Example #1
0
static DWORD WINAPI lo_thread(LPVOID param) {
	sosc_state_t *state = param;

	while( 1 )
		lo_server_recv(state->server);

	return 0;
}
Example #2
0
int lo_server_recv_noblock(lo_server s, int timeout)
{
    int sched_timeout = lo_server_next_event_delay(s) * 1000;
#ifdef WIN32
    fd_set ps;
    struct timeval stimeout;
#else
    struct pollfd ps;
#endif

#ifdef WIN32
    int res,to;

    if(!initWSock()) return 0;

    to = timeout > sched_timeout ? sched_timeout : timeout;
    stimeout.tv_sec = to/1000;
    stimeout.tv_usec = (to%1000)*1000;

    FD_ZERO(&ps);
    FD_SET(s->socket,&ps);
    res = select(1,&ps,NULL,NULL,&stimeout);

    if(res == SOCKET_ERROR)
        return 0;

    if (res || lo_server_next_event_delay(s) < 0.01)
	    return lo_server_recv(s);
#else
    ps.fd = s->socket;
    ps.events = POLLIN | POLLPRI | POLLERR | POLLHUP;
    ps.revents = 0;
    poll(&ps, 1, timeout > sched_timeout ? sched_timeout : timeout);

    if (ps.revents == POLLERR || ps.revents == POLLHUP) {
	return 0;
    }
    if (ps.revents || lo_server_next_event_delay(s) < 0.01) {
	return lo_server_recv(s);
    }
#endif

    return 0;
}
Example #3
0
void* osc2lp()
{
	// register methods
	lo_server_add_method(osc, NULL, NULL, generic_handler, NULL);
	lo_server_add_method(osc, "/lp/matrix", "iii", matrix_handler, NULL);
	lo_server_add_method(osc, "/lp/scene", "ii", scene_handler, NULL);
	lo_server_add_method(osc, "/lp/ctrl", "ii", ctrl_handler, NULL);
	lo_server_add_method(osc, "/lp/reset", "", reset_handler, NULL);
	lo_server_add_method(osc, "/lp/dest", "s", dest_handler, NULL);
	
	while (true) {
		fflush(stdout);
		lo_server_recv(osc);
	}
}
Example #4
0
void test_multicast(lo_server_thread st)
{
    /* test multicast server and sender */
    /* message is sent from st otherwise reply doesn't work */
    lo_server ms = lo_server_new_multicast("224.0.1.1", "15432", error);
    lo_address ma = lo_address_new("224.0.1.1", "15432");
    lo_address_set_ttl(ma, 1);
    lo_server_add_method(ms, "/foo/bar", "fi", foo_handler, ms);
    lo_server_add_method(ms, "/reply", "s", reply_handler, NULL);
    if (lo_send_from(ma, lo_server_thread_get_server(st), LO_TT_IMMEDIATE,
                     "/foo/bar", "ff", 0.12345678f, 23.0f) == -1) {
        printf("multicast send error %d: %s\n", lo_address_errno(ma), lo_address_errstr(ma));
        exit(1);
    }
    TEST(lo_server_recv(ms)==24);
    lo_server_free(ms);
    lo_address_free(ma);
}
Example #5
0
int main(int argc, char **argv)
{
	lo_server server;

	if(argc < 2) {
		usage();
		exit(1);
	}

	server = lo_server_new(argv[1], errorHandler);
	if(server == NULL) {
		printf("Could not start a server with port %s\n", argv[1]);
		exit(1);
	}

	lo_server_add_method(server, NULL, NULL, messageHandler, NULL);


	for(;;) {
		lo_server_recv(server);
	}

	return 0;
}
Example #6
0
int main()
{
    lo_blob btest = lo_blob_new(sizeof(testdata), testdata);
    lo_server_thread st, sta, stb;
    lo_server s = lo_server_new(NULL, error);
    lo_bundle b;
    lo_message m1, m2;
    char *server_url, *path, *protocol, *host, *port;
    const char *host2, *port2;
    lo_address a;
    uint8_t midi_data[4] = {0xff, 0xf7, 0xAA, 0x00};
    union end_test32 et32;
    union end_test64 et64;
    lo_timetag tt = {0x1, 0x80000000}, sched;
    int count;
    int proto;
    char cmd[256];

    test_deserialise();

    sta = lo_server_thread_new("7591", error);
    stb = lo_server_thread_new("7591", rep_error);
    if (stb) {
	fprintf(stderr, "FAILED: create bad server thread object!\n");
	exit(1);
    }
    lo_server_thread_free(sta);

