Redox: Use futex timeout to implement CondVar::wait_timeout #45893
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Redox: Use futex timeout to implement CondVar::wait_timeout `CondVar::wait_timeout` is implemented by supplying a `TimeSpec` pointer to `futex`. In addition, all calls to `unimplemented!()` have been removed from the Redox `sys` module. Related to rust-lang#45892
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…chton Redox: Return true from Path::is_absolute if a Path contains root or a scheme In Redox, different subsystems have different filesystem paths. However, the majority of applications using the `Path::is_absolute` function really only want to know if a path is absolute from the perspective of the scheme it is currently running in, usually `file:`. This makes both `file:/` and `/` return `true` from `Path::is_absolute`, meaning that most code does not have to check if it is running on Redox. Code that wants to know if a path contains a scheme can implement such a check on its own. Related to rust-lang#45893
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CondVar::wait_timeoutis implemented by supplying aTimeSpecpointer tofutex. In addition, all calls tounimplemented!()have been removed from the Redoxsysmodule.Related to #45892