/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #define _LOCK_EXTENSION#define _QLOCK_EXTENSION#define _BSD_EXTENSION#include <sys/types.h>#include <lock.h>#include <qlock.h>#include <lib9.h>#include <stdlib.h>#include <string.h>#include <bsd.h>#include <unistd.h>#include <fcntl.h>#include <assert.h>#include <utf.h>#include <fmt.h>#include <signal.h> typedefstruct Qid{	uvlong	path;	ulong	vers;	uchar	type;} Qid; typedefstruct 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: see <u.h> */	char	*name;	/* last element of path */	char	*uid;	/* owner name */	char	*gid;	/* group name */	char	*muid;	/* last modifier name */} Dir; uint	_convM2D(uchar*, uint, Dir*, char*);uint	_convD2M(Dir*, uchar*, uint);Dir	*_dirstat(char*);int	_dirwstat(char*, Dir*);Dir	*_dirfstat(int);int	_dirfwstat(int, Dir*);long	_dirread(int, Dir**);long _dirreadall(int, Dir**);void _nulldir(Dir*);uint _sizeD2M(Dir*); typedefstruct Waitmsg{	int pid;	/* of loved one */	unsigned long time[3];	/* of loved one & descendants */	char	*msg;} Waitmsg;  extern	int	_AWAIT(char*, int);extern	int	_ALARM(unsigned long);extern	int	_BIND(const char*, const char*, int);extern	int	_CHDIR(const char*);extern	int	_CLOSE(int);extern	int	_CREATE(char*, int, unsigned long);extern	int	_DUP(int, int);extern	int	_ERRSTR(char*, unsigned int);extern	int	_EXEC(char*, char*[]);extern	void	_EXITS(char *);extern	int	_FD2PATH(int, char*, int);extern	int	_FAUTH(int, char*);extern	int	_FSESSION(int, char*, int);extern	int	_FSTAT(int, unsigned char*, int);extern	int	_FWSTAT(int, unsigned char*, int);extern	int	_MOUNT(int, int, const char*, int, const char*);extern	int	_NOTED(int);extern	int	_NOTIFY(int(*)(void*, char*));extern	int	_OPEN(const char*, int);extern	int	_PIPE(int*);extern	long	_PREAD(int, void*, long, long long);extern	long	_PWRITE(int, void*, long, long long);extern	long	_READ(int, void*, long);extern	int	_REMOVE(const char*);extern	int	_RENDEZVOUS(unsigned long, unsigned long);extern	int	_RFORK(int);extern	int	_SEGATTACH(int, char*, void*, unsigned long);extern	int	_SEGBRK(void*, void*);extern	int	_SEGDETACH(void*);extern	int	_SEGFLUSH(void*, unsigned long);extern	int	_SEGFREE(void*, unsigned long);extern	long long	_SEEK(int, long long, int);extern	int	_SLEEP(long);extern	int	_STAT(const char*, unsigned char*, int);extern	Waitmsg*	_WAIT(void);extern	long	_WRITE(int, const void*, long);extern	int	_WSTAT(const char*, unsigned char*, int);extern 	void *_MALLOCZ(int, int);extern	int	_WERRSTR(char*, ...);extern	long	_READN(int, void*, long);extern	int	_IOUNIT(int); #define dirstat _dirstat#define dirfstat _dirfstat #define OREAD 0#define OWRITE 1#define ORDWR 2#define OCEXEC 32 #define AREAD 4#define AWRITE 2#define AEXEC 1#define AEXIST 0 #define open _OPEN#define close _CLOSE#define read _READ#define write _WRITE#define _exits(s) _exit(s && *(char*)s ? 1 : 0)#define exits(s) exit(s && *(char*)s ? 1 : 0)#define create _CREATE#define pread _PREAD#define readn _READN#define mallocz _MALLOCZ#define iounit	_IOUNIT /* assume being called as in event.c */#define postnote(x, pid, msg) kill(pid, SIGTERM)#define atnotify(x, y) signal(SIGTERM, ekill) #define ERRMAX 128 extern	void	setmalloctag(void*, ulong);extern	ulong	getcallerpc(void*);