    /* leak check */
    st = lo_server_thread_new(NULL, error);
    lo_server_thread_start(st);
#ifdef WIN32
    Sleep(4);
#else
    usleep(4000);
#endif
    lo_server_thread_stop(st);
    lo_server_thread_free(st);
    st = lo_server_thread_new(NULL, error);
    lo_server_thread_start(st);
    lo_server_thread_stop(st);
    lo_server_thread_free(st);
    st = lo_server_thread_new(NULL, error);
    lo_server_thread_free(st);
    st = lo_server_thread_new(NULL, error);
    lo_server_thread_free(st);
    st = lo_server_thread_new(NULL, error);

    a = lo_address_new_from_url("osc://localhost/");
    TEST(a != NULL);
    lo_address_free(a);

    a = lo_address_new_from_url("osc.://localhost/");
    TEST(a == NULL);


    atexit(exitcheck);

    printf("type tests\n");
    TEST(sizeof(float) == sizeof(int32_t));
    TEST(sizeof(double) == sizeof(int64_t));

    et32.i = 0x23242526U;
    et32.i = lo_htoo32(et32.i);
    if (et32.c[0] != 0x23 || et32.c[1] != 0x24 || et32.c[2] != 0x25 ||
	et32.c[3] != 0x26) {
	fprintf(stderr, "failed 32bit endian conversion test\n");
	fprintf(stderr, "0x23242526 -> %X\n", et32.i);
	exit(1);
    } else {
	printf("passed 32bit endian conversion test\n");
    }

    et64.i = 0x232425262728292AULL;
    et64.i = lo_htoo64(et64.i);
    if (et64.c[0] != 0x23 || et64.c[1] != 0x24 || et64.c[2] != 0x25 ||
	et64.c[3] != 0x26 || et64.c[4] != 0x27 || et64.c[5] != 0x28 ||
	et64.c[6] != 0x29 || et64.c[7] != 0x2A) {
	fprintf(stderr, "failed 64bit endian conversion\n");
	fprintf(stderr, "0x232425262728292A -> %llX\n", (long long unsigned int)et64.i);
	exit(1);
    } else {
	printf("passed 64bit endian conversion\n");
    }
    printf("\n");

    /* OSC URL tests */
    path = lo_url_get_path("osc.udp://localhost:9999/a/path/is/here");
    if (strcmp(path, "/a/path/is/here")) {
	printf("failed lo_url_get_path() test1\n");
	printf("'%s' != '/a/path/is/here'\n", path);
	exit(1);
    } else {
	printf("passed lo_url_get_path() test1\n");
    }
    free(path);

    protocol = lo_url_get_protocol("osc.udp://localhost:9999/a/path/is/here");
    if (strcmp(protocol, "udp")) {
	printf("failed lo_url_get_protocol() test1\n");
	printf("'%s' != 'udp'\n", protocol);
	exit(1);
    } else {
	printf("passed lo_url_get_protocol() test1\n");
    }
    free(protocol);

    protocol = lo_url_get_protocol("osc.tcp://localhost:9999/a/path/is/here");
    if (strcmp(protocol, "tcp")) {
	printf("failed lo_url_get_protocol() test2\n");
	printf("'%s' != 'tcp'\n", protocol);
	exit(1);
    } else {
	printf("passed lo_url_get_protocol() test2\n");
    }
    free(protocol);
    
    protocol = lo_url_get_protocol("osc.udp://[::ffff:localhost]:9999/a/path/is/here");
    if (strcmp(protocol, "udp")) {
	printf("failed lo_url_get_protocol() test1 (IPv6)\n");
	printf("'%s' != 'udp'\n", protocol);
	exit(1);
    } else {
	printf("passed lo_url_get_protocol() test1 (IPv6)\n");
    }
    free(protocol);

    proto = lo_url_get_protocol_id("osc.udp://localhost:9999/a/path/is/here");
    if (proto != LO_UDP) {
	printf("failed lo_url_get_protocol_id() test1\n");
	printf("'%d' != LO_UDP\n", proto);
	exit(1);
    } else {
	printf("passed lo_url_get_protocol_id() test1\n");
    }

