超实用文件监控多线程FTP上传工具
2019-09-28 11:19 Dorisoy 阅读(994) 评论(1) 编辑 收藏 举报这是自己很久以前写的一个多线程FTP 上传工具，支持多账户，自定义线程数，自定义文件监控目录，可用做文件发布使用，非常实用，今天有小伙伴问起，现分享出来：
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.IO; 5 using System.Text; 6 using System.Threading.Tasks; 7 8 namespace NuFTPCmmndv5 9 { 10 public class TaskFile 11 { 12 public TaskFile() 13 { 14 GUID = Guid.NewGuid(); 15 } 16 private long _fileSize { get; set; } 17 18 public Guid GUID { get; set; } 19 public string HOST { get; set; } 20 public string DIR { get; set; } 21 public string LCD { get; set; } 22 public string Priority { get; set; } 23 public string Filename { get; set; } 24 public long Size 25 { 26 get 27 { 28 if (File.Exists(this.LCD)) 29 { 30 _fileSize = new FileInfo(this.LCD).Length; 31 }; 32 return _fileSize; 33 } 34 set { _fileSize = value; } 35 } 36 37 } 38 }
1 using System; 2 using System.IO; 3 using System.Collections.Generic; 4 using System.ComponentModel; 5 using System.Data; 6 using System.Drawing; 7 using System.Linq; 8 using System.Text; 9 using System.Threading; 10 using System.Threading.Tasks; 11 using System.Windows.Forms; 12 13 using FluentScheduler; 14 15 namespace NuFTPCmmndv5 16 { 17 public partial class FormMain : Form 18 { 19 20 private Setting setting; 21 private static Semaphore sema = new Semaphore(1, 1); 22 private object syncRoot = new object(); 23 public FormMain() 24 { 25 InitializeComponent(); 26 setting = new Setting(); 27 } 28 29 private void FormMain_Load(object sender, EventArgs e) 30 { 31 setting = setting.loadSetting(); 32 33 if (Directory.Exists(setting.FolderToMonitor + "err\\")) 34 Directory.CreateDirectory(setting.FolderToMonitor + "err\\"); 35 36 if (Directory.Exists(setting.FolderToMonitor + "pending\\")) 37 Directory.CreateDirectory(setting.FolderToMonitor + "pending\\"); 38 39 foreach (var f in new DirectoryInfo(setting.FolderToMonitor + "pending\\").GetFiles()) 40 { 41 f.CopyTo(setting.FolderToMonitor + "err\\" + f.Name, true); 42 f.Delete(); 43 } 44 45 SetStatus(setting.FolderToMonitor); 46 47 //开启上传任务 48 StartRunUploadTask(); 49 50 //开始监控任务 51 StartRunMonitorTask(1); 52 } 53 54 55 /// <summary> 56 /// 启动监控任务 57 /// </summary> 58 /// <param name="timer"></param> 59 public void StartRunMonitorTask(int timer) 60 { 61 JobManager.AddJob(() => 62 { 63 sema.WaitOne(); 64 SetToolStripStatusStatus(DateTime.Now + " (" + DataGridFiles.Rows.Count + ")"); 65 RunTask(); 66 sema.Release(); 67 }, 68 t => 69 { 70 t.WithName("StartRunMonitorTask").ToRunNow().AndEvery(timer).Seconds(); 71 }); 72 } 73 74 /// <summary> 75 /// 运行监控任务 76 /// </summary> 77 public void RunTask() 78 { 79 //lock (syncRoot) 80 //{ 81 #region 82 try 83 { 84 //每5分钟读取出错文件并追加到待上传 85 if (DateTime.Now.Second == 0 && DateTime.Now.Minute % 5 == 0) 86 { 87 foreach (var f in new DirectoryInfo(setting.FolderToMonitor + "err\\").GetFiles()) 88 { 89 f.CopyTo(setting.FolderToMonitor + f.Name, true); 90 f.Delete(); 91 LogText("Retrying: " + f.Name); 92 } 93 } 94 //写监控 95 WriteMon(DateTime.Now.ToString()); 96 97 //待上传文件大于200 报警 98 if (DataGridFiles.Rows.Count > 200) 99 { 100 WriteMon("=ERROR=NuFTPCmmndv4 pending upload: " + DataGridFiles.Rows.Count); 101 } 102 103 //删除超过30天日志 104 foreach (var f in new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory + "logs\\").GetFiles()) 105 { 106 if (f.LastWriteTime < DateTime.Now.AddDays(-30)) 107 f.Delete(); 108 } 109 } 110 catch (Exception ex) 111 { 112 } 113 #endregion 114 115 //读取dat文件 116 foreach (var f in new DirectoryInfo(setting.FolderToMonitor).GetFiles("*.dat")) 117 { 118 try 119 { 120 var task = new TaskFile(); 121 122 #region 123 //按行读取 124 int curLine = 1; 125 using (var fileStream = new FileStream(f.FullName, FileMode.Open, FileAccess.Read)) 126 { 127 fileStream.Seek(0, SeekOrigin.Begin); 128 string[] lines = System.IO.File.ReadAllLines(f.FullName); 129 using (var streamReader = new StreamReader(fileStream, Encoding.Default)) 130 { 131 string content = streamReader.ReadLine(); 132 while (!string.IsNullOrEmpty(content)) 133 { 134 if (content.Substring(0, 5) == "HOST=") 135 { 136 //FTP 137 task.HOST = content.Substring(content.IndexOf("=") + 1); 138 } 139 else if (content.Substring(0, 4) == "LCD=") 140 { 141 //本地目录文件 142 task.LCD = content.Substring(content.IndexOf("=") + 1); 143 } 144 else if (content.Substring(0, 4) == "DIR=") 145 { 146 //远程对应目录文件 147 task.DIR = content.Substring(content.IndexOf("=") + 1); 148 task.DIR = task.DIR.Replace("\\", "/"); 149 } 150 else if (content.Substring(0, 9) == "priority=") 151 { 152 //优先级 153 task.Priority = content.Substring(content.IndexOf("=") + 1); 154 } 155 156 content = streamReader.ReadLine(); 157 curLine++; 158 } 159 } 160 } 161 162 #endregion 163 164 //上传文件名 165 task.Filename = f.Name; 166 167 //拷贝到待上传目录 168 f.CopyTo(setting.FolderToMonitor + "pending\\" + f.Name, true); 169 f.Delete(); 170 171 //遍历账户配置 172 var account = setting.FTPAccounts.Select(a => a).Where(a => a.FTPName == task.HOST).FirstOrDefault(); 173 if (account != null) 174 { 175 //是否已经存在 