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Annotation of 43BSD/sys/h/mman.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)mman.h      7.1 (Berkeley) 6/4/86
        !             7:  */
        !             8: 
        !             9: /* protections are chosen from these bits, or-ed together */
        !            10: #define        PROT_READ       0x1             /* pages can be read */
        !            11: #define        PROT_WRITE      0x2             /* pages can be written */
        !            12: #define        PROT_EXEC       0x4             /* pages can be executed */
        !            13: 
        !            14: /* sharing types: choose either SHARED or PRIVATE */
        !            15: #define        MAP_SHARED      1               /* share changes */
        !            16: #define        MAP_PRIVATE     2               /* changes are private */
        !            17: 
        !            18: /* advice to madvise */
        !            19: #define        MADV_NORMAL     0               /* no further special treatment */
        !            20: #define        MADV_RANDOM     1               /* expect random page references */
        !            21: #define        MADV_SEQUENTIAL 2               /* expect sequential page references */
        !            22: #define        MADV_WILLNEED   3               /* will need these pages */
        !            23: #define        MADV_DONTNEED   4               /* dont need these pages */

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