    proto = lo_url_get_protocol_id("osc.tcp://localhost:9999/a/path/is/here");
    if (proto != LO_TCP) {
	printf("failed lo_url_get_protocol_id() test2\n");
	printf("'%d' != LO_TCP\n", proto);
	exit(1);
    } else {
	printf("passed lo_url_get_protocol_id() test2\n");
    }
    
    proto = lo_url_get_protocol_id("osc.invalid://localhost:9999/a/path/is/here");
    if (proto != -1) {
	printf("failed lo_url_get_protocol_id() test3\n");
	printf("'%d' != -1\n", proto);
	exit(1);
    } else {
	printf("passed lo_url_get_protocol_id() test3\n");
    }
    
    proto = lo_url_get_protocol_id("osc.udp://[::ffff:localhost]:9999/a/path/is/here");
    if (proto != LO_UDP) {
	printf("failed lo_url_get_protocol_id() test1 (IPv6)\n");
	printf("'%d' != LO_UDP\n", proto);
	exit(1);
    } else {
	printf("passed lo_url_get_protocol_id() test1 (IPv6)\n");
    }

    host = lo_url_get_hostname("osc.udp://foo.example.com:9999/a/path/is/here");
    if (strcmp(host, "foo.example.com")) {
	printf("failed lo_url_get_hostname() test1\n");
	printf("'%s' != 'foo.example.com'\n", host);
	exit(1);
    } else {
	printf("passed lo_url_get_hostname() test1\n");
    }
    free(host);

    host = lo_url_get_hostname("osc.udp://[0000::::0001]:9999/a/path/is/here");
    if (strcmp(host, "0000::::0001")) {
	printf("failed lo_url_get_hostname() test2 (IPv6)\n");
	printf("'%s' != '0000::::0001'\n", host);
	exit(1);
    } else {
	printf("passed lo_url_get_hostname() test2 (IPv6)\n");
    }
    free(host);

    port = lo_url_get_port("osc.udp://localhost:9999/a/path/is/here");
    if (strcmp(port, "9999")) {
	printf("failed lo_url_get_port() test1\n");
	printf("'%s' != '9999'\n", port);
	exit(1);
    } else {
	printf("passed lo_url_get_port() test1\n");
    }
    free(port);
    
    port = lo_url_get_port("osc.udp://[::ffff:127.0.0.1]:9999/a/path/is/here");
    if (strcmp(port, "9999")) {
	printf("failed lo_url_get_port() test1 (IPv6)\n");
	printf("'%s' != '9999'\n", port);
	exit(1);
    } else {
	printf("passed lo_url_get_port() test1 (IPv6)\n");
    }
    free(port);
    printf("\n");
    
    
    
    
    
    a = lo_address_new_from_url("osc.tcp://foo.example.com:9999/");
    host2 = lo_address_get_hostname(a);
    if (strcmp(host2, "foo.example.com")) {
	printf("failed lo_address_get_hostname() test\n");
	printf("'%s' != 'foo.example.com'\n", host2);
	exit(1);
    } else {
	printf("passed lo_address_get_hostname() test\n");
    }

    port2 = lo_address_get_port(a);
    if (strcmp(port2, "9999")) {
	printf("failed lo_address_get_port() test\n");
	printf("'%s' != '9999'\n", port2);
	exit(1);
    } else {
	printf("passed lo_address_get_port() test\n");
    }

    proto = lo_address_get_protocol(a);
    if (proto != LO_TCP) {
	printf("failed lo_address_get_protocol() test\n");
	printf("'%d' != '%d'\n", proto, LO_TCP);
	exit(1);
    } else {
	printf("passed lo_address_get_protocol() test\n");
    }

    server_url = lo_address_get_url(a);
    if (strcmp(server_url, "osc.tcp://foo.example.com:9999/")) {
	printf("failed lo_address_get_url() test\n");
	printf("'%s' != '%s'\n", server_url, "osc.tcp://foo.example.com:9999/");
	exit(1);
    } else {
	printf("passed lo_address_get_url() test\n");
    }
    free(server_url);
    lo_address_free( a );
    printf("\n");
    

    /* Test blod sizes */
    if (lo_blob_datasize(btest) != 5 || lo_blobsize(btest) != 12) {
	printf("blob is %d (%d) bytes long, should be 5 (12)\n",
               lo_blob_datasize(btest), lo_blobsize(btest));
	lo_arg_pp(LO_BLOB, btest);
	printf(" <- blob\n");
	exit(1);
    }
    
    
    