176 if (!account.Contains(task)) 177 { 178 //添加到待传队列 179 account.AddQueue(task); 180 //刷新GridView 181 InvokeAddGridView(this.DataGridFiles, task); 182 } 183 else 184 { 185 //存在则移除文件 186 LogText(task.HOST + " The file already exists in the Queue:" + task.HOST + "/" + task.DIR); 187 } 188 } 189 } 190 catch (Exception ex) 191 { 192 LogText(ex.Message + ";" + ex.StackTrace); 193 } 194 } 195 //} 196 } 197 /// <summary> 198 /// 开启上传任务 199 /// </summary> 200 public void StartRunUploadTask() 201 { 202 foreach (var account in setting.FTPAccounts) 203 { 204 account.setting = setting; 205 //注册上传完成事件 206 account.Completed += account_Completed; 207 //注册上传进度事件 208 account.ProcessProgress += account_ProcessProgress; 209 //注册删除上传事件 210 account.Deleted += account_Deleted; 211 //终止上传事件 212 account.Aborted += account_Aborted; 213 //注册上传日志事件 214 account.ProcessLog += account_ProcessLog; 215 //开始上传队列 216 account.Start(); 217 } 218 } 219 220 221 private void account_ProcessProgress(TaskFile arg1, FTPAccount.CompetedEventArgs arg2) 222 { 223 InvokeUpdateGridView(this.DataGridFiles, arg1, arg2); 224 } 225 private void account_Completed(TaskFile arg1, FTPAccount.CompetedEventArgs arg2) 226 { 227 InvokeRemoveGridView(this.DataGridFiles, arg1); 228 } 229 private void account_Aborted(TaskFile arg1, FTPAccount.CompetedEventArgs arg2) 230 { 231 foreach (FileInfo f in new DirectoryInfo(setting.FolderToMonitor + "pending\\").GetFiles()) 232 { 233 if (arg1.Filename == f.Name) 234 { 235 f.CopyTo(setting.FolderToMonitor + "err\\" + f.Name, true); 236 f.Delete(); 237 break; 238 } 239 } 240 } 241 private void account_Deleted(TaskFile arg1, FTPAccount.CompetedEventArgs arg2) 242 { 243 //删除行 244 InvokeRemoveGridView(this.DataGridFiles, arg1); 245 //删除文件 246 try 247 { 248 System.IO.File.Delete(setting.FolderToMonitor + "err\\" + arg1.Filename); 249 } 250 catch (Exception ex) 251 { 252 LogText(ex.Message + ";" + ex.StackTrace); 253 } 254 } 255 private void account_ProcessLog(string obj) 256 { 257 LogText(obj); 258 } 259 260 261 262 public void InvokeAddGridView(DataGridView dataGridView, TaskFile task) 263 { 264 if (dataGridView.InvokeRequired) 265 { 266 this.Invoke(new Action(() => 267 { 268 AddGridView(dataGridView, task); 269 })); 270 return; 271 } 272 AddGridView(dataGridView, task); 273 } 274 public void AddGridView(DataGridView dataGridView, TaskFile task) 275 { 276 try 277 { 278 int index = dataGridView.Rows.Add(); 279 dataGridView.Rows[index].Cells[0].Value = task.LCD; 280 dataGridView.Rows[index].Cells[1].Value = FormatFileSize(task.Size); 281 dataGridView.Rows[index].Cells[2].Value = "Pending"; 282 dataGridView.Rows[index].Cells[3].Value = task.Filename; 283 dataGridView.Rows[index].Cells[4].Value = task.GUID.ToString(); 284 } 285 catch (Exception ex) 286 { 287 LogText(ex.Message + ";" + ex.StackTrace); 288 } 289 } 290 291 292 public String FormatFileSize(Int64 fileSize) 293 { 294 if (fileSize < 0) 295 return "0"; 296 else if (fileSize >= 1024 * 1024 * 1024) 297 return string.Format("{0:########0.00} GB", ((Double)fileSize) / (1024 * 1024 * 1024)); 298 else if (fileSize >= 1024 * 1024) 299 return string.Format("{0:####0.00} MB", ((Double)fileSize) / (1024 * 1024)); 300 else if (fileSize >= 1024) 301 return string.Format("{0:####0.00} KB", ((Double)fileSize) / 1024); 302 else 303 return string.Format("{0} bytes", fileSize); 304 } 305 306 307 public void InvokeUpdateGridView(DataGridView dataGridView, TaskFile task, FTPAccount.CompetedEventArgs arg) 308 { 309 if (dataGridView.InvokeRequired) 310 { 311 this.Invoke(new Action(() => 312 { 313 UpdateGridView(dataGridView, task, arg); 314 })); 315 return; 316 } 317 UpdateGridView(dataGridView, task, arg); 318 } 319 public void UpdateGridView(DataGridView dataGridView, TaskFile task, FTPAccount.CompetedEventArgs arg) 320 { 321 try 322 { 323 foreach (DataGridViewRow r in dataGridView.Rows) 324 { 325 if (!r.IsNewRow && (r.Cells["Guid"].Value.ToString() == task.GUID.ToString())) 326 { 327 if (arg.uploadStatus == FTPAccount.UploadStatus.Failed) 328 { 329 r.Cells["Completed"].Value = "Failed"; 330 r.Cells["Completed"].Style.BackColor = Color.LightPink; 331 } 332 else if (arg.uploadStatus == FTPAccount.UploadStatus.Timeout) 333 { 334 r.Cells["Completed"].Value = "Timeout"; 335 r.Cells["Completed"].Style.BackColor = Color.LightPink; 336 } 337 else if (arg.uploadStatus == FTPAccount.UploadStatus.Cancel) 338 { 339 r.Cells["Completed"].Value = "Cancel"; 340 r.Cells["Completed"].Style.BackColor = Color.LightPink; 341 } 342 else if (arg.uploadStatus == FTPAccount.UploadStatus.Uploading && arg.CompetedPrecent != 0) 343 { 344 r.Cells["Completed"].Value = arg.CompetedPrecent + "%"; 345 r.Cells["Completed"].Style.BackColor = Color.White; 346 } 347 else if (arg.uploadStatus == FTPAccount.UploadStatus.Uploading && arg.CompetedPrecent == 0) 348 { 349 r.Cells["Completed"].Value = "Uploading"; 350 r.Cells["Completed"].Style.BackColor = Color.White; 351 } 352 } 353 } 354 