/*
* Each bot's entry point. 'arg' must be a dynamically allocated THREAD_ARG
* pointer. The pointer is freed by the new thread.
*/
void*
BotEntryPoint(void *arg)
{
THREAD_DATA *td = (THREAD_DATA*)arg;
/* set the tls key */
pthread_setspecific(g_tls_key, td);
init_thread_data(td);
db_instance_init();
cmd_instance_init(td);
player_instance_init(td);
libman_instance_init(td);
/* load the core pseudo-plugin */
libman_load_library(td, NULL);
/* load the bots libraries */
int num_plugins = DelimCount(td->libstring, ' ') + 1;
for (int i = 0; i < num_plugins; ++i) {
char libname[64];
DelimArgs(libname, 64, td->libstring, i, ' ', false);
if (strlen(libname) > 0) {
libman_load_library(td, libname);
}
}
/* mainloop */
mainloop(td);
disconnect_from_server(td);
libman_instance_shutdown(td);
player_instance_shutdown(td);
cmd_instance_shutdown(td);
db_instance_shutdown();
botman_bot_exiting(td->botman_handle);
free_thread_data(td);
free(td);
return NULL;
}
static
void
mainloop(THREAD_DATA *td)
{
THREAD_DATA::net_t *n = td->net;
ticks_ms_t acc, ticks, lticks; /* accumulator, current ticks, last iteration ticks */
int pktl; /* packet length */
uint8_t pkt[MAX_PACKET]; /* buffer space for a packet */
if (connect_to_server(td) != 0) {
free_thread_data(td);
LogFmt(OP_MOD, "Error performing initial connect");
return;
}
acc = 0;
ticks = get_ticks_ms();
lticks = ticks;
ticks_ms_t last_botman_checkin = ticks;
ticks_ms_t last_botman_stopcheck = ticks;
ticks_ms_t last_config_mtime_check = ticks;
while (td->running >= 0) {
ticks = get_ticks_ms();
acc += ticks - lticks;
lticks = ticks;
/* check in with the bot manager */
if (ticks - last_botman_checkin >= BOTMAN_CHECKIN_INTERVAL) {
botman_bot_checkin(td->botman_handle);
last_botman_checkin = ticks;
}
if (ticks - last_botman_stopcheck >= BOTMAN_STOPCHECK_INTERVAL) {
if (botman_bot_shouldstop(td->botman_handle)) {
td->running = -1;
}
last_botman_stopcheck = ticks;
}
/* flush out tick events to bots */
if (acc >= STEP_INTERVAL) {
libman_expire_timers(td);
while(acc >= STEP_INTERVAL) {
/* event_tick */
libman_export_event(td, EVENT_TICK, NULL);
acc -= STEP_INTERVAL;
}
}
/* if the bot is disconnected, see if it is time to reconnect */
if (n->state == NS_DISCONNECTED) {
if (ticks - n->ticks->disconnected > 60000) {
free_thread_data(td);
init_thread_data(td);
connect_to_server(td);
} else {
usleep(50000); /* 50ms */
continue;
}
}
/* see if the config file has been modified and if so send a reread event */
if (ticks - last_config_mtime_check >= CONFIG_MTIME_POLL_INTERVAL) {
struct stat attr;
memset(&attr, 0, sizeof(struct stat));
if (stat(td->config->filename, &attr) == 0) {
if (td->config->last_modified_time != attr.st_mtime) {
libman_export_event(td, EVENT_CONFIG_CHANGE, NULL);
td->config->last_modified_time = attr.st_mtime;
}
}
last_config_mtime_check = ticks;
}
/* use up to STEP_INTERVAL ms for the db thread */
ticks_ms_t ticks_taken = get_ticks_ms() - ticks;
ticks_ms_t db_ticks = ticks_taken > STEP_INTERVAL ? STEP_INTERVAL : STEP_INTERVAL - ticks_taken;
db_instance_export_events(db_ticks);
/* read a packet or wait for a timeout */
ticks_taken = get_ticks_ms() - ticks;
ticks_ms_t timeout = ticks_taken > STEP_INTERVAL ? 0 : STEP_INTERVAL - ticks_taken;
while (poll(n->pfd, 1, (int)timeout) > 0) {
/* process incoming packet, data is waiting */
pktl = (int)read(n->fd, pkt, MAX_PACKET);
if (pktl >= 0) {
++n->stats->packets_read;
n->ticks->last_pkt_received = get_ticks_ms();
