Example #1
0
int main(int argc, char *argv[]) {
	if (argc < 4) {
		printf("Syntax: %s <TOP local IP> <BOT local IP> <forward IP>\n", argv[0]);
		return 1;
	}

	struct in_addr top_ip;
	struct in_addr bot_ip;
	struct in_addr fwd_ip;
	struct in_addr netmask;

	inet_aton(argv[1], &top_ip);
	inet_aton(argv[2], &bot_ip);
	inet_aton(argv[3], &fwd_ip);
	inet_aton("255.255.255.0", &netmask);

	uint16_t port = 7653;

	printf("EthFwd: TOP IP '%s', BOT IP '%s', Forward IP '%s', port %u\n", argv[1], argv[2], argv[3], port);

	max_file_t *maxfile = EthFwd_init();
	max_engine_t * engine = max_load(maxfile, "*");

	max_ip_config(engine, MAX_NET_CONNECTION_QSFP_TOP_10G_PORT1, &top_ip, &netmask);
	max_ip_config(engine, MAX_NET_CONNECTION_QSFP_BOT_10G_PORT1, &bot_ip, &netmask);

	struct ether_addr local_mac2, remote_mac2;
	max_arp_lookup_entry(engine, MAX_NET_CONNECTION_QSFP_BOT_10G_PORT1, &fwd_ip, &remote_mac2);
	max_eth_get_default_mac_address(engine, MAX_NET_CONNECTION_QSFP_BOT_10G_PORT1, &local_mac2);

	uint64_t localMac = 0, forwardMac = 0;
	memcpy(&localMac, &local_mac2, 6);
	memcpy(&forwardMac, &remote_mac2, 6);

	max_config_set_bool(MAX_CONFIG_PRINTF_TO_STDOUT, true);

	max_actions_t *action = max_actions_init(maxfile, NULL);
	max_set_uint64t(action, "fwdKernel", "localIp", bot_ip.s_addr);
	max_set_uint64t(action, "fwdKernel", "forwardIp", fwd_ip.s_addr);
	max_set_uint64t(action, "fwdKernel", "localMac", localMac);
	max_set_uint64t(action, "fwdKernel", "forwardMac", forwardMac);
	max_set_uint64t(action, "fwdKernel", "port", port);
	max_run(engine, action);

	printf("JDFE Running.\n");
	getchar();

	max_unload(engine);
	max_file_free(maxfile);

	printf("Done.\n");
	return 0;
}
int main(int argc, char *argv[])
{
	if (argc != 3) {
		printf("Usage: %s <dfe_ip> <netmask>\n", argv[0]);
		return 1;
	}

	uint16_t Nsockets = 1;
	const int port = 80;
	struct in_addr dfe_ip;
	inet_aton(argv[1], &dfe_ip);
	struct in_addr netmask;
	inet_aton(argv[2], &netmask);

	// initialization files for crcIndex table, generated by init_code
	char fileCrcIndex1[] = "./results/romCrcIndex1_init.html";
	char fileCrcIndex2[] = "./results/romCrcIndex2_init.html";

	// LMEM initialization file location, generated by init_code
	char fileLmem[] = "./results/lmem_generated_file.html";

	uint64_t *arrCrc1;
	uint64_t *arrCrc2;
	long Lcrc;

	FILE *fpCrc1 = fopen(fileCrcIndex1, "rb");
	FILE *fpCrc2 = fopen(fileCrcIndex2, "rb");
	FILE *fpLmem = fopen(fileLmem, "rb");

	if (!(fpCrc1 && fpCrc2 && fpLmem)) {
		printf("Error with file\n");
		exit(0);
	}

