文章 "自己动手开发多线程异步 MQL5 WebRequest" - 页 4

新评论
 
Mohammad Hossein Sadeghi:
文章不错，谢谢。WinINet 异步模式如何？

很抱歉，我还没有实现这种模式的计划。

 

在俄文文章的讨论中，我们可以找到对该方法的进一步研究，以及基于图表对象的替代实施方案。

Форум по трейдингу, автоматическим торговым системам и тестированию торговых стратегий

WebRequest на MQL5 своими руками"

Stanislav Korotky, 2018.11.14 14:20

我发布了另一种启动 Web 请求的方法--在图形对象的帮助下，使用 带有专家助手的模板。专家和指标都可以使用它。依赖关系与文章中的相同。新实现的文件

  • multiwebobjectworker.mqh - 包含常用类的头文件；
  • multiwebobjectworker.mq5 - 在图形对象内执行网络请求的专家；
  • multiwebindicator.mq5 - 显示网络请求启动情况的无缓冲指示器；

为每个请求创建一个对象，在其中创建一个专家助手，请求结束后删除对象。如文章所述，查询数据和结果的交换是通过资源完成的。

从日志来看，这种机制并不能提供完全的查询执行并行性，因为这些对象可能共享一个共同的事件队列。日志示例：

2018.11.14 15:11:58.492 multiwebindicator (EURUSD,H1)   129912254742671348: Starting chart object WRS1 129912254742671349
2018.11.14 15:11:58.694 multiwebindicator (EURUSD,H1)   129912254742671348: Starting chart object WRS2 129912254742671350
2018.11.14 15:11:58.819 multiwebindicator (EURUSD,H1)   129912254742671348: Starting chart object WRS3 129912254742671351
2018.11.14 15:11:58.960 multiwebobjectworker (EURUSD,H1)        129912254742671349: OnInit
2018.11.14 15:11:58.960 multiwebobjectworker (EURUSD,H1)        129912254742671349: Reading request \Indicators\multiwebindicator.ex5::WRS_0_129912254742671348
2018.11.14 15:11:58.960 multiwebobjectworker (EURUSD,H1)        129912254742671349: Got 64 bytes in request
2018.11.14 15:11:58.960 multiwebobjectworker (EURUSD,H1)        129912254742671349: GET https://google.com/ User-Agent: n/a 5000 
2018.11.14 15:11:58.975 multiwebobjectworker (EURUSD,H1)        129912254742671350: OnInit
2018.11.14 15:11:58.975 multiwebobjectworker (EURUSD,H1)        129912254742671350: Reading request \Indicators\multiwebindicator.ex5::WRS_1_129912254742671348
2018.11.14 15:11:58.975 multiwebobjectworker (EURUSD,H1)        129912254742671350: Got 60 bytes in request
2018.11.14 15:11:58.975 multiwebobjectworker (EURUSD,H1)        129912254742671350: GET https://ya.ru User-Agent: n/a 5000 
2018.11.14 15:11:59.084 multiwebobjectworker (EURUSD,H1)        129912254742671351: OnInit
2018.11.14 15:11:59.084 multiwebobjectworker (EURUSD,H1)        129912254742671351: Reading request \Indicators\multiwebindicator.ex5::WRS_2_129912254742671348
2018.11.14 15:11:59.084 multiwebobjectworker (EURUSD,H1)        129912254742671351: Got 72 bytes in request
2018.11.14 15:11:59.084 multiwebobjectworker (EURUSD,H1)        129912254742671351: GET https://www.startpage.com/ User-Agent: n/a 5000 
2018.11.14 15:11:59.162 multiwebobjectworker (EURUSD,H1)        129912254742671350: Done in 187 ms
2018.11.14 15:11:59.178 multiwebindicator (EURUSD,H1)   129912254742671348: Result code 200
2018.11.14 15:11:59.178 multiwebindicator (EURUSD,H1)   129912254742671348: Reading result \Experts\multiwebobjectworker.ex5::WRS_0_129912254742671350
2018.11.14 15:11:59.178 multiwebindicator (EURUSD,H1)   129912254742671348: Got 16592 bytes in response
2018.11.14 15:11:59.178 multiwebindicator (EURUSD,H1)   GET https://ya.ru
2018.11.14 15:11:59.178 multiwebindicator (EURUSD,H1)   Received 3734 bytes in header, 12775 bytes in document
2018.11.14 15:11:59.256 multiwebobjectworker (EURUSD,H1)        129912254742671350: OnDeinit
2018.11.14 15:11:59.272 multiwebobjectworker (EURUSD,H1)        129912254742671349: Done in 297 ms
2018.11.14 15:11:59.334 multiwebindicator (EURUSD,H1)   129912254742671348: Result code 200
2018.11.14 15:11:59.334 multiwebindicator (EURUSD,H1)   129912254742671348: Reading result \Experts\multiwebobjectworker.ex5::WRS_0_129912254742671349
2018.11.14 15:11:59.334 multiwebindicator (EURUSD,H1)   129912254742671348: Got 12688 bytes in response
2018.11.14 15:11:59.334 multiwebindicator (EURUSD,H1)   GET https://google.com/
2018.11.14 15:11:59.334 multiwebindicator (EURUSD,H1)   Received 790 bytes in header, 11813 bytes in document
2018.11.14 15:11:59.350 multiwebobjectworker (EURUSD,H1)        129912254742671349: OnDeinit
2018.11.14 15:11:59.833 multiwebobjectworker (EURUSD,H1)        129912254742671351: Done in 749 ms
2018.11.14 15:11:59.833 multiwebindicator (EURUSD,H1)   129912254742671348: Result code 200
2018.11.14 15:11:59.833 multiwebindicator (EURUSD,H1)   129912254742671348: Reading result \Experts\multiwebobjectworker.ex5::WRS_0_129912254742671351
2018.11.14 15:11:59.833 multiwebindicator (EURUSD,H1)   129912254742671348: Got 45212 bytes in response
2018.11.14 15:11:59.833 multiwebindicator (EURUSD,H1)   GET https://www.startpage.com/
2018.11.14 15:11:59.833 multiwebindicator (EURUSD,H1)   Received 822 bytes in header, 44307 bytes in document
2018.11.14 15:11:59.849 multiwebindicator (EURUSD,H1)   > > > Async WebRequest workers finished 3 tasks in 1357 ms
2018.11.14 15:11:59.880 multiwebobjectworker (EURUSD,H1)        129912254742671351: OnDeinit

