model-net-lp.c 21 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11
/*
 * Copyright (C) 2014 University of Chicago.
 * See COPYRIGHT notice in top-level directory.
 *
 */

#include <stddef.h>
#include <assert.h>
#include "codes/model-net.h"
#include "codes/model-net-method.h"
#include "codes/model-net-lp.h"
12
#include "codes/model-net-sched.h"
13 14 15 16 17 18 19 20 21 22 23 24 25
#include "codes/codes_mapping.h"
#include "codes/jenkins-hash.h"

#define MN_NAME "model_net_base"

/**** BEGIN SIMULATION DATA STRUCTURES ****/

int model_net_base_magic;

// message-type specific offsets - don't want to get bitten later by alignment
// issues...
static int msg_offsets[MAX_NETS];

26 27
typedef struct model_net_base_params_s {
    model_net_sched_cfg_params sched_params;
28
    uint64_t packet_size;
29
    int use_recv_queue;
30 31 32 33 34 35 36 37
} model_net_base_params;

/* annotation-specific parameters (unannotated entry occurs at the 
 * last index) */
static int                       num_params = 0;
static const char              * annos[CONFIGURATION_MAX_ANNOS];
static model_net_base_params     all_params[CONFIGURATION_MAX_ANNOS];

38 39 40
static tw_stime mn_sample_interval = 0.0;
static int mn_sample_enabled = 0;

41 42
typedef struct model_net_base_state {
    int net_id;
43
    // whether scheduler loop is running
44
    int in_sched_send_loop, in_sched_recv_loop;
45 46 47
    // unique message id counter. This doesn't get decremented on RC to prevent
    // optimistic orderings using "stale" ids
    uint64_t msg_id;
48 49
    // model-net schedulers
    model_net_sched *sched_send, *sched_recv;
50 51
    // parameters
    const model_net_base_params * params;
52 53 54 55 56 57
    // lp type and state of underlying model net method - cache here so we
    // don't have to constantly look up
    const tw_lptype *sub_type;
    void *sub_state;
} model_net_base_state;

58

59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104
/**** END SIMULATION DATA STRUCTURES ****/

/**** BEGIN LP, EVENT PROCESSING FUNCTION DECLS ****/

/* ROSS LP processing functions */  
static void model_net_base_lp_init(
        model_net_base_state * ns,
        tw_lp * lp);
static void model_net_base_event(
        model_net_base_state * ns,
        tw_bf * b,
        model_net_wrap_msg * m,
        tw_lp * lp);
static void model_net_base_event_rc(
        model_net_base_state * ns,
        tw_bf * b,
        model_net_wrap_msg * m,
        tw_lp * lp);
static void model_net_base_finalize(
        model_net_base_state * ns,
        tw_lp * lp);

/* event type handlers */
static void handle_new_msg(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp);
static void handle_sched_next(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp);
static void handle_new_msg_rc(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp);
static void handle_sched_next_rc(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp);

/* ROSS function pointer table for this LP */
tw_lptype model_net_base_lp = {
105 106 107 108 109 110 111
    (init_f) model_net_base_lp_init,
    (pre_run_f) NULL,
    (event_f) model_net_base_event,
    (revent_f) model_net_base_event_rc,
    (final_f)  model_net_base_finalize, 
    (map_f) codes_mapping,
    sizeof(model_net_base_state),
112 113 114 115 116 117
};

/**** END LP, EVENT PROCESSING FUNCTION DECLS ****/

/**** BEGIN IMPLEMENTATIONS ****/

118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137
void model_net_enable_sampling(tw_stime interval)
{
    mn_sample_interval = interval;
    mn_sample_enabled = 1;
}

int model_net_sampling_enabled(void)
{
    return mn_sample_enabled;
}

// schedule sample event - want to be precise, so no noise here
static void issue_sample_event(tw_lp *lp)
{
    tw_event *e = tw_event_new(lp->gid, mn_sample_interval, lp);
    model_net_wrap_msg *m = tw_event_data(e);
    msg_set_header(model_net_base_magic, MN_BASE_SAMPLE, lp->gid, &m->h);
    tw_event_send(e);
}

