WebSVN - shark - Blame - Rev 952 - /shark/tags/rel_1_5

Rev	Author	Line No.	Line
221	giacomo	1	//=====================================================================
		2	// FFFFFFIII RRRRR SSTTTTTTT
		3	// FF IIR RR SS
		4	// FF IR SS
		5	// FFFFFF RRRR SSSSST
		6	// FF FI RRR SS
		7	// FF II RRR SS
		8	// FF IIIIIR RS
		9	//
		10	// Basic FSF(FIRST Scheduling Framework) contract management
		11	// S.Ha.R.K. Implementation
		12	//=====================================================================
		13
405	trimarchi	14	#include "ll/i386/64bit.h"
679	trimarchi	15	#include <kernel/kern.h>
		16	#include <modules/sem.h>
		17	#include <modules/hartport.h>
		18	#include <modules/cabs.h>
405	trimarchi	19
881	trimarchi	20	#include "fsf.h"
679	trimarchi	21	#include "fsf_service_task.h"
896	trimarchi	22	#include "fsf_server.h"
679	trimarchi	23	#include "message.h"
221	giacomo	24
868	trimarchi	25	#include "posixstar.h"
		26	#include "edfstar.h"
		27	#include "nonestar.h"
		28	#include "rmstar.h"
944	trimarchi	29	#include "tdstar.h"
868	trimarchi	30
221	giacomo	31	#include <pthread.h>
		32	#include <stdlib.h>
808	trimarchi	33	#include "pistar.h"
868	trimarchi	34	#include <modules/comm_message.h>
221	giacomo	35
417	giacomo	36	//#define FSF_DEBUG
221	giacomo	37
410	trimarchi	38	int current_server=0;
407	giacomo	39	server_elem server_list[FSF_MAX_N_SERVERS];
406	giacomo	40	bandwidth_t fsf_max_bw = 0;
405	trimarchi	41
241	giacomo	42	int fsf_server_level;
868	trimarchi	43	int fsf_posix_level = -1;
808	trimarchi	44	int shared_object_level;
679	trimarchi	45	PID server_task;
868	trimarchi	46	fsf_contract_parameters_t contract;
221	giacomo	47
868	trimarchi	48
679	trimarchi	49	PORT channel[2];
		50
868	trimarchi	51	fsf_server_id_t service_server = -1;
		52	fsf_contract_parameters_t service_contract;
		53
896	trimarchi	54	bandwidth_t SERVER_return_bandwidth();
		55
808	trimarchi	56	int FSF_register_shared_object_module(void) {
811	trimarchi	57	fsf_register_shared_object();
808	trimarchi	58	return PISTAR_register_module();
		59	}
		60
		61
810	trimarchi	62	int FSF_get_shared_object_level() {
		63	return shared_object_level;
		64	}
		65
868	trimarchi	66	int FSF_register_module(int posix_level, int server_level, bandwidth_t max_bw)
224	giacomo	67	{
		68	printk("FSF Module\n");
410	trimarchi	69	current_server=0;
241	giacomo	70	fsf_server_level = server_level;
868	trimarchi	71	fsf_posix_level = posix_level;
406	giacomo	72	fsf_max_bw = max_bw;
811	trimarchi	73	shared_object_level = FSF_register_shared_object_module();
679	trimarchi	74
224	giacomo	75	return 0;
		76
		77	}
		78
868	trimarchi	79	void FSF_start_service_task(void) {
679	trimarchi	80
868	trimarchi	81	int err;
881	trimarchi	82	struct timespec default_period = FSF_SERVICE_THREAD_PERIOD;
		83	struct timespec default_budget = FSF_SERVICE_THREAD_BUDGET;
868	trimarchi	84	DUMMY_TASK_MODEL m;
881	trimarchi	85	fsf_sched_params_t pr;
937	trimarchi	86	int budget_overrun_sig_notify = FSF_NULL_SIGNAL;
		87	union sigval budget_overrun_sig_value = {0};
		88	int deadline_miss_sig_notify = FSF_NULL_SIGNAL;
		89	union sigval deadline_miss_sig_value = {0};
868	trimarchi	90
881	trimarchi	91	pr.policy=FSF_NONE;
		92	pr.params=&m;
		93
868	trimarchi	94	dummy_task_default_model(m);
941	trimarchi	95
679	trimarchi	96	// create the service task
		97	// create the communication channel for negotiation and renegotiation
		98
		99	channel[1] = port_create("CHANW",sizeof(struct mess),1,STREAM,WRITE);
		100
		101	channel[0] = port_create("CHANR",sizeof(struct mess),1,STREAM,READ);
		102
868	trimarchi	103	fsf_initialize_contract(&service_contract);
941	trimarchi	104
		105	err=fsf_set_contract_basic_parameters(&service_contract,&default_budget,&default_period,FSF_DEFAULT_WORKLOAD);
		106	if (err) exit(err);
868	trimarchi	107
941	trimarchi	108	err=fsf_set_contract_timing_requirements (&service_contract,
937	trimarchi	109	true,NULL,
		110	budget_overrun_sig_notify,
		111	budget_overrun_sig_value,
		112	deadline_miss_sig_notify,
		113	deadline_miss_sig_value);
941	trimarchi	114	if (err) exit(err);
937	trimarchi	115
868	trimarchi	116	negotiate_contract(&service_contract,&service_server);
		117
		118	//server_task = task_create("stask",service_task,model,NULL);
881	trimarchi	119	err = fsf_create_local_thread(service_server,&pr, &server_task,NULL,(fsf_thread_code_t)service_task,NULL);
868	trimarchi	120	if (err) {
679	trimarchi	121	cprintf("error creating service task\n");
		122	sys_shutdown_message("Could not create service_task");
927	pj	123	exit(1);
679	trimarchi	124	}
		125
		126	task_activate(server_task);
		127
		128	}
		129
		130
221	giacomo	131	/* Convert the contract specification to
		132	* budget parameters
		133	*/
241	giacomo	134	int set_SERVER_budget_from_contract
221	giacomo	135	(const fsf_contract_parameters_t *contract,
		136	int *budget)
		137	{
		138
		139	int local_scheduler_level = 0;
		140
868	trimarchi	141	switch (contract->policy) {
952	trimarchi	142	case FSF_RR:
241	giacomo	143	local_scheduler_level = POSIXSTAR_register_level(fsf_server_level,5000,32);
