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_;
43 , pipe_(
pset.get<std::string>(
"pipe",
"/tmp/eventQueueStat"))
47 auto names =
pset.get<std::vector<std::string>>(
"names", std::vector<std::string>());
49 for (
auto name : names)
51 value_map_[name] =
"";
54 int sts = mkfifo(pipe_.c_str(), 0777);
55 if (sts != 0) { perror(
"ProcFileMetric mkfifo"); }
56 TRACE(10,
"ProcFileMetric mkfifo(" + pipe_ +
") sts=%d", sts);
64 TRACE( 11,
"~ProcFileMetric" );
72 std::string
getLibName()
const override {
return "procFile"; }
79 void sendMetric_(
const std::string& name,
const std::string& value,
const std::string&)
override {
80 if (value_map_.count(name)) {
81 TRACE(12,
"sendMetric_ setting value="+ value);
82 value_map_[name] = value;
92 void sendMetric_(
const std::string& name,
const int& value,
const std::string& unit)
override {
102 void sendMetric_(
const std::string& name,
const double& value,
const std::string& unit)
override {
112 void sendMetric_(
const std::string& name,
const float& value,
const std::string& unit)
override {
122 void sendMetric_(
const std::string& name,
const unsigned long int& value,
const std::string& unit)
override
136 boost::thread::attributes attrs;
137 attrs.set_stack_size(4096 * 200);
151 TRACE(11,
"stopMetrics_ before open " + pipe_);
152 int fd = open(pipe_.c_str(), O_RDONLY | O_NONBLOCK);
153 if (fd == -1) { perror(
"stopMetrics_ open(\"r\")"); exit(1); }
154 TRACE(10,
"stopMetrics_ between open and unlink" + pipe_ +
" fd=%d", fd);
155 unlink(pipe_.c_str());
156 TRACE(11,
"stopMetrics_ unlinked " + pipe_);
159 read(fd, buf,
sizeof(buf));
163 TRACE(11,
"stopMetrics_ after close " + pipe_);
164 if (thread_.joinable()) thread_.join();
175 TRACE(11,
"writePipe before open");
176 int fd = open(pipe_.c_str(), O_WRONLY);
178 for (
auto value : value_map_) {
179 TRACE(10,
"writePipe open fd="+std::to_string(fd)+
" name="+value.first+
" value="+value.second );
180 str += value.first +
": " + value.second +
"\n";
183 int sts = write(fd, str.c_str(), str.size());
184 TRACE(11,
"writePipe write complete sts=%d", sts);
186 TRACE(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.
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(fhicl::ParameterSet config)
ProcFileMetric Constructor.
~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.