Use memfd_create() to create shared memory region on Linux. #45
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These Linux-specific memory regions are significantly better than /dev/shm ones since they are automatically reclaimed when all file descriptors pointing to them are closed. Moreover, they do not have a real filesystem name, so they cannot conflicts when multiple commands with the same key are launched. For context, see this bug entry for the Fuchsia build which is experiencing fsatrace-related issues: https://bugs.fuchsia.dev/p/fuchsia/issues/detail?id=95360
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These Linux-specific memory regions are significantly better than
/dev/shm ones since they are automatically reclaimed when all
file descriptors pointing to them are closed. Moreover, they do
not have a real filesystem name, so they cannot conflicts when
multiple commands with the same key are launched.
For context, see this bug entry for the Fuchsia build which is
experiencing fsatrace-related issues:
https://bugs.fuchsia.dev/p/fuchsia/issues/detail?id=95360