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1 line
13 KiB
Plaintext
1 line
13 KiB
Plaintext
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/*
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* Copyright (c) Kopriha Software, 1990-1991
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* All Rights Reserved
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*
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* ks.fileio.e
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*
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* Description: This include file contains all the generic file
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* support macros from Kopriha Software.
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*
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*
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* Table of contents:
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*
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* Structures:
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*
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* KS_FILE . . . . . . . . . Structure to abstract a file
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*
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* Macros:
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*
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* + KS_FILE_CLOSE() . . . . . . . Close a file
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* + KS_FILE_CHANGE_AUXTYPE() . . . Change the aux type of a file
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* + KS_FILE_CREATE() . . . . . . . Create a file (w ftype,auxtype)
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* + KS_FILE_DELETE() . . . . . . . Delete a file
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* + KS_FILE_GET_BUFFER_SIZE(). . . Get the input/output buffer size
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* + KS_FILE_GET_DIRECTORY() . . . Get the current directory
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* + KS_FILE_GET_NEXT_FILE() . . . Get next filename from a directory
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* + KS_FILE_GET_VOLUME() . . . . . Get volume name from pathname
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* + KS_FILE_GET_VOLUME_SPACE() . . Get the total/available space on
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* the specified volume
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* + KS_FILE_OPEN() . . . . . . . . Open a file
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* + KS_FILE_PATH_ADD_FILE() . . . Append a filename to a path/dir
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* + KS_FILE_READ() . . . . . . . . Read from a file
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* KS_FILE_RENAME() . . . . . . . Rename a file (given pathnames)
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* + KS_FILE_SET_BUFFER_SIZE(). . . Set the input/output buffer size
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* * KS_FILE_SET_DIRECTORY() . . . Set the current directory
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* + KS_FILE_WRITE() . . . . . . . Write to a file
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*
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* + indicates that the routine was debugged
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* * indicates the routine exists but was not debugged
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*
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*
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* Notes:
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*
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* History:Oct 13, 1990 Dave Created this file for basic
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* I/O (read/write)
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*
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* Feb 25, 1991 Dave Added buffer enhancements/create.
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*
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* Mar 5, 1991 Dave Added directory, file, path and
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* volume calls
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*
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* Mar 24, 1991 Dave Added delete and change aux type
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*
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* Jun 07, 1991 Dave Broke the ks.fileio.cc module into
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* lots of pieces so we could easily
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* build a library.
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*
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* Jun 30, 1991 Dave Added a rename function.
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*
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*/
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#ifndef _KS_FILEIO_E_
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#define _KS_FILEIO_E_
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#ifndef _KS_DEFINES_
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#include "ks.defines.h"
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#endif
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#ifndef _GSOS_
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#include <gsos.h>
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#endif
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/*
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* Buffer flag constants - used to determine if a buffer should
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* be used for I/O. The idea here is that if you specify a buffer,
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* then you have to read/write without specifying a byte position
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* (KS_NEXT_FILE_POSITION).
