fileio.h

T-kernel 的extension源代码

/*
 *----------------------------------------------------------------------
 *    T-Kernel / Standard Extension
 *
 *    Copyright (C) 2006 by Ken Sakamura. All rights reserved.
 *    T-Kernel / Standard Extension is distributed 
 *      under the T-License for T-Kernel / Standard Extension.
 *----------------------------------------------------------------------
 *
 *    Version:   1.00.00
 *    Released by T-Engine Forum(http://www.t-engine.org) at 2006/8/11.
 *
 *----------------------------------------------------------------------
 */

/*
 *	fileio.h (file)
 *
 *	File management
 *	File I/O related
 */

#ifndef _FM_FILEIO_H_
#define _FM_FILEIO_H_

#include "fsinfo.h"
#include "filedes.h"
#include "cmdpkt.h"
#include "etc.h"

IMPORT ID_ERR	fmpGetOpenPara( OpenPara*, FID, FsInfo* );
IMPORT FD*	fmpOpenNewFile( FID, W omode, PINFO*, FsInfo*, ER* );
IMPORT ER	fmpWriteDataRecord( RCB*, OFCB*, W offset, B *buf, W size, UW units );
IMPORT ER	fmpTruncateDataRecord( RCB*, OFCB*, W newsize );
IMPORT ER	fmpDecrementFileReferenceCount( DfLinkIndex *lidx, FsInfo* );
IMPORT ER	fmpGetFileReferenceCount( FID, DfFileHeader*, FsInfo* );
IMPORT ER	fmpSetShortFileName( FID, TC *name, FsInfo* );
IMPORT void	fmpUnlockAllRecord( FD*, OFCB* );
IMPORT ER	fmpCheckLockAllRecord( OFCB* );
IMPORT ER	fmpBreakLockWait( FmCmdPkt *waitReq, FsInfo* );
IMPORT ER	fmpMakeLBlks( LBlks*, RCB*, W start, W size, OFCB* );
IMPORT ER	fmpUnmapAllRecord( FD*, OFCB* );

/*
 * Functions for internal use.
 *	Operation to the file not opened.
 */
IMPORT OFCB*	fmpIOpenFile( OpenPara*, W omode, PINFO*, FsInfo*, ER* );
IMPORT ER	fmpICloseFile( OFCB*, W omode );
IMPORT ER	fmpISearchLinkRecord( OFCB*, FID, IdxAdr *iadr, RCB** );
IMPORT ER	fmpISearchFile( OFCB*, FileName fname, W n, LINK *lnk );
IMPORT ER	fmpIAppendLinkRecord( OFCB*, LINK *lnk );
IMPORT ER	fmpIDeleteLinkRecord( OFCB*, IdxAdr *iadr, RCB* );
IMPORT ER	fmpITruncateDataRecord( RIdx *ri, W newsize );

/*
 * Functions corresponding to the file input/output system calls
 */
IMPORT UW	fmpCreateFile( FmCmdPkt*, OpenPara*, FsInfo* );
IMPORT UW	fmpCreateLinkFile( FmCmdPkt*, OpenPara*, FsInfo* );
IMPORT UW	fmpGenerateFile( FmCmdPkt*, OpenPara*, FsInfo* );
IMPORT UW	fmpDeleteFile( FmCmdPkt*, OpenPara*, FsInfo* );
IMPORT UW	fmpOpenFile( FmCmdPkt*, OpenPara*, FsInfo* );
IMPORT void	fmpCloseFile( FmCmdPkt* );
IMPORT void	fmpSeekRecord( FmCmdPkt* );
IMPORT void	fmpFindRecord( FmCmdPkt* );
IMPORT void	fmpFindLinkRecord( FmCmdPkt* );
IMPORT void	fmpReadRecord( FmCmdPkt* );
IMPORT void	fmpWriteRecord( FmCmdPkt* );
IMPORT void	fmpInsertRecord( FmCmdPkt* );
IMPORT void	fmpAppendRecord( FmCmdPkt* );
IMPORT void	fmpDeleteRecord( FmCmdPkt* );
IMPORT void	fmpTruncateRecord( FmCmdPkt* );
IMPORT void	fmpExchangeFileContent( FmCmdPkt* );
IMPORT FwdID	fmpLockRecord( FmCmdPkt* );
IMPORT void	fmpMapRecord( FmCmdPkt* );
IMPORT void	fmpUnmapRecord( FmCmdPkt* );
IMPORT void	fmpSyncFileData( FmCmdPkt* );

/*
 * Functions corresponding to the service calls used in OS.
 */
IMPORT void	fmpGetRecordInfo( FmCmdPkt* );

#endif