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886c1fae06
Many style/formatting edits. Bug fixes. Reverted some previous changes temporarily while reviewing new code. Merged Baker's "virtual device" in a simpler form. ODS2 will assign a sensible drive name when mounting /image (== /virtual). If a specific drive name is desired, mount /image drivename=filespec. Files can be quoted, or use set qualifier_style unix if slashes are a problem. Note that mount on the command line allows tab completion. Moved "statistics" command into show. Coded support for import/binary (fixed records, 512 bytes). Converted fgets to fgetline Added show devices for Unix (limited by standard APIs) Got rid of separate ODS2-Image build.
54 lines
1.9 KiB
C
54 lines
1.9 KiB
C
/* Device.h V2.1 Definitions for device routines */
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/*
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This is part of ODS2 written by Paul Nankervis,
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email address: Paulnank@au1.ibm.com
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ODS2 is distributed freely for all members of the
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VMS community to use. However all derived works
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must maintain comments in their source to acknowledge
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the contibution of the original author.
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*/
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#ifndef _DEVICE_H
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#define _DEVICE_H
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#ifdef _WIN32
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#include <windows.h> /* HANDLE */
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#endif
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#include "access.h"
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#include "cache.h"
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struct DEV { /* Device information */
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struct CACHE cache;
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struct VCB *vcb; /* Pointer to volume (if mounted) */
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int access; /* Device mount options (e.g., /Write) */
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unsigned sectors; /* Device physical sectors */
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#ifdef _WIN32
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short drive; /* Drive no. (0=A, 1=B, 2=C, ...) */
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unsigned bytespersector; /* Device physical sectorsize (bytes) */
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unsigned blockspersector; /* Device physical sectorsize (blocks) */
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union {
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struct { /* Device uses Win32 APIs for physical I/O */
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HANDLE handle; /* Win32 I/O handle */
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} Win32;
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struct { /* Device uses ASPI APIs for physical I/O */
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short dtype; /* ASPI disk type */
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short bus; /* ASPI device bus */
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short id; /* ASPI device id */
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} ASPI;
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} API;
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char *IoBuffer; /* Pointer to a buffer for the device */
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unsigned last_sector; /* Last sector no read (still in buffer) */
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#else
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int handle; /* Device physical I/O handle */
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#endif
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char devnam[1]; /* Device name */
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};
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unsigned device_lookup( unsigned devlen, char *devnam, int create,
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struct DEV **retdev );
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#endif /* # ifndef _DEVICE_H */
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