1 files changed, 149 insertions, 0 deletions
diff --git a/lib/fio.h b/lib/fio.h
new file mode 100644
index 00000000..024cf1d4
--- /dev/null
+++ b/lib/fio.h
@@ -0,0 +1,149 @@
+# FIO.H -- FIO definitions.
+
+# Logical seek: adjust i/o pointer to the seek offset.  If the buffer was
+# being written into when the seek occurs, adjust ITOP and OTOP to mark
+# the end of the good data in the buffer, then set IOP to new offset.
+
+define	(UPDATE_IOP,	if (bufptr[$1] != NULL && otop[$1] == buftop[$1]) {
+			    itop[$1] = min(buftop[$1], max(itop[$1], iop[$1]))
+			    otop[$1] = itop[$1]
+			})
+define	(LSEEK,		{UPDATE_IOP($1);iop[$1]=($2-boffset[$1]+bufptr[$1])})
+define	LNOTE		(boffset[$1]+iop[$1]-bufptr[$1])
+define	BUF_MODIFIED	(otop[$1] > bufptr[$1])
+
+define	INACTIVE		0
+define	READ_IN_PROGRESS	1
+define	WRITE_IN_PROGRESS	2
+
+
+# File descriptor structure (dynamically allocated part)
+
+define	SZ_FFNAME	255
+define	LEN_FIODES	(20+LEN_CHANDES+256)
+
+define	FCHAN		Memi[$1]		# os channnel
+define	FMODE		Memi[$1+1]		# mode of access
+define	FTYPE		Memi[$1+2]		# binary or text
+define	FDEV		Memi[$1+3]		# device index
+define	FBUFSIZE	Memi[$1+4]		# buffer size
+define	FIRSTBUFOFF	Memi[$1+5]		# offset of first file buffer
+define	FNBUFS		Memi[$1+6]		# number of buffers
+define	FLOCBUF		Memi[$1+7]		# zlocva of aread buffer
+define	FPBBUFSIZE	Memi[$1+8]		# size pushback buffer
+define	FPBBUF		Memi[$1+9]		# ptr to pushback buffer
+define	FPBTOP		Memi[$1+10]		# ptr to top of pbbuf
+define	FPBIOP		Memi[$1+11]		# iop into pbbuf
+define	FPBSP		Memi[$1+12]		# pbbuf stack pointer 
+define	FILSTAT		Memi[$1+13]		# channel status
+define	FNCHARS		Memi[$1+14]		# nchars last i/o
+define	FNBYTES		Memi[$1+15]		# nbytes last rec read
+define	FBUFMODE	Memi[$1+16]		# i/o mode for buffer
+define	FFIOMODE	Memi[$1+17]		# i/o mode for file
+define	FCD		Memi[$1+18]		# ptr to chan descr.
+			# (open)
+define	FLCD		($1+20)				# local storage for cd
+define	FNAME		Memc[P2C($1+20+LEN_CHANDES)]	# filename
+
+# Channel descriptor (stored in fd if file not multiply open).  The DEVPAR
+# (device parameter) fields are reserved for use with special devices and
+# are not used by FIO.
+
+define	LEN_CHANDES	(10+256)
+define	FREFCNT		Memi[FCD($1)]		# chan reference count
+define	FCIOMODE	Memi[FCD($1)+1]		# chan i/o mode
+define	FCLOSEFD	Memi[FCD($1)+2]		# close chan when inactive
+define	FAFD		Memi[FCD($1)+3]		# active fd
+define	FBLKSIZE	Memi[FCD($1)+4]		# device block size
+define	FOPTBUFSIZE	Memi[FCD($1)+5]		# "optimum" buffer size
+define	FMAXBUFSIZE	Memi[FCD($1)+6]		# maximum buffer size
+define	FDEVOPEN	Memi[FCD($1)+7]		# device zopen proc
+define	FILSZ_PTR	FCD($1)+8
+define	FILSIZE		Meml[FILSZ_PTR($1)]	# file size, chars
+define	FPKOSFN		Memc[P2C(FCD($1)+10)]	# packed osfn of file
+
+
+# Flags
+
+define	FF_FLUSHNL	1B		# flush each line to output device
+define	FF_READ		2B		# read perm on file
+define	FF_WRITE	4B		# write perm on file
+define	FF_EOF		10B		# at EOF
+define	FF_ERR		20B		# i/o error
+define	FF_KEEP		40B		# keep file open after task quits?