221	giacomo	144	break;
868	trimarchi	145	case FSF_EDF:
241	giacomo	146	local_scheduler_level = EDFSTAR_register_level(fsf_server_level);
221	giacomo	147	break;
952	trimarchi	148	case FSF_FP:
241	giacomo	149	local_scheduler_level = RMSTAR_register_level(fsf_server_level);
221	giacomo	150	break;
868	trimarchi	151	case FSF_NONE:
855	trimarchi	152	local_scheduler_level = NONESTAR_register_level(fsf_server_level);
334	giacomo	153	break;
944	trimarchi	154	case FSF_TABLE_DRIVEN:
		155	kern_printf("Register level");
		156	local_scheduler_level = TDSTAR_register_level(fsf_server_level);
		157	break;
221	giacomo	158	}
405	trimarchi	159
908	trimarchi	160	if (contract->d_equals_t == true) {
241	giacomo	161	*budget = SERVER_setbudget(fsf_server_level,
221	giacomo	162	TIMESPEC2USEC(&(contract->budget_min)),
		163	TIMESPEC2USEC(&(contract->period_max)),
661	giacomo	164	TIMESPEC2USEC(&(contract->period_max)),
868	trimarchi	165	local_scheduler_level,contract->policy);
661	giacomo	166	} else {
		167	*budget = SERVER_setbudget(fsf_server_level,
		168	TIMESPEC2USEC(&(contract->budget_min)),
		169	TIMESPEC2USEC(&(contract->period_max)),
		170	TIMESPEC2USEC(&(contract->deadline)),
868	trimarchi	171	local_scheduler_level,contract->policy);
661	giacomo	172	}
221	giacomo	173
		174	return 0;
		175
		176	}
		177
405	trimarchi	178	int adjust_SERVER_budget
		179	(int budget, const TIME budget_actual,
661	giacomo	180	const TIME period_actual, const TIME dline_actual)
221	giacomo	181	{
		182
241	giacomo	183	SERVER_adjust_budget(fsf_server_level,
405	trimarchi	184	budget_actual,
		185	period_actual,
661	giacomo	186	dline_actual,
241	giacomo	187	budget);
221	giacomo	188
		189	return 0;
		190
		191	}
		192
		193	/* Admission Test function */
		194	int add_contract(const fsf_contract_parameters_t *contract)
		195	{
896	trimarchi	196	bandwidth_t current_bandwidth,U;
		197
		198	TIME T,Q;
897	trimarchi	199
		200	#ifdef FSF_DEBUG
		201	kern_printf("(GA TEST)");
		202	#endif
896	trimarchi	203	T=TIMESPEC2USEC(&(contract->period_max));
		204	Q=TIMESPEC2USEC(&(contract->budget_min));
		205
		206	mul32div32to32(MAX_BANDWIDTH,Q,T,U);
		207	/* The current bandwidth is the min bandwidth */
		208	current_bandwidth=SERVER_return_bandwidth(fsf_server_level);
		209
897	trimarchi	210	if (fsf_max_bw<current_bandwidth+U) return -1;
896	trimarchi	211
221	giacomo	212	return 0;
		213
		214	}
		215
687	trimarchi	216	void contract_to_server(const fsf_contract_parameters_t *contract, int i) {
		217
410	trimarchi	218	TIME T,Q;
		219	#ifdef FSF_DEBUG
		220	int temp;
		221	#endif
		222
		223	T=TIMESPEC2USEC(&contract->period_min);
		224	Q=TIMESPEC2USEC(&contract->budget_max);
908	trimarchi	225	server_list[i].Cmax=Q;
		226
410	trimarchi	227	mul32div32to32(MAX_BANDWIDTH,Q,T,server_list[current_server].Umax);
		228
417	giacomo	229	T=TIMESPEC2USEC(&contract->period_min);
		230	server_list[i].Tmin=T;
		231
410	trimarchi	232	T=TIMESPEC2USEC(&contract->period_max);
		233	server_list[i].Tmax=T;
417	giacomo	234
410	trimarchi	235	Q=TIMESPEC2USEC(&contract->budget_min);
		236	server_list[i].Cmin=Q;
		237
		238	mul32div32to32(MAX_BANDWIDTH,Q,T,server_list[i].Umin);
416	trimarchi	239	server_list[i].U=server_list[i].Umin;
661	giacomo	240
908	trimarchi	241	if (contract->d_equals_t == true) {
661	giacomo	242	server_list[i].deadline = 0;
908	trimarchi	243	server_list[i].d_equals_t = true;
661	giacomo	244	} else {
		245	server_list[i].deadline = TIMESPEC2USEC(&contract->deadline);;
908	trimarchi	246	server_list[i].d_equals_t = false;
661	giacomo	247	}
		248
843	trimarchi	249	server_list[i].Qs = contract->quality;
		250	server_list[i].Is = contract->importance;
		251
410	trimarchi	252	#ifdef FSF_DEBUG
		253	mul32div32to32(server_list[i].Umax,100, MAX_BANDWIDTH, temp);
		254	kern_printf("(Umax %d)",temp);
		255	mul32div32to32(server_list[i].Umin,100, MAX_BANDWIDTH, temp);
		256	kern_printf("(Umin %d)",temp);
		257	#endif
		258
687	trimarchi	259	}
		260
		261	int relink_contract_to_server(const fsf_contract_parameters_t *contract,
		262	fsf_server_id_t server)
		263	{
		264	int i=0;
		265	#ifdef FSF_DEBUG
		266	kern_printf("(Relink Server %d)",server);
		267	#endif
		268	// find contract
		269	while(i<current_server) {
		270	if (server_list[i].server==server) break;
		271	i++;
		272	}
		273
		274	server_list[i].server=server;
843	trimarchi	275	// server_list[i].Qs=1;
687	trimarchi	276
		277	contract_to_server(contract, i);
		278
		279
410	trimarchi	280	return 0;
		281
		282	}
		283
221	giacomo	284	int link_contract_to_server(const fsf_contract_parameters_t *contract,
		285	fsf_server_id_t server)
		286	{
407	giacomo	287	#ifdef FSF_DEBUG
405	trimarchi	288	kern_printf("(Link Server %d)",server);
		289	#endif
		290
410	trimarchi	291	server_list[current_server].server=server;
843	trimarchi	292	//server_list[current_server].Qs=1;
405	trimarchi	293
687	trimarchi	294	contract_to_server(contract,current_server);
405	trimarchi	295
410	trimarchi	296	current_server++;
221	giacomo	297	return 0;
		298
		299	}
		300
