Upload queue for nodes

class larch.uploadqueue.UploadQueue(really_put, max_length)

Queue of objects waiting to be uploaded to the store.

We don’t upload nodes directly, because it frequently happens that a node gets modified or deleted soon after it is created. It makes sense to wait a bit so we can avoid the costly upload operation.

This class holds the nodes in a queue, and uploads them if they get pushed out of the queue.

really_put is the function to call to really upload a node. max_length is the maximum number of nodes to keep in the queue.

get(node_id)

Get a node node given its id.

list_ids()

List identifiers of all nodes in the queue.

push()

Upload all nodes in the queue.

put(node)

Put a node into the queue.

remove(node_id)

Remove a node from the queue given its id.