content: /*
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
   ~                                                                               ~
   ~ The MIT License (MIT)                                                         ~
   ~                                                                               ~
   ~ Copyright (c) 2015-2025 miaixz.org OSHI and other contributors.               ~
   ~                                                                               ~
   ~ Permission is hereby granted, free of charge, to any person obtaining a copy  ~
   ~ of this software and associated documentation files (the "Software"), to deal ~
   ~ in the Software without restriction, including without limitation the rights  ~
   ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell     ~
   ~ copies of the Software, and to permit persons to whom the Software is         ~
   ~ furnished to do so, subject to the following conditions:                      ~
   ~                                                                               ~
   ~ The above copyright notice and this permission notice shall be included in    ~
   ~ all copies or substantial portions of the Software.                           ~
   ~                                                                               ~
   ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR    ~
   ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,      ~
   ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE   ~
   ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER        ~
   ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ~
   ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN     ~
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   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
  */
  package org.miaixz.bus.health.unix.platform.solaris.driver.kstat;
  
  import org.miaixz.bus.core.lang.annotation.ThreadSafe;
  import org.miaixz.bus.core.lang.tuple.Pair;
  import org.miaixz.bus.health.unix.platform.solaris.KstatKit;
  import org.miaixz.bus.health.unix.platform.solaris.KstatKit.KstatChain;
  import org.miaixz.bus.health.unix.platform.solaris.software.SolarisOperatingSystem;
  
  import com.sun.jna.platform.unix.solaris.LibKstat.Kstat;
  
  /**
   * Utility to query geom part list
   *
   * @author Kimi Liu
   * @since Java 17+
   */
  @ThreadSafe
  public final class SystemPages {
  
      /**
       * Queries the {@code system_pages} kstat and returns available and physical memory
       *
       * @return A pair with the available and total memory, in pages. Mutiply by page size for bytes.
       */
      public static Pair<Long, Long> queryAvailableTotal() {
          if (SolarisOperatingSystem.HAS_KSTAT2) {
              // Use Kstat2 implementation
              return queryAvailableTotal2();
          }
          long memAvailable = 0;
          long memTotal = 0;
          // Get first result
          try (KstatChain kc = KstatKit.openChain()) {
              Kstat ksp = kc.lookup(null, -1, "system_pages");
              // Set values
              if (ksp != null && kc.read(ksp)) {
                  memAvailable = KstatKit.dataLookupLong(ksp, "availrmem"); // not a typo
                  memTotal = KstatKit.dataLookupLong(ksp, "physmem");
              }
          }
          return Pair.of(memAvailable, memTotal);
      }
  
      private static Pair<Long, Long> queryAvailableTotal2() {
          Object[] results = KstatKit.queryKstat2("kstat:/pages/unix/system_pages", "availrmem", "physmem");
          long avail = results[0] == null ? 0L : (long) results[0];
          long total = results[1] == null ? 0L : (long) results[1];
          return Pair.of(avail, total);
      }
  
  }
  