static void top(void)
{
xenstat_domain **domains;
unsigned int i, num_domains = 0;
/* Now get the node information */
if (prev_node != NULL)
xenstat_free_node(prev_node);
prev_node = cur_node;
cur_node = xenstat_get_node(xhandle, XENSTAT_ALL);
if (cur_node == NULL)
fail("Failed to retrieve statistics from libxenstat\n");
/* dump summary top information */
if (!batch)
do_summary();
/* Count the number of domains for which to report data */
num_domains = xenstat_node_num_domains(cur_node);
domains = calloc(num_domains, sizeof(xenstat_domain *));
if(domains == NULL)
fail("Failed to allocate memory\n");
for (i=0; i < num_domains; i++)
domains[i] = xenstat_node_domain_by_index(cur_node, i);
/* Sort */
qsort(domains, num_domains, sizeof(xenstat_domain *),
(int(*)(const void *, const void *))compare_domains);
if(first_domain_index >= num_domains)
first_domain_index = num_domains-1;
for (i = first_domain_index; i < num_domains; i++) {
if(!batch && current_row() == lines()-1)
break;
if (i == first_domain_index || repeat_header)
do_header();
do_domain(domains[i]);
if (show_vcpus)
do_vcpu(domains[i]);
if (show_networks)
do_network(domains[i]);
if (show_vbds)
do_vbd(domains[i]);
if (show_tmem)
do_tmem(domains[i]);
}
if (!batch)
do_bottom_line();
free(domains);
}
/*}}}*/
static void do_fragment(struct data *d, struct micro *frag)/*{{{*/
{
do_network(d, 2, &frag->g2);
do_network(d, 3, &frag->g3);
}
int main(int argc, char** argv) {
printf("haltestelle built <%s %s> version %s\n", __DATE__, __TIME__, VERSION);
if(argc < 5) {
fprintf(stderr, "usage: %s <designation> <busfarhn_host> <busfarhn_port> <serialport>\n", argv[0]);
exit(-1);
}
/*global*/ designation = argv[1];
/*global*/ busfarhn_host = argv[2];
/*global*/ busfarhn_port = atoi(argv[3]);
char* serialport = argv[4];
/*global*/ sockfd = start_socket();
if(connect_to_busfarhn(designation) != 0) {
fprintf(stderr, "[ERROR] connecting to %s:%d failed\n", busfarhn_host, busfarhn_port);
return -1;
}
#ifdef USE_SERIAL
#ifdef SERIAL_IS_A_FILE
printf("%s is a FILE\n", serialport);
#elif defined SERIAL_IS_A_ATH0
printf("%s is a SERIAL PORT (ATH style)\n", serialport);
#else
printf("%s is a SERIAL PORT\n", serialport);
#endif
#else
printf("WARNING: NOT USING THE SERIAL PORT\n");
#endif
printf("[STARTUP] connected to %s:%i with designation %s\n", busfarhn_host, busfarhn_port, designation);
#ifdef USE_SERIAL
#ifdef SERIAL_IS_A_FILE
/*global*/ serialfd = fopen(serialport, "rw");
#elif defined SERIAL_IS_A_ATH0
/*global*/ serialfd = open(serialport, O_RDWR);
#else
/*global*/ serialfd = open(serialport, O_RDWR | O_NOCTTY | O_SYNC);
#endif
if (serialfd < 0) {
fprintf(stderr, "error %d opening %s: %s", errno, serialport, strerror (errno));
return;
}
#if !(defined SERIAL_IS_A_FILE || defined SERIAL_IS_A_ATH0)
set_interface_attribs (serialfd, SERIAL_BAUDRATE, 0); // set speed to 115,200 bps, 8n1 (no parity)
set_blocking (serialfd, 0); // set no blocking
#endif
#endif
hs_startup();
char netbuf[MAXBUFLEN];
unsigned int netbufpos = 0;
struct sockaddr_storage their_addr;
socklen_t addr_len;
#ifdef USE_SERIAL
pthread_t pth;
pthread_create(&pth, NULL, thread_read_serial, NULL);
#endif
while(1) {
// network
int numbytes;
addr_len = sizeof their_addr;
if ((numbytes = recvfrom(sockfd, (netbuf + netbufpos), MAXBUFLEN - (netbufpos + 1), MSG_DONTWAIT, (struct sockaddr *)&their_addr, &addr_len)) > 0) {
printf("[NET] received %i bytes\n", numbytes);
int i = 0;
for(i = 0; i < numbytes; i++) if(netbuf[netbufpos + i] == '\n') break;
netbufpos += numbytes;
if(i < numbytes) {
// found breakline
netbuf[netbufpos - 1] = '\0';
netbufpos = 0;
printf("CMD <%s>\n", netbuf);
JSON_Value* json = json_parse_string(netbuf);
if(json_value_get_type(json) == JSONObject) {
JSON_Object* obj = json_value_get_object(json);
const char* msgtype = json_object_dotget_string(obj, "type");
if(strcmp(msgtype, "io.tcp.ping") == 0) do_ping();
else do_network(json, netbuf);
}
json_value_free(json);
}
if(netbufpos + 1 == MAXBUFLEN) {
printf("[NET] ERROR: received %i bytes and still no breakline. Discarding the message.\n", MAXBUFLEN);
netbufpos = 0;
}
} else if(numbytes == 0) {
break;
}
}
hs_shutdown();
close(sockfd);
return 0;
}
