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Annotation of src/usr.bin/ssh/monitor_mm.h, Revision 1.1

1.1     ! provos      1: /*
        !             2:  * Copyright 2002 Niels Provos <provos@citi.umich.edu>
        !             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
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  *
        !            14:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            15:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            16:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            17:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            18:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            19:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            20:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            21:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            22:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            23:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            24:  */
        !            25:
        !            26: #ifndef _MM_H_
        !            27: #define _MM_H_
        !            28: #include <sys/tree.h>
        !            29:
        !            30: struct mm_share {
        !            31:        RB_ENTRY(mm_share) next;
        !            32:        void *address;
        !            33:        size_t size;
        !            34: };
        !            35:
        !            36: struct mm_master {
        !            37:        RB_HEAD(mmtree, mm_share) rb_free;
        !            38:        struct mmtree rb_allocated;
        !            39:        void *address;
        !            40:        size_t size;
        !            41:
        !            42:        struct mm_master *mmalloc;      /* Used to completely share */
        !            43:
        !            44:        int write;              /* used to writing to other party */
        !            45:        int read;               /* used for reading from other party */
        !            46: };
        !            47:
        !            48: RB_PROTOTYPE(mmtree, mm_share, next, mm_compare)
        !            49:
        !            50: #define MM_MINSIZE             128
        !            51:
        !            52: #define MM_ADDRESS_END(x)      (void *)((u_char *)(x)->address + (x)->size)
        !            53:
        !            54: struct mm_master *mm_create(struct mm_master *, size_t);
        !            55: void mm_destroy(struct mm_master *);
        !            56:
        !            57: void mm_share_sync(struct mm_master **, struct mm_master **);
        !            58:
        !            59: void *mm_malloc(struct mm_master *, size_t);
        !            60: void *mm_xmalloc(struct mm_master *, size_t);
        !            61: void mm_free(struct mm_master *, void *);
        !            62:
        !            63: void mm_memvalid(struct mm_master *, void *, size_t);
        !            64: #endif /* _MM_H_ */