void
phold_init(phold_state * s, tw_lp * lp)
{
int i;
if( stagger )
{
for (i = 0; i < g_phold_start_events; i++)
{
tw_event_send(
tw_event_new(lp->gid,
tw_rand_exponential(lp->rng, mean) + lookahead + (tw_stime)(lp->gid % (unsigned int)g_tw_ts_end),
lp));
}
}
else
{
for (i = 0; i < g_phold_start_events; i++)
{
tw_event_send(
tw_event_new(lp->gid,
tw_rand_exponential(lp->rng, mean) + lookahead,
lp));
}
}
}
void traffic_light_intersection_startup(intersection_state* SV, tw_lp* LP) {
tw_stime ts = 0;
tw_event* current_event;
message_data* new_message;
// Initialize the total number of cars arrived:
SV->total_cars_arrived = 0;
SV->total_cars_finished = 0;
// Initialize the number of cars arriving into the intersection:
SV->num_cars_south = 0;
SV->num_cars_west = 0;
SV->num_cars_north = 0;
SV->num_cars_east = 0;
SV->num_cars_south_left = 0;
SV->num_cars_west_left = 0;
SV->num_cars_north_left = 0;
SV->num_cars_east_left = 0;
SV->north_south_green_until = -1;
SV->north_south_left_green_until = -1;
SV->east_west_green_until = -1;
SV->east_west_left_green_until = -1;
// Initialize a random direction to be green
SV->traffic_direction = tw_rand_ulong(LP->rng, NORTH_SOUTH, EAST_WEST_LEFT);
// Schedule the first light change
current_event = tw_event_new(LP->gid, ts, LP);
new_message = (message_data*)tw_event_data(current_event);
new_message->event_type = LIGHT_CHANGE;
tw_event_send(current_event);
// Put cars on the road
int i;
for(i = 0; i < g_traffic_start_events; i++) {
// Arrival time
ts = tw_rand_exponential(LP->rng, INITIAL_ARRIVAL_MEAN);
current_event = tw_event_new(LP->gid, ts, LP);
new_message = (message_data*)tw_event_data(current_event);
new_message->event_type = CAR_ARRIVES;
assign_rand_dest:
new_message->car.x_to_go = tw_rand_integer(LP->rng, -MAX_TRAVEL_DISTANCE, MAX_TRAVEL_DISTANCE);
new_message->car.y_to_go = tw_rand_integer(LP->rng, -MAX_TRAVEL_DISTANCE, MAX_TRAVEL_DISTANCE);
new_message->car.x_to_go_original = new_message->car.x_to_go;
new_message->car.y_to_go_original = new_message->car.y_to_go;
if (new_message->car.y_to_go == 0)
new_message->car.has_turned = 1;
else
new_message->car.has_turned = 0;
new_message->car.start_time = tw_now(LP);
tw_event_send(current_event);
}
}
void Airport_EventHandler(Airport_State *SV, tw_bf *CV, Msg_Data *M,
tw_lp *lp) {
tw_stime ts;
tw_event *CurEvent;
Msg_Data *NewM;
*(int *)CV = (int)0;
switch(M->event_type) {
case ARRIVAL:
// Schedule a landing in the future
SV->InTheAir++;
if((CV->c1 = (SV->RunwayFree == 1))){
SV->RunwayFree = 0;
ts = tw_rand_exponential(lp->id, R);
CurEvent = tw_event_new(lp, ts, lp);
NewM = (Msg_Data *)tw_event_data(CurEvent);
NewM->event_type = LAND;
tw_event_send(CurEvent);
}
break;
case LAND:
SV->InTheAir--;
SV->OnTheGround++;
SV->NumLanded++;
ts = tw_rand_exponential(lp->id, G);
CurEvent = tw_event_new(lp, ts, lp);
NewM = (Msg_Data *)tw_event_data(CurEvent);
NewM->event_type = DEPARTURE;
tw_event_send(CurEvent);
if ((CV->c1 = (SV->InTheAir > 0))){
ts = tw_rand_exponential(lp->id, R);
CurEvent = tw_event_new(lp, ts, lp);
NewM = (Msg_Data *)tw_event_data(CurEvent);
NewM->event_type = LAND;
tw_event_send(CurEvent);
}
else
SV->RunwayFree = 1;
break;
case DEPARTURE:
SV->OnTheGround--;
ts = tw_rand_exponential(lp->id, A);
CurEvent = tw_event_new(tw_getlp((lp->id + 1) % 3) , ts, lp);
NewM = (Msg_Data *) tw_event_data(CurEvent);
NewM->event_type = ARRIVAL;
tw_event_send(CurEvent);
break;
}
}
void
mem_init(mem_state * s, tw_lp * lp)
{
tw_event *e;
tw_memory *b;
int i;
