prcutil2.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.
 *
 *----------------------------------------------------------------------
 */

/*
 *	prcutil2.c (proc)
 *
 *	Kernel utility
 *	Process management related
 */

#include <basic.h>
#include <tk/tkernel.h>
#include <sys/util.h>
#include <sys/pinfo.h>

/*
 * Obtain current task ID
 *	The result is undefined when called from outside the task.
 */
EXPORT ID GetMyTid( void )
{
	return tk_get_tid();
}

/*
 * Obtain current process ID
 */
EXPORT ID GetMyPid( void )
{
	PINFO	*pinfo = GetPinfo(TSK_SELF);
	return ( pinfo == NULL )? E_CTX: pinfo->procid;
}

/*
 * Obtain management information on current process
 */
EXPORT ER GetMyPinfo( PINFO **pinfo )
{
	*pinfo = GetPinfo(TSK_SELF);
	return ( *pinfo == NULL )? E_CTX: E_OK;
}