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Diffstat (limited to '')
| -rw-r--r-- | netwerk/sctp/src/user_uma.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/netwerk/sctp/src/user_uma.h b/netwerk/sctp/src/user_uma.h new file mode 100644 index 0000000000..59d71fff42 --- /dev/null +++ b/netwerk/sctp/src/user_uma.h @@ -0,0 +1,96 @@ +/*- + * Copyright (c) 2009-2010 Brad Penoff + * Copyright (c) 2009-2010 Humaira Kamal + * Copyright (c) 2011-2012 Irene Ruengeler + * Copyright (c) 2011-2012 Michael Tuexen + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _USER_UMA_H_ +#define _USER_UMA_H_ + +#define UMA_ZFLAG_FULL 0x40000000 /* Reached uz_maxpages */ +#define UMA_ALIGN_PTR (sizeof(void *) - 1) /* Alignment fit for ptr */ + +/* __Userspace__ All these definitions will change for +userspace Universal Memory Allocator (UMA). These are included +for reference purposes and to avoid compile errors for the time being. +*/ +typedef int (*uma_ctor)(void *mem, int size, void *arg, int flags); +typedef void (*uma_dtor)(void *mem, int size, void *arg); +typedef int (*uma_init)(void *mem, int size, int flags); +typedef void (*uma_fini)(void *mem, int size); +typedef struct uma_zone * uma_zone_t; +typedef struct uma_keg * uma_keg_t; + +struct uma_cache { + int stub; /* TODO __Userspace__ */ +}; + +struct uma_keg { + int stub; /* TODO __Userspace__ */ +}; + +struct uma_zone { + char *uz_name; /* Text name of the zone */ + struct mtx *uz_lock; /* Lock for the zone (keg's lock) */ + uma_keg_t uz_keg; /* Our underlying Keg */ + + LIST_ENTRY(uma_zone) uz_link; /* List of all zones in keg */ + LIST_HEAD(,uma_bucket) uz_full_bucket; /* full buckets */ + LIST_HEAD(,uma_bucket) uz_free_bucket; /* Buckets for frees */ + + uma_ctor uz_ctor; /* Constructor for each allocation */ + uma_dtor uz_dtor; /* Destructor */ + uma_init uz_init; /* Initializer for each item */ + uma_fini uz_fini; /* Discards memory */ + + u_int64_t uz_allocs; /* Total number of allocations */ + u_int64_t uz_frees; /* Total number of frees */ + u_int64_t uz_fails; /* Total number of alloc failures */ + uint16_t uz_fills; /* Outstanding bucket fills */ + uint16_t uz_count; /* Highest value ub_ptr can have */ + + /* + * This HAS to be the last item because we adjust the zone size + * based on NCPU and then allocate the space for the zones. + */ + struct uma_cache uz_cpu[1]; /* Per cpu caches */ +}; + +/* Prototype */ +uma_zone_t +uma_zcreate(char *name, size_t size, uma_ctor ctor, uma_dtor dtor, + uma_init uminit, uma_fini fini, int align, uint32_t flags); + + +#define uma_zone_set_max(zone, number) /* stub TODO __Userspace__ */ + +uma_zone_t +uma_zcreate(char *name, size_t size, uma_ctor ctor, uma_dtor dtor, + uma_init uminit, uma_fini fini, int align, uint32_t flags) { + return NULL; /* stub TODO __Userspace__. Also place implementation in a separate .c file */ +} +#endif |