/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
/*                                                                        */
/* bos72V src/bos/kernel/sys/pri.h 1.15.1.3                               */
/*                                                                        */
/* Licensed Materials - Property of IBM                                   */
/*                                                                        */
/* COPYRIGHT International Business Machines Corp. 1988,2020              */
/* All Rights Reserved                                                    */
/*                                                                        */
/* US Government Users Restricted Rights - Use, duplication or            */
/* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.      */
/*                                                                        */
/* IBM_PROLOG_END_TAG                                                     */
/* @(#)77	1.15.1.3  src/bos/kernel/sys/pri.h, sysproc, bos72V, v2020_18B3 4/23/20 10:36:03 */
/*
 *   COMPONENT_NAME: SYSPROC
 *
 *   FUNCTIONS: SLPDEF
 *		sleep
 *		
 *
 *   ORIGINS: 3,27
 *
 *
 *   (C) COPYRIGHT International Business Machines Corp. 1988,1993
 *   All Rights Reserved
 *   Licensed Materials - Property of IBM
 *   US Government Users Restricted Rights - Use, duplication or
 *   disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */


#ifndef _H_PRI
#define _H_PRI

/*
 * NOTES:
 *      1. processes that are not subject to scheduling should run with a 
 *         a fixed priority, and their priority should be more favored
 *         than the scheduling process's priority (i.e. PRI_SCHED).
 */
#include        <sys/proc.h>

#ifdef __cplusplus
extern "C" {
#endif

#define PMASK   255
#define PCATCH  0x100            /* must not be equal to SWAKEONSIG. Both
				    PCATCH and SWAKEONSIG must be greater 
				    than PMASK */

#ifdef _KERNEL
/* upwardly compatible sleep macro: */
#define SLPDEF(C,D) (sleepx((C),(D)&PMASK,(D)&PCATCH|(((D)&PMASK)>PZERO?SWAKEONSIG:0)))
#define sleep(C, D)     SLPDEF(C, D)
#endif /* _KERNEL */

/*
 * sleep / sleepx priorities
 * fixed process priorities
 * should not be altered too much
 * changing a priority's relationship (< = >) to
 * PSWP, PINOD, PRIBIO, PZERO, PUSER, or PIDLE is "risky".
 */

#define PSWP            0       /* "swapping" */
#define PRI_SCHED       16      /* priority for the scheduling process.
                                   NOTE: all processes that are subject to 
                                   scheduled must run with a priority less
                                   favored than this                        */
#define PINOD           18      /* inode locks */
#define PZERO           25      /* if >PZERO signals interrupt the sleep */
				/* above comment no longer true! see
				   SWAKEONSIG and sleepx() for details   */
#define PPIPE           26
#define PMSG            27      /* ipc messages */
#define TTIPRI          30      /* tty input */
#define TTOPRI          31      /* tty output */
#define PWAIT           33
#define PUSER           40
#define PRI_LOW         (PIDLE-1) /* least favored priority for a non
                                   realtime process  */
#define PIDLE           PMASK   /* wait process's priority */

/* Real Time Process Priority assignments for use with the setpri()
   system call
 */

#define MBUF_RTPRI	36	/* MBUF buffer pool expansion process */
#define NETPCL_RTPRI	37	/* Network  Protocol Process */
#define HFTSC_RTPRI	38	/* High function terminal screen manager */
#define NETTMR_RTPRI	39	/* Network Timer Processes */

/*
 * Real Time Lock Priority boosting choices
 */
#define PRIO_NO_BOOST	 0	/* No boosting needed; PRIO_PROTECT for eg */
#define PRIO_TEMP_BOOST	 1	/* Temp boosting for 1 timeslice; PRIO_DEFAULT*/
#define PRIO_PERM_BOOST	 2	/* Perm boosting; PRIO_INHERIT, for eg. */

#if defined(__64BIT_KERNEL) || defined(__FULL_PROTO)
extern int getpri(pid_t pid);
extern int setpri(pid_t pid,int new_pri);
#endif /* (__64BIT_KERNEL || __FULL_PROTO) */

extern int flexctl(id_t target, int boost_level, int flags);

/* flags for flexctl syscall / kernel service */
#define BOOST_LATENCY		0x0001
#define BOOST_THROUGHPUT	0x0002
#define TARGET_PROCESS		0x0004
#define TARGET_THREAD		0x0008

#define TARGET_IO		0x0010

/* Boost Levels for flexctl syscall / kernel service */
#define BL_NORMAL		5
#define BL_HIGH			7

#ifdef __cplusplus
}
#endif

#endif /* _H_PRI */