void csv_writer::write(std::ostream& out,
const std::vector<flexible_type>& row) {
for (size_t i = 0;i < row.size(); ++i) {
csv_print(out, row[i]);
// put a delimiter after every element except for the last element.
if (i + 1 < row.size()) out << delimiter;
}
out << "\n";
}
void csv_writer::csv_print(std::ostream& out, const flexible_type& val) {
switch(val.get_type()) {
case flex_type_enum::INTEGER:
case flex_type_enum::FLOAT:
case flex_type_enum::VECTOR:
out << std::string(val);
break;
case flex_type_enum::STRING:
escape_string(val.get<flex_string>(), escape_char,
quote_char, use_quote_char, double_quote,
m_escape_buffer, m_escape_buffer_len);
out.write(m_escape_buffer.c_str(), m_escape_buffer_len);
break;
case flex_type_enum::LIST:
out << "[";
for(size_t i = 0;i < val.get<flex_list>().size(); ++i) {
csv_print(out, val.get<flex_list>()[i]);
if (i + 1 < val.get<flex_list>().size()) out << ",";
}
out << "]";
break;
case flex_type_enum::DICT:
out << "{";
for(size_t i = 0;i < val.get<flex_dict>().size(); ++i) {
csv_print(out, val.get<flex_dict>()[i].first);
out << ":";
csv_print(out, val.get<flex_dict>()[i].second);
if (i + 1 < val.get<flex_dict>().size()) out << ",";
}
out << "}";
break;
case flex_type_enum::UNDEFINED:
default:
break;
}
}
/* ----------------------------
* MONITOR CODE
* ---------------------------- */
void run_dtnperf_monitor(monitor_parameters_t * parameters)
{
/* ------------------------
* variables
* ------------------------ */
dtnperf_options_t * perf_opt = parameters->perf_g_opt->perf_opt;
bp_error_t error;
bp_endpoint_id_t local_eid;
bp_reg_info_t reginfo;
bp_reg_id_t regid;
bp_bundle_object_t bundle_object;
bp_bundle_status_report_t * status_report;
bp_endpoint_id_t bundle_source_addr;
bp_timestamp_t bundle_creation_timestamp;
bp_timeval_t bundle_expiration;
bp_endpoint_id_t relative_source_addr;
bp_timestamp_t relative_creation_timestamp;
HEADER_TYPE bundle_header;
session_t * session;
bundle_type_t bundle_type;
struct timeval current, start;
char * command;
char temp[256];
char * filename;
int filename_len;
char * full_filename;
FILE * file;
/* ------------------------
* initialize variables
* ------------------------ */
boolean_t debug = perf_opt->debug;
int debug_level = perf_opt->debug_level;
dedicated_monitor = parameters->dedicated_monitor;
bp_handle_open = FALSE;
perf_opt->logs_dir = correct_dirname(perf_opt->logs_dir);
status_report = NULL;
session_list = session_list_create();
// set out buffer size if daemon
if (perf_opt->daemon)
{
setlinebuf(stdout);
setlinebuf(stderr);
}
// create dir where dtnperf monitor will save logs
// command should be: mkdir -p "logs_dir"
if(debug && debug_level > 0)
printf("[debug] initializing shell command...");
command = malloc(sizeof(char) * (10 + strlen(perf_opt->logs_dir)));
sprintf(command, "mkdir -p %s", perf_opt->logs_dir);
if(debug && debug_level > 0)
printf("done. Shell command = %s\n", command);
// execute shell command
if(debug && debug_level > 0)
printf("[debug] executing shell command...");
if (system(command) < 0)
{
perror("Error opening monitor logs dir");
monitor_clean_exit(-1);
}
free(command);
if(debug && debug_level > 0)
printf("done\n");
// signal handlers
signal(SIGINT, monitor_handler);
signal(SIGUSR1, monitor_handler);
signal(SIGUSR2, monitor_handler);
//open the connection to the bundle protocol router
if(debug && debug_level > 0)
printf("[debug] opening connection to bundle protocol router...");
if (perf_opt->use_ip)
error = bp_open_with_ip(perf_opt->ip_addr, perf_opt->ip_port, &handle);
else
error = bp_open(&handle);
if (error != BP_SUCCESS)
{
fflush(stdout);
fprintf(stderr, "fatal error opening bp handle: %s\n", bp_strerror(error));