138 139 140 141
void model_net_base_register(int *do_config_nets){
    // here, we initialize ALL lp types to use the base type
    for (int i = 0; i < MAX_NETS; i++){
        if (do_config_nets[i]){
142 143 144 145 146 147 148
            // some model-net lps need custom registration hooks (dragonfly).
            // Those that don't NULL out the reg. function
            if (method_array[i]->mn_register == NULL)
                lp_type_register(model_net_lp_config_names[i],
                        &model_net_base_lp);
            else
                method_array[i]->mn_register(&model_net_base_lp);
149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168
        }
    }
}

static void base_read_config(const char * anno, model_net_base_params *p){
    char sched[MAX_NAME_LENGTH];
    long int packet_size_l = 0;
    uint64_t packet_size;
    int ret;

    ret = configuration_get_value(&config, "PARAMS", "modelnet_scheduler",
            anno, sched, MAX_NAME_LENGTH);
    configuration_get_value_longint(&config, "PARAMS", "packet_size", anno,
            &packet_size_l);
    packet_size = packet_size_l;

    if (ret > 0){
        int i;
        for (i = 0; i < MAX_SCHEDS; i++){
            if (strcmp(sched_names[i], sched) == 0){
169
                p->sched_params.type = i;
170 171 172 173 174
                break;
            }
        }
        if (i == MAX_SCHEDS){
            tw_error(TW_LOC,"Unknown value for PARAMS:modelnet-scheduler : "
175
                    "%s", sched); 
176 177 178 179
        }
    }
    else{
        // default: FCFS
180
        p->sched_params.type = MN_SCHED_FCFS;
181 182
    }

183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215
    // get scheduler-specific parameters
    if (p->sched_params.type == MN_SCHED_PRIO){
        // prio scheduler uses default parameters 
        int             * num_prios = &p->sched_params.u.prio.num_prios;
        enum sched_type * sub_stype = &p->sched_params.u.prio.sub_stype;
        // number of priorities to allocate
        ret = configuration_get_value_int(&config, "PARAMS",
                "prio-sched-num-prios", anno, num_prios);
        if (ret != 0)
            *num_prios = 10;

        ret = configuration_get_value(&config, "PARAMS",
                "prio-sched-sub-sched", anno, sched, MAX_NAME_LENGTH);
        if (ret == 0)
            *sub_stype = MN_SCHED_FCFS;
        else{
            int i;
            for (i = 0; i < MAX_SCHEDS; i++){
                if (strcmp(sched_names[i], sched) == 0){
                    *sub_stype = i;
                    break;
                }
            }
            if (i == MAX_SCHEDS){
                tw_error(TW_LOC, "Unknown value for "
                        "PARAMS:prio-sched-sub-sched %s", sched);
            }
            else if (i == MN_SCHED_PRIO){
                tw_error(TW_LOC, "priority scheduler cannot be used as a "
                        "priority scheduler's sub sched "
                        "(PARAMS:prio-sched-sub-sched)");
            }
        }
216 217
    }

218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234
    if (p->sched_params.type == MN_SCHED_FCFS_FULL ||
            (p->sched_params.type == MN_SCHED_PRIO &&
             p->sched_params.u.prio.sub_stype == MN_SCHED_FCFS_FULL)){
        // override packet size to something huge (leave a bit in the unlikely
        // case that an op using packet size causes overflow)
        packet_size = 1ull << 62;
    }
    else if (!packet_size &&
            (p->sched_params.type != MN_SCHED_FCFS_FULL ||
             (p->sched_params.type == MN_SCHED_PRIO &&
              p->sched_params.u.prio.sub_stype != MN_SCHED_FCFS_FULL))){
        packet_size = 512;
        fprintf(stderr, "WARNING, no packet size specified, setting packet "
                "size to %llu\n", packet_size);
    }


235 236 237 238
    p->packet_size = packet_size;
}

void model_net_base_configure(){
239 240 241 242 243
    uint32_t h1=0, h2=0;

    bj_hashlittle2(MN_NAME, strlen(MN_NAME), &h1, &h2);
    model_net_base_magic = h1+h2;