		301	int remove_contract(fsf_server_id_t server)
		302	{
405	trimarchi	303	int i=0;
		304	// find the contract
410	trimarchi	305	while(i<current_server) {
405	trimarchi	306	if (server_list[i].server==server) break;
		307	i++;
		308	}
221	giacomo	309
405	trimarchi	310	// compress the array;
410	trimarchi	311	while (i<(current_server-1)) {
405	trimarchi	312	server_list[i].server=server_list[i+1].server;
		313	server_list[i].Umin=server_list[i+1].Umin;
416	trimarchi	314	server_list[i].U=server_list[i+1].Umin;
405	trimarchi	315	server_list[i].Umax=server_list[i+1].Umax;
		316	server_list[i].Cmin=server_list[i+1].Cmin;
908	trimarchi	317	server_list[i].Cmax=server_list[i+1].Cmax;
417	giacomo	318	server_list[i].Tmin=server_list[i+1].Tmin;
405	trimarchi	319	server_list[i].Tmax=server_list[i+1].Tmax;
		320	server_list[i].Qs=server_list[i+1].Qs;
661	giacomo	321	server_list[i].deadline = server_list[i+1].deadline;
		322	server_list[i].d_equals_t = server_list[i+1].d_equals_t;
843	trimarchi	323	server_list[i].Is = server_list[i+1].Is;
417	giacomo	324
405	trimarchi	325	i++;
		326	}
410	trimarchi	327	current_server--;
405	trimarchi	328
		329
221	giacomo	330	return 0;
		331
		332	}
		333
868	trimarchi	334	int
		335	fsf_get_renegotiation_status
		336	(fsf_server_id_t server,
		337	fsf_renegotiation_status_t *renegotiation_status)
		338	{
221	giacomo	339
868	trimarchi	340	if (SERVER_get_renegotiation_status(fsf_server_level,server))
		341	*renegotiation_status=FSF_IN_PROGRESS;
		342	else
		343	*renegotiation_status=FSF_ADMITTED;
		344
		345	return 0;
		346
		347
		348	}
		349
896	trimarchi	350	int
		351	fsf_request_change_quality_and_importance
		352	(fsf_server_id_t server,
		353	int new_importance,
		354	int new_quality)
		355	{
		356	struct mess m;
868	trimarchi	357
896	trimarchi	358	// send response server is -1 if the operation fail
		359	m.type=CHANGE_PARAMETER;
908	trimarchi	360	m.server=server;
		361	m.qi.quality = new_quality;
		362	m.qi.importance = new_importance;
896	trimarchi	363	//memmove(&m.contract,contract, sizeof(fsf_contract_parameters_t));
		364
		365	port_send(channel[1],&m,BLOCK);
		366
		367	port_receive(channel[0], &m, BLOCK);
		368
		369	if (m.server==-1)
		370	return FSF_ERR_CONTRACT_REJECTED;
		371
		372	//*server=m.server;
		373
908	trimarchi	374	return 0;
896	trimarchi	375	}
		376
		377
221	giacomo	378	int fsf_negotiate_contract
		379	(const fsf_contract_parameters_t *contract,
		380	fsf_server_id_t *server)
		381	{
880	trimarchi	382	struct mess m;
221	giacomo	383
679	trimarchi	384	// send response server is -1 if the operation fail
880	trimarchi	385	m.type=NEGOTIATE_CONTRACT;
		386	memmove(&m.contract,contract, sizeof(fsf_contract_parameters_t));
		387	//kern_printf("(SN:%d)",*server);
		388	port_send(channel[1],&m,BLOCK);
		389	//kern_printf("BR:%d)", *server);
		390	port_receive(channel[0], &m, BLOCK);
		391	//kern_printf("(EN:%d)", *server);
		392	if (m.server==-1)
679	trimarchi	393	return FSF_ERR_CONTRACT_REJECTED;
221	giacomo	394
880	trimarchi	395	*server=m.server;
679	trimarchi	396
221	giacomo	397	return 0;
		398
		399	}
		400
872	trimarchi	401	int
		402	fsf_negotiate_contract_for_new_thread
		403	(const fsf_contract_parameters_t *contract,
		404	fsf_server_id_t *server,
		405	pthread_t *thread,
		406	pthread_attr_t *attr,
		407	fsf_thread_code_t thread_code,
		408	void *arg) {
		409
		410	int err=0;
		411
		412	err = fsf_negotiate_contract(contract,server);
		413	if (!err) {
		414	err = pthread_create(thread, attr, thread_code, arg);
		415	if (!err)
		416	err = fsf_bind_thread_to_server(server,thread);
		417	} else return err;
		418
		419	return err;
		420	}
		421
		422	int
		423	fsf_negotiate_contract_for_myself
		424	(const fsf_contract_parameters_t *contract,
		425	fsf_server_id_t *server) {
		426
		427	int err=0;
		428
		429	err = fsf_negotiate_contract(contract,server);
		430	if (!err) {
937	trimarchi	431	#ifdef FSF_DEBUG
		432	kern_printf("Bind task");
		433	#endif
872	trimarchi	434	err = fsf_bind_thread_to_server(*server,exec_shadow);
937	trimarchi	435
872	trimarchi	436	} else return err;
		437
		438	return err;
		439	}
		440
868	trimarchi	441	int fsf_unbind_thread_from_server
		442	(pthread_t thread)
		443	{
		444
		445	int local_scheduler_level, scheduler_id;
		446
		447	/* Move thread from the local scheduler module to posix level */
		448
		449	#ifdef FSF_DEBUG
		450	kern_printf("(UnBind thread = %d)",thread);
		451	#endif
		452
		453	/* Check if thread exsists */
		454	if (thread == -1)
		455	return FSF_ERR_BAD_ARGUMENT;
		456
		457	local_scheduler_level = SERVER_get_local_scheduler_level_from_pid(fsf_server_level,thread);
		458	scheduler_id = SERVER_get_local_scheduler_id_from_pid(fsf_server_level,thread);
		459
		460	/* Check if thread is already bind */
		461	if (scheduler_id == FSF_NONE) {
		462	/* Check if it is bind to a server */
		463	if (NONESTAR_getbudget(local_scheduler_level,thread) == -1)
		464	return FSF_ERR_BAD_ARGUMENT;
		465	else {
		466
		467	STD_command_message *msg;
		468	NRT_TASK_MODEL nrt;
		469