我在此附上源代码。

另外，请检查 fxsaber 的 include 文件的更新版本，这些文件在依赖关系中使用 - 它们可能包含错误修复和加速。

附加的文件：
multiwebobject.zip  15 kb
 
很棒的文章。为我们打开了一扇通往无限可能的大门。谢谢。
 

这绝对是一篇令人惊叹的文章

恭喜你，谢谢你，@marketeer ！

 

我无法运行。

错误 4002。

经过分析，我发现 wyker 没有接收到 URL。而是接收了一个空值

 
Someone Else:

我没法让它工作。

错误 4002.

经过分析，我发现 wyker 无法接收 URL。而是接收到一个空值

具体使用了哪些程序/库（可以直接附上）？还需要具体日志。MT5 版本。在 MT5 的其他早期版本中尝试。

 

一切都很简单。我从网站上下载了存档，并以文中描述的诊断模式运行，只更改了网站，而不是三个，在终端的 webquest 中只指定了 google.com。

版本 5 build 2085 并不是目前最新的版本。在这个版本之前，我不记得了，它也是当时最新的版本。

来自日志

2019.07.04 14:11:31.882 multiwebclient (AUDUSD,M5) > > > > 标准 WebRequest 1 次调用在 141ms 内完成

2019.07.04 14:11:31.882 multiwebclient (GBPUSD,M5) Pool manager transfers taQuotes\Terminal\D0E8209F77C8CF37AD8BF550E51FF075\MQL5\Experts\multiwebclient.ex5::AUDUSD_PERIOD_M5_1_131797648225084732

2019.07.04 14:11:31.883 multiwebclient (AUDUSD,M5) Accepted: taQuotes\Terminal\D0E8209F77C8CF37AD8BF550E51FF075\MQL5\Experts\multiwebclient.ex5::AUDUSD_PERIOD_M5_1_131797648225084732 after 0 retries