244 245 246
    // set up offsets - doesn't matter if they are actually used or not
    msg_offsets[SIMPLENET] =
        offsetof(model_net_wrap_msg, msg.m_snet);
Jonathan Jenkins's avatar
Jonathan Jenkins committed
247 248
    msg_offsets[SIMPLEP2P] =
        offsetof(model_net_wrap_msg, msg.m_sp2p);
249 250 251 252 253 254
    msg_offsets[TORUS] =
        offsetof(model_net_wrap_msg, msg.m_torus);
    msg_offsets[DRAGONFLY] =
        offsetof(model_net_wrap_msg, msg.m_dfly);
    msg_offsets[LOGGP] =
        offsetof(model_net_wrap_msg, msg.m_loggp);
255

256 257 258 259 260 261 262 263 264 265
    // perform the configuration(s)
    // This part is tricky, as we basically have to look up all annotations that
    // have LP names of the form modelnet_*. For each of those, we need to read
    // the base parameters
    // - the init is a little easier as we can use the LP-id to look up the
    // annotation

    // first grab all of the annotations and store locally
    for (int c = 0; c < lpconf.lpannos_count; c++){
        const config_anno_map_t *amap = &lpconf.lpannos[c];
266
        if (strncmp("modelnet_", amap->lp_name.ptr, 9) == 0){
267 268 269
            for (int n = 0; n < amap->num_annos; n++){
                int a;
                for (a = 0; a < num_params; a++){
270 271
                    if (annos[a] != NULL && amap->annotations[n].ptr != NULL &&
                            strcmp(amap->annotations[n].ptr, annos[a]) == 0){
272 273 274 275 276
                        break;
                    }
                }
                if (a == num_params){
                    // found a new annotation
277
                    annos[num_params++] = amap->annotations[n].ptr;
278 279 280 281 282 283 284 285 286 287 288 289 290
                }
            }
            if (amap->has_unanno_lp){
                int a;
                for (a = 0; a < num_params; a++){
                    if (annos[a] == NULL)
                        break;
                }
                if (a == num_params){
                    // found a new (empty) annotation
                    annos[num_params++] = NULL;
                }
            }
291 292
        }
    }
293 294 295 296 297 298

    // now that we have all of the annos for all of the networks, loop through
    // and read the configs
    for (int i = 0; i < num_params; i++){
        base_read_config(annos[i], &all_params[i]);
    }
299 300 301 302 303 304
}

void model_net_base_lp_init(
        model_net_base_state * ns,
        tw_lp * lp){
    // obtain the underlying lp type through codes-mapping
305
    char lp_type_name[MAX_NAME_LENGTH], anno[MAX_NAME_LENGTH];
306 307 308
    int dummy;

    codes_mapping_get_lp_info(lp->gid, NULL, &dummy, 
309 310
            lp_type_name, &dummy, anno, &dummy, &dummy);

311 312
    ns->msg_id = 0;

313 314 315 316 317 318 319 320
    // get annotation-specific parameters
    for (int i = 0; i < num_params; i++){
        if ((anno[0]=='\0' && annos[i] == NULL) ||
                strcmp(anno, annos[i]) == 0){
            ns->params = &all_params[i];
            break;
        }
    }
321 322 323 324 325 326 327 328 329

    // find the corresponding method name / index
    for (int i = 0; i < MAX_NETS; i++){
        if (strcmp(model_net_lp_config_names[i], lp_type_name) == 0){
            ns->net_id = i;
            break;
        }
    }

330 331 332 333 334 335 336
    ns->sched_send = malloc(sizeof(model_net_sched));
    ns->sched_recv = malloc(sizeof(model_net_sched));
    // init both the sender queue and the 'receiver' queue 
    model_net_sched_init(&ns->params->sched_params, 0, method_array[ns->net_id],
            ns->sched_send);
    model_net_sched_init(&ns->params->sched_params, 1, method_array[ns->net_id],
            ns->sched_recv);
337

338 339 340 341 342 343 344
    ns->sub_type = model_net_get_lp_type(ns->net_id);
    // NOTE: some models actually expect LP state to be 0 initialized...
    // *cough anything that uses mn_stats_array cough*
    ns->sub_state = calloc(1, ns->sub_type->state_sz);

    // initialize the model-net method
    ns->sub_type->init(ns->sub_state, lp);
345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366