for (i = 0; i < g_mem_start_events; i++)
{
e = tw_event_new(lp->gid, tw_rand_exponential(lp->rng, mean), lp);
for(i = 0; i < nbufs; i++)
{
b = mem_alloc(lp);
mem_fill(b);
tw_event_memory_set(e, b, my_fd);
s->stats.s_mem_alloc++;
}
tw_event_send(e);
s->stats.s_sent++;
}
}
int ForwardPacket (tw_lp * srcLp, tw_lp * dstLp, Packet * p, tw_stime t)
{
tw_event * e;
EventMsg * em;
double now = tw_now (dstLp);
if (t + now >= g_tw_ts_end) return 0; /* Otherwise the program will exit when
* creating event */
#ifdef DEBUG_PKT_FWD
printf ("%lf : pkt(%d:%lu) from %d to %d (in-port %d) at %lf\n",
tw_now (srcLp), _addrToIdx[p->srcAddr_],
p->od_.sqn_, srcLp->id, dstLp->id, p->inPort_, now + t);
fflush (stdout);
#endif
if ((e = tw_event_new (dstLp, t, dstLp)) == NULL) {
printf ("Failed to create event for packet.\n");
tw_exit (-1);
}
(em = (EventMsg *) tw_event_data (e))->type_ = DATA_PKT;
memcpy ((void *) &(em->content_.pkt_), (void *) p, sizeof (Packet));
tw_event_send (e);
return 1;
}
/*Sends a 8-byte credit back to the torus node LP that sent the message */
void
credit_send( nodes_state * s,
tw_bf * bf,
tw_lp * lp,
nodes_message * msg)
{
//if(lp->gid == TRACK_LP)
// printf("\n (%lf) sending credit tmp_dir %d tmp_dim %d %lf ", tw_now(lp), msg->source_direction, msg->source_dim, credit_delay );
tw_event * buf_e;
nodes_message *m;
tw_stime ts;
int src_dir = msg->source_direction;
int src_dim = msg->source_dim;
msg->saved_available_time = s->next_credit_available_time[(2 * src_dim) + src_dir][0];
s->next_credit_available_time[(2 * src_dim) + src_dir][0] = max(s->next_credit_available_time[(2 * src_dim) + src_dir][0], tw_now(lp));
ts = credit_delay + tw_rand_exponential(lp->rng, credit_delay/1000);
s->next_credit_available_time[(2 * src_dim) + src_dir][0] += ts;
buf_e = tw_event_new( msg->sender_lp, s->next_credit_available_time[(2 * src_dim) + src_dir][0] - tw_now(lp), lp);
m = tw_event_data(buf_e);
m->source_direction = msg->source_direction;
m->source_dim = msg->source_dim;
m->type = CREDIT;
tw_event_send( buf_e );
}
void packet_buffer_process( nodes_state * s, tw_bf * bf, nodes_message * msg, tw_lp * lp )
{
msg->wait_loc = -1;
s->buffer[ msg->source_direction + ( msg->source_dim * 2 ) ][ 0 ]-=1;
tw_event * e_h;
nodes_message * m;
tw_stime ts;
bf->c3 = 0;
int loc=s->wait_count, j=0;
for(j = 0; j < loc; j++)
{
if( s->waiting_list[j].dim == msg->source_dim && s->waiting_list[j].dir == msg->source_direction)
{
bf->c3=1;
ts = tw_rand_exponential(lp->rng, MEAN_INTERVAL/100);
e_h = tw_event_new( lp->gid, ts, lp );
m = tw_event_data( e_h );
memcpy(m, s->waiting_list[j].packet, sizeof(nodes_message));
// For reverse computation, also copy data to the msg
memcpy(msg, s->waiting_list[j].packet, sizeof(nodes_message));
msg->wait_loc = j;
msg->type = CREDIT;
m->type = SEND;
tw_event_send(e_h);
waiting_packet_free(s, j);
break;
}
}
}
/*
* Create and send new boundary particle
*/
tw_event *
rm_particle_send(tw_lpid gid, tw_stime offset, tw_lp * src_lp)
{
tw_event *e;
//tw_memory *b;
rm_message *m;
//rm_particle *p;
//printf("%ld: sending particle to cell %ld \n", src_lp->id, gid);
if(gid == 0)
tw_error(TW_LOC, "here");
e = tw_event_new(gid, offset, src_lp);
m = tw_event_data(e);
m->type = RM_PARTICLE;
#if DWB
b = tw_memory_alloc(src_lp, g_rm_fd);
tw_event_memory_set(e, b, g_rm_fd);
p = tw_memory_data(b);
p->user_lp = src_lp;
#endif
tw_event_send(e);
return e;
}
void
torus_init(nodes_state * s, tw_lp * lp)
{
tw_event *e;
tw_stime ts;
nodes_message *m;
/*
