Meta.channel

Channels

class lxu.meta.channel.Channels

Base class for defining Channels. The client will subclass this base class, filling in the methods that they require. It’s then instantiated as a metaclass to be used by servers.

init_chan(desc)

This is passed an AttributeDesc object which is used to init the channels.

Meta

class lxu.meta.channel.Meta

The base class for metaclass nodes defines their core features. They have a type given by one of the pre-defined type strings, they have an optional name, and an optional guid. The are arranged into a tree, and the tree can be searched for matching meta nodes.

add(sub)

Add another meta object as a child of this one.

alloc()

Return the signature for this metaclass. Depends on type.

dump(prefix)

Output the contents of the meta node tree with indenting.

find_any(type, guid, miss)

Find a node with matching type/guid, searching first inside this node but searching higher up the tree until somthing matches.

find_sub(type, guid)

Find first node with a matching type/guid under this node.

flatten()

Return this meta and all sub-metas in a list.

get_ifcs(guid)

Get the list of interfaces matching the given guid under this node. The list is returned as tuples: ((class, meta), …)

init_ifcs(guid)

Initialize the _sub_ifcs attribute as a list of interfaces. If no guid is given we use the metaclass guid itself.

pre_init()

Do any self-modification or other steps before initialization. Return true as long as there is more to do.

test(type, guid)

Test this meta node against a type and guid and return true for match. All testing allows for type or guid to be None for wildcard.

Types

Meta_Channels

class lxu.meta.channel.Meta_Channels

This is the metaclass for Channels.

add(sub)

Add another meta object as a child of this one.

alloc()

dump(prefix)

Output the contents of the meta node tree with indenting.

find_any(type, guid, miss)

Find a node with matching type/guid, searching first inside this node but searching higher up the tree until somthing matches.

find_sub(type, guid)

Find first node with a matching type/guid under this node.

flatten()

Return this meta and all sub-metas in a list.

get_ifcs(guid)

Get the list of interfaces matching the given guid under this node. The list is returned as tuples: ((class, meta), …)

init_ifcs(guid)

Initialize the _sub_ifcs attribute as a list of interfaces. If no guid is given we use the metaclass guid itself.

pre_init()

Do any self-modification or other steps before initialization. Return true as long as there is more to do.

test(type, guid)

Test this meta node against a type and guid and return true for match. All testing allows for type or guid to be None for wildcard.

Types