FEVInterface.h

#ifndef _ots_FEVInterface_h_
#define _ots_FEVInterface_h_
 
#define TRACEMF_USE_VERBATIM 1  // for trace longer path filenames
#include "artdaq/DAQdata/Globals.hh"
 
#include "otsdaq/Configurable/Configurable.h"
#include "otsdaq/FECore/FESlowControlsWorkLoop.h"
#include "otsdaq/FiniteStateMachine/VStateMachine.h"
#include "otsdaq/WorkLoopManager/WorkLoop.h"
 
#include "otsdaq/CoreSupervisors/CoreSupervisorBase.h"
 
#include "otsdaq/SupervisorInfo/AllSupervisorInfo.h"  //to send errors to Gateway, e.g.
 
#include "otsdaq/FECore/FESlowControlsChannel.h"
#include "otsdaq/SOAPUtilities/SOAPMessenger.h"  //for xdaq::ApplicationDescriptor communication
 
#include <array>
#include <iostream>
#include <map>
#include <mutex>
#include <string>
#include <thread>
#include <vector>
 
#include "otsdaq/Macros/CoutMacros.h"
 
#define __ARGS__                                                               \
    [[maybe_unused]] const frontEndMacroStruct_t &              feMacroStruct, \
        [[maybe_unused]] FEVInterface::frontEndMacroConstArgs_t argsIn,        \
        [[maybe_unused]] FEVInterface::frontEndMacroArgs_t      argsOut
 
#define __GET_ARG_IN_NO_DEFAULT__(X, Y)          getFEMacroConstArgumentValue<Y>(argsIn, X)
#define __GET_ARG_IN_DEFAULT__(X, Y, D)          getFEMacroConstArgumentValue<Y>(argsIn, X, D)
#define GET_4TH_ARG(arg1, arg2, arg3, arg4, ...) arg4
#define __GET_ARG_IN_CHOOSER__(...) \
    GET_4TH_ARG(__VA_ARGS__, __GET_ARG_IN_DEFAULT__, __GET_ARG_IN_NO_DEFAULT__, )
#define __GET_ARG_IN__(...)   __GET_ARG_IN_CHOOSER__(__VA_ARGS__)(__VA_ARGS__)
#define __GET_ARG_OUT__(X, Y) getFEMacroArgumentValue<Y>(argsOut, X)
 
#define __SET_ARG_IN__(X, Y)  FEVInterface::emplaceFEMacroArgumentValue(argsIn, X, Y)
#define __SET_ARG_OUT__(X, Y) FEVInterface::setFEMacroArgumentValue(argsOut, X, Y)
#define __SET_PCT_DONE__(X)   setFEMacroPercentDone(X)  
 
// clang-format off
#define PLOTLY_PLOT "Plotly_Plot"  
 
namespace ots
{
class FEVInterfacesManager;
 
class FEVInterface : public WorkLoop, public Configurable, public VStateMachine
{
    friend class FEVInterfacesManager;
 
  public:
    FEVInterface(
        const std::string&                      interfaceUID,
        const ConfigurationTree&                theXDAQContextConfigTree,
        const std::string&                      configurationPath);
 
    virtual ~FEVInterface(void);
 
    virtual void                        setParentPointers(CoreSupervisorBase* supervisor,
                                               FEVInterfacesManager* manager);
 