    // check validity of sampling function
    event_f  sample  = method_array[ns->net_id]->mn_sample_fn;
    revent_f rsample = method_array[ns->net_id]->mn_sample_rc_fn;
    if (model_net_sampling_enabled()) {
        if (sample == NULL) {
            tw_error(TW_LOC,
                    "Sampling requested for a model that doesn't provide it\n");
        }
        else if (rsample == NULL &&
                (g_tw_synchronization_protocol == OPTIMISTIC ||
                 g_tw_synchronization_protocol == OPTIMISTIC_DEBUG)) {
            tw_error(TW_LOC,
                    "Sampling requested for a model that doesn't provide it\n");
        }
        else {
            init_f sinit = method_array[ns->net_id]->mn_sample_init_fn;
            if (sinit != NULL)
                sinit(ns->sub_state, lp);
            issue_sample_event(lp);
        }
    }
367 368 369 370 371 372 373
}

void model_net_base_event(
        model_net_base_state * ns,
        tw_bf * b,
        model_net_wrap_msg * m,
        tw_lp * lp){
374
    assert(m->h.magic == model_net_base_magic);
375 376

    void * sub_msg;
377
    switch (m->h.event_type){
378 379 380 381 382 383
        case MN_BASE_NEW_MSG:
            handle_new_msg(ns, b, m, lp);
            break;
        case MN_BASE_SCHED_NEXT:
            handle_sched_next(ns, b, m, lp);
            break;
384 385 386 387 388 389 390
        case MN_BASE_SAMPLE: ;
            event_f sample = method_array[ns->net_id]->mn_sample_fn;
            assert(model_net_sampling_enabled() && sample != NULL);
            sub_msg = ((char*)m)+msg_offsets[ns->net_id];
            sample(ns->sub_state, b, sub_msg, lp);
            issue_sample_event(lp);
            break;
391
        case MN_BASE_PASS: ;
392
            sub_msg = ((char*)m)+msg_offsets[ns->net_id];
393 394 395 396 397 398 399 400 401 402 403 404 405 406
            ns->sub_type->event(ns->sub_state, b, sub_msg, lp);
            break;
        /* ... */
        default:
            assert(!"model_net_base event type not known");
            break;
    }
}

void model_net_base_event_rc(
        model_net_base_state * ns,
        tw_bf * b,
        model_net_wrap_msg * m,
        tw_lp * lp){
407
    assert(m->h.magic == model_net_base_magic);
408 409

    void * sub_msg;
410
    switch (m->h.event_type){
411 412 413 414 415 416
        case MN_BASE_NEW_MSG:
            handle_new_msg_rc(ns, b, m, lp);
            break;
        case MN_BASE_SCHED_NEXT:
            handle_sched_next_rc(ns, b, m, lp);
            break;
417 418 419 420 421 422
        case MN_BASE_SAMPLE: ;
            revent_f sample_rc = method_array[ns->net_id]->mn_sample_rc_fn;
            assert(model_net_sampling_enabled() && sample_rc != NULL);
            sub_msg = ((char*)m)+msg_offsets[ns->net_id];
            sample_rc(ns->sub_state, b, sub_msg, lp);
            break;
423
        case MN_BASE_PASS: ;
424
            sub_msg = ((char*)m)+msg_offsets[ns->net_id];
425 426 427 428 429 430 431 432 433 434 435 436
            ns->sub_type->revent(ns->sub_state, b, sub_msg, lp);
            break;
        /* ... */
        default:
            assert(!"model_net_base event type not known");
            break;
    }
}

void model_net_base_finalize(
        model_net_base_state * ns,
        tw_lp * lp){
437 438 439
    final_f sfini = method_array[ns->net_id]->mn_sample_fini_fn;
    if (sfini != NULL)
        sfini(ns->sub_state, lp);
440 441 442 443
    ns->sub_type->final(ns->sub_state, lp);
    free(ns->sub_state);
}

444
/// bitfields used:
445
/// c31 - we initiated a sched_next event
446 447 448 449 450
void handle_new_msg(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp){
451
    // simply pass down to the scheduler
452
    model_net_request *r = &m->msg.m_base.req;
453 454
    // don't forget to set packet size, now that we're responsible for it!
    r->packet_size = ns->params->packet_size;
455
    r->msg_id = ns->msg_id++;
456 457
    void * m_data = m+1;
    void *remote = NULL, *local = NULL;
458
    if (r->remote_event_size > 0){
459 460
        remote = m_data;
        m_data = (char*)m_data + r->remote_event_size;
461 462
    }
    if (r->self_event_size > 0){
463
        local = m_data;
464
    }
465
    