dataGridView.Sort(dataGridView.Columns["Completed"], ListSortDirection.Ascending); 355 } 356 catch (Exception ex) 357 { 358 LogText(ex.Message + ";" + ex.StackTrace); 359 } 360 } 361 362 363 public void InvokeRemoveGridView(DataGridView dataGridView, TaskFile task) 364 { 365 if (dataGridView.InvokeRequired) 366 { 367 this.Invoke(new Action(() => 368 { 369 RemoveGridView(dataGridView, task); 370 })); 371 return; 372 } 373 RemoveGridView(dataGridView, task); 374 } 375 public void RemoveGridView(DataGridView dataGridView, TaskFile task) 376 { 377 try 378 { 379 foreach (DataGridViewRow r in dataGridView.Rows) 380 { 381 if (!r.IsNewRow && (r.Cells["Guid"].Value.ToString() == task.GUID.ToString())) 382 { 383 dataGridView.Rows.Remove(r); 384 } 385 } 386 } 387 catch (Exception ex) 388 { 389 LogText(ex.Message + ";" + ex.StackTrace); 390 } 391 } 392 393 394 public void WriteMon(string txt) 395 { 396 397 } 398 399 public void LogText(string msg) 400 { 401 var dir = AppDomain.CurrentDomain.BaseDirectory + "logs\\"; 402 if (!Directory.Exists(dir)) 403 Directory.CreateDirectory(dir); 404 405 using (var w = new StreamWriter(dir + DateTime.Now.ToString("yyyy-MM-dd") + ".log", true)) 406 { 407 w.WriteLine(DateTime.Now.ToString() + ": " + msg); 408 w.Close(); 409 } 410 411 if (TextBoxLog.InvokeRequired) 412 { 413 this.Invoke(new Action(() => 414 { 415 TextBoxLog.AppendText(msg + "\r\n"); 416 if (this.TextBoxLog.Lines.Count() > setting.MAX_LOG_LINES) 417 { 418 this.TextBoxLog.Text = ""; 419 } 420 Application.DoEvents(); 421 })); 422 return; 423 } 424 425 TextBoxLog.AppendText(msg + "\r\n"); 426 if (this.TextBoxLog.Lines.Count() > setting.MAX_LOG_LINES) 427 { 428 this.TextBoxLog.Text = ""; 429 } 430 Application.DoEvents(); 431 } 432 433 public void SetStatus(string msg) 434 { 435 if (this.InvokeRequired) 436 { 437 this.Invoke(new Action(() => 438 { 439 this.LabelStatus.Text = msg; 440 Application.DoEvents(); 441 })); 442 return; 443 } 444 this.LabelStatus.Text = msg; 445 Application.DoEvents(); 446 } 447 448 449 public void SetToolStripStatusStatus(string msg) 450 { 451 if (this.InvokeRequired) 452 { 453 this.Invoke(new Action(() => 454 { 455 this.toolStripStatusLabel2.Text = msg; 456 Application.DoEvents(); 457 })); 458 return; 459 } 460 this.toolStripStatusLabel2.Text = msg; 461 Application.DoEvents(); 462 } 463 464 465 public void WriteLog(TextBox textBox, string msg) 466 { 467 if (textBox.InvokeRequired) 468 { 469 textBox.Invoke(new Action(() => 470 { 471 textBox.AppendText(msg + "\r\n"); 472 })); 473 return; 474 } 475 textBox.AppendText(msg + "\r\n"); 476 } 477 478 private void button2_Click(object sender, EventArgs e) 479 { 480 481 if (ButtonPauseResume.Text == "Pause") 482 { 483 JobManager.Stop(); 484 ButtonPauseResume.Text = "Resume"; 485 } 486 else 487 { 488 JobManager.Start(); 489 ButtonPauseResume.Text = "Pause"; 490 } 491 } 492 493 /// <summary> 494 /// 取消上传 495 /// </summary> 496 /// <param name="sender"></param> 497 /// <param name="e"></param> 498 private void cancelUploadToolStripMenuItem_Click(object sender, EventArgs e) 499 { 500 DataGridViewRow row; 501 var task = new TaskFile(); 502 row = DataGridFiles.SelectedRows[0]; 503 var fileName = row.Cells["FileName"].Value.ToString(); 504 505 #region 506 507 if (System.IO.File.Exists(setting.FolderToMonitor + "pending\\" + fileName)) 508 { 509 var f = new FileInfo(setting.FolderToMonitor + "pending\\" + fileName); 510 //按行读取 511 int curLine = 1; 512 using (var fileStream = new FileStream(f.FullName, FileMode.Open, FileAccess.Read)) 513 { 514 fileStream.Seek(0, SeekOrigin.Begin); 515 string[] lines = System.IO.File.ReadAllLines(f.FullName); 516 using (var streamReader = new StreamReader(fileStream, Encoding.Default)) 517 { 518 string content = streamReader.ReadLine(); 519 while (!string.IsNullOrEmpty(content)) 520 { 521 if (content.Substring(0, 5) == "HOST=") 522 { 523 //FTP 524 task.HOST = content.Substring(content.IndexOf("=") + 1); 525 } 526 else if (content.Substring(0, 4) == "LCD=") 527 { 528 //本地目录文件 529 task.LCD = content.Substring(content.IndexOf("=") + 1); 530 } 531 else if (content.Substring(0, 4) == "DIR=") 532 { 533 //远程对应目录文件 534 task.DIR = content.Substring(content.IndexOf("=") + 1); 535 task.DIR = task.DIR.Replace("\\", "/"); 536 } 537 else if (content.Substring(0, 9) == "priority=") 538 { 539 //优先级 540 task.Priority = content.Substring(content.IndexOf("=") + 1); 541 } 542 543 content = streamReader.ReadLine(); 544 curLine++; 545 } 546 } 547 } 548 549 foreach (var account in setting.FTPAccounts) 550 { 551 if (account.FTPName == task.HOST) 552 { 553 account.cancelTask = task; 554 break; 555 } 556 } 557 558 //--------------Copyto file to err 559 f.CopyTo(setting.FolderToMonitor + "err\\" + f.Name, true); 560 System.IO.File.Delete(setting.FolderToMonitor + "pending\\" + f.Name); 561 //--------------Copyto file to err 562 } 563 564 #endregion 565 } 566 567 /// <summary> 568 /// 删除上传 569 /// </summary> 570 /// <param name="sender"></param> 571 /// <param name="e"></param> 