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Ignore whitespace Rev 37 → Rev 38

/shark/trunk/kernel/modules/dummy.c
20,11 → 20,11
 
/**
------------
CVS : $Id: dummy.c,v 1.3 2002-11-11 08:32:06 pj Exp $
CVS : $Id: dummy.c,v 1.4 2003-01-07 17:07:50 pj Exp $
 
File: $File$
Revision: $Revision: 1.3 $
Last update: $Date: 2002-11-11 08:32:06 $
Revision: $Revision: 1.4 $
Last update: $Date: 2003-01-07 17:07:50 $
------------
 
This file contains the Dummy scheduling module
58,7 → 58,6
#include <ll/string.h>
#include <kernel/config.h>
#include <sys/types.h>
#include <modules/codes.h>
#include <kernel/model.h>
#include <kernel/descr.h>
#include <kernel/var.h>
74,42 → 73,21
} dummy_level_des;
 
 
static int dummy_level_accept_task_model(LEVEL l, TASK_MODEL *m)
static PID dummy_public_scheduler(LEVEL l)
{
dummy_level_des *lev = (dummy_level_des *)(level_table[l]);
 
if ((m->pclass == DUMMY_PCLASS || m->pclass == (DUMMY_PCLASS | l))
&& lev->dummy == -1)
return 0;
else
return -1;
//kern_printf("DUMMYsched!!! %d", lev->dummy);
return lev->dummy;
}
 
static int dummy_level_accept_guest_model(LEVEL l, TASK_MODEL *m)
static int dummy_public_create(LEVEL l, PID p, TASK_MODEL *m)
{
return -1;
}
 
static void dummy_level_status(LEVEL l)
{
dummy_level_des *lev = (dummy_level_des *)(level_table[l]);
 
kern_printf("dummy PID: %d\n", lev->dummy);
};
if (m->pclass != DUMMY_PCLASS) return -1;
if (m->level != 0 && m->level != l) return -1;
if (lev->dummy != -1) return -1;
 
 
static PID dummy_level_scheduler(LEVEL l)
{
dummy_level_des *lev = (dummy_level_des *)(level_table[l]);
//kern_printf("DUMMYsched!!! %d", lev->dummy);
return lev->dummy;
}
 
/* There is not guarantee on this level!!! -> the entry must be null
int (*level_guarantee)(LEVEL l, DWORD *freebandwidth); */
 
static int dummy_task_create(LEVEL l, PID p, TASK_MODEL *m)
{
/* the dummy level doesn't introduce any new field in the TASK_MODEL
so, all initialization stuffs are done by the task_create.
the task state is set at SLEEP by the general task_create */
116,92 → 94,16
return 0; /* OK */
}
 
static void dummy_task_detach(LEVEL l, PID p)
static void dummy_public_dispatch(LEVEL l, PID p, int nostop)
{
/* the dummy level doesn't introduce any new field in the TASK_MODEL
so, all detach stuffs are done by the task_create
The task state is set at FREE by the general task_create */
}
 
static int dummy_task_eligible(LEVEL l, PID p)
{
return 0; /* if the task p is chosen, it is always eligible */
}
 
extern int testactive;
extern struct timespec s_stime[];
extern TIME s_curr[];
extern TIME s_PID[];
extern int useds;
static void dummy_task_dispatch(LEVEL l, PID p, int nostop)
{
/* nothing... the dummy hangs the cpu waiting for interrupts... */
if (0)//testactive)
{
s_stime[useds]= schedule_time;
s_curr[useds] = -1;
s_PID[useds] = p;
useds++;
}
 
//kern_printf("ÛDUMMYÛ");
 
}
 
static void dummy_task_epilogue(LEVEL l, PID p)
static void dummy_public_epilogue(LEVEL l, PID p)
{
proc_table[p].status = SLEEP; /* Paranoia */
}
 
static void dummy_task_activate(LEVEL l, PID p)
{ kern_printf("Dummy1"); kern_raise(XINVALID_DUMMY_OP,exec_shadow); }
 
static void dummy_task_insert(LEVEL l, PID p)
{ kern_printf("Dummy2"); kern_raise(XINVALID_DUMMY_OP,exec_shadow); }
 
static void dummy_task_extract(LEVEL l, PID p)
{ kern_printf("Dummy3"); kern_raise(XINVALID_DUMMY_OP,exec_shadow); }
 
static void dummy_task_endcycle(LEVEL l, PID p)
{ kern_printf("Dummy4"); kern_raise(XINVALID_DUMMY_OP,exec_shadow); }
 
static void dummy_task_end(LEVEL l, PID p)
{ kern_printf("Dummy5"); kern_raise(XINVALID_DUMMY_OP,exec_shadow); }
 
static void dummy_task_sleep(LEVEL l, PID p)
{ kern_printf("Dummy6"); kern_raise(XINVALID_DUMMY_OP,exec_shadow); }
 
static int dummy_guest_create(LEVEL l, PID p, TASK_MODEL *m)
{ kern_printf("Dummy8"); kern_raise(XINVALID_GUEST,exec_shadow); return 0; }
 