    /* Server method handler tests */
    server_url = lo_server_thread_get_url(st);
    a = lo_address_new_from_url(server_url);
    printf("Server URL: %s\n", server_url);
    free(server_url);

    /* add method that will match the path /foo/bar, with two numbers, coerced
     * to float and int */

    lo_server_thread_add_method(st, "/foo/bar", "fi", foo_handler, lo_server_thread_get_server(st));

    lo_server_thread_add_method(st, "/reply", "s", reply_handler, NULL);

    lo_server_thread_add_method(st, "/lotsofformats", "fisbmhtdSccTFNI",
				lots_handler, NULL);

    lo_server_thread_add_method(st, "/coerce", "dfhiSs",
				coerce_handler, NULL);

    lo_server_thread_add_method(st, "/bundle", NULL,
				bundle_handler, NULL);
    lo_server_thread_add_method(st, "/timestamp", NULL,
				timestamp_handler, NULL);
    lo_server_thread_add_method(st, "/jitter", "ti",
				jitter_handler, NULL);

    lo_server_thread_add_method(st, "/pattern/foo", NULL,
				pattern_handler, "foo");
    lo_server_thread_add_method(st, "/pattern/bar", NULL,
				pattern_handler, "bar");
    lo_server_thread_add_method(st, "/pattern/baz", NULL,
				pattern_handler, "baz");

    lo_server_thread_add_method(st, "/subtest", "i",
				subtest_handler, st);

    lo_server_thread_add_method(st, "/subtest-reply", "i",
				subtest_reply_handler, NULL);

    /* add method that will match any path and args */
    lo_server_thread_add_method(st, NULL, NULL, generic_handler, NULL);

    /* add method that will match the path /quit with no args */
    lo_server_thread_add_method(st, "/quit", "", quit_handler, NULL);

    /* check that the thread restarts */
    lo_server_thread_start(st);
    lo_server_thread_stop(st);
    lo_server_thread_start(st);

    if (lo_send(a, "/foo/bar", "ff", 0.12345678f, 23.0f) == -1) {
	printf("OSC error A %d: %s\n", lo_address_errno(a), lo_address_errstr(a));
	exit(1);
    }

    if (lo_send(a, "/foo/bar", "ff", 0.12345678f, 23.0f) == -1) {
	printf("OSC error B %d: %s\n", lo_address_errno(a), lo_address_errstr(a));
	exit(1);
    }

    test_validation(a);
    test_multicast(st);

    lo_send(a, "/", "i", 242);
    lo_send(a, "/pattern/", "i", 243);

#ifndef _MSC_VER  /* MS compiler refuses to compile this case */
    lo_send(a, "/bar", "ff", 0.12345678f, 1.0/0.0);
#endif
    lo_send(a, "/lotsofformats", "fisbmhtdSccTFNI", 0.12345678f, 123, "123",
	    btest, midi_data, 0x0123456789abcdefULL, tt, 0.9999, "sym",
	    'X', 'Y');
    lo_send(a, "/coerce", "fdihsS", 0.1f, 0.2, 123, 124LL, "aaa", "bbb");
    lo_send(a, "/coerce", "ffffss", 0.1f, 0.2f, 123.0, 124.0, "aaa", "bbb");
    lo_send(a, "/coerce", "ddddSS", 0.1, 0.2, 123.0, 124.0, "aaa", "bbb");
    lo_send(a, "/a/b/c/d", "sfsff", "one", 0.12345678f, "three",
	    -0.00000023001f, 1.0);
    lo_send(a, "/a/b/c/d", "b", btest);

    TEST(test_varargs(a, "/lotsofformats", "fisbmhtdSccTFNI", 0.12345678f, 123,
                      "123", btest, midi_data, 0x0123456789abcdefULL, tt,
                      0.9999, "sym", 'X', 'Y', LO_ARGS_END) == 0);

#ifdef __GNUC__
    // Note: Lack of support for variable-argument macros in non-GCC compilers
    //       does not allow us to test for these conditions.

