1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/sctp/src/user_uma.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,98 @@
1.4 +/*-
1.5 + * Copyright (c) 2009-2010 Brad Penoff
1.6 + * Copyright (c) 2009-2010 Humaira Kamal
1.7 + * Copyright (c) 2011-2012 Irene Ruengeler
1.8 + * Copyright (c) 2011-2012 Michael Tuexen
1.9 + *
1.10 + * All rights reserved.
1.11 + *
1.12 + * Redistribution and use in source and binary forms, with or without
1.13 + * modification, are permitted provided that the following conditions
1.14 + * are met:
1.15 + * 1. Redistributions of source code must retain the above copyright
1.16 + * notice, this list of conditions and the following disclaimer.
1.17 + * 2. Redistributions in binary form must reproduce the above copyright
1.18 + * notice, this list of conditions and the following disclaimer in the
1.19 + * documentation and/or other materials provided with the distribution.
1.20 + *
1.21 + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1.22 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.23 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.24 + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1.25 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.26 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.27 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.28 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.29 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.30 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.31 + * SUCH DAMAGE.
1.32 + */
1.33 +
1.34 +#ifndef _USER_UMA_H_
1.35 +#define _USER_UMA_H_
1.36 +
1.37 +#define UMA_ZFLAG_FULL 0x40000000 /* Reached uz_maxpages */
1.38 +#define UMA_ALIGN_PTR (sizeof(void *) - 1) /* Alignment fit for ptr */
1.39 +
1.40 +/* __Userspace__ All these definitions will change for
1.41 +userspace Universal Memory Allocator (UMA). These are included
1.42 +for reference purposes and to avoid compile errors for the time being.
1.43 +*/
1.44 +typedef int (*uma_ctor)(void *mem, int size, void *arg, int flags);
1.45 +typedef void (*uma_dtor)(void *mem, int size, void *arg);
1.46 +typedef int (*uma_init)(void *mem, int size, int flags);
1.47 +typedef void (*uma_fini)(void *mem, int size);
1.48 +typedef struct uma_zone * uma_zone_t;
1.49 +typedef struct uma_keg * uma_keg_t;
1.50 +
1.51 +struct uma_cache {
1.52 + int stub; /* TODO __Userspace__ */
1.53 +};
1.54 +
1.55 +struct uma_keg {
1.56 + int stub; /* TODO __Userspace__ */
1.57 +};
1.58 +
1.59 +struct uma_zone {
1.60 + char *uz_name; /* Text name of the zone */
1.61 + struct mtx *uz_lock; /* Lock for the zone (keg's lock) */
1.62 + uma_keg_t uz_keg; /* Our underlying Keg */
1.63 +
1.64 + LIST_ENTRY(uma_zone) uz_link; /* List of all zones in keg */
1.65 + LIST_HEAD(,uma_bucket) uz_full_bucket; /* full buckets */
1.66 + LIST_HEAD(,uma_bucket) uz_free_bucket; /* Buckets for frees */
1.67 +
1.68 + uma_ctor uz_ctor; /* Constructor for each allocation */
1.69 + uma_dtor uz_dtor; /* Destructor */
1.70 + uma_init uz_init; /* Initializer for each item */
1.71 + uma_fini uz_fini; /* Discards memory */
1.72 +
1.73 + u_int64_t uz_allocs; /* Total number of allocations */
1.74 + u_int64_t uz_frees; /* Total number of frees */
1.75 + u_int64_t uz_fails; /* Total number of alloc failures */
1.76 + uint16_t uz_fills; /* Outstanding bucket fills */
1.77 + uint16_t uz_count; /* Highest value ub_ptr can have */
1.78 +
1.79 + /*
1.80 + * This HAS to be the last item because we adjust the zone size
1.81 + * based on NCPU and then allocate the space for the zones.
1.82 + */
1.83 + struct uma_cache uz_cpu[1]; /* Per cpu caches */
1.84 +};
1.85 +
1.86 +/* Prototype */
1.87 +uma_zone_t
1.88 +uma_zcreate(char *name, size_t size, uma_ctor ctor, uma_dtor dtor,
1.89 + uma_init uminit, uma_fini fini, int align, u_int32_t flags);
1.90 +
1.91 +
1.92 +#define uma_zone_set_max(zone, number) /* stub TODO __Userspace__ */
1.93 +
1.94 +uma_zone_t
1.95 +uma_zcreate(char *name, size_t size, uma_ctor ctor, uma_dtor dtor,
1.96 + uma_init uminit, uma_fini fini, int align, u_int32_t flags)
1.97 +{
1.98 + return NULL; /* stub TODO __Userspace__. Also place implementation in a separate .c file */
1.99 +
1.100 +}
1.101 +#endif