572 private void deleteUploadToolStripMenuItem_Click(object sender, EventArgs e) 573 { 574 DataGridViewRow row; 575 var task = new TaskFile(); 576 row = DataGridFiles.SelectedRows[0]; 577 var fileName = row.Cells["FileName"].Value.ToString(); 578 var fileGuid = row.Cells["Guid"].Value.ToString(); 579 #region 580 581 if (System.IO.File.Exists(setting.FolderToMonitor + "pending\\" + fileName)) 582 { 583 var f = new FileInfo(setting.FolderToMonitor + "pending\\" + fileName); 584 //按行读取 585 int curLine = 1; 586 using (var fileStream = new FileStream(f.FullName, FileMode.Open, FileAccess.Read)) 587 { 588 fileStream.Seek(0, SeekOrigin.Begin); 589 string[] lines = System.IO.File.ReadAllLines(f.FullName); 590 using (var streamReader = new StreamReader(fileStream, Encoding.Default)) 591 { 592 string content = streamReader.ReadLine(); 593 while (!string.IsNullOrEmpty(content)) 594 { 595 if (content.Substring(0, 5) == "HOST=") 596 { 597 //FTP 598 task.HOST = content.Substring(content.IndexOf("=") + 1); 599 } 600 else if (content.Substring(0, 4) == "LCD=") 601 { 602 //本地目录文件 603 task.LCD = content.Substring(content.IndexOf("=") + 1); 604 } 605 else if (content.Substring(0, 4) == "DIR=") 606 { 607 //远程对应目录文件 608 task.DIR = content.Substring(content.IndexOf("=") + 1); 609 task.DIR = task.DIR.Replace("\\", "/"); 610 } 611 else if (content.Substring(0, 9) == "priority=") 612 { 613 //优先级 614 task.Priority = content.Substring(content.IndexOf("=") + 1); 615 } 616 617 content = streamReader.ReadLine(); 618 curLine++; 619 } 620 } 621 } 622 623 if (!string.IsNullOrEmpty(task.HOST)) 624 { 625 foreach (var account in setting.FTPAccounts) 626 { 627 if (account.FTPName == task.HOST) 628 { 629 account.delTask = task; 630 break; 631 } 632 } 633 } 634 635 LogText("Delete File:" + "pending\\" + f.Name); 636 System.IO.File.Delete(setting.FolderToMonitor + "pending\\" + f.Name); 637 } 638 639 if (!string.IsNullOrEmpty(task.HOST)) 640 RemoveGridView(this.DataGridFiles, task); 641 else 642 { 643 task.GUID = System.Guid.Parse(fileGuid); 644 RemoveGridView(this.DataGridFiles, task); 645 } 646 647 #endregion 648 } 649 650 private void DataGridFiles_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e) 651 { 652 if (e.Button == MouseButtons.Right) 653 { 654 if (e.RowIndex >= 0) 655 { 656 //若行已是选中状态就不再进行设置 657 if (DataGridFiles.Rows[e.RowIndex].Selected == false) 658 { 659 DataGridFiles.ClearSelection(); 660 DataGridFiles.Rows[e.RowIndex].Selected = true; 661 } 662 //只选中一行时设置活动单元格 663 if (DataGridFiles.SelectedRows.Count == 1) 664 { 665 DataGridFiles.CurrentCell = DataGridFiles.Rows[e.RowIndex].Cells[e.ColumnIndex]; 666 } 667 //弹出操作菜单 668 contextMenuStrip1.Show(MousePosition.X, MousePosition.Y); 669 } 670 } 671 } 672 673 private void FormMain_FormClosing(object sender, FormClosingEventArgs e) 674 { 675 if (JobManager.GetSchedule("StartRunMonitorTask") != null) 676 { 677 JobManager.Stop(); 678 JobManager.RemoveJob("StartRunMonitorTask"); 679 } 680 System.Environment.Exit(0); 681 Application.Exit(); 682 } 683 684 private void button1_Click(object sender, EventArgs e) 685 { 686 var fa = new FormAccounts(setting); 687 fa.Owner = this; 688 fa.ShowDialog(); 689 } 690 } 691 }
1 using System; 2 using System.IO; 3 using System.Net; 4 using System.Collections.Generic; 5 using System.Linq; 6 using System.Text; 7 using System.Threading.Tasks; 8 using System.Xml; 9 using System.Xml.Linq; 10 using System.Xml.Serialization; 11 using System.Threading; 12 using System.Security.Cryptography; 13 14 namespace NuFTPCmmndv5 15 { 16 17 public class FTPAccount 18 { 19 [XmlIgnore] 20 private ProcessQueue<TaskFile> processQueue; 21 22 [XmlIgnore] 23 public Setting setting; 24 25 public FTPAccount() 26 { 27 //processQueue = new ProcessQueue<TaskFile>(UpLoadFileTest); 28 processQueue = new ProcessQueue<TaskFile>(UpLoadFile); 29 cancelTask = new TaskFile(); 30 delTask = new TaskFile(); 31 } 32 33 [XmlElement] 34 /// <summary> 35 /// FTP名 36 /// </summary> 37 public string FTPName { get; set; } 38 [XmlElement] 39 /// <summary> 40 /// FTP对应IP地址 41 /// </summary> 42 public string IP { get; set; } 43 [XmlElement] 44 /// <summary> 45 /// 端口号 46 /// </summary> 47 public int Port { get; set; } 48 [XmlElement] 49 /// <summary> 50 /// 账户名 51 /// </summary> 52 public string Username { get; set; } 53 [XmlElement] 54 /// <summary> 55 /// 密码 56 /// </summary> 57 public string Password { get; set; } 58 [XmlElement] 59 public int MaxThreadNum { get; set; } 60 61 62 [XmlIgnore] 63 public TaskFile cancelTask { get; set; } 64 [XmlIgnore] 65 public TaskFile delTask { get; set; } 66 67 68 /// <summary> 69 /// 开始处理上传队列 70 /// </summary> 71 public void Start() 72 { 73 processQueue.Start(); 74 } 75 76 /// <summary> 77 /// 添加到队列 78 /// </summary> 79 /// <param name="task"></param> 80 public void AddQueue(TaskFile task) 81 { 82 processQueue.Enqueue(task); 83 } 84 85 /// <summary> 86 /// 是否已经包含在队列 87 /// </summary> 88 /// <param name="task"></param> 89 /// <returns></returns> 90 