    // too many args
    TEST(test_varargs(a, "/lotsofformats", "f", 0.12345678f, 123,
                      "123", btest, midi_data, 0x0123456789abcdefULL, tt,
                      0.9999, "sym", 'X', 'Y', LO_ARGS_END) != 0);
    // too many types
    TEST(test_varargs(a, "/lotsofformats", "fisbmhtdSccTFNI", 0.12345678f, 123,
                      "123", btest, midi_data, 0x0123456789abcdefULL, tt, 0.5,
                      LO_ARGS_END) != 0);
#endif

    // test lo_message_add
    m1 = lo_message_new();
    TEST(lo_message_add(m1, "fisbmhtdSccTFNI", 0.12345678f, 123, "123",
                        btest, midi_data, 0x0123456789abcdefULL, tt, 0.9999, "sym",
                        'X', 'Y') == 0);
    lo_send_message(a, "/lotsofformats", m1);
    lo_message_free(m1);
 
    lo_blob_free(btest);

    lo_send(a, "/pattern/*", "s", "a");
    lo_send(a, "/pattern/ba[rz]", "s", "b");

    server_url = lo_server_thread_get_url(st);
    sprintf(cmd, "." PATHDELIM "subtest %s &", server_url);
    if (system(cmd) != 0) {
	fprintf(stderr, "Cannot execute subtest command\n");
	exit(1);
    }
    system(cmd);
    free(server_url);

#ifdef WIN32
    Sleep(2000);
#else
    sleep(2);
#endif
    TEST(reply_count == 3);
    TEST(pattern_count == 5);
    TEST(subtest_count == 2);
    TEST(subtest_reply_count == 22);
    printf("\n");

    {
        lo_timetag t = {10,0xFFFFFFFC};
        b = lo_bundle_new(t);
    }
    m1 = lo_message_new();
    lo_message_add_string(m1, "abcdefghijklmnopqrstuvwxyz");
    lo_message_add_string(m1, "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
    lo_bundle_add_message(b, "/bundle", m1);
    lo_send_bundle(a, b);

    /* This should be safe for multiple copies of the same message. */
    lo_bundle_free_messages(b);

    {
        lo_timetag t = {1,2};
        b = lo_bundle_new(t);
    }
    m1 = lo_message_new();
    lo_message_add_int32(m1, 23);
    lo_message_add_string(m1, "23");
    lo_bundle_add_message(b, "/bundle", m1);
    m2 = lo_message_new();
    lo_message_add_string(m2, "24");
    lo_message_add_int32(m2, 24);
    lo_bundle_add_message(b, "/bundle", m2);
    lo_bundle_add_message(b, "/bundle", m1);

/* 
    lo_send_bundle(a, b);
    if (a->errnum) {
	printf("error %d: %s\n", a->errnum, a->errstr);
	exit(1);
    }
*/
    TEST(lo_send_bundle(a, b) == 88);

    /* Test freeing out-of-order copies of messages in a bundle. */
    lo_bundle_free_messages(b);

    {
        lo_timetag t = {10,0xFFFFFFFE};
        b = lo_bundle_new(t);
    }
    m1 = lo_message_new();
    lo_message_add_string(m1, "abcdefghijklmnopqrstuvwxyz");
    lo_message_add_string(m1, "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
    lo_bundle_add_message(b, "/bundle", m1);
    lo_send_bundle(a, b);
    lo_message_free(m1);
    lo_bundle_free(b);

    lo_timetag_now(&sched);

    sched.sec += 5;
    b = lo_bundle_new(sched);
    m1 = lo_message_new();
    lo_message_add_string(m1, "future");
    lo_message_add_string(m1, "time");
    lo_message_add_string(m1, "test");
    lo_bundle_add_message(b, "/bundle", m1);

    lo_send_bundle(a, b);
    lo_message_free(m1);
    lo_bundle_free(b);

    lo_send_timestamped(a, sched, "/bundle", "s", "lo_send_timestamped() test");

    /* test bundle timestamp ends up in message struct (and doesn't end up in
       unbundled messages) */
    lo_timetag_now(&sched);    
    lo_send_timestamped(a, sched, "/timestamp", "it", 1, sched);
    lo_send(a, "/timestamp", "it", 0, sched);

#define JITTER_ITS 25
    /* jitter tests */
    {
	lo_timetag stamps[JITTER_ITS];
	lo_timetag now;
	int i;

	for (i=0; i<JITTER_ITS; i++) {
	    lo_timetag_now(&now);
	    stamps[i] = now;
	    stamps[i].sec += 1;
	    stamps[i].frac = rand();
	    lo_send_timestamped(a, stamps[i], "/jitter", "ti", stamps[i], i);
	}
    }

#ifdef WIN32
    Sleep(2000);
#else
    sleep(2);
#endif

    lo_address_free(a);