* Set up the initial state for each LP (node)
* according to the number of dimensions
*/
torus_setup(s, lp);
/*
* Start a GENERATE event on each LP
*/
//ts = tw_rand_exponential(lp->rng, MEAN_INTERVAL);
ts = tw_rand_exponential(lp->rng, 10);
int i;
for(i=0;i<N_nodes;i++)
{
e = tw_event_new(lp->gid, ts, lp);
m = tw_event_data(e);
m->type = GENERATE;
m->next_stop = i;
m->dest_lp = lp->gid;
tw_event_send(e);
}
}
void event_handler(ping_pong_state * s, tw_bf * bf, ping_pong_message * in_m, tw_lp * lp)
{
tw_stime ts;
tw_event *e;
ping_pong_message *m;
int dest=0;
ts=1;
// if(g_tw_mynode == 0)
if(lp->gid == 0)
{
dest = 1;
}
// else if (g_tw_mynode == 1)
else if (lp->gid == 1)
{
dest = 0;
}
else
{
cout<<"invalid core number"<<endl;
assert(false);
}
e = tw_event_new(dest, ts, lp);
m = (ping_pong_message *)tw_event_data(e);
tw_event_send(e);
}
/*
* epi_agent_send: create new event, and pack on the agent membuf and
* associated pathogen membufs
*/
void
epi_agent_send(tw_lp * src, tw_memory * buf, tw_stime offset, tw_lpid dst)
{
tw_event *e;
tw_memory *b;
tw_memory *next;
epi_agent *a;
e = tw_event_new(dst, 0.0, src);
a = tw_memory_data(buf);
printf("%lld: Sending agent to %lld (%d, %lld) at %lf\n",
src->id, dst, a->curr, a->loc[a->curr], tw_now(src));
// place agent membuf on event, and pack pathogen membufs on after that
// in case this event/agent is sent over the network.
for(next = b = a->pathogens; b; b = next)
{
next = b->next;
tw_event_memory_set(e, b, g_epi_pathogen_fd);
}
tw_event_memory_set(e, buf, g_epi_fd);
a->pathogens = NULL;
tw_event_send(e);
}
/**
* Initializer for OLSR
*/
void olsr_init(node_state *s, tw_lp *lp)
{
hello *h;
tw_event *e;
olsr_msg_data *msg;
tw_stime ts;
//s->num_tuples = 0;
s->num_neigh = 0;
s->num_two_hop = 0;
s->local_address = lp->gid;
s->lng = tw_rand_unif(lp->rng) * GRID_MAX;
s->lat = tw_rand_unif(lp->rng) * GRID_MAX;
ts = tw_rand_unif(lp->rng) * STAGGER_MAX;
e = tw_event_new(lp->gid, ts, lp);
msg = tw_event_data(e);
msg->type = HELLO_TX;
msg->originator = s->local_address;
msg->lng = s->lng;
msg->lat = s->lat;
h = &msg->mt.h;
h->num_neighbors = 0;
//h->neighbor_addrs[0] = s->local_address;
tw_event_send(e);
}
void cont_create_process( CON_state* s, tw_bf* bf, MsgData* msg, tw_lp* lp )
{
tw_event * e;
tw_stime ts;
MsgData * m;
#ifdef TRACE
printf("create %d process at controller travel time is %lf\n",
msg->message_CN_source,
tw_now(lp) - msg->travel_start_time );
#endif
ts = CONT_CONT_msg_prep_time;
e = tw_event_new( lp->gid, ts , lp );
m = tw_event_data(e);
m->event_type = CREATE_ACK;
m->travel_start_time = msg->travel_start_time;
m->io_offset = msg->io_offset;
m->io_payload_size = msg->io_payload_size;
m->collective_group_size = msg->collective_group_size;
m->collective_group_rank = msg->collective_group_rank;
m->collective_master_node_id = msg->collective_master_node_id;
m->io_type = msg->io_type;
m->message_ION_source = msg->message_ION_source;
m->message_FS_source = msg->message_FS_source;
m->message_CN_source = msg->message_CN_source;
m->io_tag = msg->io_tag;
tw_event_send(e);
}
void wifi_station_arrival(wifi_access_point_state * s, tw_bf * bf, wifi_message * m, tw_lp * lp)
{
unsigned int rng_calls=0;
tw_event *e=NULL;
wifi_message *m_new=NULL;
// packets coming from access point have much more power and so better snr
s->stations[m->station].total_packets++;
s->stations[m->station].station_snr = tw_rand_normal_sd(lp->rng,4.0,8.0, &rng_calls);
// New Function - to add prop loss, but not ready yet.