2019.07.04 14:11:31.883 multiweb (GBPUSD,M5) 131797648225084729: Reading request taQuotes\Terminal\D0E8209F77C8CF37AD8BF550E51FF075\MQL5\Experts\multiwebclient.ex5::AUDUSD_PERIOD_M5_1_131797648225084732

2019.07.04 14:11:31.883 multiweb (GBPUSD,M5) 131797648225084729: 请求中得到 0 个字节

2019.07.04 14:11:31.883 multiweb (GBPUSD,M5) 131797648225084729: 0

2019.07.04 14:11:31.883 multiwebclient (AUDUSD,M5) WebRequest 错误代码 4002

2019.07.04 14:11:31.890 multiwebclient (GBPUSD,M5) 来自 131797648225084729 的结果代码：4002，现在空闲

2019.07.04 14:11:31.890 multiweb (GBPUSD,M5) 131797648225084729: 失败，代码为 4002


在上面的注释中替换了资源日期，情况没有改变。

原则上，您可以自己重复该操作，并检查其运行情况.....。

 
Someone Else:

一切都很简单。我从网站上下载了存档，并以文中描述的诊断模式运行，只更改了网站，而不是三个，在终端的 webquest 中只指定了 google.com。

版本 5 build 2085 目前不是最新的，我不记得以前的版本了，但当时也是最新的。

来自日志

2019.07.04 14:11:31.882 multiwebclient (AUDUSD,M5) > > > 标准 WebRequest 1 调用在 141ms 内完成

2019.07.04 14:11:31.882 multiwebclient (GBPUSD,M5) Pool manager transfers taQuotes\Terminal\D0E8209F77C8CF37AD8BF550E51FF075\MQL5\Experts\multiwebclient.ex5::AUDUSD_PERIOD_M5_1_131797648225084732

2019.07.04 14:11:31.883 multiwebclient (AUDUSD,M5) Accepted: taQuotes\Terminal\D0E8209F77C8CF37AD8BF550E51FF075\MQL5\Experts\multiwebclient.ex5::AUDUSD_PERIOD_M5_1_131797648225084732 after 0 retries

2019.07.04 14:11:31.883 multiweb (GBPUSD,M5) 131797648225084729: Reading request taQuotes\Terminal\D0E8209F77C8CF37AD8BF550E51FF075\MQL5\Experts\multiwebclient.ex5::AUDUSD_PERIOD_M5_1_131797648225084732

2019.07.04 14:11:31.883 multiweb (GBPUSD,M5) 131797648225084729: 请求中得到 0 个字节

2019.07.04 14:11:31.883 multiweb (GBPUSD,M5) 131797648225084729: 0

2019.07.04 14:11:31.883 multiwebclient (AUDUSD,M5) WebRequest 错误代码 4002

2019.07.04 14:11:31.890 multiwebclient (GBPUSD,M5) 来自 131797648225084729 的结果代码：4002，现在空闲