		470	nrt_task_default_model(nrt);
		471	nrt_task_def_save_arrivals(nrt);
		472
		473	/* Send change level command to local scheduler */
		474	msg = (STD_command_message *)malloc(sizeof(STD_command_message));
		475
		476	msg->command = STD_SET_NEW_MODEL;
		477	msg->param = (void *)(&nrt);
		478	level_table[fsf_posix_level]->public_message(fsf_posix_level,thread,msg);
		479
		480	msg->command = STD_SET_NEW_LEVEL;
		481	msg->param = (void *)(fsf_posix_level);
		482	task_message(msg,thread,0);
		483
		484	free(msg);
		485	}
		486	}
		487
		488	return 0;
		489
		490	}
		491
873	trimarchi	492	int
		493	fsf_bind_local_thread_to_server
		494	(fsf_server_id_t server,
		495	pthread_t thread,
		496	fsf_sched_params_t *sched_params)
		497	{
868	trimarchi	498
873	trimarchi	499	STD_command_message *msg;
		500	int local_scheduler_level,scheduler_id;
		501
		502	/* Move thread from the posix module to local scheduler */
		503
		504	#ifdef FSF_DEBUG
		505	kern_printf("(Bind thread = %d to Server = %d)",thread,server);
		506	#endif
		507
		508	/* Check if server and thread exsist */
		509	if (server == -1 \|\| thread == -1)
		510	return FSF_ERR_BAD_ARGUMENT;
		511
		512	local_scheduler_level = SERVER_get_local_scheduler_level_from_budget(fsf_server_level,server);
		513	if (local_scheduler_level==-1)
952	trimarchi	514	return FSF_ERR_UNKNOWN_SCHEDULED_THREAD;
873	trimarchi	515
		516	scheduler_id = SERVER_get_local_scheduler_id_from_budget(fsf_server_level,server);
881	trimarchi	517
		518	if (scheduler_id!=sched_params->policy)
		519	return FSF_ERR_SCHED_POLICY_NOT_COMPATIBLE;
873	trimarchi	520
		521	/* Check if thread is already bind */
		522	switch(scheduler_id) {
		523
952	trimarchi	524	case FSF_FP:
873	trimarchi	525	{
881	trimarchi	526	TASK_MODEL m=(TASK_MODEL)(sched_params->params);
		527	HARD_TASK_MODEL h=(HARD_TASK_MODEL )(sched_params->params);
873	trimarchi	528
		529	if (m->pclass != HARD_PCLASS)
		530	return FSF_ERR_SCHED_POLICY_NOT_COMPATIBLE;
		531
		532	h = (HARD_TASK_MODEL *)m;
		533
		534	if (!h->wcet \|\| !h->mit) return FSF_ERR_SCHED_POLICY_NOT_COMPATIBLE;
		535
		536	/* now we know that m is a valid model */
		537	if (RMSTAR_getbudget(local_scheduler_level,thread) != -1)
		538	return FSF_ERR_BAD_ARGUMENT;
		539
		540	/* Set server on local scheduler */
		541	RMSTAR_setbudget(local_scheduler_level,thread,(int)(server));
		542
		543	/* Send change level command to posix level */
		544	}
877	trimarchi	545	break;
		546
873	trimarchi	547	case FSF_EDF:
		548	{
881	trimarchi	549	TASK_MODEL m=(TASK_MODEL)(sched_params->params);
		550	HARD_TASK_MODEL h=(HARD_TASK_MODEL )(sched_params->params);
873	trimarchi	551
		552	if (m->pclass != HARD_PCLASS)
		553	return FSF_ERR_SCHED_POLICY_NOT_COMPATIBLE;
		554
		555	h = (HARD_TASK_MODEL *)m;
		556
		557	if (!h->wcet \|\| !h->mit) return FSF_ERR_SCHED_POLICY_NOT_COMPATIBLE;
		558
		559	if (EDFSTAR_getbudget(local_scheduler_level,thread) != -1)
		560	return FSF_ERR_BAD_ARGUMENT;
		561
		562	/* Set server on local scheduler */
		563	EDFSTAR_setbudget(local_scheduler_level,thread,(int)(server));
		564
		565	}
		566	break;
		567
952	trimarchi	568	case FSF_RR:
873	trimarchi	569	{
881	trimarchi	570	TASK_MODEL m=(TASK_MODEL)(sched_params->params);
873	trimarchi	571
		572	if (m->pclass != NRT_PCLASS)
		573	return FSF_ERR_SCHED_POLICY_NOT_COMPATIBLE;
		574
		575	if (POSIXSTAR_getbudget(local_scheduler_level,thread) != -1)
		576	return FSF_ERR_BAD_ARGUMENT;
		577
		578	/* Set server on local scheduler */
		579	POSIXSTAR_setbudget(local_scheduler_level,thread,(int)(server));
		580	}
877	trimarchi	581	break;
873	trimarchi	582
877	trimarchi	583	default:
		584
873	trimarchi	585	return FSF_ERR_BAD_ARGUMENT;
877	trimarchi	586
873	trimarchi	587	}
		588
		589	msg = (STD_command_message *)malloc(sizeof(STD_command_message));
877	trimarchi	590	if (msg) {
		591	SYS_FLAGS f;
		592	f=kern_fsave();
873	trimarchi	593	msg->command = STD_SET_NEW_MODEL;
881	trimarchi	594	msg->param = (void *)(sched_params->params);
873	trimarchi	595	level_table[local_scheduler_level]->public_message(local_scheduler_level,thread,msg);
		596
		597	msg->command = STD_SET_NEW_LEVEL;
		598	msg->param = (void *)(local_scheduler_level);
		599	task_message(msg,thread,0);
940	trimarchi	600	scheduler();
		601	kern_context_load(proc_table[exec_shadow].context);
877	trimarchi	602	kern_frestore(f);
873	trimarchi	603	free(msg);
		604	} else return FSF_ERR_INTERNAL_ERROR;
		605
		606	return 0;
		607
		608	}
		609
		610
868	trimarchi	611	int fsf_bind_thread_to_server
		612	(fsf_server_id_t server,
		613	pthread_t thread)
		614	{
		615
		616	STD_command_message *msg;
		617	int local_scheduler_level,scheduler_id;
937	trimarchi	618	SYS_FLAGS f;
868	trimarchi	619	/* Move thread from the posix module to local scheduler */
		620
		621	#ifdef FSF_DEBUG
880	trimarchi	622	kern_printf("(Bthr=%d to Sr=%d)",thread,server);
868	trimarchi	623	#endif
		624
		625	/* Check if server and thread exsist */
		626	if (server == -1 \|\| thread == -1)
		627	return FSF_ERR_BAD_ARGUMENT;
		628