	// obtain file size
	fseek(fpCrc1, 0, SEEK_END);
	Lcrc = ftell(fpCrc1);
	rewind(fpCrc1);

	fillRomCrcIndex(fpCrc1, &arrCrc1, Lcrc);
	fillRomCrcIndex(fpCrc2, &arrCrc2, Lcrc);

	printf("Preparing for init() and max_load()\n");
	max_file_t *maxfile = httpserver_init();
	max_engine_t * engine = max_load(maxfile, "*");
	printf("Done\n");

	max_actions_t *actions = max_actions_init(maxfile, NULL);

	int romDepthCrc = Lcrc / 8;
	for (uint32_t i = 0; i < romDepthCrc; i++) {
		max_set_mem_uint64t(actions, "CrcIndexTable", "romCrcIndex1", i, arrCrc1[i]);
		max_set_mem_uint64t(actions, "CrcIndexTable", "romCrcIndex2", i, arrCrc2[i]);
	}

	max_run(engine, actions);
	max_actions_free(actions);

	long L;
	size_t result;
	uint64_t* arrLmem;

	// obtain file size
	fseek(fpLmem, 0, SEEK_END);
	L = ftell(fpLmem);
	rewind(fpLmem);

	double diff = ceil(L / 8.0) - L / 8.0; // NULL character padding

	if (diff != 0) {
		L = (int) ceil(L / 8.0) * 8;
	}

	// allocate memory to contain the whole file
	size_t Nelem = sizeof(uint64_t) * (L / 8);
	arrLmem = (uint64_t*) malloc(Nelem);

	result = fread(arrLmem, 1, L, fpLmem); 

	int romDepth = L / 8;

	int burstLengthInBytes = max_get_burst_size(maxfile, "cmd_tolmem");
	inline int max(int a, int b) {
		return a > b ? a : b;
	}
	;

	const int size = romDepth;
	int sizeBytes = size * sizeof(uint64_t);
	uint64_t *inData; 


	printf("Writing to DFE memory.\n");
	inData = arrLmem;


	writeDataToLMem(inData, size, sizeBytes, burstLengthInBytes, engine, maxfile);
		printf("Done\n");



	max_ip_config(engine, MAX_NET_CONNECTION_QSFP_BOT_10G_PORT1, &dfe_ip, &netmask);

	//all sockets MUST be created before first call to max_tcp_connect or max_tcp_listen
	max_tcp_socket_t *(dfe_socket[Nsockets]);
	uint16_t socketNumber[Nsockets];

	for (int i = 0; i < Nsockets; i++) {
		//dfe_socket[i] = max_tcp_create_socket(engine, "tcp_ISCA_QSFP_BOT_10G_PORT1");
		dfe_socket[i] = max_tcp_create_socket_with_number(engine, "tcp_ISCA_QSFP_BOT_10G_PORT1", i);
		socketNumber[i] = max_tcp_get_socket_number(dfe_socket[i]);
		printf("Socket %d was assigned socket number %u\n", i, socketNumber[i]);
	}

	for (int i = 0; i < Nsockets; i++) {
		max_tcp_listen(dfe_socket[i], port + i);
		max_tcp_await_state(dfe_socket[i], MAX_TCP_STATE_LISTEN, NULL);
	}

	printf("CPU code: Total %u socket(s), listening on the port(s) %u-%u\n\n", Nsockets, port, port + Nsockets - 1);



	void *read_ptr;
	uint8_t *read_buffer;
	max_llstream_t *read_llstream;
	uint64_t *byteNumber;
	printf("CPU code: Setting up 'toCpuByteNumber' stream.\n");
	int Nslots_byteNumber = 512;
	size_t tCBN_buffer_size = Nslots_byteNumber * 16;
	posix_memalign((void *) &read_buffer, 4096, tCBN_buffer_size);
	read_llstream = max_llstream_setup(engine, "toCpuFileSizeBytes", Nslots_byteNumber, 16, read_buffer);




	uint8_t *read_buffer_socket;
	max_llstream_t *read_llstream_socket;
	printf("CPU code: Setting up 'toCpuSocketNumber' stream.\n");
	int Nslots_socketNumber = 512;
	size_t tCSB_buffer_size = Nslots_socketNumber * 16;
	posix_memalign((void *) &read_buffer_socket, 4096, tCSB_buffer_size);
	read_llstream_socket = max_llstream_setup(engine, "toCpuSocketNumber", Nslots_socketNumber, 16, read_buffer_socket);
	void *read_ptr_socket_slot;


	uint16_t ti = 10;
	while(ti > 0)
	{
		printf("CPU code: time=%u, waiting file size and socket numbers stream data to be sent to CPU\n", ti);
		usleep(1000*1000*1);
		ti--;
	}

