Next, the reader thread needs to ensure (and this is the second check you perform) that it does not wait on the condition variable any more than the specified timeout period.
接下来，读线程需要确保(这是第二个检查)它等待条件变量的时间不超过指定的超时时间。
After each image is saved, a check for a minimum number of images to process will trigger a timeout-enabled call to the delayRotate function.
在保存所有图像之后，检查需要处理的图像的最少数量将触发对delayrotate函数的调用，该调用支持超时。
By default, the Aged timeout property is set to 0, which means that the maintenance thread will never perform this check.
在缺省情况下，过时超时属性设置为0，这意味着维护线程从不执行此检查。
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