    FEVInterfacesManager*               parentInterfaceManager_ = nullptr;
 
    const std::string&                  getInterfaceUID             (void) const { return interfaceUID_; }
    const std::string&                  getInterfaceType            (void) const { return interfaceType_; }
 
    virtual void                        universalRead               (char* address, char* returnValue) = 0;  
    virtual void                        universalWrite              (char* address, char* writeValue) = 0;
    const unsigned int&                 getUniversalAddressSize     (void) { return universalAddressSize_; }
    const unsigned int&                 getUniversalDataSize        (void) { return universalDataSize_; }
    virtual void                        universalBlockRead          (char* address, char* returnValue, unsigned int numberOfBytes) { throw std::runtime_error("UNDEFINED BLOCK READ"); /* to make compiler happy, use params */ __COUTV__((void*)address); __COUTV__((void*)returnValue); __COUTV__(numberOfBytes); }
    bool                                universalBlockReadImplementationConfirmed = false; 
    virtual void                        universalBlockWrite         (char* address, char* writeValue, unsigned int numberOfBytes) { throw std::runtime_error("UNDEFINED BLOCK WRITE"); /* to make compiler happy, use params */ __COUTV__((void*)address); __COUTV__((void*)writeValue); __COUTV__(numberOfBytes); }
 
 
    void                                runSequenceOfCommands       (const std::string& treeLinkName);
 
    static void                         sendAsyncExceptionToGateway     (FEVInterface* fe, const std::string& errMsg, bool isPauseException, bool isStopException);
 
    virtual void                                configure                   (void)
    {
        __COUT__ << "\t Configure" << std::endl;
        runSequenceOfCommands(
            "LinkToConfigureSequence"); /*Run Configure Sequence Commands*/
    }
    virtual void                                start                       (std::string /*runNumber*/)
    {
        __COUT__ << "\t Start" << std::endl;
        runSequenceOfCommands("LinkToStartSequence"); /*Run Start Sequence Commands*/
    }
    virtual void                                stop                        (void)
    {
        __COUT__ << "\t Stop" << std::endl;
        runSequenceOfCommands("LinkToStopSequence"); /*Run Stop Sequence Commands*/
    }
    virtual void                                halt                        (void) { stop(); }
    virtual void                                pause                       (void) { stop(); }
    virtual void                                resume                      (void) { start(""); }
    virtual bool                                running                     (void) { /*while(WorkLoop::continueWorkLoop_){;}*/ return false; } 
    virtual void                        configureSlowControls       (void);
    void                                addSlowControlsChannels     (ConfigurationTree slowControlsGroupLink, std::map<std::string /* ROC UID*/, FESlowControlsChannel>* mapOfSlowControlsChannels);
 
    virtual void                        resetSlowControlsChannelIterator (void);
    virtual FESlowControlsChannel*      getNextSlowControlsChannel  (void);
    virtual unsigned int                getSlowControlsChannelCount (void);
    bool                                slowControlsRunning         (void);  
    void                                startSlowControlsWorkLoop   (void) { slowControlsWorkLoop_.startWorkLoop(); }
    void                                stopSlowControlsWorkLoop    (void) { slowControlsWorkLoop_.stopWorkLoop(); }
 
    static const std::string                        UNKNOWN_TYPE;
 
  protected:
    std::map<std::string, FESlowControlsChannel>    mapOfSlowControlsChannels_;
    std::map<std::string,
        FESlowControlsChannel>::iterator            slowControlsChannelsIterator_;
    FESlowControlsWorkLoop                          slowControlsWorkLoop_;
    std::atomic<bool>                               slowControlsWorkLoopShouldRun_{true};
  public:
    static const std::string DEFAULT; //for default arg values in FE macro definitions
 
