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Annotation of src/usr.bin/ssh/monitor_mm.h, Revision 1.2

1.2     ! stevesk     1: /*     $OpenBSD$       */
        !             2:
1.1       provos      3: /*
                      4:  * Copyright 2002 Niels Provos <provos@citi.umich.edu>
                      5:  * All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  *
                     16:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     17:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     18:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     19:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     20:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     21:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     22:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     23:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     24:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     25:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     26:  */
                     27:
                     28: #ifndef _MM_H_
                     29: #define _MM_H_
                     30: #include <sys/tree.h>
                     31:
                     32: struct mm_share {
                     33:        RB_ENTRY(mm_share) next;
                     34:        void *address;
                     35:        size_t size;
                     36: };
                     37:
                     38: struct mm_master {
                     39:        RB_HEAD(mmtree, mm_share) rb_free;
                     40:        struct mmtree rb_allocated;
                     41:        void *address;
                     42:        size_t size;
                     43:
                     44:        struct mm_master *mmalloc;      /* Used to completely share */
                     45:
                     46:        int write;              /* used to writing to other party */
                     47:        int read;               /* used for reading from other party */
                     48: };
                     49:
                     50: RB_PROTOTYPE(mmtree, mm_share, next, mm_compare)
                     51:
                     52: #define MM_MINSIZE             128
                     53:
                     54: #define MM_ADDRESS_END(x)      (void *)((u_char *)(x)->address + (x)->size)
                     55:
                     56: struct mm_master *mm_create(struct mm_master *, size_t);
                     57: void mm_destroy(struct mm_master *);
                     58:
                     59: void mm_share_sync(struct mm_master **, struct mm_master **);
                     60:
                     61: void *mm_malloc(struct mm_master *, size_t);
                     62: void *mm_xmalloc(struct mm_master *, size_t);
                     63: void mm_free(struct mm_master *, void *);
                     64:
                     65: void mm_memvalid(struct mm_master *, void *, size_t);
                     66: #endif /* _MM_H_ */