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comparison: netwerk/sctp/src/user_uma.h
netwerk/sctp/src/user_uma.h
- branch
- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
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| -1:000000000000 | 0:c20fae5fa9d7 |
|---|---|
| 1 /*- | |
| 2 * Copyright (c) 2009-2010 Brad Penoff | |
| 3 * Copyright (c) 2009-2010 Humaira Kamal | |
| 4 * Copyright (c) 2011-2012 Irene Ruengeler | |
| 5 * Copyright (c) 2011-2012 Michael Tuexen | |
| 6 * | |
| 7 * All rights reserved. | |
| 8 * | |
| 9 * Redistribution and use in source and binary forms, with or without | |
| 10 * modification, are permitted provided that the following conditions | |
| 11 * are met: | |
| 12 * 1. Redistributions of source code must retain the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer. | |
| 14 * 2. Redistributions in binary form must reproduce the above copyright | |
| 15 * notice, this list of conditions and the following disclaimer in the | |
| 16 * documentation and/or other materials provided with the distribution. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
| 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 28 * SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef _USER_UMA_H_ | |
| 32 #define _USER_UMA_H_ | |
| 33 | |
| 34 #define UMA_ZFLAG_FULL 0x40000000 /* Reached uz_maxpages */ | |
| 35 #define UMA_ALIGN_PTR (sizeof(void *) - 1) /* Alignment fit for ptr */ | |
| 36 | |
| 37 /* __Userspace__ All these definitions will change for | |
| 38 userspace Universal Memory Allocator (UMA). These are included | |
| 39 for reference purposes and to avoid compile errors for the time being. | |
| 40 */ | |
| 41 typedef int (*uma_ctor)(void *mem, int size, void *arg, int flags); | |
| 42 typedef void (*uma_dtor)(void *mem, int size, void *arg); | |
| 43 typedef int (*uma_init)(void *mem, int size, int flags); | |
| 44 typedef void (*uma_fini)(void *mem, int size); | |
| 45 typedef struct uma_zone * uma_zone_t; | |
| 46 typedef struct uma_keg * uma_keg_t; | |
| 47 | |
| 48 struct uma_cache { | |
| 49 int stub; /* TODO __Userspace__ */ | |
| 50 }; | |
| 51 | |
| 52 struct uma_keg { | |
| 53 int stub; /* TODO __Userspace__ */ | |
| 54 }; | |
| 55 | |
| 56 struct uma_zone { | |
| 57 char *uz_name; /* Text name of the zone */ | |
| 58 struct mtx *uz_lock; /* Lock for the zone (keg's lock) */ | |
| 59 uma_keg_t uz_keg; /* Our underlying Keg */ | |
| 60 | |
| 61 LIST_ENTRY(uma_zone) uz_link; /* List of all zones in keg */ | |
| 62 LIST_HEAD(,uma_bucket) uz_full_bucket; /* full buckets */ | |
| 63 LIST_HEAD(,uma_bucket) uz_free_bucket; /* Buckets for frees */ | |
| 64 | |
| 65 uma_ctor uz_ctor; /* Constructor for each allocation */ | |
| 66 uma_dtor uz_dtor; /* Destructor */ | |
| 67 uma_init uz_init; /* Initializer for each item */ | |
| 68 uma_fini uz_fini; /* Discards memory */ | |
| 69 | |
| 70 u_int64_t uz_allocs; /* Total number of allocations */ | |
| 71 u_int64_t uz_frees; /* Total number of frees */ | |
| 72 u_int64_t uz_fails; /* Total number of alloc failures */ | |
| 73 uint16_t uz_fills; /* Outstanding bucket fills */ | |
| 74 uint16_t uz_count; /* Highest value ub_ptr can have */ | |
| 75 | |
| 76 /* | |
| 77 * This HAS to be the last item because we adjust the zone size | |
| 78 * based on NCPU and then allocate the space for the zones. | |
| 79 */ | |
| 80 struct uma_cache uz_cpu[1]; /* Per cpu caches */ | |
| 81 }; | |
| 82 | |
| 83 /* Prototype */ | |
| 84 uma_zone_t | |
| 85 uma_zcreate(char *name, size_t size, uma_ctor ctor, uma_dtor dtor, | |
| 86 uma_init uminit, uma_fini fini, int align, u_int32_t flags); | |
| 87 | |
| 88 | |
| 89 #define uma_zone_set_max(zone, number) /* stub TODO __Userspace__ */ | |
| 90 | |
| 91 uma_zone_t | |
| 92 uma_zcreate(char *name, size_t size, uma_ctor ctor, uma_dtor dtor, | |
| 93 uma_init uminit, uma_fini fini, int align, u_int32_t flags) | |
| 94 { | |
| 95 return NULL; /* stub TODO __Userspace__. Also place implementation in a separate .c file */ | |
| 96 | |
| 97 } | |
| 98 #endif |