if (n->encrypt->use_encryption) {
if (pkt[0] == 0x00) {
if (pktl >= 2) {
decrypt_buffer(td, &pkt[2], pktl-2);
}
} else {
decrypt_buffer(td, &pkt[1], pktl-1);
}
}
if (td->debug->spew_packets) {
spew_packet(pkt, pktl, DIR_INCOMING);
}
process_incoming_packet(td, pkt, pktl);
}
ticks_taken = get_ticks_ms() - ticks;
timeout = timeout > ticks_taken ? timeout - ticks_taken : 0;
}
/* update the tick count after potential sleeping in poll() */
ticks = get_ticks_ms();
/* network state specfic actions */
if (n->state == NS_CONNECTING) {
/* retransmit connection request if it was lost */
if (ticks - n->ticks->last_connection_request > 15000) {
pkt_send_client_key(n->encrypt->client_key);
n->ticks->last_connection_request = ticks;
}
} else if (ticks - n->ticks->last_pkt_received > 30*1000) {
/* disconnect if no packets have been received for 30 seconds */
Log(OP_MOD, "No data received for 30 seconds, reconnecting...");
disconnect_from_server(td);
continue;
}
/* transmit player position update if necessary */
if (n->state == NS_CONNECTED && td->in_arena) {
if ((ticks - n->ticks->last_pos_update_sent > 100
&& td->bot_ship != SHIP_SPECTATOR)
|| (ticks - n->ticks->last_pos_update_sent > 1000
&& td->bot_ship == SHIP_SPECTATOR)) {
pkt_send_position_update(td->bot_pos->x, td->bot_pos->y,
td->bot_vel->x, td->bot_vel->y);
n->ticks->last_pos_update_sent = ticks;
}
}
/* send periodic info/einfo */
if (n->state == NS_CONNECTED) {
// subtract 10000 to offset this by 10 seconds from *einfo to avoid filling buffers with commands/responses
if (td->periodic->info && ticks - (td->periodic->last_info - 10000U) >= td->periodic->info) {
int nhere = player_get_phere(td);
PLAYER *parray = player_get_parray(td);
for (int i = 0; i < nhere; ++i) {
if (parray[i].here && td->enter->send_info) {
PrivMessage(&parray[i], "*info");
}
}
td->periodic->last_info = ticks;
}
if (td->periodic->einfo && ticks - td->periodic->last_einfo >= td->periodic->einfo) {
int nhere = player_get_phere(td);
PLAYER *parray = player_get_parray(td);
for (int i = 0; i < nhere; ++i) {
if (parray[i].here && td->enter->send_einfo) {
PrivMessage(&parray[i], "*einfo");
}
}
td->periodic->last_einfo = ticks;
}
}
/* retransmit reliable packets that have not been acked */
rpacket_list_t *l = n->rel_o->queue;
rpacket_list_t::iterator iter = l->begin();
while (iter != l->end()) {
RPACKET *rp = *iter;
if (ticks - rp->ticks > RELIABLE_RETRANSMIT_INTERVAL) {
PACKET *p = allocate_packet(rp->len);
memcpy(p->data, rp->data, rp->len);
/* update packets retransmit tick */
rp->ticks = ticks;
queue_packet(p, SP_HIGH);
}
++iter;
}
/* free absent players if its time */
ticks_ms_t flush_check_interval = 60 * 60 * 1000;
if (ticks - td->arena->ticks->last_player_flush > flush_check_interval) {
player_free_absent_players(td, flush_check_interval, true);
td->arena->ticks->last_player_flush = ticks;
}
/* write packets generated during loop iteration */
send_outgoing_packets(td);
} /* while td->running != 0 */
}
int
main(int argc, char **argv)
{
int i;
const char *getopt_str;
int opt_p=0, opt_g=0, opt_a=0, opt_m=0;
#if TEST_MPI
init_test_mpi(&argc, &argv);
getopt_str = "pgamlvtdi:";
#else
getopt_str = "pgalvtdi:";
#endif
GASNET_Safe(gasnet_init(&argc, &argv));
GASNET_Safe(gasnet_attach(htable, HANDLER_TABLE_SIZE,
TEST_SEGSZ_REQUEST, TEST_MINHEAPOFFSET));
#if TEST_MPI
#define TEST_MPI_USAGE " -m use MPI calls \n"
#else
#define TEST_MPI_USAGE ""