466
    // set message-specific params
467 468 469 470 471 472
    int is_from_remote = m->msg.m_base.is_from_remote;
    model_net_sched *ss = is_from_remote ? ns->sched_recv : ns->sched_send;
    int *in_sched_loop = is_from_remote  ? 
        &ns->in_sched_recv_loop : &ns->in_sched_send_loop;
    model_net_sched_add(r, &m->msg.m_base.sched_params, r->remote_event_size,
            remote, r->self_event_size, local, ss, &m->msg.m_base.rc, lp);
473
    
474
    if (*in_sched_loop == 0){
475 476
        b->c31 = 1;
        /* No need to issue an extra sched-next event if we're currently idle */
477
        *in_sched_loop = 1;
478 479 480 481 482
        /* NOTE: we can do this because the sched rc struct in the event is
         * *very* lightly used (there's harmless overlap in usage for the
         * priority scheduler) */
        handle_sched_next(ns, b, m, lp);
        assert(*in_sched_loop); // we shouldn't have fallen out of the loop
483 484
    }
}
485 486 487

void handle_new_msg_rc(
        model_net_base_state *ns,
488
        tw_bf *b,
489 490
        model_net_wrap_msg *m,
        tw_lp *lp){
491 492 493 494 495
    int is_from_remote = m->msg.m_base.is_from_remote;
    model_net_sched *ss = is_from_remote ? ns->sched_recv : ns->sched_send;
    int *in_sched_loop = is_from_remote  ? 
        &ns->in_sched_recv_loop : &ns->in_sched_send_loop;

496 497
    if (b->c31) {
        handle_sched_next_rc(ns, b, m, lp);
498
        *in_sched_loop = 0;
499
    }
500
    model_net_sched_add_rc(ss, &m->msg.m_base.rc, lp);
501
}
502 503 504 505

/// bitfields used
/// c0 - scheduler loop is finished
void handle_sched_next(
506 507 508 509
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp){
510
    tw_stime poffset;
511 512 513 514 515
    int is_from_remote = m->msg.m_base.is_from_remote;
    model_net_sched * ss = is_from_remote ? ns->sched_recv : ns->sched_send;
    int *in_sched_loop = is_from_remote ?
        &ns->in_sched_recv_loop : &ns->in_sched_send_loop;
    int ret = model_net_sched_next(&poffset, ss, m+1, &m->msg.m_base.rc, lp);
516 517 518 519
    // we only need to know whether scheduling is finished or not - if not,
    // go to the 'next iteration' of the loop
    if (ret == -1){
        b->c0 = 1;
520
        *in_sched_loop = 0;
521
    }
522 523 524
    // Currently, only a subset of the network implementations use the
    // callback-based scheduling loop (model_net_method_idle_event).
    // For all others, we need to schedule the next packet
525
    // immediately
Jonathan Jenkins's avatar
Jonathan Jenkins committed
526
    else if (ns->net_id == SIMPLEP2P || ns->net_id == TORUS){
527
        tw_event *e = tw_event_new(lp->gid, 
528
                poffset+codes_local_latency(lp), lp);
529
        model_net_wrap_msg *m_wrap = tw_event_data(e);
530
        msg_set_header(model_net_base_magic, MN_BASE_SCHED_NEXT, lp->gid,
531 532
                &m_wrap->h);
        m_wrap->msg.m_base.is_from_remote = is_from_remote;
533 534
        // no need to set m_base here
        tw_event_send(e);
535 536
    }
}
537

538 539 540 541 542
void handle_sched_next_rc(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp){
543 544 545 546
    int is_from_remote = m->msg.m_base.is_from_remote;
    model_net_sched * ss = is_from_remote ? ns->sched_recv : ns->sched_send;
    int *in_sched_loop = is_from_remote ?
        &ns->in_sched_recv_loop : &ns->in_sched_send_loop;
547

548
    model_net_sched_next_rc(ss, m+1, &m->msg.m_base.rc, lp);
549
    if (b->c0){
550
        *in_sched_loop = 1;
551
    }
Jonathan Jenkins's avatar
Jonathan Jenkins committed
552
    else if (ns->net_id == SIMPLEP2P || ns->net_id == TORUS){
553 554
        codes_local_latency_reverse(lp);
    }
555 556 557 558 559 560 561 562 563 564 565 566 567
}

