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