2019.07.04 14:11:31.890 multiweb (GBPUSD,M5) 131797648225084729: 失败，代码 4002


替换了上面注释中的资源日期，情况没有改变。

原则上，您可以自己重复并检查其工作情况.....。

无法重现。下面是在构建版 2093 上运行的日志：

2019.07.06 23:13:31.313 multiweb (EURUSD,H1)    OnInit 132069173221452536
2019.07.06 23:13:31.313 multiweb (EURUSD,H1)    WebRequest Pool Manager started in 132069173221452536
2019.07.06 23:13:32.810 multiweb (EURUSD,H1)    OnInit 132069176123428674
2019.07.06 23:13:32.810 multiweb (EURUSD,H1)    WebRequest Worker started in 132069176123428674; manager in 132069173221452536
2019.07.06 23:13:32.998 multiweb (EURUSD,H1)    OnInit 132069176125768678
2019.07.06 23:13:32.998 multiweb (EURUSD,H1)    WebRequest Worker started in 132069176125768678; manager in 132069173221452536
2019.07.06 23:13:33.169 multiweb (EURUSD,H1)    OnInit 132069176127796682
2019.07.06 23:13:33.169 multiweb (EURUSD,H1)    WebRequest Worker started in 132069176127796682; manager in 132069173221452536
2019.07.06 23:14:36.159 multiwebclient (GBPJPY,H1)      > > > Standard WebRequest 3 calls finished in 874 ms
2019.07.06 23:14:36.159 multiweb (EURUSD,H1)    Pool manager transfers \Experts\multiwebclient.ex5::GBPJPY_PERIOD_H1_1_132069176509557415
2019.07.06 23:14:36.159 multiweb (EURUSD,H1)    132069176123428674: Reading request \Experts\multiwebclient.ex5::GBPJPY_PERIOD_H1_1_132069176509557415
2019.07.06 23:14:36.159 multiwebclient (GBPJPY,H1)      Accepted: \Experts\multiwebclient.ex5::GBPJPY_PERIOD_H1_1_132069176509557415 after 0 retries
2019.07.06 23:14:36.159 multiweb (EURUSD,H1)    Pool manager transfers \Experts\multiwebclient.ex5::GBPJPY_PERIOD_H1_2_132069176509557415
2019.07.06 23:14:36.159 multiwebclient (GBPJPY,H1)      Accepted: \Experts\multiwebclient.ex5::GBPJPY_PERIOD_H1_2_132069176509557415 after 0 retries
2019.07.06 23:14:36.159 multiweb (EURUSD,H1)    132069176125768678: Reading request \Experts\multiwebclient.ex5::GBPJPY_PERIOD_H1_2_132069176509557415
2019.07.06 23:14:36.159 multiweb (EURUSD,H1)    132069176123428674: Got 64 bytes in request
2019.07.06 23:14:36.159 multiweb (EURUSD,H1)    132069176123428674: GET https://google.com/ User-Agent: n/a 5000 
2019.07.06 23:14:36.159 multiweb (EURUSD,H1)    132069176125768678: Got 60 bytes in request
2019.07.06 23:14:36.159 multiweb (EURUSD,H1)    132069176125768678: GET https://ya.ru User-Agent: n/a 5000 
2019.07.06 23:14:36.174 multiweb (EURUSD,H1)    Pool manager transfers \Experts\multiwebclient.ex5::GBPJPY_PERIOD_H1_3_132069176509557415
2019.07.06 23:14:36.174 multiwebclient (GBPJPY,H1)      Accepted: \Experts\multiwebclient.ex5::GBPJPY_PERIOD_H1_3_132069176509557415 after 0 retries
2019.07.06 23:14:36.174 multiweb (EURUSD,H1)    132069176127796682: Reading request \Experts\multiwebclient.ex5::GBPJPY_PERIOD_H1_3_132069176509557415
2019.07.06 23:14:36.174 multiweb (EURUSD,H1)    132069176127796682: Got 72 bytes in request
2019.07.06 23:14:36.174 multiweb (EURUSD,H1)    132069176127796682: GET https://www.startpage.com/ User-Agent: n/a 5000 
2019.07.06 23:14:36.283 multiwebclient (GBPJPY,H1)      132069176509557415: Result code 200
2019.07.06 23:14:36.283 multiwebclient (GBPJPY,H1)      132069176509557415: Reading result \Experts\multiweb.ex5::WRR_132069176125768678
2019.07.06 23:14:36.283 multiweb (EURUSD,H1)    132069176125768678: Done in 125 ms
2019.07.06 23:14:36.283 multiweb (EURUSD,H1)    Result code from 132069176125768678: 200, now idle
2019.07.06 23:14:36.283 multiwebclient (GBPJPY,H1)      132069176509557415: Got 17664 bytes in response
2019.07.06 23:14:36.283 multiwebclient (GBPJPY,H1)      GET https://ya.ru
2019.07.06 23:14:36.283 multiwebclient (GBPJPY,H1)      Received 4043 bytes in header, 13540 bytes in document
2019.07.06 23:14:36.439 multiwebclient (GBPJPY,H1)      132069176509557415: Result code 200
2019.07.06 23:14:36.439 multiwebclient (GBPJPY,H1)      132069176509557415: Reading result \Experts\multiweb.ex5::WRR_132069176123428674
2019.07.06 23:14:36.439 multiweb (EURUSD,H1)    Result code from 132069176123428674: 200, now idle
2019.07.06 23:14:36.439 multiweb (EURUSD,H1)    132069176123428674: Done in 281 ms
2019.07.06 23:14:36.439 multiwebclient (GBPJPY,H1)      132069176509557415: Got 12744 bytes in response
2019.07.06 23:14:36.439 multiwebclient (GBPJPY,H1)      GET https://google.com/.
2019.07.06 23:14:36.439 multiwebclient (GBPJPY,H1)      Received 736 bytes in header, 11927 bytes in document
2019.07.06 23:14:36.455 multiwebclient (GBPJPY,H1)      132069176509557415: Result code 200
2019.07.06 23:14:36.455 multiwebclient (GBPJPY,H1)      132069176509557415: Reading result \Experts\multiweb.ex5::WRR_132069176127796682
2019.07.06 23:14:36.455 multiweb (EURUSD,H1)    Result code from 132069176127796682: 200, now idle
2019.07.06 23:14:36.455 multiweb (EURUSD,H1)    132069176127796682: Done in 280 ms
2019.07.06 23:14:36.471 multiwebclient (GBPJPY,H1)      132069176509557415: Got 32520 bytes in response
2019.07.06 23:14:36.471 multiwebclient (GBPJPY,H1)      GET https://www.startpage.com/
2019.07.06 23:14:36.471 multiwebclient (GBPJPY,H1)      Received 956 bytes in header, 31482 bytes in document
2019.07.06 23:14:36.471 multiwebclient (GBPJPY,H1)      > > > Async WebRequest workers [3] finished 3 tasks in 312 ms