/**** END IMPLEMENTATIONS ****/

tw_event * model_net_method_event_new(
        tw_lpid dest_gid,
        tw_stime offset_ts,
        tw_lp *sender,
        int net_id,
        void **msg_data,
        void **extra_data){
    tw_event *e = tw_event_new(dest_gid, offset_ts, sender);
    model_net_wrap_msg *m_wrap = tw_event_data(e);
568 569
    msg_set_header(model_net_base_magic, MN_BASE_PASS, sender->gid,
            &m_wrap->h);
570 571 572 573 574 575 576 577
    *msg_data = ((char*)m_wrap)+msg_offsets[net_id];
    // extra_data is optional
    if (extra_data != NULL){
        *extra_data = m_wrap + 1;
    }
    return e;
}

578 579 580 581 582 583 584 585 586 587 588 589
void model_net_method_send_msg_recv_event(
        tw_lpid final_dest_lp,
        tw_lpid dest_mn_lp,
        tw_lpid src_lp, // the "actual" source (as opposed to the model net lp)
        uint64_t msg_size,
        int is_pull,
        uint64_t pull_size,
        int remote_event_size,
        const mn_sched_params *sched_params,
        const char * category,
        int net_id,
        void * msg,
590
        tw_stime offset,
591 592
        tw_lp *sender){
    tw_event *e = 
593
        tw_event_new(dest_mn_lp, offset+codes_local_latency(sender), sender);
594 595 596 597 598 599 600 601
    model_net_wrap_msg *m = tw_event_data(e);
    msg_set_header(model_net_base_magic, MN_BASE_NEW_MSG, sender->gid, &m->h);

    if (sched_params != NULL)
        m->msg.m_base.sched_params = *sched_params;
    else
        model_net_sched_set_default_params(&m->msg.m_base.sched_params);

602 603 604
    model_net_request *r = &m->msg.m_base.req;
    r->final_dest_lp = final_dest_lp;
    r->src_lp = src_lp;
605
    // for "recv" events, set the "dest" to this LP in the case of a pull event
606 607 608 609 610 611 612 613 614
    r->dest_mn_lp = sender->gid;
    r->pull_size = pull_size;
    r->msg_size = msg_size;
    // TODO: document why we're setting packet_size this way
    r->packet_size = msg_size;
    r->net_id = net_id;
    r->is_pull = is_pull;
    r->remote_event_size = remote_event_size;
    r->self_event_size = 0;
615 616
    m->msg.m_base.is_from_remote = 1;

617 618
    strncpy(r->category, category, CATEGORY_NAME_MAX-1);
    r->category[CATEGORY_NAME_MAX-1] = '\0';
619 620 621 622 623 624 625 626 627

    if (remote_event_size > 0){
        void * m_dat = model_net_method_get_edata(net_id, msg);
        memcpy(m+1, m_dat, remote_event_size);
    }

    tw_event_send(e);
}

Jonathan Jenkins's avatar
Jonathan Jenkins committed
628 629 630 631
void model_net_method_send_msg_recv_event_rc(tw_lp *sender){
    codes_local_latency_reverse(sender);
}

632 633 634

void model_net_method_idle_event(tw_stime offset_ts, int is_recv_queue,
        tw_lp * lp){
635 636
    tw_event *e = tw_event_new(lp->gid, offset_ts, lp);
    model_net_wrap_msg *m_wrap = tw_event_data(e);
637 638
    msg_set_header(model_net_base_magic, MN_BASE_SCHED_NEXT, lp->gid,
            &m_wrap->h);
639
    m_wrap->msg.m_base.is_from_remote = is_recv_queue;
640 641 642
    tw_event_send(e);
}

643 644 645 646 647 648 649 650 651 652 653 654
void * model_net_method_get_edata(int net_id, void *msg){
    return (char*)msg + sizeof(model_net_wrap_msg) - msg_offsets[net_id];
}

/*
 * Local variables:
 *  c-indent-level: 4
 *  c-basic-offset: 4
 * End:
 *
 * vim: ft=c ts=8 sts=4 sw=4 expandtab
 */