    using frontEndMacroArg_t        = std::pair<const std::string /* arg name */, std::string /* arg return value */>;
    using frontEndMacroArgs_t       = std::vector<frontEndMacroArg_t>&;
    using frontEndMacroConstArgs_t  = const std::vector<frontEndMacroArg_t>&;
    struct frontEndMacroStruct_t;  
    using frontEndMacroFunction_t   = void (ots::FEVInterface::*)(__ARGS__); 
    struct frontEndMacroStruct_t  
    {
        frontEndMacroStruct_t(
            const std::string&              feMacroName,
            const frontEndMacroFunction_t&  feMacroFunction,
            const std::vector<std::string>& namesOfInputArgs,
            const std::vector<std::string>& namesOfOutputArgs,
            const std::string&              requiredUserPermissions = "1" /*Level definition: 0:no-access,1:=user,255:=admin*/,
            const std::string&              allowedCallingFrontEnds = "*" /*StringMacros:: wild card set match string (i.e. string-to-set, then wild-card-set match)*/,
            const std::string&              feMacroTooltip = "")
            : feMacroName_                  (feMacroName)
            , macroFunction_                (feMacroFunction)
            , namesOfInputArguments_        (namesOfInputArgs)
            , namesOfOutputArguments_       (namesOfOutputArgs)
            , requiredUserPermissions_      (requiredUserPermissions)
            , allowedCallingFrontEnds_      (allowedCallingFrontEnds)
            , feMacroTooltip_               (feMacroTooltip)
        {
        }
 
        const std::string               feMacroName_;
        const frontEndMacroFunction_t   macroFunction_;  
        const std::vector<std::string>  namesOfInputArguments_, namesOfOutputArguments_;
        const std::string               requiredUserPermissions_;
        const std::string               allowedCallingFrontEnds_;
        const std::string               feMacroTooltip_;
    }; //end frontEndMacroStruct_t
    const std::map<std::string, frontEndMacroStruct_t>& getMapOfFEMacroFunctions(void)
    {
        return mapOfFEMacroFunctions_;
    }
    void                                runSelfFrontEndMacro        (
        const std::string&                                      feMacroName,
        const std::vector<FEVInterface::frontEndMacroArg_t>&    inputArgs,
        std::vector<FEVInterface::frontEndMacroArg_t>&          outputArgs);
    struct macroStruct_t
    {
        macroStruct_t(const std::string& macroString);
 
        enum
        {
            OP_TYPE_READ,
            OP_TYPE_WRITE,
            OP_TYPE_DELAY,
        };
 
        struct readOp_t
        {
            uint64_t    address_;
            bool        addressIsVar_;
            std::string addressVarName_;
            bool        dataIsVar_;
            std::string dataVarName_;
        };  // end macroStruct_t::writeOp_t declaration
 
        struct writeOp_t
        {
            uint64_t    address_;
            bool        addressIsVar_;
            std::string addressVarName_;
            uint64_t    data_;
            bool        dataIsVar_;
            std::string dataVarName_;
        };  // end macroStruct_t::writeOp_t declaration
 
        struct delayOp_t
        {
            uint64_t    delay_;  
            bool        delayIsVar_;
            std::string delayVarName_;
        };  // end macroStruct_t::writeOp_t declaration
 
        std::string                             macroName_;
        std::vector<std::pair<unsigned int /*op type*/,
                              unsigned int /*index in specific type vector*/> >
                                                operations_;
        std::vector<macroStruct_t::readOp_t>    readOps_;
        std::vector<macroStruct_t::writeOp_t>   writeOps_;
        std::vector<macroStruct_t::delayOp_t>   delayOps_;
        std::set<std::string>                   namesOfInputArguments_, namesOfOutputArguments_;
        bool                                    lsbf_;  
    }; // end macroStruct_t declaration
  protected:
    void runMacro(FEVInterface::macroStruct_t&                        macro,
                  std::map<std::string /*name*/, uint64_t /*value*/>& variableMap);
 
  public:
    template<class T>
    void                            sendToFrontEnd              (const std::string& targetInterfaceID, const T& value) const;
    void                            runFrontEndMacro            (const std::string& targetInterfaceID,const std::string& feMacroName, const std::vector<FEVInterface::frontEndMacroArg_t>& inputArgs, std::vector<FEVInterface::frontEndMacroArg_t>& outputArgs) const;
 
    void                            PauseResumeSlowControls     (__ARGS__);
 
