fminfo.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.
 *
 *----------------------------------------------------------------------
 */

/*
 *	fminfo.h (file)
 *
 *	File management
 *	Common definition of the file manager task (Common section task)
 */

#ifndef _FM_FMINFO_H_
#define _FM_FMINFO_H_

#include "filemgr.h"
#include "filedes.h"


/*
 * Information of the file management common section
 */
typedef struct FmInfo {
	FastLock	lock;		/* For exclusive access  */

	ID		entryPort;	/* Command reception port  */
	ID		mgrTaskID[2];	/* Manager task (Common section task)
		Two tasks: One for reception and the other for forwarding */

	QUEUE		fsLink;		/* Link to FsInfo */

	FDTInfo		fdtInfo;	/* File descriptor management information */

	ID		syncExecFlag;	/* Synchronous execution control flag (Semaphore) */

	/* System configuration information */
	PRI		mgrTskPri;	/* Manager task priority */
	PRI		fsTskPri;	/* File system task priority */
	W		maxOpenFile;	/* The maximum number of files that can be opened at a time */
	TMO		syncTimeOut;	/* Synchronous timeout time (Millisecond) */
	UH		updTimeStamp;	/* Time stamp update control */
} FmInfo;

IMPORT FmInfo	fmInfo;

/*
 * Value of updTimeStamp
 *	0 : Normal (Default)
 *	1 : The time stamp is not updated.
 */
#define	UTS_RecordRead	0x0001U	/* When reading records */

#endif