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rexxio.i
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1988-07-31
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* === rexx/rexxio.i ====================================================
*
* Copyright (c) 1986, 1987 by William S. Hawes (All Rights Reserved)
*
* ======================================================================
* Include file for Input/Output related structures
IFND REXX_REXXIO_I
REXX_REXXIO_I SET 1
IFND REXX_STORAGE_I
INCLUDE "rexx/storage.i"
ENDC
RXBUFFSZ EQU 204 ; buffer length
* The IoBuff is a resource node used to maintain the File List. Nodes are
* allocated and linked into the list whenever a file is opened.
STRUCTURE IoBuff,rr_SIZEOF ; structure for files/strings
APTR iobRpt ; read/write pointer
LONG iobRct ; character count
LONG iobDFH ; DOS filehandle
APTR iobLock ; DOS lock
LONG iobBct ; buffer length
STRUCT iobArea,RXBUFFSZ ; buffer area
LABEL iobSIZEOF ; size: 256 bytes
IOBNAME EQU LN_NAME ; logical name
IOBMODE EQU rr_Arg1 ; access mode
IOBEOF EQU rr_Arg1+1 ; EOF flag
IOBPOS EQU rr_Arg2 ; current position
* Access mode definitions
RXIO_EXIST EQU -1 ; an existing filehandle
RXIO_STRF EQU 0 ; a "string file"
RXIO_READ EQU 1 ; read-only access
RXIO_WRITE EQU 2 ; write mode
RXIO_APPEND EQU 3 ; append mode (existing file)
* Offset anchors for SeekF()
RXIO_BEGIN EQU -1 ; relative to start
RXIO_CURR EQU 0 ; relative to current position
RXIO_END EQU 1 ; relative to end
* The Library List contains just plain resource nodes.
LLOFFSET EQU rr_Arg1 ; "Query" offset
LLVERS EQU rr_Arg2 ; library version
* The RexxClipNode structure is used to maintain the Clip List. The
* value string is stored as an argstring in the rr_Arg1 field.
CLVALUE EQU rr_Arg1 ; value string
* A message port structure, maintained as a resource node.
* The ReplyList holds packets that have been received but haven't been
* replied.
STRUCTURE RexxMsgPort,rr_SIZEOF
STRUCT rmp_Port,MP_SIZE ; the message port
STRUCT rmp_ReplyList,LH_SIZE ; messages awaiting reply
LABEL rmp_SIZEOF
* Device types
DT_DEV EQU 0 ; a device
DT_DIR EQU 1 ; an ASSIGNed directory
DT_VOL EQU 2 ; a volume
* Private packet types
ACTION_STACK EQU 2002 ; stack a line
ACTION_QUEUE EQU 2003 ; queue a line
ENDC