	//while(1);


	uint64_t num_rx_bytes;
	uint64_t num_tx_bytes;
	uint8_t session_id;
	while (1) {

		//part 1: first wait to receive LengthBytes number

		printf("CPU code: PART 1 - waiting to receive LengthBytes number\n");

		int FoundByteNumber = 0;
		ti=0;
		while (FoundByteNumber != 1) //first wait to receive LengthBytes number
		{
			usleep(1000*1000*1);

			for (int i = 0; i < Nsockets; i++) {
				max_tcp_get_num_bytes_received(dfe_socket[i], &num_rx_bytes);
				max_tcp_get_num_bytes_transmitted(dfe_socket[i], &num_tx_bytes, &session_id);
				printf("CPU code: waiting, time=%u, port=%u, socket=%i, max_tcp_get_num_bytes_received=%llu, max_tcp_get_num_bytes_transmitted=%llu\n", ti, port + i, i, (long long unsigned int) num_rx_bytes, (long long unsigned int) num_tx_bytes);
			}
			ti++;

			uint8_t ii = max_llstream_read(read_llstream, 1, &read_ptr);
			if (ii) {
				byteNumber = (uint64_t*) read_ptr;
				printf("CPU code: number of slots found to contain new data=%u,  fileSizeBytes=%u\n", ii, (unsigned int) *byteNumber);
				max_llstream_read_discard(read_llstream, 1);
				FoundByteNumber = 1;
			}
		}

		//part 2: receive total number of data transfered

		printf("CPU code: PART 2 - receive socket number\n");
		while (max_llstream_read(read_llstream_socket, 1, &read_ptr_socket_slot) == 0)
			;

		
		uint16_t socket_returned = (uint16_t) *((uint16_t*) read_ptr_socket_slot); //event->socketID;
		unsigned int fileBytes = (unsigned int) *byteNumber;

		printf("CPU code: fileBytes=%u, socket_returned=%u\n", fileBytes, socket_returned);

		ti = 0;
		while (1) {
			{
				for (int i = 0; i < Nsockets; i++)
				{
					max_tcp_get_num_bytes_received(dfe_socket[i], &num_rx_bytes);
					max_tcp_get_num_bytes_transmitted(dfe_socket[i], &num_tx_bytes, &session_id);
					printf("CPU code: time=%i, port=%u, socket=%i, max_tcp_get_num_bytes_received=%llu, max_tcp_get_num_bytes_transmitted=%llu\n", ti, port + i, i, (long long unsigned int) num_rx_bytes, (long long unsigned int) num_tx_bytes);
				}
				ti++;
				printf("\n");

				max_tcp_get_num_bytes_transmitted(dfe_socket[socket_returned], &num_tx_bytes, &session_id);
				printf("CPU code: fileSizeBytes=%u, socketReturned=%u, num_tx_bytes=%llu\n", fileBytes, socket_returned, (long long unsigned int) num_tx_bytes);

			}

			//usleep(1000*100);
			//printf("CPU code: While LOOP, socket_returned=%u, fileBytes=%u, num_tx_bytes(max_tcp_get_num_bytes_transmitted)=%llu\n", socket_returned, fileBytes, (long long unsigned int) num_tx_bytes);
			if (num_tx_bytes == fileBytes) {
				//usleep(1000*1000*3);
				printf("CPU code: MATCH num_tx_bytes==fileBytes, socket_returned=%u, fileBytes=%u, num_tx_bytes(max_tcp_get_num_bytes_transmitted)=%llu\n", socket_returned, fileBytes, (long long unsigned int) num_tx_bytes);
				printf("CPU code: Closing socket=%u\n", socket_returned);
				max_tcp_close(dfe_socket[socket_returned]);
					//max_tcp_close_mode_t close_mode=MAX_TCP_CLOSE_ABORT_RESET;
					//max_tcp_close_advanced(dfe_socket[socket_returned],close_mode);

