Package org.nlogo.prim

Source Code of org.nlogo.prim._askconcurrent

// (C) Uri Wilensky. https://github.com/NetLogo/NetLogo

package org.nlogo.prim;

import org.nlogo.agent.AgentSet;
import org.nlogo.api.I18N;
import org.nlogo.api.LogoException;
import org.nlogo.api.Syntax;
import org.nlogo.nvm.Command;
import org.nlogo.nvm.EngineException;

public final strictfp class _askconcurrent
    extends Command
    implements org.nlogo.nvm.CustomAssembled {
  @Override
  public Syntax syntax() {
    return Syntax.commandSyntax
        (new int[]{Syntax.AgentsetType(), Syntax.CommandBlockType()},
            "OTPL", "?", true);
  }

  @Override
  public String toString() {
    return super.toString() + ":+" + offset;
  }

  @Override
  public void perform(final org.nlogo.nvm.Context context) throws LogoException {
    AgentSet agentset = argEvalAgentSet(context, 0);
    if (!(context.agent instanceof org.nlogo.agent.Observer)) {
      if (agentset == world.turtles()) {
        throw new EngineException
            (context, this, I18N.errorsJ().get("org.nlogo.prim.$common.onlyObserverCanAskAllTurtles"));
      }
      if (agentset == world.patches()) {
        throw new EngineException
            (context, this, I18N.errorsJ().get("org.nlogo.prim.$common.onlyObserverCanAskAllPatches"));
      }
    }
    if (context.makeChildrenExclusive()) {
      context.runExclusiveJob(agentset, next);
    } else {
      context.waiting = true;
      workspace.addJobFromJobThread(context.makeConcurrentJob(agentset));
    }
    context.ip = offset;
  }

  public void assemble(org.nlogo.nvm.AssemblerAssistant a) {
    a.add(this);
    a.block();
    a.done();
    a.resume();
  }
}
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