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Annotation of 42BSD/sys/h/mman.h, revision 1.1.1.1

1.1       root        1: /*     mman.h  6.1     83/07/29        */
                      2: 
                      3: /* protections are chosen from these bits, or-ed together */
                      4: #define        PROT_READ       0x1             /* pages can be read */
                      5: #define        PROT_WRITE      0x2             /* pages can be written */
                      6: #define        PROT_EXEC       0x4             /* pages can be executed */
                      7: 
                      8: /* sharing types: choose either SHARED or PRIVATE */
                      9: #define        MAP_SHARED      1               /* share changes */
                     10: #define        MAP_PRIVATE     2               /* changes are private */
                     11: 
                     12: /* advice to madvise */
                     13: #define        MADV_NORMAL     0               /* no further special treatment */
                     14: #define        MADV_RANDOM     1               /* expect random page references */
                     15: #define        MADV_SEQUENTIAL 2               /* expect sequential page references */
                     16: #define        MADV_WILLNEED   3               /* will need these pages */
                     17: #define        MADV_DONTNEED   4               /* dont need these pages */

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