//s->stations[m->station].station_snr = calcRxPower (txPowerDbm, distance, minDistance, lambda, systemLoss);
s->stations[m->station].station_success_rate =
WiFi_80211b_DsssDqpskCck11_SuccessRate(s->stations[m->station].station_snr, num_of_bits);
if( tw_rand_normal_sd(lp->rng,0.5,0.1, &rng_calls) <
s->stations[m->station].station_success_rate)
{
bf->c1 = 1;
s->stations[m->station].failed_packets++;
}
// schedule event back to AP w/ exponential service time
e = tw_event_new(lp->gid, tw_rand_exponential(lp->rng, 10.0), lp);
m_new = (wifi_message *) tw_event_data(e);
m_new->type = WIFI_PACKET_ARRIVAL_AT_ACCESS_POINT;
m_new->station = m->station;
tw_event_send(e);
}
void
mem_event_handler(mem_state * s, tw_bf * bf, mem_message * m, tw_lp * lp)
{
tw_lpid dest;
tw_event *e;
tw_memory *b;
int i;
s->stats.s_recv++;
// read membufs off inbound event, check it and free it
for(i = 0; i < nbufs; i++)
{
b = tw_event_memory_get(lp);
if(!b)
tw_error(TW_LOC, "Missing memory buffers: %d of %d",
i+1, nbufs);
mem_verify(b);
tw_memory_free(lp, b, my_fd);
s->stats.s_mem_free++;
s->stats.s_mem_get++;
}
if(tw_rand_unif(lp->rng) <= percent_remote)
{
bf->c1 = 1;
dest = tw_rand_integer(lp->rng, 0, ttl_lps - 1);
dest += offset_lpid;
if(dest >= ttl_lps)
dest -= ttl_lps;
} else
{
bf->c1 = 0;
dest = lp->gid;
}
e = tw_event_new(dest, tw_rand_exponential(lp->rng, mean), lp);
// allocate membufs and attach them to the event
for(i = 0; i < nbufs; i++)
{
b = mem_alloc(lp);
if(!b)
tw_error(TW_LOC, "no membuf allocated!");
mem_fill(b);
tw_event_memory_set(e, b, my_fd);
s->stats.s_mem_alloc++;
}
tw_event_send(e);
}
// Helpers
void raid_controller_gen_send( tw_lpid dest, Event event_type, tw_stime event_time, tw_lp* lp )
{
// Generate and send message to dest
tw_event* event = tw_event_new( dest, event_time, lp );
MsgData* message = (MsgData*)tw_event_data( event );
message->event_type = event_type;
tw_event_send( event );
}
void
tmr_event_handler(tmr_state * s, tw_bf * bf, tmr_message * m, tw_lp * lp)
{
tw_lpid dest;
* (int *) bf = 0;
if(s->timer)
{
// if current event being processed is the timer
if(tw_event_data(s->timer) == m)
{
bf->c1 = 1;
m->old_timer = s->timer;
s->timer = NULL;
fprintf(f, "%lld: tmr fired at %lf\n",
lp->gid, tw_now(lp));
return;
} else
{
bf->c2 = 1;
m->old_time = s->timer->recv_ts;
tw_timer_reset(lp, &s->timer, tw_now(lp) + 100.0);
if(s->timer == NULL)
fprintf(f, "%lld: reset tmr failed %lf\n",
lp->gid, tw_now(lp) + 100.0);
else
fprintf(f, "%lld: reset tmr to %lf\n",
lp->gid, tw_now(lp) + 100.0);
}
}
if(tw_rand_unif(lp->rng) <= percent_remote)
{
bf->c3 = 1;
dest = tw_rand_integer(lp->rng, 0, ttl_lps - 1);
dest += offset_lpid;
if(dest >= ttl_lps)
dest -= ttl_lps;
} else
{
bf->c3 = 0;
dest = lp->gid;
}
if(!lp->gid)
dest = 0;
tw_event_send(tw_event_new(dest, tw_rand_exponential(lp->rng, mean), lp));
}
void lsm_io_event(
const char * lp_io_category,
uint64_t io_object,
int64_t io_offset,
uint64_t io_size_bytes,
int io_type,
tw_stime delay,
tw_lp *sender,