public bool Contains(TaskFile task) 91 { 92 return processQueue.Contains(task); 93 } 94 95 96 /// <summary> 97 /// 上传进度 98 /// </summary> 99 public event Action<TaskFile, CompetedEventArgs> ProcessProgress; 100 /// <summary> 101 /// 上传完成 102 /// </summary> 103 public event Action<TaskFile, CompetedEventArgs> Completed; 104 /// <summary> 105 /// 终止上传 106 /// </summary> 107 public event Action<TaskFile, CompetedEventArgs> Aborted; 108 /// <summary> 109 /// 删除上传 110 /// </summary> 111 public event Action<TaskFile, CompetedEventArgs> Deleted; 112 /// <summary> 113 /// 上传日志 114 /// </summary> 115 public event Action<string> ProcessLog; 116 117 118 private void OnProcessProgress(TaskFile pendingValue, CompetedEventArgs args) 119 { 120 if (ProcessProgress != null) 121 { 122 try 123 { 124 ProcessProgress(pendingValue, args); 125 } 126 catch { } 127 } 128 } 129 130 private void OnCompleted(TaskFile pendingValue, CompetedEventArgs args) 131 { 132 if (Completed != null) 133 { 134 try 135 { 136 Completed(pendingValue, args); 137 } 138 catch { } 139 } 140 } 141 private void OnAborted(TaskFile pendingValue, CompetedEventArgs args) 142 { 143 if (Aborted != null) 144 { 145 try 146 { 147 Aborted(pendingValue, args); 148 } 149 catch { } 150 } 151 } 152 private void OnDeleted(TaskFile pendingValue, CompetedEventArgs args) 153 { 154 if (Deleted != null) 155 { 156 try 157 { 158 Deleted(pendingValue, args); 159 } 160 catch { } 161 } 162 } 163 private void OnProcessLog(string log) 164 { 165 if (ProcessLog != null) 166 { 167 try 168 { 169 ProcessLog(log); 170 } 171 catch { } 172 } 173 } 174 175 176 public void UpLoadFileTest(TaskFile task) 177 { 178 OnProcessLog("Thread:" + Thread.CurrentThread.ManagedThreadId); 179 OnProcessLog("Uploading: " + FTPName + "://" + IP + "/" + task.DIR); 180 OnProcessProgress(task, new CompetedEventArgs() { CompetedPrecent = 0, uploadStatus = UploadStatus.Uploading }); 181 for (int i = 1; i <= 100; i++) 182 { 183 OnProcessProgress(task, new CompetedEventArgs() { CompetedPrecent = i, uploadStatus = UploadStatus.Uploading }); 184 Thread.Sleep(GenerateRandomInteger(100,200)); 185 } 186 OnProcessLog("File Uploaded Successfully: " + FTPName + "://" + IP + "/" + task.DIR); 187 OnCompleted(task, new CompetedEventArgs() { CompetedPrecent = 0, uploadStatus = UploadStatus.Completed }); 188 //移除文件 189 File.Delete(setting.FolderToMonitor + "pending\\" + task.Filename); 190 } 191 192 public int GenerateRandomInteger(int min = 0, int max = 2147483647) 193 { 194 var randomNumberBuffer = new byte[10]; 195 new RNGCryptoServiceProvider().GetBytes(randomNumberBuffer); 196 return new Random(BitConverter.ToInt32(randomNumberBuffer, 0)).Next(min, max); 197 } 198 199 /// <summary> 200 /// 上传文件 201 /// </summary> 202 /// <param name="task"></param> 203 public void UpLoadFile(TaskFile task) 204 { 205 FileInfo _FileInfo = null; 206 FtpWebRequest _FtpWebRequest; 207 Stream ftpStream = null; 208 FileStream _FileStream = null; 209 int buffLength = 0; 210 byte[] buffer; 211 212 int contentLen = 0; 213 long uploaded = 0; 214 215 string _directory = ""; 216 string dirStr = ""; 217 FtpWebResponse response; 218 219 220 var uploadDatetime = DateTime.Now; 221 222 try 223 { 224 _FileInfo = new FileInfo(task.LCD); 225 OnProcessProgress(task, new CompetedEventArgs() { CompetedPrecent = 0, uploadStatus = UploadStatus.Uploading }); 226 227 //创建目录 228 if (task.DIR.IndexOf("/") >= 0) 229 { 230 //"/data/test/1.XML" 231 _directory = task.DIR.Substring(1, task.DIR.LastIndexOf("/") - 1); 232 OnProcessLog("Creating DIR: " + FTPName + "://" + IP + "/" + _directory); 233 dirStr = ""; 234 235 #region 236 foreach (var dir in _directory.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries)) 237 { 238 dirStr += dir + "/"; 239 try 240 { 241 _FtpWebRequest = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + IP + "/" + dirStr)); 242 _FtpWebRequest.Method = WebRequestMethods.Ftp.MakeDirectory; 243 _FtpWebRequest.UseBinary = true; 244 _FtpWebRequest.Credentials = new NetworkCredential(Username, Password); 245 246 response = (FtpWebResponse)_FtpWebRequest.GetResponse(); 247 ftpStream = response.GetResponseStream(); 248 ftpStream.Close(); 249 response.Close(); 250 } 251 catch (Exception ex) 252 { 253 if (ftpStream != null) 254 { 255 ftpStream.Close(); 256 ftpStream.Dispose(); 257 } 258 } 259 } 260 #endregion 261 } 262 263 OnProcessLog("Uploading: " + FTPName + "://" + IP + "/" + task.DIR); 264 265 _FtpWebRequest = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + IP + "/" + task.DIR)); 266 _FtpWebRequest.Credentials = new NetworkCredential(Username, Password); 267 _FtpWebRequest.KeepAlive = false; 268 _FtpWebRequest.Timeout = 20000; 269 _FtpWebRequest.Method = WebRequestMethods.Ftp.UploadFile; 270 _FtpWebRequest.UseBinary = true; 271 _FtpWebRequest.ContentLength = _FileInfo.Length; 272 273 buffLength = 1024; 274 buffer = new byte[buffLength]; 275 276 _FileStream = _FileInfo.OpenRead(); 277 ftpStream = _FtpWebRequest.GetRequestStream(); 