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This works around the page size limit at the cost of negligible performance regressions.
Closes #34.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is subtle to use correctly. It also does not make sense as part of the container API.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This does not make sense as part of the public API, so make it internal.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is done by both systemd sd-device and AOSP ueventd to improve robustness. Rosa OS will still handle ENOBUFS via coldboot but a big buffer should mitigate this as well.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This removes netpoll boilerplate for the most common use case.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These are generally useful, and none of them are container-specific. Syscalls subtle to use and requiring container-specific setup remains in container.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is adapted from the container netlink implementation and is much more reusable.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change removes inconsistencies collected over time in this package.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This enables loopback networking when owning the net namespace.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Due to the special nature of the init process, direct use of wait outside the wait4 loop is racy. This change copies the wstatus from wait4 loop state instead.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is useful for daemons internal to the container. The only current use case is pipewire-pulse.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This enables its use in hst for #15.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This package is quite useful. This change allows it to be imported without importing container.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This frees all container instances of side effects.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This makes it possible to optionally omit the identifying verbose message, for when the Op implementation can provide a much more useful message in its case, using information not yet available to the String method.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This helps indicate the exact origin and nature of the error. This eliminates generic WrapErr from container.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is the first step to deprecating the generalised error wrapping error message pattern.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows instrumentation of calls from goroutine without relying on finalizers.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Scheduler nondeterminism cannot be accounted for, so do this instead.
There should not be any performance penalty as these calls are optimised out for direct.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The file is very difficult to stub. Pass fd instead as it is the value that is actually useful.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This degrades test performance if not stubbed out.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows path and mount functions to be instrumented.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows tests to stub all kernel behaviour, enabling measurement of all function call arguments and error injection.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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