Plan 9 from Bell Labs’s /usr/web/sources/contrib/cinap_lenrek/hgfs/dat.h

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
Download the Plan 9 distribution.


enum {
	MAXPATH = 1024,
	BUFSZ = 1024,
	HASHSZ = 20,
};

typedef struct Revlog Revlog;
typedef struct Revmap Revmap;
typedef struct Revinfo Revinfo;
typedef struct Revtree Revtree;
typedef struct Revnode Revnode;
typedef struct Revfile Revfile;

struct Revmap
{
	int	rev;
	int	p1rev;
	int	p2rev;
	int	baserev;
	int	linkrev;

	uchar	hash[HASHSZ];

	int	flags;

	vlong	hoff;
	vlong	hlen;

	vlong	flen;

	void	*aux;
};

struct Revlog
{
	Ref;

	Revlog	*next;

	char	*path;

	int	ifd;
	int	dfd;

	vlong	ioff;

	int	nmap;
	Revmap	*map;
};

struct Revnode
{
	char	*name;
	uchar	*hash;
	uvlong	path;

	Revnode	*up;
	Revnode	*next;
	Revnode	*down;
	Revnode *before;

	char	mode;
};

struct Revinfo
{
	uchar	chash[HASHSZ];
	uchar	mhash[HASHSZ];

	char	*who;
	char	*why;
	ulong	when;

	vlong	logoff;
	vlong	loglen;
};

struct Revtree
{
	Ref;
	int	level;
	Revnode	*root;
};

struct Revfile
{
	int	level;

	Revinfo	*info;
	Revtree	*tree;
	Revnode	*node;
	Revlog	*rlog;

	char	*buf;
	int	fd;
};

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