		629	local_scheduler_level = SERVER_get_local_scheduler_level_from_budget(fsf_server_level,server);
873	trimarchi	630	if (local_scheduler_level==-1)
952	trimarchi	631	return FSF_ERR_UNKNOWN_SCHEDULED_THREAD;
873	trimarchi	632
868	trimarchi	633	scheduler_id = SERVER_get_local_scheduler_id_from_budget(fsf_server_level,server);
		634
		635	/* Check if thread is already bind */
		636	if (scheduler_id == FSF_NONE) {
		637	DUMMY_TASK_MODEL rt_arg;
		638
		639	if (NONESTAR_getbudget(local_scheduler_level,thread) != -1)
		640	return FSF_ERR_BAD_ARGUMENT;
		641
		642	/* Set server on local scheduler */
		643	NONESTAR_setbudget(local_scheduler_level,thread,(int)(server));
937	trimarchi	644	f=kern_fsave();
868	trimarchi	645	/* Send change level command to posix level */
		646	msg = (STD_command_message *)malloc(sizeof(STD_command_message));
		647
		648	msg->command = STD_SET_NEW_MODEL;
		649	msg->param = (void *)(&rt_arg);
937	trimarchi	650	level_table[local_scheduler_level]->public_message(local_scheduler_level,thread,msg);
868	trimarchi	651	msg->command = STD_SET_NEW_LEVEL;
		652	msg->param = (void *)(local_scheduler_level);
		653	task_message(msg,thread,0);
937	trimarchi	654
		655	scheduler();
		656	kern_context_load(proc_table[exec_shadow].context);
		657	kern_frestore(f);
		658
		659
868	trimarchi	660	free(msg);
937	trimarchi	661
868	trimarchi	662	} else return FSF_ERR_BAD_ARGUMENT;
		663
		664	return 0;
		665	}
		666
881	trimarchi	667	int fsf_create_local_thread
		668	(fsf_server_id_t server,
		669	fsf_sched_params_t *local_scheduler_arg,
		670	pthread_t *thread,
		671	pthread_attr_t *attr,
		672	fsf_thread_code_t thread_code,
		673	void *arg)
221	giacomo	674	{
		675
		676	int local_scheduler_level,scheduler_id;
		677
		678	/* Check if server and thread exsist */
241	giacomo	679	if (server == NIL)
873	trimarchi	680	return FSF_ERR_BAD_ARGUMENT;
221	giacomo	681
241	giacomo	682	local_scheduler_level = SERVER_get_local_scheduler_level_from_budget(fsf_server_level,server);
		683	scheduler_id = SERVER_get_local_scheduler_id_from_budget(fsf_server_level,server);
868	trimarchi	684	#ifdef FSF_DEBUG
		685	kern_printf("sched policy %d", scheduler_id);
		686	#endif
888	trimarchi	687
		688	if (scheduler_id!=local_scheduler_arg->policy)
		689	return FSF_ERR_SCHED_POLICY_NOT_COMPATIBLE;
		690
221	giacomo	691	/* Check if thread is already bind */
		692	switch (scheduler_id) {
952	trimarchi	693	case FSF_RR:
221	giacomo	694
888	trimarchi	695	nrt_task_def_arg((NRT_TASK_MODEL )(local_scheduler_arg->params),arg);
		696	nrt_task_def_level((NRT_TASK_MODEL )(local_scheduler_arg->params),local_scheduler_level);
221	giacomo	697
888	trimarchi	698	*thread = task_create("POSIXSTAR", thread_code, local_scheduler_arg->params, NULL);
267	giacomo	699	if (*thread == NIL) {
		700	#ifdef FSF_DEBUG
		701	kern_printf("(FSF:Error creating thread)");
		702	#endif
873	trimarchi	703	return FSF_ERR_INTERNAL_ERROR;
267	giacomo	704	}
221	giacomo	705
241	giacomo	706	POSIXSTAR_setbudget(local_scheduler_level, *thread, (int)(server));
234	giacomo	707
221	giacomo	708	break;
868	trimarchi	709	case FSF_EDF:
221	giacomo	710
888	trimarchi	711	hard_task_def_arg((HARD_TASK_MODEL )(local_scheduler_arg->params),arg);
		712	hard_task_def_level((HARD_TASK_MODEL )(local_scheduler_arg->params),local_scheduler_level);
250	giacomo	713
888	trimarchi	714	*thread = task_create("EDFSTAR", thread_code, local_scheduler_arg->params, NULL);
250	giacomo	715	if (*thread == NIL)
873	trimarchi	716	return FSF_ERR_INTERNAL_ERROR;
250	giacomo	717
		718	EDFSTAR_setbudget(local_scheduler_level, *thread, (int)(server));
		719
221	giacomo	720	break;
235	giacomo	721
952	trimarchi	722	case FSF_FP:
235	giacomo	723
888	trimarchi	724	hard_task_def_arg((HARD_TASK_MODEL )(local_scheduler_arg->params),arg);
		725	hard_task_def_level((HARD_TASK_MODEL )(local_scheduler_arg->params),local_scheduler_level);
273	giacomo	726
888	trimarchi	727	*thread = task_create("RMSTAR", thread_code, local_scheduler_arg->params, NULL);
273	giacomo	728	if (*thread == NIL)
873	trimarchi	729	return FSF_ERR_INTERNAL_ERROR;
273	giacomo	730
		731	RMSTAR_setbudget(local_scheduler_level, *thread, (int)(server));
		732
		733	break;
868	trimarchi	734	case FSF_NONE:
334	giacomo	735
888	trimarchi	736	dummy_task_def_arg(( DUMMY_TASK_MODEL )(local_scheduler_arg->params),arg);
		737	dummy_task_def_level(( DUMMY_TASK_MODEL )(local_scheduler_arg->params),local_scheduler_level);
910	trimarchi	738
888	trimarchi	739	*thread = task_create("NONESTAR", thread_code, local_scheduler_arg->params, NULL);
334	giacomo	740	if (*thread == NIL)
873	trimarchi	741	return FSF_ERR_INTERNAL_ERROR;
334	giacomo	742
855	trimarchi	743	NONESTAR_setbudget(local_scheduler_level, *thread, (int)(server));
334	giacomo	744
		745	break;
910	trimarchi	746
		747	case FSF_TABLE_DRIVEN:
		748	{
944	trimarchi	749	HARD_TASK_MODEL ht;
		750	hard_task_default_model(ht);
		751	hard_task_def_aperiodic(ht);
910	trimarchi	752
944	trimarchi	753	hard_task_def_arg(ht,arg);
		754	hard_task_def_level(ht,local_scheduler_level);