static void dummy_guest_detach(LEVEL l, PID p)
{ kern_printf("Dummy9"); kern_raise(XINVALID_GUEST,exec_shadow); }
 
static void dummy_guest_dispatch(LEVEL l, PID p, int nostop)
{ kern_printf("Dummy0"); kern_raise(XINVALID_GUEST,exec_shadow); }
 
static void dummy_guest_epilogue(LEVEL l, PID p)
{ kern_printf("Dummya"); kern_raise(XINVALID_GUEST,exec_shadow); }
 
static void dummy_guest_activate(LEVEL l, PID p)
{ kern_printf("Dummyb"); kern_raise(XINVALID_GUEST,exec_shadow); }
 
static void dummy_guest_insert(LEVEL l, PID p)
{ kern_printf("Dummyc"); kern_raise(XINVALID_GUEST,exec_shadow); }
 
static void dummy_guest_extract(LEVEL l, PID p)
{ kern_printf("Dummyd"); kern_raise(XINVALID_GUEST,exec_shadow); }
 
static void dummy_guest_endcycle(LEVEL l, PID p)
{ kern_printf("Dummye"); kern_raise(XINVALID_GUEST,exec_shadow); }
 
static void dummy_guest_end(LEVEL l, PID p)
{ kern_printf("Dummyf"); kern_raise(XINVALID_GUEST,exec_shadow); }
 
static void dummy_guest_sleep(LEVEL l, PID p)
{ kern_printf("Dummyg"); kern_raise(XINVALID_GUEST,exec_shadow); }
 
 
/*+ Dummy task must be present & cannot be killed; +*/
static TASK dummy()
{
244,7 → 146,7
if (p == NIL)
printk("\nPanic!!! can't create dummy task...\n");
 
/* dummy must block all tasks... */
/* dummy must block all signals... */
proc_table[p].sigmask = 0xFFFFFFFF;
}
 
253,55 → 155,27
TIME slice the slice for the Round Robin queue
int createmain 1 if the level creates the main task 0 otherwise
struct multiboot_info *mb used if createmain specified +*/
void dummy_register_level()
LEVEL dummy_register_level()
{
LEVEL l; /* the level that we register */
dummy_level_des *lev; /* for readableness only */
 
printk("Entro in dummy_register_level\n");
printk("Inside dummy_register_level\n");
 
/* request an entry in the level_table */
l = level_alloc_descriptor();
l = level_alloc_descriptor(sizeof(dummy_level_des));
 
/* alloc the space needed for the dummy_level_des */
lev = (dummy_level_des *)kern_alloc(sizeof(dummy_level_des));
lev = (dummy_level_des *)level_table[l];
 
/* update the level_table with the new entry */
level_table[l] = (level_des *)lev;
printk(" lev=%d\n",(int)lev);
 
/* fill the standard descriptor */
strncpy(lev->l.level_name, DUMMY_LEVELNAME, MAX_LEVELNAME);
lev->l.level_code = DUMMY_LEVEL_CODE;
lev->l.level_version = DUMMY_LEVEL_VERSION;
lev->l.public_scheduler = dummy_public_scheduler;
lev->l.public_guarantee = NULL;
lev->l.public_create = dummy_public_create;
lev->l.public_dispatch = dummy_public_dispatch;
lev->l.public_epilogue = dummy_public_epilogue;
 
lev->l.level_accept_task_model = dummy_level_accept_task_model;
lev->l.level_accept_guest_model = dummy_level_accept_guest_model;
lev->l.level_status = dummy_level_status;
lev->l.level_scheduler = dummy_level_scheduler;
lev->l.level_guarantee = NULL; /* No guarantee! */
 
lev->l.task_create = dummy_task_create;
lev->l.task_detach = dummy_task_detach;
lev->l.task_eligible = dummy_task_eligible;
lev->l.task_dispatch = dummy_task_dispatch;
lev->l.task_epilogue = dummy_task_epilogue;
lev->l.task_activate = dummy_task_activate;
lev->l.task_insert = dummy_task_insert;
lev->l.task_extract = dummy_task_extract;
lev->l.task_endcycle = dummy_task_endcycle;
lev->l.task_end = dummy_task_end;
lev->l.task_sleep = dummy_task_sleep;
 
lev->l.guest_create = dummy_guest_create;
lev->l.guest_detach = dummy_guest_detach;
lev->l.guest_dispatch = dummy_guest_dispatch;
lev->l.guest_epilogue = dummy_guest_epilogue;
lev->l.guest_activate = dummy_guest_activate;
lev->l.guest_insert = dummy_guest_insert;
lev->l.guest_extract = dummy_guest_extract;
lev->l.guest_endcycle = dummy_guest_endcycle;
lev->l.guest_end = dummy_guest_end;
lev->l.guest_sleep = dummy_guest_sleep;
 
/* the dummy process will be created at init_time.
see also dummy_level_accept_model,dummy_create */
lev->dummy = -1;
309,4 → 183,6
printk("\tPosto dummy_create\n");
 
sys_atrunlevel(dummy_create,(void *) l, RUNLEVEL_INIT);
 
return l;
}