fsconnect.c

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

/*
 *	fsconnect.c (seio)
 *
 *	Standard input/output
 *	File system extension setting
 */

#include "sfmgr.h"
#include "fsinfo.h"

typedef ER (*ATTACH_FP)(FS *);
IMPORT FS_ENT fs_def_tbl[];

/*
 * Connect a file system that corresponds to mode
 */
EXPORT ER
call_attach(INT mode, FS *fs)
{
	FS_ENT		*entp;
	ATTACH_FP	attach;

	for (entp = fs_def_tbl; entp->attach != NULL; ++entp) {
		if (entp->mode == (mode & SF_TYPE_MASK)) {
			attach = (ATTACH_FP)entp->attach;
			return attach(fs);
		}
	}

	return E_PAR;
}

/*
 * Return the size of file system connection information
 */
EXPORT ER
get_fssize(INT mode)
{
	FS_ENT	*entp;

	for (entp = fs_def_tbl; entp->attach != NULL; ++entp) {
		if (entp->mode == (mode & SF_TYPE_MASK)) { 
			return entp->fssize;
		}
	}

	return E_PAR;
}