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     ~
   ~ THE SOFTWARE.                                                                 ~
   ~                                                                               ~
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
  */
  package org.miaixz.bus.health.unix.platform.openbsd;
  
  import java.util.List;
  
  import org.miaixz.bus.core.center.regex.Pattern;
  import org.miaixz.bus.core.lang.Normal;
  import org.miaixz.bus.core.lang.annotation.ThreadSafe;
  import org.miaixz.bus.health.Executor;
  
  /**
   * Reads from fstat.
   *
   * @author Kimi Liu
   * @since Java 17+
   */
  @ThreadSafe
  public final class FstatKit {
  
      /**
       * Gets current working directory info (using {@code ps} actually).
       *
       * @param pid a process ID
       * @return the current working directory for that process.
       */
      public static String getCwd(int pid) {
          List<String> ps = Executor.runNative("ps -axwwo cwd -p " + pid);
          if (ps.size() > 1) {
              return ps.get(1);
          }
          return Normal.EMPTY;
      }
  
      /**
       * Gets open number of files.
       *
       * @param pid The process ID
       * @return the number of open files.
       */
      public static long getOpenFiles(int pid) {
          long fd = 0L;
          List<String> fstat = Executor.runNative("fstat -sp " + pid);
          for (String line : fstat) {
              String[] split = Pattern.SPACES_PATTERN.split(line.trim(), 11);
              if (split.length == 11 && !"pipe".contains(split[4]) && !"unix".contains(split[4])) {
                  fd++;
              }
          }
          // subtract 1 for header row
          return fd - 1;
      }
  
  }
  