278 contentLen = _FileStream.Read(buffer, 0, buffLength); 279 uploaded = contentLen; 280 281 var cancel = false; 282 var delete = false; 283 var timeOut = false; 284 285 while (contentLen > 0) 286 { 287 if (cancelTask.Filename == task.Filename) 288 cancel = true; 289 290 if (delTask.Filename == task.Filename) 291 delete = true; 292 293 if (DateTime.Now.Subtract(uploadDatetime).Seconds > 600) 294 timeOut = true; 295 296 if (cancel) 297 { 298 OnProcessLog("Thread Cancel: " + FTPName + "://" + IP + "/" + task.DIR); 299 throw new Exception("Cancel"); 300 cancel = false; 301 } 302 else if (delete) 303 { 304 OnProcessLog("Thread Delete: " + FTPName + "://" + IP + "/" + task.DIR); 305 throw new Exception("Delete"); 306 delete = false; 307 } 308 else if (timeOut) 309 { 310 OnProcessLog("Thread Timeout: " + FTPName + "://" + IP + "/" + task.DIR); 311 throw new Exception("Timeout"); 312 timeOut = false; 313 } 314 315 ftpStream.Write(buffer, 0, contentLen); 316 contentLen = _FileStream.Read(buffer, 0, buffLength); 317 uploaded += contentLen; 318 //上传进度 319 OnProcessProgress(task, new CompetedEventArgs() { CompetedPrecent = (int)(uploaded / _FileInfo.Length) * 100, uploadStatus = UploadStatus.Uploading }); 320 } 321 322 ftpStream.Close(); 323 ftpStream.Dispose(); 324 _FileStream.Close(); 325 _FileStream.Dispose(); 326 327 //上传完成 328 OnProcessLog("File Uploaded Successfully: " + FTPName + "://" + IP + "/" + task.DIR); 329 OnCompleted(task, new CompetedEventArgs() { CompetedPrecent = 100, uploadStatus = UploadStatus.Completed }); 330 331 //移除文件 332 File.Delete(setting.FolderToMonitor + "pending\\" + task.Filename); 333 } 334 catch (Exception ex) 335 { 336 //上传失败 337 OnProcessLog("Failed to upload: " + FTPName + "://" + IP + "/" + task.DIR); 338 339 try 340 { 341 File.Move(setting.FolderToMonitor + "pending\\" + task.Filename, setting.FolderToMonitor + "err\\" + task.Filename); 342 } 343 catch (Exception ex1) 344 { 345 OnProcessLog("Moving Files Err:" + task.HOST + ": " + task.DIR + ex1.Message); 346 try 347 { 348 File.Copy(setting.FolderToMonitor + "pending\\" + task.Filename, setting.FolderToMonitor + "err\\" + task.Filename); 349 File.Delete(setting.FolderToMonitor + "pending\\" + task.Filename); 350 } 351 catch (Exception ex2) 352 { 353 354 OnProcessLog("Uploading Err:" + task.HOST + "/" + task.DIR + ex2.Message); 355 OnProcessProgress(task, new CompetedEventArgs() { CompetedPrecent = 0, uploadStatus = UploadStatus.Failed }); 356 } 357 } 358 finally 359 { 360 OnProcessLog("Uploading Err:" + task.HOST + "/" + task.DIR + ex.Message); 361 362 if (ex.Message == "TimeOut") 363 OnProcessProgress(task, new CompetedEventArgs() { CompetedPrecent = 0, uploadStatus = UploadStatus.Timeout }); 364 else if (ex.Message == "Cancel") 365 OnProcessProgress(task, new CompetedEventArgs() { CompetedPrecent = 0, uploadStatus = UploadStatus.Cancel }); 366 else if (ex.Message == "Delete") 367 OnDeleted(task, new CompetedEventArgs() { CompetedPrecent = 0, uploadStatus = UploadStatus.Delete }); 368 else 369 OnProcessProgress(task, new CompetedEventArgs() { CompetedPrecent = 0, uploadStatus = UploadStatus.Failed }); 370 } 371 372 } 373 finally 374 { 375 if (ftpStream != null) 376 { 377 ftpStream.Close(); 378 ftpStream.Dispose(); 379 } 380 if (_FileStream != null) 381 { 382 _FileStream.Close(); 383 _FileStream.Dispose(); 384 } 385 } 386 } 387 388 389 /// <summary> 390 /// 完成事件数据 391 /// </summary> 392 public class CompetedEventArgs : EventArgs 393 { 394 public CompetedEventArgs() 395 { 396 } 397 public UploadStatus uploadStatus { get; set; } 398 /// <summary> 399 /// 完成百分率 400 /// </summary> 401 public int CompetedPrecent { get; set; } 402 /// <summary> 403 /// 异常信息 404 /// </summary> 405 public Exception InnerException { get; set; } 406 } 407 408 public enum DoWorkResult 409 { 410 /// <summary> 411 /// 继续运行，默认 412 /// </summary> 413 ContinueThread = 0, 414 /// <summary> 415 /// 终止当前线程 416 /// </summary> 417 AbortCurrentThread = 1, 418 /// <summary> 419 /// 终止全部线程 420 /// </summary> 421 AbortAllThread = 2 422 } 423 424 public enum UploadStatus 425 { 426 Completed = 0, 427 Failed = 1, 428 Timeout = 3, 429 Cancel = 4, 430 Uploading = 5, 431 Delete = 6, 432 Abort = 7, 433 } 434 } 435 }
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Collections; 6 using System.Threading; 7 8 namespace NuFTPCmmndv5 9 { 10 /// <summary> 11 /// 表示一个线程（同步）安全的通用泛型处理队列 12 /// </summary> 13 /// <typeparam name="T">ProcessQueue中包含的数据类型</typeparam> 14 public class ProcessQueue<T> : IEnumerable<T>, ICollection, IEnumerable, IDisposable 15 { 16 #region Instance Variables 17 18 private object syncRoot = new object(); 19 private Queue<T> queue; 20 private List<WorkerThread> threads = new List<WorkerThread>(); 21 private Action<T> operation; 22 bool isDisposed; 23 bool isRunning; 24 25 private int _maxThreadCount; 26 27 public int MaxThreadCount 28 { 29 get { return _maxThreadCount == 0 ? 