int coap_cmd(int argc, char **argv) {
coap_context_t *ctx;
struct timeval tv, *timeout;
coap_tick_t now;
coap_queue_t *nextpdu;
coap_log_t log_level = LOG_WARNING;
coap_set_log_level(log_level);
ctx = get_context();
if (!ctx)
return -1;
init_resources(ctx);
while ( !quit ) {
nextpdu = coap_peek_next( ctx );
coap_ticks(&now);
while (nextpdu && nextpdu->t <= now - ctx->sendqueue_basetime) {
coap_retransmit( ctx, coap_pop_next( ctx ) );
nextpdu = coap_peek_next( ctx );
}
if ( nextpdu && nextpdu->t <= COAP_RESOURCE_CHECK_TIME ) {
/* set timeout if there is a pdu to send before our automatic timeout occurs */
tv.tv_usec = ((nextpdu->t) % COAP_TICKS_PER_SECOND) * 1000000 / COAP_TICKS_PER_SECOND;
tv.tv_sec = (nextpdu->t) / COAP_TICKS_PER_SECOND;
timeout = &tv;
} else {
tv.tv_usec = 0;
tv.tv_sec = COAP_RESOURCE_CHECK_TIME;
timeout = &tv;
}
(void) timeout;
coap_read(ctx); /* read received data */
coap_dispatch(ctx); /* and dispatch PDUs from receivequeue */
#ifndef WITHOUT_ASYNC
/* check if we have to send asynchronous responses */
check_async(ctx, now);
#endif /* WITHOUT_ASYNC */
#ifndef WITHOUT_OBSERVE
/* check if we have to send observe notifications */
coap_check_notify(ctx);
#endif /* WITHOUT_OBSERVE */
}
coap_free_context( ctx );
return 0;
}
int
main(int argc, char **argv) {
coap_context_t *ctx;
fd_set readfds;
struct timeval tv, *timeout;
int result;
coap_tick_t now;
coap_queue_t *nextpdu;
char addr_str[NI_MAXHOST] = "::";
char port_str[NI_MAXSERV] = "5683";
int opt;
coap_log_t log_level = LOG_WARN;
while ((opt = getopt(argc, argv, "A:p:v:")) != -1) {
switch (opt) {
case 'A' :
strncpy(addr_str, optarg, NI_MAXHOST-1);
addr_str[NI_MAXHOST - 1] = '\0';
break;
case 'p' :
strncpy(port_str, optarg, NI_MAXSERV-1);
port_str[NI_MAXSERV - 1] = '\0';
break;
case 'v' :
log_level = strtol(optarg, NULL, 10);
break;
default:
usage( argv[0], PACKAGE_VERSION );
exit( 1 );
}
}
coap_set_log_level(log_level);
ctx = get_context(addr_str, port_str);
if (!ctx)
return -1;
coap_register_option(ctx, COAP_OPTION_BLOCK2);
init_resources(ctx);
signal(SIGINT, handle_sigint);
while ( !quit ) {
FD_ZERO(&readfds);
FD_SET( ctx->sockfd, &readfds );
nextpdu = coap_peek_next( ctx );
coap_ticks(&now);
while ( nextpdu && nextpdu->t <= now ) {
coap_retransmit( ctx, coap_pop_next( ctx ) );
nextpdu = coap_peek_next( ctx );
}
if ( nextpdu && nextpdu->t <= now + COAP_RESOURCE_CHECK_TIME_SEC ) {
/* set timeout if there is a pdu to send before our automatic timeout occurs */
tv.tv_usec = ((nextpdu->t - now) % COAP_TICKS_PER_SECOND) * 1000000 / COAP_TICKS_PER_SECOND;
tv.tv_sec = (nextpdu->t - now) / COAP_TICKS_PER_SECOND;
timeout = &tv;
} else {
tv.tv_usec = 0;
tv.tv_sec = COAP_RESOURCE_CHECK_TIME_SEC;
timeout = &tv;
}
result = select( FD_SETSIZE, &readfds, 0, 0, timeout );
if ( result < 0 ) { /* error */
if (errno != EINTR)
perror("select");
} else if ( result > 0 ) { /* read from socket */
if ( FD_ISSET( ctx->sockfd, &readfds ) ) {
coap_read( ctx ); /* read received data */
coap_dispatch( ctx ); /* and dispatch PDUs from receivequeue */
}
} else { /* timeout */
/* coap_check_resource_list( ctx ); */
}
/* check if we have to send asynchronous responses */
check_async(ctx, now);
}
coap_free_context( ctx );
return 0;
}
