| 1 | /*
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| 2 | * shred_mman.h - Shared structures & mnemonics used by the <mman.h> user library.
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| 3 | *
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| 4 | * Author Alain Greiner (2016,2017,2018,2019)
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| 5 | *
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| 6 | * Copyright (c) UPMC Sorbonne Universites
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| 7 | *
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| 8 | * This file is part of ALMOS-MKH.
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| 9 | *
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| 10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it
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| 11 | * under the terms of the GNU General Public License as published by
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| 12 | * the Free Software Foundation; version 2.0 of the License.
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| 13 | *
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| 14 | * ALMOS-MKH is distributed in the hope that it will be useful, but
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 17 | * General Public License for more details.
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| 18 | *
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| 19 | * You should have received a copy of the GNU General Public License
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| 20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation,
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| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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| 22 | */
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| 23 |
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| 24 | #ifndef _SHARED_MMAN_H_
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| 25 | #define _SHARED_MMAN_H_
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| 26 |
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| 27 | /*******************************************************************************************
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| 28 | * This structure is used by the mmap() syscall().
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| 29 | ******************************************************************************************/
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| 30 |
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| 31 | typedef enum
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| 32 | {
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| 33 | PROT_NONE = 0x0, /*! no access */
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| 34 | PROT_EXEC = 0x1, /*! executable */
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| 35 | PROT_WRITE = 0x2, /*! writable */
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| 36 | PROT_READ = 0x4, /*! readable */
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| 37 | }
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| 38 | mmap_prot_t;
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| 39 |
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| 40 | typedef enum
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| 41 | {
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| 42 | MAP_FILE = 0x00000000, /*! map an open file defined by its fdid */
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| 43 | MAP_ANON = 0x00000001, /*! map an anonymous vseg in local cluster */
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| 44 | MAP_REMOTE = 0x00000002, /*! map an anonymous vseg in remote cluster (cxy == fdid) */
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| 45 | MAP_PRIVATE = 0x00000010, /*! modifications are private to the calling process */
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| 46 | MAP_SHARED = 0x00000020, /*! modifications are shared */
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| 47 | MAP_FIXED = 0x00000100, /*! non supported (user defined base address) */
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| 48 | }
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| 49 | mmap_flags_t;
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| 50 |
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| 51 | typedef struct mmap_attr_s
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| 52 | {
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| 53 | void * addr; /*! buffer for allocated vseg base address (return value) */
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| 54 | unsigned int length; /*! requested vseg size (bytes) */
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| 55 | unsigned int prot; /*! access modes */
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| 56 | unsigned int flags; /*! MAP_FILE / MAP_ANON / MAP_PRIVATE / MAP_SHARED */
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| 57 | unsigned int fdid; /*! file descriptor index (if MAP_FILE) */
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| 58 | unsigned int offset; /*! file offset (if MAP_FILE) */
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| 59 | }
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| 60 | mmap_attr_t;
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| 61 |
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| 62 | #endif
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