struct codes_mctx const * map_ctx,
int return_tag,
msg_header const * return_header,
struct codes_cb_info const * cb)
{
assert(strlen(lp_io_category) < CATEGORY_NAME_MAX-1);
assert(strlen(lp_io_category) > 0);
SANITY_CHECK_CB(cb, lsm_return_t);
tw_lpid lsm_id = codes_mctx_to_lpid(map_ctx, LSM_NAME, sender->gid);
tw_stime delta = delay + codes_local_latency(sender);
if (lsm_in_sequence) {
tw_stime tmp = lsm_msg_offset;
lsm_msg_offset += delta;
delta += tmp;
}
tw_event *e = tw_event_new(lsm_id, delta, sender);
lsm_message_t *m = tw_event_data(e);
m->magic = lsm_magic;
m->event = (lsm_event_t) io_type;
m->data.object = io_object;
m->data.offset = io_offset;
m->data.size = io_size_bytes;
strcpy(m->data.category, lp_io_category);
// get the priority count for checking
int num_prios = lsm_get_num_priorities(map_ctx, sender->gid);
// prio checks and sets
if (num_prios <= 0) // disabled scheduler - ignore
m->data.prio = 0;
else if (temp_prio < 0) // unprovided priority - defer to max possible
m->data.prio = num_prios-1;
else if (temp_prio < num_prios) // valid priority
m->data.prio = temp_prio;
else
tw_error(TW_LOC,
"LP %lu, LSM LP %lu: Bad priority (%d supplied, %d lanes)\n",
sender->gid, lsm_id, temp_prio, num_prios);
// reset temp_prio
temp_prio = -1;
m->cb.info = *cb;
m->cb.h = *return_header;
m->cb.tag = return_tag;
tw_event_send(e);
}
/**
* Forward event handler for SRW. Supported operations are currently:
* - GPS
* - MOVEMENT
* - COMMUNICATION
*/
void srw_event(srw_state *s, tw_bf *bf, srw_msg_data *m, tw_lp *lp)
{
tw_stime ts;
tw_event *e;
srw_msg_data *msg;
switch(m->type) {
case GPS:
// Schedule next event
e = tw_event_new(lp->gid, SRW_GPS_RATE, lp);
msg = tw_event_data(e);
msg->node_id = m->node_id;
msg->type = GPS;
tw_event_send(e);
break;
case MOVEMENT:
s->movements++;
(s->nodes[m->node_id]).movements++;
// Schedule next event
ts = tw_rand_exponential(lp->rng, SRW_MOVE_MEAN);
e = tw_event_new(lp->gid, ts, lp);
msg = tw_event_data(e);
msg->node_id = m->node_id;
msg->type = MOVEMENT;
tw_event_send(e);
break;
case COMMUNICATION:
s->comm_try++;
(s->nodes[m->node_id]).comm_try++;
// Schedule next event
ts = tw_rand_exponential(lp->rng, SRW_COMM_MEAN);
e = tw_event_new(lp->gid, ts, lp);
msg = tw_event_data(e);
msg->node_id = m->node_id;
msg->type = COMMUNICATION;
tw_event_send(e);
break;
}
}
static void st_create_sample_event(tw_lp *lp)
{
if (tw_now(lp) + g_st_vt_interval <= g_st_sampling_end)
{
tw_event *e = tw_event_new(lp->gid, g_st_vt_interval, lp);
analysis_msg *m = (analysis_msg*) tw_event_data(e);
m->src = lp->gid;
tw_event_send(e);
}
}
void
packet_process(nodes_state * s, tw_bf * bf, nodes_message * msg, tw_lp * lp)
{
int i;
tw_event *e;
nodes_message *m;
bf->c3 = 1;
// One packet leaves the queue
s->node_queue_length[msg->source_direction][msg->source_dim]--;
s->N_wait_to_be_processed--;
if(lp->gid==msg->dest_lp)
{
// one packet arrives and dies
bf->c3 = 0;
N_finished++;
int index = floor(N_COLLECT_POINTS*(tw_now(lp)/g_tw_ts_end));
N_finished_storage[index]++;
