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/* Copyright (c) 2015 Ryan Castellucci, All Rights Reserved */
#ifndef __MMAPF_H_
#define __MMAPF_H_
typedef struct {
void *mem;
size_t mmap_sz;
size_t file_sz;
int fd;
} mmapf_ctx;
// file flags
#define MMAPF_RD 0x0001
#define MMAPF_WR 0x0002
#define MMAPF_RW (MMAPF_RD|MMAPF_WR)
#define MMAPF_CR 0x0004
#define MMAPF_EX 0x0008
// advise flags
#define MMAPF_RND 0x0100
#define MMAPF_SEQ 0x0200
#define MMAPF_PRE 0x0400
#define MMAPF_COW 0x0800
#define MMAPF_NOREUSE 0x1000
#define MMAPF_WILLNEED 0x2000
#define MMAPF_DONTNEED 0x4000
// convenience
#define MMAPF_RNDRD (MMAPF_RD|MMAPF_RND|MMAPF_PRE|MMAPF_WILLNEED)
#define MMAPF_RNDUP (MMAPF_RW|MMAPF_RND|MMAPF_PRE|MMAPF_WILLNEED)
#define MMAPF_SEQCR (MMAPF_WR|MMAPF_SEQ|MMAPF_CR|MMAPF_EX|MMAPF_NOREUSE|MMAPF_DONTNEED)
// returns
#define MMAPF_OKAY 0
#define MMAPF_EXFIRST 1000
#define MMAPF_ENREG 1001
#define MMAPF_ESIZE 1002
#define MMAPF_EXLAST 1003
char * mmapf_strerror(int);
int mmapf(mmapf_ctx *, const unsigned char *, size_t, int);
int munmapf(mmapf_ctx *);
/* vim: set ts=2 sw=2 et ai si: */
#endif /* __MMAPF_H_ */