monitor_clean_exit(1);
}
else
{
bp_handle_open = TRUE;
}
if(debug && debug_level > 0)
printf("done\n");
//build a local eid
if(debug && debug_level > 0)
printf("[debug] building a local eid...");
if (parameters->dedicated_monitor)
sprintf(temp, "%s_%d", MON_EP_STRING, parameters->client_id);
else
sprintf(temp, "%s", MON_EP_STRING);
bp_build_local_eid(handle, &local_eid, temp);
if(debug && debug_level > 0)
printf("done\n");
if (debug)
printf("local_eid = %s\n", local_eid.uri);
// checking if there is already a registration
if(debug && debug_level > 0)
printf("[debug] checking for existing registration...");
error = bp_find_registration(handle, &local_eid, ®id);
if (error == BP_SUCCESS)
{
fflush(stdout);
fprintf(stderr, "error: there is a registration with the same eid.\n");
fprintf(stderr, "regid 0x%x\n", (unsigned int) regid);
monitor_clean_exit(1);
}
if ((debug) && (debug_level > 0))
printf(" done\n");
//create a new registration to the local router based on this eid
if(debug && debug_level > 0)
printf("[debug] registering to local daemon...");
memset(®info, 0, sizeof(reginfo));
bp_copy_eid(®info.endpoint, &local_eid);
reginfo.flags = BP_REG_DEFER;
reginfo.regid = BP_REGID_NONE;
reginfo.expiration = 0;
if ((error = bp_register(handle, ®info, ®id)) != 0)
{
fflush(stdout);
fprintf(stderr, "error creating registration: %d (%s)\n",
error, bp_strerror(bp_errno(handle)));
monitor_clean_exit(1);
}
if ((debug) && (debug_level > 0))
printf(" done\n");
if (debug)
printf("regid 0x%x\n", (unsigned int) regid);
// start expiration timer thread
pthread_mutex_init (&mutexdata, NULL);
pthread_create(&session_exp_timer, NULL, session_expiration_timer, (void *) parameters);
if (!dedicated_monitor)
printf("DTNperf Monitor started\n Waiting for bundles...\n");
// start infinite loop
while(1)
{
// reset variables
bundle_type = NONE;
// create a bundle object
if ((debug) && (debug_level > 0))
printf("[debug] initiating memory for bundles...\n");
error = bp_bundle_create(&bundle_object);
if (error != BP_SUCCESS)
{
fflush(stdout);
fprintf(stderr, "fatal error initiating memory for bundles: %s\n", bp_strerror(error));
monitor_clean_exit(1);
}
if(debug && debug_level > 0)
printf("done\n");
// wait until receive a bundle
if ((debug) && (debug_level > 0))
printf("[debug] waiting for bundles...\n");
error = bp_bundle_receive(handle, bundle_object, BP_PAYLOAD_MEM, -1);
if (error != BP_SUCCESS)
{
fflush(stdout);
fprintf(stderr, "error getting recv reply: %d (%s)\n",
error, bp_strerror(bp_errno(handle)));
monitor_clean_exit(1);
}
if ((debug) && (debug_level > 0))
printf(" bundle received\n");
// mark current time
if ((debug) && (debug_level > 0))
printf("[debug] marking time...");
gettimeofday(¤t, NULL);
if ((debug) && (debug_level > 0))
printf(" done\n");
// get SOURCE eid
if ((debug) && (debug_level > 0))
printf("[debug]\tgetting source eid...");
error = bp_bundle_get_source(bundle_object, &bundle_source_addr);
if (error != BP_SUCCESS)
{
fflush(stdout);
fprintf(stderr, "error getting bundle source eid: %s\n",
bp_strerror(error));
monitor_clean_exit(1);
}
if ((debug) && (debug_level > 0))
{
printf(" done:\n");
printf("\tbundle_source_addr = %s\n", bundle_source_addr.uri);
printf("\n");
}
// get bundle CREATION TIMESTAMP
if ((debug) && (debug_level > 0))
printf("[debug]\tgetting bundle creation timestamp...");
error = bp_bundle_get_creation_timestamp(bundle_object, &bundle_creation_timestamp);
if (error != BP_SUCCESS)
{
fflush(stdout);
fprintf(stderr, "error getting bundle creation timestamp: %s\n",
bp_strerror(error));
monitor_clean_exit(1);
}
if ((debug) && (debug_level > 0))
{
printf(" done:\n");
printf("\tbundle creation timestamp:\n"