    TEST(lo_server_thread_events_pending(st));

    while (lo_server_thread_events_pending(st)) {
	printf("pending events, wait...\n");
#ifdef WIN32
	fflush(stdout);
	Sleep(1000);
#else
	sleep(1);
#endif
    }
    
    TEST(bundle_count == 7);
    printf("\n");

    printf("bundle timing jitter results:\n"
	   "max jitter = %fs\n"
	   "avg jitter = %fs\n"
           "min jitter = %fs\n\n",
           jitter_max, jitter_total/(float)jitter_count, jitter_min);

    server_url = lo_server_get_url(s);

    lo_server_add_method(s, NULL, NULL, generic_handler, NULL);
    a = lo_address_new_from_url(server_url);
    TEST(lo_server_recv_noblock(s, 0) == 0);
    printf("Testing noblock API on %s\n", server_url);
    lo_send(a, "/non-block-test", "f", 23.0);

    count = 0;
    while (!lo_server_recv_noblock(s, 10) && count++ < 1000) { }
    if (count >= 1000) {
	printf("lo_server_recv_noblock() test failed\n");

	exit(1);
    }

    /* Delete methods */
    lo_server_thread_del_method(st, "/coerce", "dfhiSs");
    lo_server_del_method(s, NULL, NULL);

    lo_address_free(a);
    lo_server_free(s);
    free(server_url);

#ifndef WIN32
    { /* UNIX domain tests */
	lo_address ua;
	lo_server us;
	char *addr;

	unlink("/tmp/testlo.osc");
	us = lo_server_new_with_proto("/tmp/testlo.osc", LO_UNIX, error);
	ua = lo_address_new_from_url("osc.unix:///tmp/testlo.osc");
	TEST(lo_server_get_protocol(us) == LO_UNIX);
	TEST(lo_send(ua, "/unix", "f", 23.0) == 16);
	TEST(lo_server_recv(us) == 16);
	addr = lo_server_get_url(us);
	TEST(!strcmp("osc.unix:////tmp/testlo.osc", addr));
	free(addr);
	lo_address_free(ua);
	ua = lo_address_new_with_proto(LO_UNIX, NULL, "/tmp/testlo.osc");
	TEST(lo_send(ua, "/unix", "f", 23.0) == 16);
	TEST(lo_server_recv(us) == 16);
	lo_server_free(us);
	lo_address_free(ua);
    }
#endif

    { /* TCP tests */
	lo_address ta;
	lo_server ts;
	char *addr;

	ts = lo_server_new_with_proto(NULL, LO_TCP, error);
	addr = lo_server_get_url(ts);
	ta = lo_address_new_from_url(addr);
	if (lo_address_errno(ta)) {
	    printf("err: %s\n", lo_address_errstr(ta));
	    exit(1);
	}
	TEST(lo_server_get_protocol(ts) == LO_TCP);
	TEST(lo_send(ta, "/tcp", "f", 23.0) == 16);
	TEST(lo_send(ta, "/tcp", "f", 23.0) == 16);
	TEST(lo_server_recv(ts) == 16);
	TEST(lo_server_recv(ts) == 16);
	free(addr);
	lo_server_free(ts);
	lo_address_free(ta);
    }

    server_url = lo_server_thread_get_url(st);
    a = lo_address_new_from_url(server_url);
    /* exit */
    lo_send(a, "/quit", NULL);
    lo_address_free(a);

    while (!done) {
#ifdef WIN32
    Sleep(1);
#else
	usleep(1000);
#endif
    }

    lo_server_thread_free(st);
    free(server_url);


    return 0;
}
Example #7
0
void *lo_server_recv_raw_stream(lo_server s, size_t *size)
{
    struct sockaddr_storage addr;
    socklen_t addr_len = sizeof(addr);
    char buffer[LO_MAX_MSG_SIZE];
    int32_t read_size;
    int ret=0, i;
    void *data = NULL;
    int sock = -1;
    int repeat = 1;
#ifdef HAVE_SELECT
#ifndef HAVE_POLL
    fd_set ps;
    int nfds=0;
#endif
#endif

    /* check sockets in reverse order so that already-open sockets
     * have priority.  this allows checking for closed sockets even
     * when new connections are being requested.  it also allows to
     * continue looping through the list of sockets after closing and
     * deleting a socket, since deleting sockets doesn't affect the
     * order of the array to the left of the index. */