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*/
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#define KS_FILE_NO_BUFFER ((Word) 0)
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#define KS_FILE_BUFFER_IO ((Word) 1)
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#define KS_NEXT_FILE_POSITION ((Word) -1)
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/*
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* The following are definitions that I expected to find in the
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* APW 1.1/Orca/C update, but could not. I want to be able to
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* recompile without worrying about hard-coding constants in my
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* program, I defined the following macros:
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*/
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#define KS_FILE_DATA_FORK ((Word) 0) /* For GS/OS Open */
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#define KS_FILE_RESOURCE_FORK ((Word) 1)
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#define KS_FILE_READ_ACCESS ((Word) readEnable)
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#define KS_FILE_WRITE_ACCESS ((Word) writeEnable)
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#define KS_BLOCK_DEVICE ((Word) 0x0080) /* used with DInfo */
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/*
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* KS_FILE - generic file structure
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*/
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typedef struct
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{
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KS_STRUCT_ID struct_id;/* Structure id */
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Handle file_handle; /* Handle that created this structure */
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Word refNum; /* Reference # (or channel #) of the file */
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Word access; /* Access mode of file (read or write) */
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LongWord eof; /* End of File of data fork */
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LongWord resource_eof; /* End of file for resource fork */
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/* Note: Not all systems support filetypes*/
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Word fileType; /* Value of file's fileType attribute */
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LongWord auxType; /* Auxilary file type */
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LongWord data_size; /* Amount of data read/written for user */
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Word end_of_file; /* TRUE==We've read to end of file */
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Word end_of_dir; /* TRUE==We've read to end of directory */
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Handle buffer_handle;
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/* Handle to the buffer (if specified) */
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LongWord buffer_size; /* Size of the buffer (NULL if not */
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/* specified) */
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LongWord buffer_available;
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/* Number of bytes read into the buffer */
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/* Typically this offset is the same as */
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/* buffer_size, however end of file is a */
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/* special case where the number of */
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/* read bytes typically can't be the same*/
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/* the size of the buffer. */
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Byte *buffer; /* Pointer to the file buffer */
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LongWord buffer_offset;
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/* Offset of next available byte in buffer*/
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} KS_FILE, *KS_FILE_PTR, **KS_FILE_HDL;
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/*
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* KS_FILE_CLOSE() - close a file.
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*/
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#define KS_FILE_CLOSE(_file_ptr, _error) \
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\
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(_error) = ks_file_close( (_file_ptr))
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/*
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* KS_FILE_CREATE() - creates a file with the specified name, filetype
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* and auxtype.
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*/
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#define KS_FILE_CREATE(_gspath_ptr, _file_type, _auxtype, _error) \
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\
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(_error) = ks_file_create( (_gspath_ptr), \
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(_file_type), \
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(_auxtype))
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/*
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* KS_FILE_CHANGE_AUXTYPE() - change the auxtype of an existing file.
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*
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* Note: This call is only works when the file is closed!
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*/
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#define KS_FILE_CHANGE_AUXTYPE(_gspath_ptr, _auxtype, _error) \
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\
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(_error) = ks_file_change_auxtype( (_gspath_ptr), \
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(_auxtype))
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/*
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* KS_FILE_DELETE() - Deletes the specified file
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*/
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#define KS_FILE_DELETE(_gspath_ptr, _error) \
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\
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(_error) = ks_file_delete( (_gspath_ptr))
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/*
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* KS_FILE_GET_BUFFER_SIZE() - returns the current buffer size used
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*
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* Note: If the buffer size can only be changed if there are no
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* open files (this restriction will change in the future).
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*/
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#define KS_FILE_GET_BUFFER_SIZE(_buffer_size, _error) \
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\
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(_error) = ks_file_get_buffer_size( (_buffer_size))
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/*
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* KS_FILE_GET_NEXT_FILE(FILE_PTR, DirEntryRecPtrGS) - Get next
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* filename from a directory
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*/
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#define KS_FILE_GET_NEXT_FILE(_file_ptr, _next_file_ptr, _error) \
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\
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(_error) = ks_file_get_next_file( (_file_ptr), \
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(_next_file_ptr))
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/*
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* KS_FILE_GET_VOLUME() - Get volume name from pathname
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*/
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#define KS_FILE_GET_VOLUME(_file_ptr, _volume_ptr, _error) \
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\
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(_error) = ks_file_get_volume( (_file_ptr), \
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(_volume_ptr))
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/*
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* KS_FILE_GET_VOLUME_SPACE() - Get the total/available space on
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* the specified volume
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*/
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#define KS_FILE_GET_VOLUME_SPACE(_volume_ptr, _unused, _total, _error) \
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\
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(_error) = ks_file_get_volume_space( (_volume_ptr), \
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(_unused), \
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(_total))
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/*
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* KS_FILE_OPEN() - opens a file (either data or resource fork)
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* returns a KS_FILE structure to our caller.
