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aijle avatar aijle commented on May 30, 2024 1

老版本的wait_util并不能解决这个问题，虽然可以指定使用单调时钟，但是内部还是转成了系统时钟的wait_for处理。这个情况在频繁校对时钟的环境下出现的比较频繁。知道有这么回事吧。

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ChunelFeng avatar ChunelFeng commented on May 30, 2024

你好，感谢您的的分享，gcc10之后修复了这个问题这事，我还真知道，哈哈。

之前是有了解过，故意改变系统时间会导致 wait的时间异常的情况。
但不是很确定什么情况下，会出现软件运行的时候，必须修改系统时间的情况。
比如，是人为修改，还是其他进程做出对应修改？

项目自身追求简单好用和可移植性，暂时不太想依赖boost中的内容。

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ChunelFeng avatar ChunelFeng commented on May 30, 2024

今天稍微看了一下，如果担心 系统时间调整，导致cond_var 等待时间异常的话，
可以考虑使用 cond_var.wait_util(now + 10ms) 的思路来解决这个问题。

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