				printf("CPU code: Waiting for MAX_TCP_STATE_CLOSED\n");
				max_tcp_await_state(dfe_socket[socket_returned], MAX_TCP_STATE_CLOSED, NULL);

				printf("CPU code: Set LISTEN state\n");
				max_tcp_listen(dfe_socket[socket_returned], port);

				printf("CPU code: Waiting for MAX_TCP_STATE_LISTEN\n");
				max_tcp_await_state(dfe_socket[socket_returned], MAX_TCP_STATE_LISTEN, NULL);

				printf("CPU code: Again opened socket=%u\n", socket_returned);

				printf("\nCPU code: State of rx/tx after socket closing\n");


				break;
			}

			usleep(1000*1000*1);
		}
	}

	for (int i = 0; i < Nsockets; i++) {
		max_tcp_close(dfe_socket[i]);
		printf("max_tcp_close(dfe_socket[i])");
	}

	max_unload(engine);
	printf("max_unload(engine)");
	max_file_free(maxfile);
	printf("max_file_free(maxfile)");

	printf("The end\n");

	return 0;

}
Example #3
0
int 
main(int argc, char *argv[]) 
{
    if(argc != 4) 
    {
        printf("Usage: %s <dfe_ip> <cpu_ip> <netmask>\n", argv[0]);
        return 1;
    }

    struct in_addr dfe_ip;
    inet_aton(argv[1], &dfe_ip);
    struct in_addr cpu_ip;
    inet_aton(argv[2], &cpu_ip);
    struct in_addr netmask;
    inet_aton(argv[3], &netmask);
    const int port = 5008;
    
    /* Create DFE Socket, then listen */
    max_file_t *maxfile = FieldAccumulatorTCP_init();
    max_engine_t *engine = max_load(maxfile, "*");
    max_ip_config(engine, MAX_NET_CONNECTION_CH2_SFP1, &dfe_ip, &netmask);
    
    max_udp_socket_t *dfe_socket = max_udp_create_socket(engine, "udp_ch2_sfp1");
    max_udp_bind(dfe_socket, port);
    max_udp_connect(dfe_socket, &cpu_ip, port);
    
    int cpu_socket = create_cpu_udp_socket(&cpu_ip, &dfe_ip, port);
    
    FILE *stream = fopen("source_data1.csv", "r");
    char line[BUFFERSIZE];

   // char *to_be_free = line;

    /* Ignore Header File */
    fgets(line, BUFFERSIZE, stream);
    printf(line);

    while (fgets(line, BUFFERSIZE, stream))
    {
    	struct input_data data;
    	parse(line,&data);
    	printf("\n Instrument id = %d \n level = %d \n side = %d \n Quantity = %d \n Price = %d",data.instrument_id,data.level,data.side,data.quantity,data.price);
    	calculateDeltas(cpu_socket, &data);
    }

//    /* Set Value A */
//    data.instrument_id = 0;
//    data.level         = 0;
//    data.side          = 0;
//    data.quantity      = 5;
//    data.price         = 10;
//    calculateDeltas(cpu_socket, &data);
//
//    /* Set B*/
//    data.instrument_id = 1;
//    data.level         = 0;
//    data.side          = 1;
//    data.quantity      = 3;
//    data.price         = 4;
//    calculateDeltas(cpu_socket, &data);
//
//    /* Hold */
//    data.instrument_id = 1;
//    data.level         = 0;
//    data.side          = 1;
//    data.quantity      = 5;
//    data.price         = 6;
//    calculateDeltas(cpu_socket, &data);
//
//    /* Set AB */
//    data.instrument_id = 2;
//    data.level         = 0;
//    data.side          = 1;
//    data.quantity      = 7;
//    data.price         = 8;
//    calculateDeltas(cpu_socket, &data);
    