    template<class T>
    void                            receiveFromFrontEnd         (const std::string& requester, T& retValue, unsigned int timeoutInSeconds = 1) const;
    void                            receiveFromFrontEnd         (const std::string& requester, std::string& retValue, unsigned int timeoutInSeconds = 1) const;
    template<class T>
    T                               receiveFromFrontEnd         (const std::string& requester = "*", unsigned int timeoutInSeconds = 1) const;
    std::string                     receiveFromFrontEnd         (const std::string& requester = "*", unsigned int timeoutInSeconds = 1) const;
 
  protected:
    bool                            workLoopThread              (toolbox::task::WorkLoop* workLoop);
 
    std::string                                     interfaceUID_, interfaceType_;
    std::string                                     mfSubject_; 
 
    unsigned int                                    universalAddressSize_ = 0;
    unsigned int                                    universalDataSize_    = 0;
 
 
    std::map<std::string, frontEndMacroStruct_t>    mapOfFEMacroFunctions_;  
    void                            registerFEMacroFunction     (
        const std::string&                                          feMacroName,
        frontEndMacroFunction_t                                     feMacroFunction,
        const std::vector<std::string>&                             namesOfInputArgs,
        const std::vector<std::string>&                             namesOfOutputArgs,
        uint8_t                                                     requiredUserPermissions = 1 /*Level definition: 0:no-access,1:=user,255:=admin*/,
        const std::string&                                          allowedCallingFEs = "*" /*StringMacros:: wild card set match string (i.e. string-to-set, then wild-card-set match)*/,
        const std::string&                                          feMacroTooltip = "");
    void                            registerFEMacroFunction     (
        const std::string&                                          feMacroName,
        frontEndMacroFunction_t                                     feMacroFunction,
        const std::vector<std::string>&                             namesOfInputArgs,
        const std::vector<std::string>&                             namesOfOutputArgs,
        const std::string&                                          requiredUserPermissions = WebUsers::DEFAULT_USER_GROUP + ":1" /*Level definition: 0:no-access,1:=user,255:=admin*/,
        const std::string&                                          allowedCallingFEs = "*" /*StringMacros:: wild card set match string (i.e. string-to-set, then wild-card-set match)*/,
        const std::string&                                          feMacroTooltip = "");
 
  public:  
    static const std::string&       getFEMacroConstArgument     (frontEndMacroConstArgs_t args, const std::string& argName);
    static std::string&             getFEMacroArgument          (frontEndMacroArgs_t args, const std::string&  argName);
  protected:
    template<class T>
    std::string&                    setFEMacroArgumentValue     (frontEndMacroArgs_t args, const std::string& argName, const T& value) const;
  public:
    template<class T>
    static std::string&             emplaceFEMacroArgumentValue (frontEndMacroArgs_t args, const std::string&  argName, const T& value);
 
    void                            setFEMacroPercentDone       (unsigned int percentDone);
    int                             getFEMacroPercentDone       (std::thread::id threadID) const;
    void                            clearFEMacroPercentDone     (std::thread::id threadID);
 
  protected:
    mutable std::mutex                     feMacroPercentDoneMutex_;
    std::map<std::thread::id, int>         feMacroPercentDoneMap_;
 
};  // end FEVInterface class
 
template<class T>
T               getFEMacroConstArgumentValue                    (FEVInterface::frontEndMacroConstArgs_t args, const std::string& argName, const T& defaultValue = T());
 
template<>
std::string     getFEMacroConstArgumentValue<std::string>       (FEVInterface::frontEndMacroConstArgs_t args, const std::string& argName, const std::string& defaultValue);
 
template<class T>
T               getFEMacroArgumentValue                         (FEVInterface::frontEndMacroArgs_t args, const std::string& argName);
 
template<>
std::string     getFEMacroArgumentValue<std::string>            (FEVInterface::frontEndMacroArgs_t argsIn, const std::string& argName);
 
#include "otsdaq/FECore/FEVInterface.icc"
 
// clang-format on
 
}  // namespace ots
 
#endif