5 : _maxThreadCount; } 30 set { value = _maxThreadCount; } 31 } 32 33 #endregion 34 35 #region Constructors 36 /// <summary> 37 /// 初始一个新的ProcessQueue 并指定具有特定容量的工作线程 38 /// </summary> 39 public ProcessQueue(Action<T> action) : this(action, 5) { } 40 /// <summary> 41 /// 初始一个新的ProcessQueue 42 /// </summary> 43 public ProcessQueue(int capacity, Action<T> action) : this(capacity, action, 5) { } 44 /// <summary> 45 /// 初始一个新的ProcessQueue 46 /// </summary> 47 public ProcessQueue(IEnumerable<T> collection, Action<T> action) : this(collection, action, 5) { } 48 49 /// <summary> 50 /// 初始一个新的ProcessQueue 51 /// </summary> 52 public ProcessQueue(Action<T> action, int threadCount) 53 { 54 queue = new Queue<T>(); 55 operation = action; 56 57 SetThreadCount(MaxThreadCount); 58 } 59 60 /// <summary> 61 /// 初始一个新的ProcessQueue 62 /// </summary> 63 /// <param name="capacity">初始容量</param> 64 public ProcessQueue(int capacity, Action<T> action, int threadCount) 65 { 66 queue = new Queue<T>(capacity); 67 operation = action; 68 69 SetThreadCount(MaxThreadCount); 70 } 71 72 /// <summary> 73 /// 初始一个新的ProcessQueue 74 /// </summary> 75 /// <param name="collection">将数据复制到ProcessQueue.</param> 76 public ProcessQueue(IEnumerable<T> collection, Action<T> action, int threadCount) 77 { 78 queue = new Queue<T>(collection); 79 operation = action; 80 81 SetThreadCount(MaxThreadCount); 82 } 83 #endregion 84 85 #region Processing Control 86 87 /// <summary> 88 /// 停止 (挂起) 89 /// </summary> 90 public void Stop() 91 { 92 lock (syncRoot) 93 { 94 foreach (WorkerThread thread in threads) 95 { 96 thread.Pause(); 97 } 98 99 isRunning = false; 100 } 101 } 102 103 /// <summary> 104 /// 开始运行 105 /// </summary> 106 public void Start() 107 { 108 lock (syncRoot) 109 { 110 //清空队列集合重新创建新的线程 111 RegenerateIfDisposed(); 112 //如果新进的项目少于当前线程集合总的线程数，则创建当前新进的项目数 113 //如果新进 的项目多余当前线程集合的线程数，则创建同样多的数程集合的线程数 114 for (int i = 0; i < Math.Min(threads.Count, queue.Count); i++) 115 { 116 //设置信号让其运行 117 threads[i].Signal(); 118 } 119 isRunning = true; 120 } 121 } 122 123 /// <summary> 124 /// 获取此ProcessQueue使用的工作线程数。 使用SetThreadCount更改此值。 125 /// </summary> 126 public int ThreadCount { get { return threads.Count; } } 127 128 /// <summary> 129 /// 设置此ProcessQueue使用的工作线程数，并根据需要分配或释放线程。 130 /// </summary> 131 /// <param name="threadCount">线程数</param> 132 public void SetThreadCount(int threadCount) 133 { 134 //至少要有一个线程 135 if (threadCount < 1) throw new ArgumentOutOfRangeException("threadCount", "The ProcessQueue class requires at least one worker thread."); 136 //同步线程 137 lock (syncRoot) 138 { 139 // 等待队列 140 int pending = queue.Count; 141 // 创建一个指定最大工作线程数的线程集合，每个线程用来处理排队的项目 142 for (int i = threads.Count; i < threadCount; i++) 143 { 144 //注意：在实例化工作线程WorkerThread 时,已经创建了一个ThreadProc 无限循环方法，改方法检测 signalEvent, abortEvent 信号 145 //在收到 abortEvent 时终止并退出，收到 Signal时 循环调用 ProcessItems() 用来处理队列里排队的项目 146 WorkerThread thread = new ProcessQueue<T>.WorkerThread(this); 147 //添加到列表 148 threads.Add(thread); 149 //线程启动 150 thread.Start(); 151 //如果队列总有待排项目时 152 if (pending > 1) 153 { 154 //设置信号,让当前工作线程运行（不等待） 155 thread.Signal(); 156 } 157 //待排队数减一 158 pending--; 159 } 160 161 //如果其它线程调用了SetThreadCount，或者多次调用了 SetThreadCount，从而导致当前实际的线程集合有可能远远大于最大线程数 162 //在这种情况下，需要移除多余的线程，从而保证当前threadCount有效 163 //移除的线程数 = 当前创建的工作线程集合总数 - 设置的最大线程数 164 int toRemove = threads.Count - threadCount; 165 if (toRemove > 0) 166 { 167 //IsSignaled 如果当前实例收到信号，则为 true；否则为 false 168 //从线程集合里取出正在等待的线程 169 foreach (WorkerThread thread in threads.Where(t => !t.IsSignaled).ToList()) 170 { 171 //设置信号使得该线程终止 172 thread.Abort(); 173 //从集合中移除改项 174 threads.Remove(thread); 175 //移除数减一 176 toRemove--; 177 } 178 //如果待移除的线程正在运行中 179 //则强制移除该线程直到移除完为止 180 while (toRemove > 0) 181 { 182 WorkerThread thread = threads[threads.Count - 1]; 183 thread.Abort(); 184 threads.Remove(thread); 185 toRemove--; 186 } 187 } 188 } 189 } 190 191 /// <summary> 192 /// 处理队列项 193 /// </summary> 194 /// <param name="item"></param> 195 private void ProcessItem(T item) 196 { 197 operation(item); 198 } 199 200 /// <summary> 201 /// 释放时重置线程 202 /// </summary> 203 private void RegenerateIfDisposed() 204 { 205 if (isDisposed) 206 { 207 int threadCount = threads.Count; 208 209 threads.Clear(); 210 211 SetThreadCount(threadCount); 212 } 213 214 isDisposed = false; 215 } 216 #endregion 217 218 /// <summary> 219 /// 从ProcessQueue清除所有未处理的项目 220 /// </summary> 221 public void Clear() 222 { 223 lock (syncRoot) 224 { 225 queue.Clear(); 226 } 227 } 228 229 /// <summary> 230 /// 尝试从ProcessQueue中检索获取下一个项目（如果存在）。 如果不存在，则将值设置为其默认值。 231 /// </summary> 232 /// <param name="value">如果不存在，则该变量将被设置为默认值.