    max_udp_close(dfe_socket);
    max_unload(engine);
    max_file_free(maxfile);
    
    return 0;
}
int main(int argc, char *argv[]) {
	if(argc < 3) {
		printf("Usage: $0 dfe_ip cpu_ip\n");
		return 1;
	}

	struct in_addr dfe_ip;
	inet_aton(argv[1], &dfe_ip);
	struct in_addr cpu_ip;
	inet_aton(argv[2], &cpu_ip);
	struct in_addr netmask;
	inet_aton("255.255.255.0", &netmask);
	const int port = 5007;

	max_file_t *maxfile = Tracker_init();
	max_engine_t * engine = max_load(maxfile, "*");


	max_config_set_bool(MAX_CONFIG_PRINTF_TO_STDOUT, true);

	max_actions_t *actions = max_actions_init(maxfile, NULL);
	char regName[32];
	for (int i=0; i < 1024; i++) {
		sprintf(regName, "filter_%d", i);
		if (i == 150) {
			max_set_uint64t(actions, "filteringKernel", regName, 0xCC /* a value to match... */);
		} else {
			max_set_uint64t(actions, "filteringKernel", regName, 0x4D1B /* or any value you want */);
		}
	}
	max_run(engine, actions);
	max_actions_free(actions);


	void *buffer;
	size_t bufferSize = 4096 * 512;
	posix_memalign(&buffer, 4096, bufferSize);

	max_framed_stream_t *toCpu = max_framed_stream_setup(engine, "toCPU", buffer, bufferSize, -1);

	/*
	 * This executable both creates a normal Linux UDP socket as well as a DFE UDP Socket.
	 * We then exchange data between the two.
	 */

	// DFE Socket
	max_ip_config(engine, MAX_NET_CONNECTION_QSFP_TOP_10G_PORT1, &dfe_ip, &netmask);
	max_udp_socket_t *dfe_socket = max_udp_create_socket(engine, "udpTopPort1");
	max_udp_bind(dfe_socket, port);
	max_udp_connect(dfe_socket, &cpu_ip, port);


	// Linux Socket
	int cpu_socket = create_cpu_udp_socket(&cpu_ip, &dfe_ip, port);

	printf("Sending test frame...\n");
	sendTestFrame(cpu_socket);

	printf("Waiting for kernel response...\n"); fflush(stdout);

	void *f;
	size_t fsz;
	size_t numMessageRx = 0;
	uint8_t received_data[512];
	while (numMessageRx < NUM_MESSAGES_EXPECTED) {
		if (max_framed_stream_read(toCpu, 1, &f, &fsz) == 1) {
			printf("CPU: Got output frame - size %zd - NumMsg = %zd!\n", fsz, numMessageRx); // Frame size would be rounded up to the next 8 bytes.

			memcpy(received_data, f, fsz);
			numMessageRx++;
			max_framed_stream_discard(toCpu, 1);
		} else 	usleep(10);
	}

	max_udp_close(dfe_socket);
	max_unload(engine);
	max_file_free(maxfile);

	printf("Done.\n"); fflush(stdout);
	return 0;
}
int main(int argc, char *argv[]) {
	if(argc < 3) {
		printf("Usage: $0 dfe_ip remote_ip\n");
		return 1;
	}

	struct in_addr dfe_ip;
	inet_aton(argv[1], &dfe_ip);
	struct in_addr remote_ip;
	inet_aton(argv[2], &remote_ip);
	struct in_addr netmask;
	inet_aton("255.255.255.0", &netmask);
	const int in_port = 2000;
	const int out_port = 2000;

