com.github.jjYBdx4IL.utils.jna.windows.ProcessList Maven / Gradle / Ivy

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/*
 * Copyright © 2017 jjYBdx4IL (https://github.com/jjYBdx4IL)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.github.jjYBdx4IL.utils.jna.windows;

import com.sun.jna.Native;
import com.sun.jna.platform.win32.Kernel32;
import com.sun.jna.platform.win32.Tlhelp32;
import com.sun.jna.platform.win32.WinDef;
import com.sun.jna.platform.win32.WinNT;
import com.sun.jna.win32.W32APIOptions;

import java.util.ArrayList;
import java.util.List;

//CHECKSTYLE:OFF
/**
 *
 * @author jjYBdx4IL
 */
public class ProcessList {

    public static class Process {

        public int id;
        public String exe;

        public Process(int id, String exe) {
            this.id = id;
            this.exe = exe;
        }

        @Override
        public String toString() {
            return "Process{" + "id=" + id + ", exe=" + exe + '}';
        }
    }

    public static List get() {
        List result = new ArrayList<>();
        Kernel32 kernel32 = (Kernel32) Native.loadLibrary(Kernel32.class, W32APIOptions.UNICODE_OPTIONS);
        Tlhelp32.PROCESSENTRY32.ByReference processEntry = new Tlhelp32.PROCESSENTRY32.ByReference();

        WinNT.HANDLE snapshot = kernel32.CreateToolhelp32Snapshot(Tlhelp32.TH32CS_SNAPPROCESS, new WinDef.DWORD(0));
        try {
            while (kernel32.Process32Next(snapshot, processEntry)) {
                result.add(new Process(processEntry.th32ProcessID.intValue(), Native.toString(processEntry.szExeFile)));
            }
        } finally {
            kernel32.CloseHandle(snapshot);
        }
        return result;
    }
}