910	trimarchi	755
944	trimarchi	756	*thread = task_create("TDSTAR", thread_code, &ht, NULL);
910	trimarchi	757	if (*thread == NIL)
		758	return FSF_ERR_INTERNAL_ERROR;
		759
930	trimarchi	760	TDSTAR_setbudget(local_scheduler_level, *thread, (int)(server));
944	trimarchi	761	TDSTAR_settable(local_scheduler_level, (fsf_table_driven_params_t )(local_scheduler_arg->params),thread);
910	trimarchi	762	}
		763	break;
		764
334	giacomo	765
221	giacomo	766	default:
873	trimarchi	767	return FSF_ERR_INTERNAL_ERROR;
221	giacomo	768	break;
		769	}
811	trimarchi	770
		771	#ifdef FSF_DEBUG
		772	kern_printf("(FSF:Insert thread = %d to Server = %d)",*thread,server);
		773	#endif
221	giacomo	774
		775	return 0;
		776
		777	}
		778
808	trimarchi	779	int fsf_settask_nopreemptive
221	giacomo	780	(fsf_server_id_t *server,
		781	pthread_t thread)
		782	{
		783	int local_scheduler_level, scheduler_id;
		784
241	giacomo	785	local_scheduler_level = SERVER_get_local_scheduler_level_from_pid(fsf_server_level,thread);
		786	scheduler_id = SERVER_get_local_scheduler_id_from_pid(fsf_server_level, thread);
221	giacomo	787
		788	switch (scheduler_id) {
952	trimarchi	789	case FSF_RR:
816	trimarchi	790	POSIXSTAR_set_nopreemtive_current(local_scheduler_level);
		791	return 1;
808	trimarchi	792	break;
868	trimarchi	793	case FSF_EDF:
808	trimarchi	794	EDFSTAR_set_nopreemtive_current(local_scheduler_level);
		795	return 1;
		796	break;
952	trimarchi	797	case FSF_FP:
812	trimarchi	798	RMSTAR_set_nopreemtive_current(local_scheduler_level);
		799	return 1;
808	trimarchi	800	break;
868	trimarchi	801	case FSF_NONE:
808	trimarchi	802	break;
		803	default:
		804	return -1;
		805	}
		806	return -1;
		807	}
		808
		809
		810	int fsf_settask_preemptive
		811	(fsf_server_id_t *server,
		812	pthread_t thread)
		813	{
		814	int local_scheduler_level, scheduler_id;
		815
		816	local_scheduler_level = SERVER_get_local_scheduler_level_from_pid(fsf_server_level,thread);
		817	scheduler_id = SERVER_get_local_scheduler_id_from_pid(fsf_server_level, thread);
		818
		819	switch (scheduler_id) {
952	trimarchi	820	case FSF_RR:
823	trimarchi	821	POSIXSTAR_unset_nopreemtive_current(local_scheduler_level);
816	trimarchi	822	return 1;
808	trimarchi	823	break;
868	trimarchi	824	case FSF_EDF:
808	trimarchi	825	EDFSTAR_unset_nopreemtive_current(local_scheduler_level);
		826	return 1;
		827	break;
952	trimarchi	828	case FSF_FP:
812	trimarchi	829	RMSTAR_unset_nopreemtive_current(local_scheduler_level);
		830	return 1;
808	trimarchi	831	break;
868	trimarchi	832	case FSF_NONE:
808	trimarchi	833	break;
		834	default:
		835	return -1;
		836	}
		837
		838	return -1;
		839
		840	}
		841
		842
		843	int fsf_get_server
868	trimarchi	844	(pthread_t thread,
		845	fsf_server_id_t *server)
808	trimarchi	846	{
		847	int local_scheduler_level, scheduler_id;
		848
		849	local_scheduler_level = SERVER_get_local_scheduler_level_from_pid(fsf_server_level,thread);
		850	scheduler_id = SERVER_get_local_scheduler_id_from_pid(fsf_server_level, thread);
		851
		852	switch (scheduler_id) {
952	trimarchi	853	case FSF_RR:
829	giacomo	854	*server = POSIXSTAR_getbudget(local_scheduler_level,thread);
		855	return 0;
868	trimarchi	856	case FSF_EDF:
829	giacomo	857	*server = EDFSTAR_getbudget(local_scheduler_level,thread);
		858	return 0;
952	trimarchi	859	case FSF_FP:
829	giacomo	860	*server = RMSTAR_getbudget(local_scheduler_level,thread);
		861	return 0;
868	trimarchi	862	case FSF_NONE:
855	trimarchi	863	*server = NONESTAR_getbudget(local_scheduler_level,thread);
829	giacomo	864	return 0;
235	giacomo	865	default:
221	giacomo	866	return -1;
		867	}
		868
		869	return -1;
		870
		871	}
		872
339	giacomo	873	int fsf_get_server_level(void)
		874	{
		875
		876	return fsf_server_level;
		877
		878	}
		879
221	giacomo	880	int fsf_cancel_contract
868	trimarchi	881	(fsf_server_id_t server)
221	giacomo	882	{
		883
		884	int local_scheduler_level, scheduler_id;
411	trimarchi	885	SYS_FLAGS f;
		886	TIME T,Q;
		887	int i=0;
221	giacomo	888
		889	#ifdef FSF_DEBUG
868	trimarchi	890	kern_printf("(Remove server %d)",server);
221	giacomo	891	#endif
		892
		893	/* Check server id */
868	trimarchi	894	if (server < 0)
873	trimarchi	895	return FSF_ERR_BAD_ARGUMENT;
221	giacomo	896
868	trimarchi	897	local_scheduler_level = SERVER_get_local_scheduler_level_from_budget(fsf_server_level,server);
		898	scheduler_id = SERVER_get_local_scheduler_id_from_budget(fsf_server_level,server);
221	giacomo	899
		900	switch (scheduler_id) {
952	trimarchi	901	case FSF_RR:
221	giacomo	902
		903	/* Check if some thread use the server */
868	trimarchi	904	if(POSIXSTAR_budget_has_thread(local_scheduler_level,server))
873	trimarchi	905	return FSF_ERR_NOT_CONTRACTED_SERVER;
221	giacomo	906
		907	break;
868	trimarchi	908	case FSF_EDF:
235	giacomo	909	/* Check if some thread use the server */
868	trimarchi	910	if(EDFSTAR_budget_has_thread(local_scheduler_level,server))
873	trimarchi	911	return FSF_ERR_NOT_CONTRACTED_SERVER;
235	giacomo	912	break;
		913
952	trimarchi	914	case FSF_FP:
235	giacomo	915	/* Check if some thread use the server */
868	trimarchi	916	if(RMSTAR_budget_has_thread(local_scheduler_level,server))
873	trimarchi	917	return FSF_ERR_NOT_CONTRACTED_SERVER;
235	giacomo	918
221	giacomo	919	break;
334	giacomo	920
868	trimarchi	921	case FSF_NONE:
334	giacomo	922	/* Check if some thread use the server */
868	trimarchi	923	if(NONESTAR_budget_has_thread(local_scheduler_level,server))
873	trimarchi	924	return FSF_ERR_NOT_CONTRACTED_SERVER;
334	giacomo	925
		926	break;
		927
221	giacomo	928	}
		929
868	trimarchi	930	SERVER_removebudget(fsf_server_level,server);
221	giacomo	931
		932	level_free_descriptor(local_scheduler_level);
405	trimarchi	933
868	trimarchi	934	remove_contract(server);
411	trimarchi	935
		936	f=kern_fsave();
		937	if (recalculate_contract(fsf_max_bw)==-1) {
		938	kern_frestore(f);
873	trimarchi	939	return FSF_ERR_INTERNAL_ERROR;
411	trimarchi	940	}
		941	#ifdef FSF_DEBUG
		942	kern_printf("(Adjust budget)");
		943	#endif
		944	for (i=0; i<current_server; i++) {
		945	mul32div32to32(MAX_BANDWIDTH,server_list[i].Cmin,server_list[i].U,T);
417	giacomo	946	if (T > server_list[i].Tmin ) {
411	trimarchi	947	server_list[i].actual_budget = server_list[i].Cmin;
		948	server_list[i].actual_period = T;
417	giacomo	949	#ifdef FSF_DEBUG
		950	kern_printf("(1 - Q %ld T %ld)", server_list[i].actual_budget, server_list[i].actual_period);
		951	#endif
661	giacomo	952
908	trimarchi	953	if (server_list[i].d_equals_t == true)
661	giacomo	954	adjust_SERVER_budget(server_list[i].server,server_list[i].Cmin, T, T);
		955	else
		956	adjust_SERVER_budget(server_list[i].server,server_list[i].Cmin, T, server_list[i].deadline);
		957
411	trimarchi	958	} else {
417	giacomo	959	mul32div32to32(server_list[i].Tmin,server_list[i].U,MAX_BANDWIDTH,Q);
411	trimarchi	960	server_list[i].actual_budget = Q;
417	giacomo	961	server_list[i].actual_period = server_list[i].Tmin;
		962	#ifdef FSF_DEBUG
		963	kern_printf("(2 - Q %ld T %ld)", server_list[i].actual_budget, server_list[i].actual_period);
		964	#endif
661	giacomo	965
908	trimarchi	966	if (server_list[i].d_equals_t == true)
661	giacomo	967	adjust_SERVER_budget(server_list[i].server,Q, server_list[i].Tmin, server_list[i].Tmin);
		968	else
		969	adjust_SERVER_budget(server_list[i].server,Q, server_list[i].Tmin, server_list[i].deadline);
		970
411	trimarchi	971	}
416	trimarchi	972	server_list[i].U=server_list[i].Umin;
411	trimarchi	973
		974	}
221	giacomo	975
405	trimarchi	976
411	trimarchi	977	kern_frestore(f);
221	giacomo	978
		979	return 0;
411	trimarchi	980
221	giacomo	981	}
		982
881	trimarchi	983	bandwidth_t SERVER_return_bandwidth() {
		984	int i=0;
		985	bandwidth_t U;
		986	U=0;
		987	for(i=0;i<current_server;i++) {
		988
		989	U+=server_list[i].Umin;
		990
		991	}
		992
		993	return U;
		994	}
		995
405	trimarchi	996	int recalculate_contract(bandwidth_t U) {
416	trimarchi	997	bandwidth_t current_bandwidth;
418	giacomo	998	unsigned int temp_U;
416	trimarchi	999	int Qt;
405	trimarchi	1000	int isok=0;
		1001	int i=0;
868	trimarchi	1002	int target_importance=FSF_DEFAULT_IMPORTANCE;
		1003
		1004	#define MAX_IMPORTANCE 5
405	trimarchi	1005
896	trimarchi	1006	#ifdef FSF_DEBUG
		1007	int temp;
		1008
908	trimarchi	1009	kern_printf("(RC)");
896	trimarchi	1010	#endif
405	trimarchi	1011
		1012	/* The current bandwidth is the min bandwidth */
881	trimarchi	1013	current_bandwidth=SERVER_return_bandwidth(fsf_server_level);
405	trimarchi	1014	#ifdef FSF_DEBUG
908	trimarchi	1015	kern_printf("(SER%d)", current_server);
405	trimarchi	1016	#endif
880	trimarchi	1017	//kern_printf("(CS:%d)", current_server);
405	trimarchi	1018	do {
		1019	current_bandwidth=0;
		1020	Qt=0;
410	trimarchi	1021	for (i=0; i<current_server; i++) {
843	trimarchi	1022	if (server_list[i].Is==target_importance
		1023	&& server_list[i].U<server_list[i].Umax && server_list[i].Qs>0)
405	trimarchi	1024	Qt+=server_list[i].Qs;
416	trimarchi	1025	current_bandwidth+=server_list[i].U;
868	trimarchi	1026	#ifdef FSF_DEBUG
843	trimarchi	1027	kern_printf("(Qs %d, Qt %d, Is %d)", server_list[i].Qs, Qt,server_list[i].Is);
868	trimarchi	1028	#endif
405	trimarchi	1029	}
413	trimarchi	1030
868	trimarchi	1031	#ifdef FSF_DEBUG
908	trimarchi	1032	kern_printf("(TQ%d)", Qt);
868	trimarchi	1033	#endif
405	trimarchi	1034	isok=1;
410	trimarchi	1035	for (i=0; i<current_server; i++) {
843	trimarchi	1036	if (server_list[i].Is==target_importance && server_list[i].U<server_list[i].Umax && server_list[i].Qs>0) {
416	trimarchi	1037	temp_U=server_list[i].U;
		1038	server_list[i].U=U-current_bandwidth;
		1039	mul32div32to32(server_list[i].U, server_list[i].Qs, Qt, server_list[i].U);
		1040	temp_U+=server_list[i].U;
		1041
		1042	if (temp_U<=server_list[i].Umin) {
405	trimarchi	1043	server_list[i].U=server_list[i].Umin;
416	trimarchi	1044	} else if (temp_U>server_list[i].Umax) {
		1045	server_list[i].U=server_list[i].Umax;
405	trimarchi	1046	isok=0;
		1047	} else server_list[i].U=temp_U;
		1048
		1049	#ifdef FSF_DEBUG
		1050	mul32div32to32(server_list[i].U,100, MAX_BANDWIDTH, temp);