"\tsecs = %d\n\tseqno= %d\n",
(int)bundle_creation_timestamp.secs, (int)bundle_creation_timestamp.seqno);
printf("\n");
}
// get bundle EXPIRATION TIME
if ((debug) && (debug_level > 0))
printf("[debug]\tgetting bundle expiration time...");
error = bp_bundle_get_expiration(bundle_object, &bundle_expiration);
if (error != BP_SUCCESS)
{
fflush(stdout);
fprintf(stderr, "error getting bundle expiration time: %s\n",
bp_strerror(error));
monitor_clean_exit(1);
}
if ((debug) && (debug_level > 0))
{
printf(" done:\n");
printf("\tbundle expiration: %lu\n", bundle_expiration);
printf("\n");
}
// check if bundle is a status report
if ((debug) && (debug_level > 0))
printf("[debug] check if bundle is a status report...\n");
error = bp_bundle_get_status_report(bundle_object, &status_report);
if (error != BP_SUCCESS)
{
fflush(stdout);
fprintf(stderr, "error checking if bundle is a status report: %d (%s)\n",
error, bp_strerror(bp_errno(handle)));
continue;
}
if ((debug) && (debug_level > 0))
printf(" %s\n", status_report == NULL ? "no" : "yes");
// check for other bundle types
if (status_report != NULL)
bundle_type = STATUS_REPORT;
else
{
get_bundle_header_and_options(&bundle_object, & bundle_header, NULL);
if (bundle_header == FORCE_STOP_HEADER)
bundle_type = CLIENT_FORCE_STOP;
else if (bundle_header == STOP_HEADER)
bundle_type = CLIENT_STOP;
else if (bundle_header == DSA_HEADER)
bundle_type = SERVER_ACK;
else // unknown bundle type
{
fprintf(stderr, "error: unknown bundle type\n");
continue;
}
}
// retrieve or open log file
pthread_mutex_lock(&mutexdata);
session = NULL;
switch (bundle_type)
{
case STATUS_REPORT:
bp_copy_eid(&relative_source_addr, &(status_report->bundle_id.source));
relative_creation_timestamp = status_report->bundle_id.creation_ts;
break;
case SERVER_ACK:
get_info_from_ack(&bundle_object, &relative_source_addr, &relative_creation_timestamp);
break;
case CLIENT_STOP:
case CLIENT_FORCE_STOP:
bp_copy_eid(&relative_source_addr, &bundle_source_addr);
relative_creation_timestamp = bundle_creation_timestamp;
break;
default:
break;
}
session = session_get(session_list, relative_source_addr);
if (session == NULL) // start a new session
{
// mark start time
start = current;
char * ptr;
filename_len = strlen(relative_source_addr.uri) - strlen("dtn://") + 15;
filename = (char *) malloc(filename_len);
memset(filename, 0, filename_len);
strncpy(temp, relative_source_addr.uri, strlen(relative_source_addr.uri) + 1);
strtok(temp, "/");
sprintf(filename, "%lu_", relative_creation_timestamp.secs);
strcat(filename, strtok(NULL, "/"));
// remove .dtn suffix from the filename
ptr = strstr(filename, ".dtn");
if (ptr != NULL)
ptr[0] = '\0';
// add .csv extension
strcat(filename, ".csv");
full_filename = (char *) malloc(strlen(perf_opt->logs_dir) + strlen(filename) + 2);
sprintf(full_filename, "%s/%s", perf_opt->logs_dir, filename);
file = fopen(full_filename, "w");
session = session_create(relative_source_addr, full_filename, file, start,
relative_creation_timestamp.secs, bundle_expiration);
session_put(session_list, session);
// write header in csv log file
fprintf(file,"Mon_RX_TIME;BSR_OR_ACK_SOURCE;BSR_OR_ACK_TIMESTAMP;BSR_OR_ACK_SEQNO;"
"TYPE;BUNDLE_X_SOURCE;BUNDLE_X_TIMESTAMP;BUNDLE_X_SEQNO;"
"FRAG_OFFSET;FRAG_LENGTH;");
csv_print_status_report_timestamps_header(file);
csv_end_line(file);
}
// update session infos
session->last_bundle_time = bundle_creation_timestamp.secs;
session->expiration = bundle_expiration;
file = session->file;
memcpy(&start, session->start, sizeof(struct timeval));
if (bundle_type == STATUS_REPORT && (status_report->flags & BP_STATUS_DELIVERED))
{
session->delivered_count++;
}
