69
diff changeset
52 #define ws_atomic_add32(intptr, val) __sync_fetch_and_add(intptr, val)
8a0a7754f123 experimental BSD support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 69
diff changeset
53 #define ws_atomic_sub32(intptr, val) __sync_fetch_and_sub(intptr, va
41
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
54 #else
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
55 // use atomic.h
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
56 #include <atomic.h>
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
57
61
c858850f3d3a improved configuration reloading
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 44
diff changeset
58 #define ws_atomic_inc32(intptr) atomic_inc_32_nv(intptr)
43
8ac56edb4e94 fixed solaris build
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 41
diff changeset
59 #define ws_atomic_dec32(intptr) atomic_dec_32_nv(intptr)
41
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
60 // TODO
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
61
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
62 #endif
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
63
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
64
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
65 #ifdef __cplusplus
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
66 }
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
67 #endif
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
68
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
69 #endif /* ATOMIC_H */
bb7a1f5a8b48 added Linux support
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
70

mercurial