908	trimarchi	1051	kern_printf("(SER %d BW %d)", server_list[i].server, temp);
405	trimarchi	1052	#endif
		1053	}
		1054	}
843	trimarchi	1055	target_importance++;
880	trimarchi	1056	} while (!isok \|\| target_importance<=MAX_IMPORTANCE);
		1057	//kern_printf("(RNDNL)");
405	trimarchi	1058	return 0;
		1059	}
		1060
937	trimarchi	1061
		1062	int fsf_negotiate_group
		1063	(const fsf_contracts_group_t *contracts_up,
		1064	const fsf_servers_group_t *severs_down,
		1065	fsf_servers_group_t *severs_up,
		1066	bool *accepted) {
		1067
		1068	return 0;
		1069	}
		1070
221	giacomo	1071	int fsf_renegotiate_contract
		1072	(const fsf_contract_parameters_t *new_contract,
		1073	fsf_server_id_t server)
		1074	{
679	trimarchi	1075
908	trimarchi	1076	struct mess msg;
221	giacomo	1077
679	trimarchi	1078	// send response server is -1 if the operation fail
908	trimarchi	1079	msg.type=RENEGOTIATE_CONTRACT;
		1080	memmove(&msg.contract,new_contract, sizeof(fsf_contract_parameters_t));
		1081	msg.server = server;
		1082	//kern_printf("(REN %d)", server);
		1083	port_send(channel[1],&msg,BLOCK);
221	giacomo	1084
908	trimarchi	1085	port_receive(channel[0], &msg, BLOCK);
859	trimarchi	1086
908	trimarchi	1087	//kern_printf("(REN %d)", msg.server);
		1088	if (msg.server==-1) return FSF_ERR_CONTRACT_REJECTED;
679	trimarchi	1089
405	trimarchi	1090	return 0;
221	giacomo	1091	}
241	giacomo	1092
868	trimarchi	1093	int fsf_request_contract_renegotiation
		1094	(const fsf_contract_parameters_t *new_contract,
		1095	fsf_server_id_t server,
		1096	int sig_notify,
		1097	union sigval sig_value)
		1098	{
		1099
908	trimarchi	1100	struct mess msg;
868	trimarchi	1101
		1102	// send response server is -1 if the operation fail
908	trimarchi	1103	msg.type=REQUEST_RENEGOTIATE_CONTRACT;
		1104	memmove(&msg.contract,new_contract, sizeof(fsf_contract_parameters_t));
		1105	msg.server = server;
910	trimarchi	1106	msg.sig_notify=sig_notify;
		1107	msg.sig_value=sig_value;
		1108	msg.process=exec_shadow;
868	trimarchi	1109
908	trimarchi	1110	port_send(channel[1],&msg,BLOCK);
868	trimarchi	1111
908	trimarchi	1112	port_receive(channel[0], &msg, BLOCK);
868	trimarchi	1113
908	trimarchi	1114	if (msg.server==-1) return FSF_ERR_CONTRACT_REJECTED;
868	trimarchi	1115
		1116	return 0;
		1117	}
		1118
407	giacomo	1119	void print_server_list()
		1120	{
		1121
		1122	int i;
		1123
		1124	kern_printf("Server List\n");
		1125
410	trimarchi	1126	for(i=0;i<current_server;i++) {
407	giacomo	1127
662	giacomo	1128	kern_printf("[%d] Q:%d T:%d D:%d [DeT = %d]\n",server_list[i].server,(int)server_list[i].actual_budget,(int)server_list[i].actual_period,(int)server_list[i].deadline,(int)server_list[i].d_equals_t);
407	giacomo	1129
		1130	}
		1131
		1132	}
808	trimarchi	1133
		1134
		1135	int fsf_get_remain_budget(fsf_server_id_t server) {
		1136
825	trimarchi	1137	return SERVER_get_remain_capacity(fsf_server_level, server);
808	trimarchi	1138	}
868	trimarchi	1139
		1140	int fsf_get_budget_and_period
		1141	(fsf_server_id_t server,
		1142	struct timespec *budget,
		1143	struct timespec *period) {
		1144	TIME bg;
		1145	TIME pd;
		1146
		1147	if (!SERVER_getbudgetinfo(fsf_server_level, &bg, &pd, NULL, server)) {
		1148	if (budget) {
		1149	NULL_TIMESPEC(budget);
		1150	ADDUSEC2TIMESPEC(bg, budget);
		1151	}
		1152	if (period) {
		1153	NULL_TIMESPEC(period);
		1154	ADDUSEC2TIMESPEC(pd, period);
		1155	}
		1156
		1157	return 0;
		1158	}
		1159	return FSF_ERR_BAD_ARGUMENT;
		1160	}
		1161
		1162	int
		1163	fsf_set_service_thread_data
		1164	(const struct timespec *budget,
		1165	const struct timespec *period,
		1166	bool *accepted) {
		1167
		1168	if (budget==NULL && period==NULL) return FSF_ERR_BAD_ARGUMENT;
		1169	fsf_set_contract_basic_parameters(&service_contract,budget,period,FSF_DEFAULT_WORKLOAD);
		1170	*accepted = !fsf_renegotiate_contract(&service_contract,service_server)?true:false;
		1171	return 0;
		1172
		1173	}
		1174
		1175
		1176
		1177	int fsf_get_service_thread_data
		1178	(struct timespec *budget,
		1179	struct timespec *period) {
		1180
		1181	return fsf_get_budget_and_period(service_server, budget, period);
		1182
		1183	}
944	trimarchi	1184
		1185	int fsf_init_local_scheduler(fsf_server_id_t server,
		1186	fsf_sched_init_info_t info) {
		1187	int scheduler_id, local_scheduler_level;
		1188
		1189	struct timespec duration=(struct timespec )info;
		1190
		1191	local_scheduler_level=SERVER_get_local_scheduler_level_from_budget(fsf_server_level, server);
		1192	scheduler_id = SERVER_get_local_scheduler_id_from_budget(fsf_server_level,server);
		1193
		1194	if (scheduler_id!=FSF_TABLE_DRIVEN)
		1195	return FSF_ERR_SCHED_POLICY_NOT_COMPATIBLE;
		1196
		1197	if (duration->tv_sec < 0 \|\| duration->tv_nsec > 1000000000)
		1198	return FSF_ERR_BAD_ARGUMENT;
		1199
		1200	//TDSTAR_debugtable(local_scheduler_level);
		1201	TDSTAR_start_simulation(local_scheduler_level);
		1202	return 0;
		1203
		1204	}

Subversion Repositories shark

(root)/shark/tags/rel_1_5_4/ports/first/first-server.c @ 1083 - Rev 952