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.freebsd;
  
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  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;
  import org.miaixz.bus.health.Parsing;
  
  /**
   * Reads from procstat into a map
   *
   * @author Kimi Liu
   * @since Java 17+
   */
  @ThreadSafe
  public final class ProcstatKit {
  
      /**
       * Gets a map containing current working directory info
       *
       * @param pid a process ID, optional
       * @return a map of process IDs to their current working directory. If {@code pid} is a negative number, all
       *         processes are returned; otherwise the map may contain only a single element for {@code pid}
       */
      public static Map<Integer, String> getCwdMap(int pid) {
          List<String> procstat = Executor.runNative("procstat -f " + (pid < 0 ? "-a" : pid));
          Map<Integer, String> cwdMap = new HashMap<>();
          for (String line : procstat) {
              String[] split = Pattern.SPACES_PATTERN.split(line.trim(), 10);
              if (split.length == 10 && split[2].equals("cwd")) {
                  cwdMap.put(Parsing.parseIntOrDefault(split[0], -1), split[9]);
              }
          }
          return cwdMap;
      }
  
      /**
       * Gets current working directory info
       *
       * @param pid a process ID
       * @return the current working directory for that process.
       */
      public static String getCwd(int pid) {
          List<String> procstat = Executor.runNative("procstat -f " + pid);
          for (String line : procstat) {
              String[] split = Pattern.SPACES_PATTERN.split(line.trim(), 10);
              if (split.length == 10 && split[2].equals("cwd")) {
                  return split[9];
              }
          }
          return Normal.EMPTY;
      }
  
      /**
       * Gets open files
       *
       * @param pid The process ID
       * @return the number of open files.
       */
      public static long getOpenFiles(int pid) {
          long fd = 0L;
          List<String> procstat = Executor.runNative("procstat -f " + pid);
          for (String line : procstat) {
              String[] split = Pattern.SPACES_PATTERN.split(line.trim(), 10);
              if (split.length == 10 && !"Vd-".contains(split[4])) {
                  fd++;
              }
          }
          return fd;
      }
  
  }
  