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uma.h (129913) uma.h (132987)
1/*
2 * Copyright (c) 2002, Jeffrey Roberson <jeff@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
1/*
2 * Copyright (c) 2002, Jeffrey Roberson <jeff@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/vm/uma.h 129913 2004-06-01 01:36:26Z bmilekic $
26 * $FreeBSD: head/sys/vm/uma.h 132987 2004-08-02 00:18:36Z green $
27 *
28 */
29
30/*
31 * uma.h - External definitions for the Universal Memory Allocator
32 *
33*/
34

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49
50/*
51 * Item constructor
52 *
53 * Arguments:
54 * item A pointer to the memory which has been allocated.
55 * arg The arg field passed to uma_zalloc_arg
56 * size The size of the allocated item
27 *
28 */
29
30/*
31 * uma.h - External definitions for the Universal Memory Allocator
32 *
33*/
34

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49
50/*
51 * Item constructor
52 *
53 * Arguments:
54 * item A pointer to the memory which has been allocated.
55 * arg The arg field passed to uma_zalloc_arg
56 * size The size of the allocated item
57 * flags See zalloc flags
57 *
58 * Returns:
58 *
59 * Returns:
59 * Nothing
60 * 0 on success
61 * errno on failure
60 *
61 * Discussion:
62 * The constructor is called just before the memory is returned
63 * to the user. It may block if necessary.
64 */
62 *
63 * Discussion:
64 * The constructor is called just before the memory is returned
65 * to the user. It may block if necessary.
66 */
65typedef void (*uma_ctor)(void *mem, int size, void *arg);
67typedef int (*uma_ctor)(void *mem, int size, void *arg, int flags);
66
67/*
68 * Item destructor
69 *
70 * Arguments:
71 * item A pointer to the memory which has been allocated.
72 * size The size of the item being destructed.
73 * arg Argument passed through uma_zfree_arg

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83typedef void (*uma_dtor)(void *mem, int size, void *arg);
84
85/*
86 * Item initializer
87 *
88 * Arguments:
89 * item A pointer to the memory which has been allocated.
90 * size The size of the item being initialized.
68
69/*
70 * Item destructor
71 *
72 * Arguments:
73 * item A pointer to the memory which has been allocated.
74 * size The size of the item being destructed.
75 * arg Argument passed through uma_zfree_arg

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85typedef void (*uma_dtor)(void *mem, int size, void *arg);
86
87/*
88 * Item initializer
89 *
90 * Arguments:
91 * item A pointer to the memory which has been allocated.
92 * size The size of the item being initialized.
93 * flags See zalloc flags
91 *
92 * Returns:
94 *
95 * Returns:
93 * Nothing
96 * 0 on success
97 * errno on failure
94 *
95 * Discussion:
96 * The initializer is called when the memory is cached in the uma zone.
97 * this should be the same state that the destructor leaves the object in.
98 */
98 *
99 * Discussion:
100 * The initializer is called when the memory is cached in the uma zone.
101 * this should be the same state that the destructor leaves the object in.
102 */
99typedef void (*uma_init)(void *mem, int size);
103typedef int (*uma_init)(void *mem, int size, int flags);
100
101/*
102 * Item discard function
103 *
104 * Arguments:
105 * item A pointer to memory which has been 'freed' but has not left the
106 * zone's cache.
107 * size The size of the item being discarded.

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105/*
106 * Item discard function
107 *
108 * Arguments:
109 * item A pointer to memory which has been 'freed' but has not left the
110 * zone's cache.
111 * size The size of the item being discarded.

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