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#include <stdio.h>
#include <string.h>
#include <map>
#include <set>
#include <string>
#include <vector>
#include <stdlib.h>
using namespace std;
map<string, string> port_desc = {
{ "3013", "main (3013)" },
{ "3014", "main-sd (3014)" },
{ "3015", "webcam (3015)" },
{ "3016", "webcam-south (3016)" },
{ "3017", "webcam-south-transcode (3017)" },
{ "3018", "webcam-fisheye (3018)" },
{ "5013", "main-transcode (5013)" },
{ "5015", "webcam-transcode (5015)" },
};
struct Spec {
set<string> incl;
bool compare;
};
Spec parse_spec(const string &spec)
{
Spec ret;
ret.compare = false;
if (spec == "compare") {
ret.compare = true;
return ret;
}
if (spec == "dontcare") {
return ret;
}
const char *ptr = spec.c_str();
if (strncmp(ptr, "compare:", 8) == 0) {
ptr += 8;
ret.compare = true;
}
for ( ;; ) {
const char *end = strchr(ptr, ',');
if (end == NULL) {
ret.incl.insert(ptr);
break;
} else {
ret.incl.insert(string(ptr, end));
ptr = end + 1;
}
}
return ret;
}
bool filter(const string &entry, const Spec &spec)
{
if (spec.incl.empty()) {
return false;
}
return spec.incl.count(entry) == 0;
}
vector<string> get_stream_id(const string& port, const string &proto, const string &audience,
const Spec& port_spec, const Spec &proto_spec, const Spec &audience_spec)
{
vector<string> keys;
if (port_spec.compare) {
if (port_desc.count(port)) {
keys.push_back(port_desc[port]);
} else {
char buf[256];
sprintf(buf, "___%s___", port.c_str());
keys.push_back(buf);
}
}
if (proto_spec.compare) {
keys.push_back(proto);
}
if (audience_spec.compare) {
keys.push_back(audience);
}
return keys;
}
string get_stream_desc(const vector<string> &stream_id)
{
string ret;
for (int i = 0; i < stream_id.size(); ++i) {
if (i != 0) {
ret += ",";
}
ret += stream_id[i];
}
return ret;
}
int main(int argc, char **argv)
{
Spec port_spec = parse_spec(argv[2]);
Spec proto_spec = parse_spec(argv[3]);
Spec audience_spec = parse_spec(argv[4]);
map<string, map<vector<string>, int> > lines;
map<vector<string>, int> stream_ids;
vector<string> stream_descs;
// Parse the log.
FILE *fp;
if (strcmp(argv[1], "-") == 0) {
fp = stdin;
} else {
fp = fopen(argv[1], "r");
}
while (!feof(fp)) {
char buf[1024];
fgets(buf, 1024, fp);
if (buf == NULL) {
break;
}
char *ptr = strchr(buf, '\n');
if (ptr != NULL) {
*ptr = 0;
}
char *date = strtok(buf, " ");
char *port = strtok(NULL, " ");
char *proto = strtok(NULL, " ");
char *audience = strtok(NULL, " ");
char *count = strtok(NULL, " ");
if (date == NULL || port == NULL || proto == NULL || audience == NULL || count == NULL) {
continue;
}
if (filter(port, port_spec)) {
continue;
}
if (filter(proto, proto_spec)) {
continue;
}
if (filter(audience, audience_spec)) {
continue;
}
vector<string> stream_id = get_stream_id(port, proto, audience, port_spec, proto_spec, audience_spec);
if (stream_ids.count(stream_id) == 0) {
int stream_id_num = stream_ids.size();
stream_ids.insert(make_pair(stream_id, stream_id_num));
stream_descs.push_back(get_stream_desc(stream_id));
}
lines[date][stream_id] += atoi(count);
}
fclose(fp);
// Output.
char *data_file = tempnam(NULL, "data");
FILE *datafp = fopen(data_file, "w");
if (datafp == NULL) {
perror(data_file);
exit(1);
}
vector<int> cols(stream_ids.size());
for (auto& it : lines) {
const string& date = it.first;
for (const auto& it2 : stream_ids) {
const vector<string>& stream_id = it2.first;
int stream_id_num = it2.second;
cols[stream_id_num] = it.second[stream_id]; // note: might zero-initialize
}
fprintf(datafp, "%s", date.c_str());
for (int i = 0; i < cols.size(); ++i) {
fprintf(datafp, " %d", cols[i]);
}
fprintf(datafp, "\n");
}
fclose(datafp);
// Make gnuplot script.
char *plot_file = tempnam(NULL, "plot");
FILE *plotfp = fopen(plot_file, "w");
if (plotfp == NULL) {
perror(plot_file);
exit(1);
}
fprintf(plotfp, "set terminal png\n");
fprintf(plotfp, "set xdata time\n");
fprintf(plotfp, "set timefmt \"20%%y-%%m-%%d-%%H:%%M:%%S\"\n");
fprintf(plotfp, "set xtics axis \"2000-00-00-01:00:00\"\n");
fprintf(plotfp, "set format x \"%%H\"\n");
fprintf(plotfp, "plot");
for (int i = 0; i < cols.size(); ++i) {
if (i == 0) {
fprintf(plotfp, " ");
} else {
fprintf(plotfp, ",");
}
fprintf(plotfp, "\"%s\" using 1:%d title \"%s\" with lines", data_file, i + 2, stream_descs[i].c_str());
}
fprintf(plotfp, "\n");
fclose(plotfp);
char buf[1024];
sprintf(buf, "gnuplot < %s", plot_file);
system(buf);
}
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