2 #include "artdaq-utilities/Plugins/MetricMacros.hh"
3 #include "fhiclcpp/ParameterSet.h"
4 #include "messagefacility/MessageLogger/MessageLogger.h"
5 #define TRACE_NAME "procFile_metric"
13 #include <boost/thread.hpp>
28 std::unordered_map<std::string, std::string> value_map_;
30 boost::thread thread_;
44 , pipe_(
pset.get<std::string>(
"pipe",
"/tmp/eventQueueStat"))
48 auto names =
pset.get<std::vector<std::string>>(
"names", std::vector<std::string>());
50 for (
auto name : names)
52 value_map_[name] =
"";
55 int sts = mkfifo(pipe_.c_str(), 0777);
56 if (sts != 0) { perror(
"ProcFileMetric mkfifo"); }
57 TLOG(10) <<
"ProcFileMetric mkfifo()" << pipe_ <<
" sts=" << sts;
65 TLOG(11) <<
"~ProcFileMetric" ;
73 std::string
getLibName()
const override {
return "procFile"; }
80 void sendMetric_(
const std::string& name,
const std::string& value,
const std::string&)
override {
81 if (value_map_.count(name)) {
82 TLOG(12) <<
"sendMetric_ setting value=" << value;
83 value_map_[name] = value;
93 void sendMetric_(
const std::string& name,
const int& value,
const std::string& unit)
override {
103 void sendMetric_(
const std::string& name,
const double& value,
const std::string& unit)
override {
113 void sendMetric_(
const std::string& name,
const float& value,
const std::string& unit)
override {
123 void sendMetric_(
const std::string& name,
const unsigned long int& value,
const std::string& unit)
override
137 boost::thread::attributes attrs;
138 attrs.set_stack_size(4096 * 200);
152 TLOG(11) <<
"stopMetrics_ before open " << pipe_;
153 int fd = open(pipe_.c_str(), O_RDONLY | O_NONBLOCK);
154 if (fd == -1) { perror(
"stopMetrics_ open(\"r\")"); exit(1); }
155 TLOG(10) <<
"stopMetrics_ between open and unlink" << pipe_ <<
" fd=" << fd;
156 unlink(pipe_.c_str());
157 TLOG(11) <<
"stopMetrics_ unlinked " << pipe_;
160 read(fd, buf,
sizeof(buf));
164 TLOG(11) <<
"stopMetrics_ after close " << pipe_;
165 if (thread_.joinable()) thread_.join();
176 TLOG(11) <<
"writePipe before open";
177 int fd = open(pipe_.c_str(), O_WRONLY);
179 for (
auto value : value_map_) {
180 TLOG(10) <<
"writePipe open fd=" << fd <<
" name=" << value.first <<
" value=" << value.second;
181 str += value.first +
": " + value.second +
"\n";
184 int sts = write(fd, str.c_str(), str.size());
185 TLOG(11) <<
"writePipe write complete sts=" << sts;
187 TLOG(11) <<
"writePipe after close -- about to usleep";
The MetricPlugin class defines the interface that MetricManager uses to send metric data to the vario...
void startMetrics()
Perform startup actions. Simply calls the virtual startMetrics_ function.
std::string getLibName() const override
Get the "library name" of this Metric.
void stopMetrics_() override
Open the pipe for reading to allow the metric-sending thread to end gracefully.
fhicl::ParameterSet pset
The ParameterSet used to configure the MetricPlugin.
void sendMetric_(const std::string &name, const double &value, const std::string &unit) override
Set the value to be written to the pipe when it is opened by a reader.
void startMetrics_() override
Start the metric-sending thread.
ProcFileMetric(fhicl::ParameterSet const &config, std::string const &app_name)
ProcFileMetric Constructor.
void writePipe()
Wait for the pipe to be opened and then write the current value to it.
void stopMetrics()
Perform shutdown actions. Zeroes out all accumulators, and sends zeros for each metric. Calls stopMetrics_() for any plugin-defined shutdown actions.
void sendMetric_(const std::string &name, const int &value, const std::string &unit) override
Set the value to be written to the pipe when it is opened by a reader.
void sendMetric_(const std::string &name, const unsigned long int &value, const std::string &unit) override
Set the value to be written to the pipe when it is opened by a reader.
void sendMetric_(const std::string &name, const std::string &value, const std::string &) override
Set the value to be written to the pipe when it is opened by a reader.
~ProcFileMetric()
ProcFileMetric Destructor.
A MetricPlugin which writes a long unsigned int metric with a given name to a given pipe...
void sendMetric_(const std::string &name, const float &value, const std::string &unit) override
Set the value to be written to the pipe when it is opened by a reader.