//	struct in_addr mcastaddr;
//	inet_aton("224.0.0.1", &mcastaddr);

	max_file_t *maxfile = SignExtWithPatternMatching_init();
	max_engine_t * engine = max_load(maxfile, "*");

	max_config_set_bool(MAX_CONFIG_PRINTF_TO_STDOUT, true);

	max_actions_t *actions = max_actions_init(maxfile, NULL);

	max_run(engine, actions);
	max_actions_free(actions);


	void *buffer;
	size_t bufferSize = 4096 * 512;
	posix_memalign(&buffer, 4096, bufferSize);

	max_framed_stream_t *toCpu = max_framed_stream_setup(engine, "toCPU", buffer, bufferSize, -1);

	max_ip_config(engine, MAX_NET_CONNECTION_QSFP_TOP_10G_PORT1, &dfe_ip, &netmask);
	max_udp_socket_t *dfe_socket = max_udp_create_socket(engine, "udpTopPort1");
//	max_ip_multicast_join_group(engine, MAX_NET_CONNECTION_QSFP_TOP_10G_PORT1, &mcastaddr);
//	max_udp_bind_ip(dfe_socket, &mcastaddr, in_port);
	max_udp_bind(dfe_socket, in_port);
	max_udp_connect(dfe_socket, &remote_ip, out_port);

	printf("Listening on %s in_port %d\n", argv[1], in_port);

	printf("Waiting for kernel response...\n"); fflush(stdout);

	void *f;
	size_t fsz;
	size_t numMessageRx = 0;
	while (1) {
		if (max_framed_stream_read(toCpu, 1, &f, &fsz) == 1) {
			numMessageRx++;

			printf("CPU: Got output frame %zd - size %zd bytes\n", numMessageRx, fsz);

			uint64_t *w = f;
			for (size_t i=0; i < 3; i++) {
				printf("Frame [%zd] Word[%zd]: 0x%lx\n", numMessageRx, i, w[i]);
			}


			max_framed_stream_discard(toCpu, 1);
		} else 	usleep(10);
	}

//	max_ip_multicast_leave_group(engine, MAX_NET_CONNECTION_QSFP_TOP_10G_PORT1, &mcastaddr);
	max_udp_close(dfe_socket);
	max_unload(engine);
	max_file_free(maxfile);

	printf("Done.\n"); fflush(stdout);
	return 0;
}
Example #6
0
int main(int argc, char *argv[]) {
	if(argc != 4) {
		printf("Usage: %s <topIp>:<topNetmask> <botIp>:<botNetmask> <remoteIp>:<remotePort>\n", argv[0]);
		return 1;
	}

	char top_ip_str[16];
	char top_netmask_str[16];
	char bot_ip_str[16];
	char bot_netmask_str[16];
	char remote_ip_str[16];
	uint remote_port;

	if (sscanf(argv[1], "%15[0-9.]:%15[0-9.]", top_ip_str, top_netmask_str) != 2) {
		printf("Failed to parse top port IP and netmask");
		return 1;
	}

	if (sscanf(argv[2], "%15[0-9.]:%15[0-9.]", bot_ip_str, bot_netmask_str) != 2) {
		printf("Failed to parse bot port IP and netmask");
		return 1;
	}

	if (sscanf(argv[3], "%15[0-9.]:%u", remote_ip_str, &remote_port) != 2) {
		printf("Failed to parse remote IP and port");
		return 1;
	}

	struct in_addr top_ip      = { inet_addr(top_ip_str) };
	struct in_addr top_netmask = { inet_addr(top_netmask_str) };
	struct in_addr bot_ip      = { inet_addr(bot_ip_str) };
	struct in_addr bot_netmask = { inet_addr(bot_netmask_str) };
	struct in_addr remote_ip   = { inet_addr(remote_ip_str) };

	max_file_t*   maxfile = CmeTrading_init();
	max_engine_t* engine  = max_load(maxfile, "*");

	max_ip_config(engine, MAX_NET_CONNECTION_QSFP_TOP_10G_PORT1, &top_ip, &top_netmask);
	max_ip_config(engine, MAX_NET_CONNECTION_QSFP_BOT_10G_PORT1, &bot_ip, &bot_netmask);

