Justin Chadwell 863d9d7351 gateway: clone ResultProxy at gateway boundaries ...

Previously, a frontend returning two identical references caused a
double-release error, as the gateway expects each ref to be unique.
However, there are scenarios where a frontend might reasonably be
expected to provide identical refs, e.g. for 2 platforms that have
binary compatibility, or for the upcoming attestations use-case.

To solve this issue, we refactor the ResultProxy implementation to
support cloning via splits.

Additionally, we then use the new splitting functionality in the gateway
and forwarder (e.g. dockerfile) frontends, and ensure that the same
ResultProxy is never returned twice in a result. This means that
identical refs over the wire are translated into the correct
shared-memory structures.

Signed-off-by: Justin Chadwell <me@jedevc.com>

2022-07-29 11:37:57 +01:00

2.7 KiB

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