25 lines
673 B
C
25 lines
673 B
C
#ifndef VM_MMAP_H
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#define VM_MMAP_H
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#include <hash.h>
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#include "threads/thread.h"
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#include "filesys/file.h"
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/* A mapping identifier type. */
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typedef unsigned mapid_t;
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/* A structure to represent a memory mapped file. */
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struct mmap_entry {
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mapid_t mapping; /* The mapping identifier of the mapped file. */
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struct file *file; /* A pointer to the file that is being mapped. */
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void *upage; /* The start address of the file data in the user VM. */
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struct hash_elem elem; /* An elem for the hash table. */
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};
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bool mmap_init (void);
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struct mmap_entry *mmap_insert (struct file *file, void *upage);
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void mmap_destroy (void);
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#endif /* vm/mmap.h */
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