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

/*
 *	ertoerr.c (proc)
 *
 *	Convert from T-Kernel error codes to extension error codes
 */

#include <sys/util.h>
#include <tk/errno.h>
#include <extension/errno.h>


#define TSD_ETE_SFT_16		16
#define TSD_ETE_MSK_0XFFFF	0xffffU
#define TSD_ETE_CAS_0XFFFF	0xffffU

EXPORT W ERtoERR( ER er )
{
	if ( er >= E_OK ) {
		return er;
	}

	switch ( (ER)((UW)er & ~TSD_ETE_MSK_0XFFFF) ) {
	  case (ER)~TSD_ETE_CAS_0XFFFF:
		return (W)((UW)er << TSD_ETE_SFT_16);/* Set lower 16 bits as error class */
	  case E_NOCOP:
		return E_NOSPT;	/* Coprocessor cannot be used. */
	  case E_RSATR:
		return E_PAR;	/* Reserved attribute */
	  case E_OACV:
		return E_ID;	/* Object access right violation */
	  case E_ILUSE:
		return E_OBJ;	/*Invalid use of system call */
	  case E_QOVR:
		return E_LIMIT;	/* Queuing overflow */
	  case E_RLWAI:
		return E_SYS;	/* Forced reset of wait state */
	  case E_ABORT:
		return E_SYS;	/* Suspended */
	  case E_SYS:
		return E_SYS;	/* System error */
	  case E_NOSPT:
		return E_NOSPT;	/* Unsupported function */
	  case E_RSFN:
		return E_RSFN;	/* Reserved function code number */
	  case E_PAR:
		return E_PAR;	/* Parameter error */
	  case E_ID:
		return E_ID;	/* Invalid ID number */
	  case E_CTX:
		return E_CTX;	/* Context error */
	  case E_MACV:
		return E_MACV;	/* Memory access impossible/violation */
	  case E_NOMEM:
		return E_NOMEM;	/* Insufficient memory */
	  case E_LIMIT:
		return E_LIMIT;	/* Exceeded system limitation */
	  case E_OBJ:
		return E_OBJ;	/* Object state is invalid. */
	  case E_NOEXS:
		return E_NOEXS;	/* Object does not exist. */
	  case E_TMOUT:
		return E_TMOUT;	/* Failure or timeout of polling */
	  case E_DLT:
		return E_DLT;	/* Wait object has been deleted. */
	  case E_DISWAI:
		return E_DISWAI;	/* Disable wait to reset wait state. */
	  case E_IO:
		return E_IO;	/* Input/output error */
	  case E_NOMDA:
		return E_NOMDA;	/* No media */
	  case E_BUSY:
		return E_BUSY;	/* Busy state */
	  case E_RONLY:
		return E_RONLY;	/* Write-protected */
	  default:
		/* nothing to do */
		break;
	}

	return E_SYS;
}