/*
    * Copyright 2016-2022 The OSHI Project Contributors
    * SPDX-License-Identifier: MIT
    */
   package oshi.jna.platform.mac;
   
   import com.sun.jna.Native;
   import com.sun.jna.NativeLong;
   import com.sun.jna.Structure;
  import com.sun.jna.Structure.FieldOrder;
  import com.sun.jna.ptr.NativeLongByReference;
  
  import oshi.util.Util;
  
  /**
   * The I/O Kit framework implements non-kernel access to I/O Kit objects (drivers and nubs) through the device-interface
   * mechanism.
   */
  public interface IOKit extends com.sun.jna.platform.mac.IOKit {
  
      IOKit INSTANCE = Native.load("IOKit", IOKit.class);
  
      /*
       * Do not commit SMC structures to JNA
       */
      /**
       * Holds the return value of SMC version query.
       */
      @FieldOrder({ "major", "minor", "build", "reserved", "release" })
      class SMCKeyDataVers extends Structure {
          public byte major;
          public byte minor;
          public byte build;
          public byte reserved;
          public short release;
      }
  
      /**
       * Holds the return value of SMC pLimit query.
       */
      @FieldOrder({ "version", "length", "cpuPLimit", "gpuPLimit", "memPLimit" })
      class SMCKeyDataPLimitData extends Structure {
          public short version;
          public short length;
          public int cpuPLimit;
          public int gpuPLimit;
          public int memPLimit;
      }
  
      /**
       * Holds the return value of SMC KeyInfo query.
       */
      @FieldOrder({ "dataSize", "dataType", "dataAttributes" })
      class SMCKeyDataKeyInfo extends Structure {
          public int dataSize;
          public int dataType;
          public byte dataAttributes;
      }
  
      /**
       * Holds the return value of SMC query.
       */
      @FieldOrder({ "key", "vers", "pLimitData", "keyInfo", "result", "status", "data8", "data32", "bytes" })
      class SMCKeyData extends Structure implements AutoCloseable {
          public int key;
          public SMCKeyDataVers vers;
          public SMCKeyDataPLimitData pLimitData;
          public SMCKeyDataKeyInfo keyInfo;
          public byte result;
          public byte status;
          public byte data8;
          public int data32;
          public byte[] bytes = new byte[32];
  
          @Override
          public void close() {
              Util.freeMemory(getPointer());
          }
      }
  
      /**
       * Holds an SMC value
       */
      @FieldOrder({ "key", "dataSize", "dataType", "bytes" })
      class SMCVal extends Structure implements AutoCloseable {
          public byte[] key = new byte[5];
          public int dataSize;
          public byte[] dataType = new byte[5];
          public byte[] bytes = new byte[32];
  
          @Override
          public void close() {
              Util.freeMemory(getPointer());
          }
      }
  
      /*
       * Beta/Non-API do not commit to JNA
       */
     int IOConnectCallStructMethod(IOConnect connection, int selector, Structure inputStructure,
             NativeLong structureInputSize, Structure outputStructure, NativeLongByReference structureOutputSize);
 }