Robin Burchell f2c0e55070 Userspace: Deal with select() returning EINTR on a signal interruption ...

Add a trivial CSafeSyscall template that calls a callback until it stops
returning EINTR, and use it everywhere we use select() now.

Thanks to Andreas for the suggestion of using a template parameter for
the syscall function to invoke.

2019-07-21 14:27:14 +02:00

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