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Annotation of 43BSD/sys/h/mman.h, revision 1.1.1.1

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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