</param> 233 /// <returns>如果ProcessQueue包含一个项，则为真，如果没有则为False</returns> 234 public bool TryDequeue(out T value) 235 { 236 lock (syncRoot) 237 { 238 if (queue.Count > 0) 239 { 240 value = queue.Dequeue(); 241 242 return true; 243 } 244 else 245 { 246 value = default(T); 247 248 return false; 249 } 250 } 251 } 252 253 /// <summary> 254 /// 确定队列是否包含指定项 255 /// </summary> 256 /// <param name="item">当前项</param> 257 /// <returns>存在则 True, 不存在则 False</returns> 258 public bool Contains(T item) 259 { 260 lock (syncRoot) 261 { 262 return queue.Contains(item); 263 } 264 } 265 266 /// <summary> 267 /// 将ProcessQueue的内容复制到外部数组，而不影响ProcessQueue的内容 268 /// </summary> 269 /// <param name="array">The array to copy the items into</param> 270 /// <param name="arrayIndex">The starting index in the array</param> 271 public void CopyTo(T[] array, int arrayIndex) 272 { 273 lock (syncRoot) 274 { 275 queue.CopyTo(array, arrayIndex); 276 } 277 } 278 279 /// <summary> 280 /// 从ProcessQueue中检索下一个未处理的项目并将其删除 281 /// </summary> 282 /// <returns>The next unprocessed item in the ProcessQueue</returns> 283 public T Dequeue() 284 { 285 lock (syncRoot) 286 { 287 return queue.Dequeue(); 288 } 289 } 290 291 /// <summary> 292 /// 将一个项目添加到处理队列的末尾 293 /// </summary> 294 /// <param name="item">添加项</param> 295 public void Enqueue(T item) 296 { 297 lock (syncRoot) 298 { 299 //新进队列项 300 queue.Enqueue(item); 301 //当前处理队列正在运行时 302 if (isRunning) 303 { 304 //清空队列集合重新创建新的线程 305 RegenerateIfDisposed(); 306 //取出一个等待的线程 307 WorkerThread firstThread = threads.Where(t => !t.IsSignaled).FirstOrDefault(); 308 //存在则运行它 309 if (firstThread != null) firstThread.Signal(); 310 } 311 } 312 } 313 314 /// <summary> 315 /// 从ProcessQueue中检索下一个未处理的项目，而不删除它 316 /// </summary> 317 /// <returns>The next unprocessed item in the ProcessQueue</returns> 318 public T Peek() 319 { 320 lock (syncRoot) 321 { 322 return queue.Peek(); 323 } 324 } 325 326 /// <summary> 327 /// 返回一个包含ProcessQueue中所有未处理项目的数组 328 /// </summary> 329 /// <returns></returns> 330 public T[] ToArray() 331 { 332 lock (syncRoot) 333 { 334 return queue.ToArray(); 335 } 336 } 337 338 /// <summary> 339 /// 将ProcessQueue的容量设置为其包含的项目的实际数量，除非该数量超过当前容量的90％。 340 /// </summary> 341 public void TrimExcess() 342 { 343 lock (syncRoot) 344 { 345 queue.TrimExcess(); 346 } 347 } 348 349 #region IEnumerable<T> Members 350 351 public IEnumerator<T> GetEnumerator() 352 { 353 return queue.GetEnumerator(); 354 } 355 356 #endregion 357 358 #region IEnumerable Members 359 360 IEnumerator IEnumerable.GetEnumerator() 361 { 362 return queue.GetEnumerator(); 363 } 364 365 #endregion 366 367 #region ICollection Members 368 369 void ICollection.CopyTo(Array array, int index) 370 { 371 lock (syncRoot) 372 { 373 ((ICollection)queue).CopyTo(array, index); 374 } 375 } 376 377 public int Count 378 { 379 get 380 { 381 lock (syncRoot) 382 { 383 return queue.Count; 384 } 385 } 386 } 387 388 bool ICollection.IsSynchronized 389 { 390 get { return true; } 391 } 392 393 object ICollection.SyncRoot 394 { 395 get { return syncRoot; } 396 } 397 398 #endregion 399 400 #region IDisposable Members 401 402 public void Dispose() 403 { 404 Dispose(true); 405 } 406 407 private void Dispose(bool disposing) 408 { 409 if (disposing) 410 { 411 foreach (WorkerThread thread in threads) thread.Abort(); 412 } 413 414 isDisposed = true; 415 } 416 417 #endregion 418 419 /// <summary> 420 /// 封装.NET Thread对象并管理与控制其行为相关联的WaitHandles 421 /// </summary> 422 private class WorkerThread 423 { 424 private ManualResetEvent abortEvent; 425 private ManualResetEvent signalEvent; 426 private ProcessQueue<T> queue; 427 428 private Thread thread; 429 430 public WorkerThread(ProcessQueue<T> queue) 431 { 432 abortEvent = new ManualResetEvent(false); 433 signalEvent = new ManualResetEvent(false); 434 this.queue = queue; 435 436 thread = new Thread(ThreadProc); 437 thread.Name = "ProcessQueue Worker ID " + thread.ManagedThreadId; 438 } 439 440 /// <summary> 441 /// 运行当前线程 442 /// </summary> 443 public void Start() 444 { 445 thread.Start(); 446 } 447 448 /// <summary> 449 /// 终止当前线程 450 /// </summary> 451 public void Abort() 452 { 453 abortEvent.Set(); 454 455 thread.Join(); 456 } 457 458 /// <summary> 459 /// 清除信号WaitHandle，导致线程完成当前的迭代后暂停 460 /// </summary> 461 public void Pause() 462 { 463 signalEvent.Reset(); 464 } 465 466 /// <summary> 467 /// 设置信号WaitHandle，等待线程使其恢复运行（如果暂停） 468 /// </summary> 469 public void Signal() 470 { 471 signalEvent.Set(); 472 } 473 474 public bool IsSignaled 475 { 476 get { return signalEvent.WaitOne(0); } 477 } 478 479 /// <summary> 480 /// ThreadProc 总线程方法由一个无限循环组成，在发出中止事件时退出 481 /// </summary> 482 private void ThreadProc() 483 { 484 WaitHandle[] handles = new WaitHandle[] { signalEvent, abortEvent }; 485 486 while (true) 487 { 488 //等待指定数组中的任一元素收到信号 489 switch (WaitHandle.WaitAny(handles)) 490 { 491 case 0: // signal 492 { 493 ProcessItems(); 494 } 495 break; 496 case 1: // abort 497 { 498 return; 499 } 500 } 501 } 502 } 503 504 /// <summary> 505 /// 处理项目 506 /// </summary> 507 private void ProcessItems() 508 { 509 T item; 510 //从队列中取出一项，这是一个同步的过程 511 while (queue.TryDequeue(out item)) 512 { 513 //处理队列项 514 queue.ProcessItem(item); 515 //如果当前实例收到信号，则为 true；否则为 false。 516 //等待当前队列完成 在 调用 signalEvent.Set() 或者 abortEvent.Set() 时 517 if (!signalEvent.WaitOne(0) || abortEvent.WaitOne(0)) return; 518 } 519 //线程状态设置为非终止状态 520 signalEvent.Reset(); 521 } 522 } 523 } 524 }
Xamarin