请查找设置或系统问题。

 

我确认，在默认设置 下，脚本 不起作用 - 我得到了相同的"WebRequest 错误代码 4002......"。


MetaTrader 5

版本：5.00 版本 2093

2019 年 7 月 2 日


===切到这里===

2019.07.23 00:47:37.182 multiwebclient (USDJPY,H1) Accepted: aQuotes\Terminal\D0E8209F77C8CF37AD8BF550E51FF075\MQL5\Experts\multiwebclient.ex5::USDJPY_PERIOD_H1_2_128968169154443359 after 0 retries

2019.07.23 00:47:37.182 multiwebclient (USDJPY,H1) WebRequest 错误代码 4002

===在此切入===


Торговые советники и собственные индикаторы - Алгоритмический трейдинг, торговые роботы - MetaTrader 5
Торговые советники и собственные индикаторы - Алгоритмический трейдинг, торговые роботы - MetaTrader 5
  • www.metatrader5.com
Среди программ для автоматического трейдинга можно выделить две большие категории: торговые роботы и индикаторы. Первые предназначены для совершения торговых операций на рынках, а вторые — для анализа котировок и выявления закономерностей в их изменении. При этом индикаторы могут использоваться непосредственно в роботах, образуя полноценную...
 
Igor K:

我确认，在默认设置 下，该脚本 不起作用 - 我得到了相同的"WebRequest 错误代码 4002"....


MetaTrader 5

版本：5.00 版本 2093

2019 年 7 月 02 日


===在此剪切===

2019.07.23 00:47:37.182 multiwebclient (USDJPY,H1) Accepted: aQuotes\Terminal\D0E8209F77C8CF37AD8BF550E51FF075\MQL5\Experts\multiwebclient.ex5::USDJPY_PERIOD_H1_2_128968169154443359 after 0 retries

2019.07.23 00:47:37.182 multiwebclient (USDJPY,H1) WebRequest 错误代码 4002

===在此剪切===


请提供更多详细信息--操作系统版本、杀毒软件等。我的操作系统是 Win 7，MT5 版本 2093 如上所示运行正常。

基本上，问题是针对 MQ 的，因为错误与 "内部调用 "有关，但我不相信帮助 - 支持已关闭。

文章的源代码是开源的，因此请尝试在出现错误的机器上解决问题。

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