This commit adds changes so that the main process almost immediately
acquires a lock on the data file when runtime is dropped. This is just
an added precaution to try and ensure that no other process does
something silly with the data file.
The descriptor is cloned for this using `FileLock::try_clone`
This commit defines two traits: `Con` and `ConOps`. Implementors of
`ConOps` get a free implementation for `Con`. `Con` is the ultimate
object that can be used in place of the current SSL/non-SSL connection
objects. If you look at the implementations of the current connection
objects, they have a lot of repetition as they do almost the same thing
except for the fact that they have a different underlying stream.
This is exactly what we're trying to eliminate. We will also define a
generic connection handler object to reduce redundancy.
This commit now checks if the second value passed to MKSNAP points
to any parent/root directory before performing any action.
Signed-off-by: Sayan Nandan <nandansayan@outlook.com>
This commit provides an implementation which allows multiple 'named'
namespaces to be serialized and deserialized.
No information about the data needs to be known for deserialization;
To facilitate this, a partition map is implemented which is stored as a
separate file. For now, the data file is called `snapstore.bin` and the
partition metadata file is called partmap.
The partition map (`PartMap`) contains a vector of `Partition` objects.
This object stores 'markers' (`len`) which are ideally byte positions
or offsets that demarcate the locations of the individual namespaces.
Signed-off-by: Sayan Nandan <nandansayan@outlook.com>