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*/
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#define KS_FILE_OPEN(_gspath_ptr, _access, _file_fork, _buf_flag, _file_ptr_ptr, _error)\
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\
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(_error) = ks_file_open( (_gspath_ptr), \
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(_access), \
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(_file_fork), \
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(_buf_flag), \
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(_file_ptr_ptr))
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/*
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* KS_FILE_PATH_ADD_FILE() - Append a filename to a path/dir
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*/
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#define KS_FILE_PATH_ADD_FILE(_path_ptr, _file_ptr, _error) \
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\
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(_error) = ks_file_path_add_file( (_path_ptr), \
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(_file_ptr))
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/*
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* KS_FILE_READ() - read from a file.
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*/
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#define KS_FILE_READ(_file_ptr, _position, _byte_size, _buffer, _error)\
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\
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(_error) = ks_file_read( (_file_ptr), \
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(_position), \
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(_byte_size), \
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(_buffer))
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/*
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* KS_FILE_RENAME() - rename a file.
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*/
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#define KS_FILE_RENAME(_old_pathname, _new_pathname, _error) \
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\
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(_error) = ks_file_rename( (_old_pathname), \
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(_new_pathname))
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/*
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* KS_FILE_SET_BUFFER_SIZE() - sets the current buffer size used
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*
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* Note: If the buffer size can only be changed if there are no
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* open files (this restriction will change in the future).
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*/
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#define KS_FILE_SET_BUFFER_SIZE(_buffer_size, _error) \
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\
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(_error) = ks_file_set_buffer_size( (_buffer_size))
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/*
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* KS_FILE_SET_DIRECTORY() - Set the current directory
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*/
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#define KS_FILE_SET_DIRECTORY(_directory_ptr, _error) \
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\
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(_error) = ks_file_set_directory( (_directory_ptr))
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/*
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* KS_FILE_SET_EOF() - set the end of the specified file
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*/
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#define KS_FILE_SET_EOF(_file_ptr, _eof, _error) \
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\
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(_error) = ks_file_set_eof( (_file_ptr), \
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(_eof))
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/*
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* KS_FILE_WRITE() - write to a file.
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*/
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#define KS_FILE_WRITE(_file_ptr, _position, _byte_size, _buffer, _error)\
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\
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(_error) = ks_file_write( (_file_ptr), \
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(_position), \
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(_byte_size), \
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(_buffer))
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/* ****************************************************************** *
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* File I/O routine prototypes: *
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* ****************************************************************** */
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KS_E_ERROR ks_file_close(KS_FILE_PTR);
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KS_E_ERROR ks_file_create(GSString255Ptr,
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Word,
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LongWord);
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KS_E_ERROR ks_file_change_auxtype(GSString255Ptr,
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LongWord);
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KS_E_ERROR ks_file_get_buffer_size(LongWord *);
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KS_E_ERROR ks_file_delete(GSString255Ptr);
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KS_E_ERROR ks_file_get_next_file(KS_FILE_PTR,
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DirEntryRecPtrGS);
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KS_E_ERROR ks_file_get_volume(GSString255Ptr,
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GSString255Ptr);
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KS_E_ERROR ks_file_get_volume_space(GSString255Ptr,
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LongWord *,
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LongWord *);
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KS_E_ERROR ks_file_open(GSString255Ptr,
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Word,
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Word,
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Word,
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KS_FILE_PTR *);
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KS_E_ERROR ks_file_read(KS_FILE_PTR,
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LongWord,
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LongWord,
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Pointer);
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KS_E_ERROR ks_file_rename(GSString255Ptr,
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GSString255Ptr);
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KS_E_ERROR ks_file_path_add_file(GSString255Ptr,
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GSString255Ptr);
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KS_E_ERROR ks_file_set_buffer_size(LongWord);
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KS_E_ERROR ks_file_set_directory(GSString255Ptr);
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KS_E_ERROR ks_file_set_eof(KS_FILE_PTR,
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LongWord);
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KS_E_ERROR ks_file_write(KS_FILE_PTR,
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LongWord,
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LongWord,
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Pointer);
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#endif
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