pthread_mutex_unlock(&mutexdata);
// print rx time in csv log
csv_print_rx_time(file, current, start);
// print bundle source in csv log
csv_print_eid(file, bundle_source_addr);
//print bundle creation timestamp in csv log
csv_print_timestamp(file, bundle_creation_timestamp);
// print bundle type in csv log
switch (bundle_type)
{
case CLIENT_STOP:
csv_print(file, "CLIENT_STOP");
break;
case CLIENT_FORCE_STOP:
csv_print(file, "CLIENT_FORCE_STOP");
break;
case SERVER_ACK:
csv_print(file, "SERVER_ACK");
break;
case STATUS_REPORT:
csv_print(file, "STATUS_REPORT");
break;
default:
csv_print(file, "UNKNOWN");
break;
}
// print relative source and timestamp
if (bundle_type == SERVER_ACK || bundle_type == STATUS_REPORT)
{
csv_print_eid(file, relative_source_addr);
csv_print_timestamp(file, relative_creation_timestamp);
}
// print status report infos in csv log
if (bundle_type == STATUS_REPORT)
{
csv_print_ulong(file, status_report->bundle_id.frag_offset);
csv_print_ulong(file, status_report->bundle_id.orig_length);
csv_print_status_report_timestamps(file, * status_report);
}
// end line in csv log
csv_end_line(file);
// close file
if (bundle_type == CLIENT_STOP)
{
int total_to_receive;
get_info_from_stop(&bundle_object, &total_to_receive);
pthread_mutex_lock(&mutexdata);
session->total_to_receive = total_to_receive;
session->wait_after_stop = bundle_expiration;
gettimeofday(session->stop_arrival_time, NULL);
pthread_mutex_unlock(&mutexdata);
}
else if (bundle_type == CLIENT_FORCE_STOP)
{
printf("DTNperf monitor: received forced end session bundle\n");
session_close(session_list, session);
}
} // end loop
session_list_destroy(session_list);
bp_close(handle);
bp_handle_open = FALSE;
}
/* This is the overall CSV producer. */
void csv_producer (char * variable, const char * sep) {
vector * v;
// save variable including its dependencies
if (variable && (v = qucs_data->findVariable (variable)) != NULL) {
// prepare variable + dependency structures
strlist * deps = v->getDependencies ();
int vectors = 1 + (deps ? deps->length () : 0);
struct csv_data * data = new struct csv_data[vectors];
int i = vectors - 1;
data[i].type = real (sum (norm (imag (*v)))) > 0.0 ? 'c' : 'r';
data[i].v = v;
data[i].idx = 0;
data[i].skip = 1;
data[i].len = v->getSize ();
int a = v->getSize ();
for (i = vectors - 2; i >= 0; i--) {
vector * d = qucs_data->findDependency (deps->get (i));
data[i].type = real (sum (norm (imag (*d)))) > 0.0 ? 'c' : 'r';
data[i].v = d;
data[i].idx = 0;
a /= d->getSize ();
data[i].skip = a;
data[i].len = d->getSize ();
}
csv_print (data, vectors, sep);
delete[] data;
}
// save dependency + all variable depending on it
else if (variable && (v = qucs_data->findDependency (variable)) != NULL) {
// prepare dependency + variables structures
vector * vars;
int vectors = 1;
for (vars = qucs_data->getVariables (); vars != NULL;
vars = (vector *) vars->getNext ()) {
strlist * deps = vars->getDependencies ();
if (deps->contains (v->getName ()))
vectors++;
}
struct csv_data * data = new struct csv_data[vectors];
data[0].type = real (sum (norm (imag (*v)))) > 0.0 ? 'c' : 'r';
data[0].v = v;
data[0].idx = 0;
data[0].skip = 1;
data[0].len = v->getSize ();
int i = 1;
for (vars = qucs_data->getVariables (); vars != NULL;
vars = (vector *) vars->getNext ()) {
strlist * deps = vars->getDependencies ();
if (deps->contains (v->getName ())) {
vector * d = vars;
data[i].type = real (sum (norm (imag (*d)))) > 0.0 ? 'c' : 'r';
data[i].v = d;
data[i].idx = 0;
data[i].skip = 1;
data[i].len = d->getSize ();
i++;
}
}
csv_print (data, vectors, sep);
delete[] data;
}
// no such data found
else {
fprintf (stderr, "no such data variable `%s' found\n", variable);
}
}