dunedaq::logging::Logging Class Reference

The Logger class defines the interface necessary to configure central logging within a DAQ Application. More...

#include <Logging.hpp>

Classes
class	InternalMessage

Static Public Member Functions
static void	setup (const std::string &session, const std::string &application)
	Setup the Logger service Currently no args.

Detailed Description

The Logger class defines the interface necessary to configure central logging within a DAQ Application.

Definition at line 24 of file Logging.hpp.

Member Function Documentation

setup()

static void dunedaq::logging::Logging::setup ( const std::string & session, const std::string & application )

inlinestatic

Setup the Logger service Currently no args.

Example: production env: export DUNEDAQ_ERS_ERROR="erstrace,throttle(30,100),lstderr,mts" export DUNEDAQ_ERS_FATAL="erstrace,lstderr,mts" export DUNEDAQ_ERS_WARNING="erstrace,throttle(30,100),lstderr,mts" export DUNEDAQ_ERS_INFO="erstrace,throttle(30,100),lstdout,mts"

export DUNEDAQ_ERS_LOG="lstdout" export DUNEDAQ_ERS_DEBUG="lstdout"

export DUNEDAQ_ERS_STREAM_LIBS="mtsStreams"

Definition at line 32 of file Logging.hpp.

    {
        // need to get tricky to short circuit DEBUG message (at "level 1") about
        //    libmtsStreams.so: cannot open shared object file: No such file or directory       
      // creates variables for application awearness
      setenv("DUNEDAQ_SESSION", session.c_str(), 1);
      setenv("DUNEDAQ_APPLICATION_NAME", application.c_str(), 1);
      
        // set defaults with 0=no override
        setenv("DUNEDAQ_ERS_FATAL", "erstrace,lstderr",0);
        setenv("DUNEDAQ_ERS_ERROR", "erstrace,throttle(30,100),lstderr",0);
        setenv("DUNEDAQ_ERS_WARNING","erstrace,throttle(30,100),lstderr",0);
        setenv("DUNEDAQ_ERS_INFO",   "erstrace,lstdout",0);
        setenv("DUNEDAQ_ERS_LOG",    "lstdout",0);
        setenv("DUNEDAQ_ERS_DEBUG",  "lstdout",0);
        std::vector<std::string> envvars = {"DUNEDAQ_ERS_FATAL","DUNEDAQ_ERS_ERROR","DUNEDAQ_ERS_WARNING","DUNEDAQ_ERS_INFO"};
        for (std::string& envvar : envvars) {
            char *ecp = getenv(envvar.c_str());
            if (strncmp(ecp,"erstrace",8) != 0) {
                std::string newval = "erstrace," + std::string(ecp);
                setenv(envvar.c_str(),newval.c_str(),1);
            }
        }
 
        //setenv("DUNEDAQ_APPLICATION_NAME","XYZZY",0);
        // std::ostringstream out;
        // out << (1ULL<<(TLVL_DEBUG+2))-1;
        // setenv("TRACE_LVLM",(out.str()+",0").c_str(),0);
 
        // Avoid ERS_INTERNAL_DEBUG( 1, "Library " << MRSStreamLibraryName << " can not be loaded because " << ex.reason() )
        //  DEBUG_1 [ers::PluginManager::PluginManager(...) at ...Library mtsStreams can not be loaded because libmtsStreams.so: cannot open shared object file: No such file or directory
        // by only setting debug_level AFTER first ers::debug message
        //setenv("DUNEDAQ_ERS_DEBUG_LEVEL","63",0);
        ers::LocalContext lc( "logging package", __FILE__, __LINE__, __func__, 0/*no_stack*/ );
        int lvl=100;
        ers::InternalMessage msg(lc,"Logger setup(...) ers::debug level "+std::to_string(lvl)+" -- seems to come out level 0 (with ERS version v0_26_00d) ???");
        msg.set_severity( ers::Severity( ers::Debug, lvl ) );
        ers::debug(msg,lvl); // still comes out as level 0 ???
        ers::Configuration::instance().debug_level(63);
        char *cp;
        if ((cp=getenv("DUNEDAQ_ERS_DEBUG_LEVEL")) && *cp) {
            int lvl=strtoul(cp,nullptr,0)+TLVL_DEBUG;
            if (lvl>63) lvl=63;
            //TRACE_CNTL("lvlmskSg",(1ULL<<lvl)-1); // this sets traceTID to id of "Logger"
            uint64_t msk = ((1ULL<<lvl)-1) | (1ULL<<lvl);
            std::string mskstr=std::to_string(msk);
            setenv("TRACE_LVLS",mskstr.c_str(),0);
        }
    }

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The documentation for this class was generated from the following file:

• /github/workspace/dunedaq/sourcecode/logging/include/logging/Logging.hpp