#define nelem(x)	(sizeof(x)/sizeof((x)[0]))

/* avoid name conflicts */
#define accept	pm_accept
#define listen  pm_listen
#define sleep	ksleep
#define wakeup	kwakeup
#define strtod		fmtstrtod


/* conflicts on some os's */
#define encrypt	libencrypt
#define decrypt libdecrypt
#define oserror	liboserror
#define clone	libclone
#define log2	liblog2
#define log	liblog
#define reboot	libreboot
#define strtoll libstrtoll
#undef timeradd
#define timeradd	xtimeradd


#ifndef nil
#define	nil	((void*)0)
#endif

typedef unsigned long long uvlong;

typedef unsigned char	p9_uchar;
typedef unsigned int	p9_uint;
typedef unsigned int	p9_ulong;
typedef int		p9_long;
typedef signed char	p9_schar;
typedef unsigned short	p9_ushort;
typedef uint16_t 		p9_u16int;
typedef unsigned int	p9_u32int;
typedef p9_u32int mpdigit;
typedef uvlong 	p9_u64int;

typedef uint16_t		uint16;
typedef uint32_t		uint32;

/* make sure we don't conflict with predefined types */
#define schar	p9_schar
#define uchar	p9_uchar
#define ushort	p9_ushort
#define uint	p9_uint
#define u16int	p9_u16int
#define u32int	p9_u32int
#define u64int	p9_u64int

/* #define long int rather than p9_long so that "unsigned long" is valid */
#define long	int
#define ulong	p9_ulong
#define vlong	p9_vlong
#define uvlong	p9_uvlong

#define SET(x)		((x)=0)
#define	USED(x)		if(x);else

#include <utf.h>
#include <fmt.h>


/*
 * Syscall data structures
 */
#define	MORDER	0x0003	/* mask for bits defining order of mounting */
#define	MREPL	0x0000	/* mount replaces object */
#define	MBEFORE	0x0001	/* mount goes before others in union directory */
#define	MAFTER	0x0002	/* mount goes after others in union directory */
#define	MCREATE	0x0004	/* permit creation in mounted directory */
#define	MCACHE	0x0010	/* cache some data */
#define	MMASK	0x0017	/* all bits on */

#define	OREAD	0	/* open for read */
#define	OWRITE	1	/* write */
#define	ORDWR	2	/* read and write */
#define	OEXEC	3	/* execute, == read but check execute permission */
#define	OTRUNC	16	/* or'ed in (except for exec), truncate file first */
#define	OCEXEC	32	/* or'ed in, close on exec */
#define	ORCLOSE	64	/* or'ed in, remove on close */
#define	OEXCL   0x1000	/* or'ed in, exclusive create */

#define	AEXIST	0	/* accessible: exists */
#define	AEXEC	1	/* execute access */
#define	AWRITE	2	/* write access */
#define	AREAD	4	/* read access */

#define	NCONT	0	/* continue after note */
#define	NDFLT	1	/* terminate after note */
#define	NSAVE	2	/* clear note but hold state */
#define	NRSTR	3	/* restore saved state */

#define	ERRMAX			128	/* max length of error string */
#define	KNAMELEN		28	/* max length of name held in kernel */

/* bits in Qid.type */
#define QTDIR		0x80		/* type bit for directories */
#define QTAPPEND	0x40		/* type bit for append only files */
#define QTEXCL		0x20		/* type bit for exclusive use files */
#define QTMOUNT		0x10		/* type bit for mounted channel */
#define QTAUTH		0x08		/* type bit for authentication file */
#define QTFILE		0x00		/* plain file */

/* bits in Dir.mode */
#define DMDIR		0x80000000	/* mode bit for directories */
#define DMAPPEND		0x40000000	/* mode bit for append only files */
#define DMEXCL		0x20000000	/* mode bit for exclusive use files */
#define DMMOUNT		0x10000000	/* mode bit for mounted channel */
#define DMAUTH		0x08000000	/* mode bit for authentication files */
#define DMREAD		0x4		/* mode bit for read permission */
#define DMWRITE		0x2		/* mode bit for write permission */
#define DMEXEC		0x1		/* mode bit for execute permission */

typedef struct Lock
{
#ifdef PTHREAD
	int init;
	pthread_mutex_t mutex;
#else
	long	key;
#endif
} Lock;

typedef
struct Qid
{
	uvlong	path;
	ulong	vers;
	uchar	type;
} Qid;

typedef
struct Dir {
	/* system-modified data */
	ushort	type;	/* server type */
	uint	dev;	/* server subtype */
	/* file data */
	Qid	qid;	/* unique id from server */
	ulong	mode;	/* permissions */
	ulong	atime;	/* last read time */
	ulong	mtime;	/* last write time */
	vlong	length;	/* file length */
	char	*name;	/* last element of path */
	char	*uid;	/* owner name */
	char	*gid;	/* group name */
	char	*muid;	/* last modifier name */
} Dir;

typedef
struct Waitmsg
{
	int pid;	/* of loved one */
	ulong time[3];	/* of loved one & descendants */
	char	*msg;
} Waitmsg;

extern	void*	mallocz(ulong, int);
extern	void	setmalloctag(void*, ulong);

extern	uintptr	getcallerpc(void*);
extern	char*	cleanname(char*);
extern	void	sysfatal(char*, ...);
extern	char*	strecpy(char*, char*, char*);

extern	int	tokenize(char*, char**, int);
extern	int	getfields(char*, char**, int, int, char*);
extern	char*	utfecpy(char*, char*, char*);

extern	long	tas(long*);

typedef
struct QLock
{
	Lock	lk;
	struct Proc	*hold;
	struct Proc	*first;
	struct Proc	*last;
} QLock;

extern	void	qlock(QLock*);
extern	void	qunlock(QLock*);
extern	int	canqlock(QLock*);

extern	void	quotefmtinstall(void);

extern	int	dec64(uchar*, int, char*, int);
extern	int	enc64(char*, int, uchar*, int);
extern	int	dec32(uchar*, int, char*, int);
extern	int	enc32(char*, int, uchar*, int);
extern	int	enc16(char*, int, uchar*, int);
void		hnputs(void *p, unsigned short v);