total_time += tw_now(lp) - msg->travel_start_time;
if (max_latency<tw_now(lp) - msg->travel_start_time)
max_latency=tw_now(lp) - msg->travel_start_time;
total_hops += msg->my_N_hop;
total_queue_length += msg->my_N_queue;
queueing_times_sum += msg->queueing_times;
//total_queue_length += msg->accumulate_queue_length;
}
else
{
e = tw_event_new(lp->gid, MEAN_PROCESS, lp);
m = tw_event_data(e);
m->type = SEND;
// Carry on the message info
for( i = 0; i < N_dims; i++ )
m->dest[i] = msg->dest[i];
m->dest_lp = msg->dest_lp;
m->transmission_time = msg->transmission_time;
m->source_dim = msg->source_dim;
m->source_direction = msg->source_direction;
m->packet_ID = msg->packet_ID;
m->travel_start_time = msg->travel_start_time;
m->my_N_hop = msg->my_N_hop;
m->my_N_queue = msg->my_N_queue;
m->queueing_times = msg->queueing_times;
tw_event_send(e);
}
}
//Init function
// - called once for each LP
// ! LP can only send messages to itself during init !
void decrement_init (decrement_state *s, tw_lp *lp) {
int self = lp->gid;
// init state data
s->decrement_value = 1;
s->round_count = 0;
// Init message to myself
tw_event *e = tw_event_new(self, 2, lp);
message *msg = tw_event_data(e);
msg->type = WAKEUP;
tw_event_send(e);
}
/* Trigger getting next event at LP */
static void codes_issue_next_event(tw_lp* lp)
{
tw_event *e;
nw_message* msg;
tw_stime ts;
ts = g_tw_lookahead + 0.1 + tw_rand_exponential(lp->rng, noise);
e = tw_event_new( lp->gid, ts, lp );
msg = tw_event_data(e);
msg->msg_type = MPI_OP_GET_NEXT;
tw_event_send(e);
}
void
packet_send(nodes_state * s, tw_bf * bf, nodes_message * msg, tw_lp * lp)
{
int i;
tw_lpid dst_lp;
tw_stime ts;
tw_event *e;
nodes_message *m;
ts = LINK_DELAY+msg->transmission_time;
/*
* Routing in the torus, start from the first dimension
*/
if (lp->gid != msg->dest_lp )
{
bf->c3 = 1;
dimension_order_routing(s,msg,&dst_lp);
msg->source_dim = s->source_dim;
msg->source_direction = s->direction;
}
else
{
bf->c3 = 0;
dst_lp = lp->gid;
}
e = tw_event_new(dst_lp, ts, lp);
m = tw_event_data(e);
m->type = ARRIVAL;
// Carry on the message info
for( i = 0; i < N_dims; i++ )
m->dest[i] = msg->dest[i];
m->dest_lp = msg->dest_lp;
m->transmission_time = msg->transmission_time;
m->source_dim = msg->source_dim;
m->source_direction = msg->source_direction;
m->packet_ID = msg->packet_ID;
m->travel_start_time = msg->travel_start_time;
m->my_N_hop = msg->my_N_hop;
m->my_N_queue = msg->my_N_queue;
m->queueing_times = msg->queueing_times;
tw_event_send(e);
}
//Forward event handler
void decrement_event (decrement_state *s, tw_bf *bf, message *in_msg, tw_lp *lp) {
int self = lp->gid;
if (in_msg->type != WAKEUP) {
tw_error(TW_LOC, "Decrement LP received wrong message type");
}
s->round_count++;
int i;
for (i = 0; i < total_receivers; i++) {
tw_event *e = tw_event_new(i+2, 1, lp);
message *msg = tw_event_data(e);
msg->type = DECREMENT;
msg->value = s->decrement_value;
tw_event_send(e);
}
// Wakeup self
tw_event *e = tw_event_new(self, 2, lp);