#ifdef HAVE_POLL
    for (i=0; i < s->sockets_len; i++) {
        s->sockets[i].events = POLLIN | POLLPRI;
        s->sockets[i].revents = 0;
    }

    poll(s->sockets, s->sockets_len, -1);

    for (i=(s->sockets_len-1); i >= 0; --i) {
        if (s->sockets[i].revents == POLLERR
            || s->sockets[i].revents == POLLHUP)
        {
            if (i>0) {
                close(s->sockets[i].fd);
                lo_server_del_socket(s, i, s->sockets[i].fd);
                continue;
            }
            else
                return NULL;
        }
        if (s->sockets[i].revents) {
            sock = s->sockets[i].fd;

#else
#ifdef HAVE_SELECT
    if(!initWSock()) return NULL;

    FD_ZERO(&ps);
    for (i=(s->sockets_len-1); i >= 0; --i) {
        FD_SET(s->sockets[i].fd, &ps);
        if (s->sockets[i].fd > nfds)
            nfds = s->sockets[i].fd;
    }

    if (select(nfds+1,&ps,NULL,NULL,NULL) == SOCKET_ERROR)
        return NULL;

    for (i=0; i < s->sockets_len; i++) {
        if (FD_ISSET(s->sockets[i].fd, &ps)) {
            sock = s->sockets[i].fd;

#endif
#endif

    if (sock == -1 || !repeat)
        return NULL;

    /* zeroeth socket is listening for new connections */
    if (sock == s->sockets[0].fd) {
        sock = accept(sock, (struct sockaddr *)&addr, &addr_len);
        i = lo_server_add_socket(s, sock);

        /* only repeat this loop for sockets other than the listening
         * socket,  (otherwise i will be wrong next time around) */
        repeat = 0;
    }

    if (i<0) {
        close(sock);
        return NULL;
    }

    ret = recv(sock, &read_size, sizeof(read_size), 0);
    read_size = ntohl(read_size);
    if (read_size > LO_MAX_MSG_SIZE || ret <= 0) {
        close(sock);
        lo_server_del_socket(s, i, sock);
        if (ret > 0)
            lo_throw(s, LO_TOOBIG, "Message too large", "recv()");
        continue;
    }
    ret = recv(sock, buffer, read_size, 0);
    if (ret <= 0) {
        close(sock);
        lo_server_del_socket(s, i, sock);
        continue;
    }

    /* end of loop over sockets: successfully read data */
    break;
        }
    }

    data = malloc(ret);
    memcpy(data, buffer, ret);

    if (size) *size = ret;

    return data;
}

int lo_server_wait(lo_server s, int timeout)
{
    int sched_timeout = lo_server_next_event_delay(s) * 1000;
    int i;
#ifdef HAVE_SELECT
#ifndef HAVE_POLL
    fd_set ps;
    struct timeval stimeout;
#endif
#endif

#ifdef HAVE_POLL
    for (i=0; i < s->sockets_len; i++) {
        s->sockets[i].events = POLLIN | POLLPRI | POLLERR | POLLHUP;
        s->sockets[i].revents = 0;
    }

    poll(s->sockets, s->sockets_len,
         timeout > sched_timeout ? sched_timeout : timeout);

    if (lo_server_next_event_delay(s) < 0.01)
        return 1;

    for (i=0; i < s->sockets_len; i++) {
        if (s->sockets[i].revents == POLLERR
            || s->sockets[i].revents == POLLHUP)
            return 0;
        if (s->sockets[i].revents)
            return 1;
    }
#else
#ifdef HAVE_SELECT
    int res,to,nfds=0;

    if(!initWSock()) return 0;

    to = timeout > sched_timeout ? sched_timeout : timeout;
    stimeout.tv_sec = to/1000;
    stimeout.tv_usec = (to%1000)*1000;

    FD_ZERO(&ps);
    for (i=0; i < s->sockets_len; i++) {
        FD_SET(s->sockets[i].fd,&ps);
        if (s->sockets[i].fd > nfds)
            nfds = s->sockets[i].fd;
    }

    res = select(nfds+1,&ps,NULL,NULL,&stimeout);

    if(res == SOCKET_ERROR)
        return 0;

    if (res || lo_server_next_event_delay(s) < 0.01)
	    return 1;
#endif
#endif

    return 0;
}

int lo_server_recv_noblock(lo_server s, int timeout)
{
    int result = lo_server_wait(s,timeout);
    if (result>0) {
      return lo_server_recv(s);
    } else {
      return 0;
    }
}