+define	FF_FLUSH	100B		# write each line to z buffer
+define	FF_RAW		200B		# raw i/o when reading a text device
+define	FF_NDELAY	400B		# nonblocking i/o
+define	FF_PUSHBACK	1000B		# data is pushed back into input
+
+
+# Device table entry points
+
+define	LEN_DTE		7		# length of device table entry
+define	TX_DRIVER	1		# index into devtbl of textfile driver
+define	BF_DRIVER	8		# index of binary file driver
+define	TY_DRIVER	15		# index of terminal driver
+define	PR_DRIVER	22		# index of IPC driver
+define	SF_DRIVER	29		# index of static file driver
+define	STD_DRIVER	($1 <= 29)	# is device code that of a std driver?
+
+define	ZGETTX		zdev[FDEV($1)]		# text files
+define	ZPUTTX		zdev[FDEV($1)+1]
+define	ZFLSTX		zdev[FDEV($1)+2]
+define	ZSTTTX		zdev[FDEV($1)+3]
+define	ZCLSTX		zdev[FDEV($1)+4]
+define	ZSEKTX		zdev[FDEV($1)+5]
+define	ZNOTTX		zdev[FDEV($1)+6]
+
+define	ZARDBF		zdev[FDEV($1)]		# binary files
+define	ZAWRBF		zdev[FDEV($1)+1]
+define	ZAWTBF		zdev[FDEV($1)+2]
+define	ZSTTBF		zdev[FDEV($1)+3]
+define	ZCLSBF		zdev[FDEV($1)+4]
+
+
+# File status codes (ZFSTTX, ZFSTTB).  FIO makes a distinction between the
+# device block size, which establishes the alignment restrictions for
+# asynchronous reads and writes, and the "optimal" buffer size, the default
+# buffer size supplied by the device z-routines, which defines the minimum
+# buffer size for efficient sequential access to the device.
+
+define	FSTT_BLKSIZE	1		# block size, bytes
+define	FSTT_FILSIZE	2		# file size, bytes
+define	FSTT_OPTBUFSIZE	3		# optimum buffer size, bytes
+define	FSTT_MAXBUFSIZE	4		# optimum buffer size, bytes
+
+define	REMOVE_PROTECTION	0	# for ZFPROT
+define	SET_PROTECTION		1
+define	QUERY_PROTECTION	2
+
+define	STRING_FILE	(-1)		# open a string as a file
+define	SZ_SPOOLBUF	4096		# def. initial size of a spool buffer
+
+
+# Filename Mapping definitions.
+
+define	SZ_VFNFN	127		# max size ROOT or EXTN in VFN
+define	SZ_OSDIR	255		# max chars in V_OSDIR field
+
+define	VFN_READ	1		# VFN access modes for VFNOPEN
+define	VFN_WRITE	2
+define	VFN_UNMAP	3
+
+define	VFN_NOUPDATE	0		# update flag for VFNCLOSE
+define	VFN_UPDATE	1
+
+
+# Terminal driver escape sequences.
+
+define	LEN_RAWCMD	5		# +1 for iomode character (N|B)
+define	RAWOFF		"\033-rAw"	# raw mode off
+define	RAWON		"\033+rAw"	# raw mode on
+
+define	LEN_SETREDRAW	6		# 5 char escape sequence + code
+define	SETREDRAW	"\033=rDw"	# set/enable screen redraw code
+
+
+# Magtape driver global definitions.
+
+define	LEN_MTDEVPOS	5