	max_cme_mdp_handle_t* mdp;
	if (max_cme_mdp_open_handler(engine, &mdp, "md", "templates_FixBinary.xml", "config.xml")) {
		printf("Failed to open market data handler.\nError trace: %s\n", max_cme_mdp_get_error_trace(mdp));
		return 1;
	}

	max_cme_ilink_handle_t* ilink;
	// The NULL arguments here are the iLink output folders. Passing NULL disables iLink logging and session persistence.
	if (max_cme_ilink_open_handler(&ilink, engine, "orderEntry", NULL, NULL)) {
		printf("Failed to open iLink handler.\nError trace: %s\n", max_cme_ilink_get_error_trace(ilink));
		return 1;
	}

	struct timeval timeout = {5, 0}; // 5 seconds
	max_cme_ilink_session_t* session = max_cme_ilink_session_connect(ilink, &remote_ip, remote_port, &timeout);
	if (!session) {
		printf("Failed to connect iLink session.\nError trace: %s\n", max_cme_ilink_get_error_trace(ilink));
		return 1;
	}

	const char* session_id    = "ABC";
	const char* sender_sub_id = "subID";
	const char* firm_id       = "123";
	const char* location_id   = "GB";
	const char* password      = "******";
	const int   heartbeat_interval = 30;

	if (max_cme_ilink_session_login(
			session,
			session_id,
			sender_sub_id,
			firm_id,
			MAXCMEILINK_CUSTOMERORFIRM_CUSTOMER,
			MAXCMEILINK_CTICODE_1,
			location_id,
			password,
			MAXELER_APPLICATION_SYSTEM_NAME,
			MAXELER_TRADING_SYSTEM_VERSION,
			MAXELER_APPLICATION_SYSTEM_VENDOR,
			heartbeat_interval,
			&timeout))
	{
		printf("Failed to login iLink session.\nError trace: %s\n", max_cme_ilink_get_error_trace(ilink));
		return 1;
	}

	// allow iLink to send some orders from the hardware
	if (max_cme_ilink_alloc_orders(session, 512)) {
		printf("Failed to alloc orders.\nError trace: %s\n", max_cme_ilink_get_error_trace(ilink));
		return 1;
	}

	const uint channel_id   = 342;
	const uint security_id  = 295722;
	const uint market_depth = 10;

	const max_cme_mdp_channel_t* channel = max_cme_mdp_get_channel_by_id(mdp, channel_id);
	if (!channel) {
		printf("Failed to find channel with id '%d'.\nError trace: %s\n", channel_id, max_cme_mdp_get_error_trace(mdp));
		return 1;
	}

	max_cme_mdp_instrument_t* instrument = max_cme_mdp_new_instrument(mdp, channel, security_id, market_depth);
	if (!instrument) {
		printf("Failed to create new instrument.\nError trace: %s\n", max_cme_mdp_get_error_trace(mdp));
		return 1;
	}

	if (max_cme_mdp_add_instrument(mdp, instrument) < 0) {
		printf("Failed to add instrument.\nError trace: %s\n", max_cme_mdp_get_error_trace(mdp));
		return 1;
	}

	// Don't wait for iLink events here as market data events might pile up.
	struct timeval no_wait = {0};

	while (1) {
		int activity = 0;

		max_cme_mdp_event_t* md_event;
		while (max_cme_mdp_get_next_event(mdp, &md_event) == 1) {
			max_cme_mdp_print_event(md_event);
			max_cme_mdp_destroy_event(md_event);
			activity = 1;
		}

		max_cme_ilink_session_event_t session_event;
		while (max_cme_ilink_get_next_session_event(session, &session_event, &no_wait) == 1) {
			max_cme_ilink_display_session_event(&session_event);
			activity = 1;
		}

		max_cme_ilink_order_event_t order_event;
		while (max_cme_ilink_get_next_order_event(session, &order_event, &no_wait) == 1) {
			max_cme_ilink_display_order_event(&order_event);
			activity = 1;
		}

		if (!activity)
			usleep(1000);
	}

	return 0;
}