gaction.cc

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// gemc
#include "gaction.h"
#include "event/gEventAction.h"
#include "generator/gPrimaryGeneratorAction.h"
#include "run/gRunAction.h"
#include "tracking/gTrackProvenance.h"
#include "tracking/gTrackingAction.h"
#include "gparticle_options.h"
 
// Construct the action initializer and keep shared services available for later
// action registration on worker and master execution contexts.
GAction::GAction(std::shared_ptr<GOptions>                           gopts,
                 std::shared_ptr<gdynamicdigitization::dRoutinesMap> digi_map) :
    GBase(gopts, GACTION_LOGGER),
    goptions(std::move(gopts)),
    digitization_routines_map(std::move(digi_map)),
    sharedParticles_(std::make_shared<std::vector<GparticlePtr>>(
        gparticle::getGParticlesFromOption(goptions, log))) {
 
    log->debug(CONSTRUCTOR, FUNCTION_NAME);
 
}
 
 
// Register the master-thread actions.
// In GEMC, the master needs only the run action because it does not execute
// primary generation or per-event processing.
void GAction::BuildForMaster() const {
    log->debug(NORMAL, FUNCTION_NAME);
 
    SetUserAction(new GRunAction(goptions, digitization_routines_map));
}
 
// Register the worker-thread actions.
// Workers execute the full event lifecycle, so they need the primary generator,
// the run action, and the event action.
void GAction::Build() const {
    const auto thread_id = G4Threading::G4GetThreadId();
 
    log->debug(NORMAL, FUNCTION_NAME, "thread id: " + std::to_string(thread_id));
 
    // Primary generation is event-scoped and therefore worker-owned.
    SetUserAction(new GPrimaryGeneratorAction(goptions, sharedParticles_));
 
    // The run action is shared conceptually across the worker-thread lifecycle and
    // is passed to the event action so event processing can access run services.
    auto* run_action = new GRunAction(goptions, digitization_routines_map);
    SetUserAction(run_action);
 
    std::shared_ptr<GTrackProvenance> track_provenance;
    const bool save_ancestors = goptions->getSwitch(SAVE_ALL_ANCESTORS_SWITCH);
    if (goptions->getSwitch(SAVE_ORIGINAL_TRACK_SWITCH) || save_ancestors) {
        track_provenance = std::make_shared<GTrackProvenance>(save_ancestors);
        SetUserAction(new GTrackingAction(track_provenance));
    }
 
    // The event action consumes the run action as a non-owning dependency.
    SetUserAction(new GEventAction(goptions, run_action, track_provenance));
}