message *msg = tw_event_data(e);
msg->type = WAKEUP;
tw_event_send(e);
}
void Intersection_StartUp(Intersection_State *SV, tw_lp * lp) {
//printf("begin init\n");
int i;
tw_event *CurEvent;
tw_stime ts;
Msg_Data *NewM;
SV->total_cars_arrived = 0;
SV->total_cars_finished = 0;
SV->num_in_west_left = 0;
SV->num_in_west_straight = 0;
SV->num_in_west_right = 0;
SV->num_in_north_left = 0;
SV->num_in_north_straight = 0;
SV->num_in_north_right = 0;
SV->num_in_south_left = 0;
SV->num_in_south_straight = 0;
SV->num_in_south_right = 0;
SV->num_in_east_left = 0;
SV->num_in_east_straight = 0;
SV->num_in_east_right = 0;
SV->num_out_west_left = 0;
SV->num_out_west_straight = 0;
SV->num_out_west_right = 0;
SV->num_out_north_left = 0;
SV->num_out_north_straight = 0;
SV->num_out_north_right = 0;
SV->num_out_south_left = 0;
SV->num_out_south_straight = 0;
SV->num_out_south_right = 0;
SV->num_out_east_left = 0;
SV->num_out_east_straight = 0;
SV->num_out_east_right = 0;
for(i = 0; i < g_traffic_start_events; i++)
{
ts = tw_rand_exponential(lp->rng, MEAN_SERVICE );
CurEvent = tw_event_new(lp->gid, ts, lp);
NewM = (Msg_Data *)tw_event_data(CurEvent);
NewM->event_type = ARIVAL;
NewM->car.x_to_go = rand() % 200 - 99;
NewM->car.y_to_go = rand() % 200 - 99;
NewM->car.current_lane = rand() % 12;
NewM->car.sent_back = 0;
NewM->car.in_out = IN;
tw_event_send(CurEvent);
}
}
//Init function
// - called once for each LP
// ! LP can only send messages to itself during init !
void model_init (state *s, tw_lp *lp) {
int self = lp->gid;
// init state data
s->rcvd_count_H = 0;
s->rcvd_count_G = 0;
s->value = -1;
// Init message to myself
tw_event *e = tw_event_new(self, 1, lp);
message *msg = tw_event_data(e);
msg->type = HELLO;
msg->contents = tw_rand_unif(lp->rng);
msg->sender = self;
tw_event_send(e);
}
/*
* The event being processed that caused this function to be
* called is a user model event. Therefore, I cannot use it
* for state saving. Solution: create my own event and send
* it with a 0.0 offset timestamp.
*/
void
tlm_wave_initiate(double * position, double signal, tw_lp * lp)
{
tw_lpid gid = tlm_getcell(position);
tw_event *e;
tlm_message *m;
e = tw_event_new(gid, g_tlm_scatter_ts, lp);
m = tw_event_data(e);
m->type = RM_WAVE_INIT;
m->displacement = signal;
m->id = lp->gid;
tw_event_send(e);
}
/* initialize MPI process LP */
void
mpi_init( mpi_process * p,
tw_lp * lp)
{
tw_event *e;
tw_stime ts;
nodes_message *m;
p->message_counter = 0;
/* Start a MPI send event on each MPI LP */
ts = tw_rand_exponential(lp->rng, MEAN_INTERVAL);
e = tw_event_new( lp->gid, ts, lp );
m = tw_event_data( e );
m->type = MPI_SEND;
p->available_time = 0.0;
tw_event_send( e );
}
void
phold_pre_run(phold_state * s, tw_lp * lp)
{
tw_lpid dest;
if(tw_rand_unif(lp->rng) <= percent_remote)
{
dest = tw_rand_integer(lp->rng, 0, ttl_lps - 1);
} else
{
dest = lp->gid;
}
if(dest >= (g_tw_nlp * tw_nnodes()))
tw_error(TW_LOC, "bad dest");
tw_event_send(tw_event_new(dest, tw_rand_exponential(lp->rng, mean) + lookahead, lp));
}