#endif
#if GASNET_PAR
#define TEST_THREAD_USAGE " [<threads_per_node>]\n\n" \
"<threads_per_node> must be between 1 and "_STRINGIFY(TEST_MAXTHREADS)" \n"
#else
#define TEST_THREAD_USAGE "\n\n"
#endif
test_init("testthreads",0, "[ -pgalvtd ] [ -i <iters> ]"
TEST_THREAD_USAGE
"no options means run all tests with "_STRINGIFY(DEFAULT_ITERS)" iterations\n"
"options: \n"
" -p use puts \n"
" -g use gets \n"
" -a use Active Messages \n"
" -l use local Active Messages \n"
TEST_MPI_USAGE
" -v output information about actions taken \n"
" -t include AM handler actions with -v \n"
" -d dynamic thread creation stress test \n"
" -i <iters> use <iters> iterations per thread \n");
while ((i = getopt (argc, argv, getopt_str)) != EOF) {
switch (i) {
case 'p': opt_p = 1; break;
case 'g': opt_g = 1; break;
case 'a': opt_a = 1; break;
case 'm': opt_m = 1; break;
case 'l': AM_loopback = 1; break;
case 'i': iters = atoi(optarg); break;
case 'v': verbose = 1; break;
case 't': amtrace = 1; break;
case 'd': threadstress = 1; break;
default: test_usage();
}
}
if (opt_p) test_functions[functions_num++] = test_put;
if (opt_g) test_functions[functions_num++] = test_get;
if (opt_a) {
test_functions[functions_num++] = test_amshort;
test_functions[functions_num++] = test_ammedium;
test_functions[functions_num++] = test_amlong;
}
#if TEST_MPI
if (opt_m) test_functions[functions_num++] = test_mpi;
#endif
if (amtrace) verbose = 1;
/* Assume all test functions if no option is passed */
if (functions_num == 0) {
MSG("running all functions!");
memcpy(test_functions, test_functions_all,
sizeof(test_functions_all));
functions_num = NUM_FUNCTIONS;
}
argc -= optind;
if (argc > 1) test_usage();
else if (argc == 1) {
argv += optind;
threads_num = atoi(argv[0]);
}
if (threads_num > TEST_MAXTHREADS || threads_num < 1) {
printf("ERROR: Threads must be between 1 and %i\n",TEST_MAXTHREADS);
exit(EXIT_FAILURE);
}
/* limit sizes to a reasonable size */
#define LIMIT(sz) MIN(sz,4194304)
{ int sz = 0;
sizes[sz++] = LIMIT(gasnet_AMMaxMedium()-1);
sizes[sz++] = LIMIT(gasnet_AMMaxMedium());
sizes[sz++] = LIMIT(gasnet_AMMaxMedium()+1);
sizes[sz++] = LIMIT(gasnet_AMMaxLongRequest()-1);
sizes[sz++] = LIMIT(gasnet_AMMaxLongRequest());
sizes[sz++] = LIMIT(gasnet_AMMaxLongRequest()+1);
sizes[sz++] = LIMIT(gasnet_AMMaxLongReply()-1);
sizes[sz++] = LIMIT(gasnet_AMMaxLongReply());
sizes[sz++] = LIMIT(gasnet_AMMaxLongReply()+1);
assert(sizes[sz] == 0);
}
alloc_thread_data(threads_num);
#if TEST_MPI
attach_test_mpi();
#endif
#ifdef GASNET_PAR
if (threadstress) {
int spawniters = MAX(1,iters/threads_num);
int i;
MSG("Dynamic thread creation stress test, %d gasnet threads, (%d at a time)", spawniters*threads_num, threads_num);
iters = 10; /* enough iters to ensure we get thread registration */
for (i = 0; i < spawniters; i++) {
test_createandjoin_pthreads(threads_num, &threadmain, tt_thread_data, sizeof(threaddata_t));
TEST_PROGRESS_BAR(i, spawniters);
}
} else {
MSG("Forking %d gasnet threads and running %d iterations", threads_num, iters);
test_createandjoin_pthreads(threads_num, &threadmain, tt_thread_data, sizeof(threaddata_t));
}
#else /* for testmpi-seq and -parsync */
#ifdef GASNET_SEQ
MSG("Running with 1 thread/node for GASNET_SEQ mode");
#else
MSG("Running with 1 thread/node for GASNET_PARSYNC mode");
#endif
threadmain(tt_thread_data);
#endif
BARRIER();
free_thread_data();
MSG("Tests complete");
BARRIER();
gasnet_exit(0);
return 0;
}