Commit Graph

872 Commits

Author SHA1 Message Date
Olaoluwa Osuntokun
07bc7bbd42
channeldb: sent internal db pointer in FetchOpenChannels
This commit fixes a bug which would potentially cause a panic if a
channel returned from FetchOpenChannels attempted to access the
internal pointer to the database.

To fix this bug, the pointer is now properly set once the channel has
been loaded from the database.
2016-06-22 22:01:32 -07:00
Olaoluwa Osuntokun
210c32d890
channeldb: add doc strings to finalize funcs/structs 2016-06-22 17:15:52 -07:00
Olaoluwa Osuntokun
f1f27b2046
channeldb: add ability to close active channels
This commit introduces the concept of “closing” an already active
channel. Closing a channel causes all the channel state to be purged
from the database, and also triggers the creation of a small “summary”
kept concerning details of the previously open channel.

This commit also updates the previous test case(s), and includes the
close channel bucket in the database deletion in the .Wipe() method.
2016-06-22 16:16:43 -07:00
Olaoluwa Osuntokun
c5f97a17d5
channeldb: introduce FetchOpenChannels
This commit introduces/re-writes a method FetchOpenChannels for
channeldb, which returns all currently active/open channels for a
particular peerID.
2016-06-21 13:12:47 -07:00
Olaoluwa Osuntokun
c2818a549b
channeldb: modify schema to multiple-channels-per-peer
This commit overhauls the current schema for storing active channels in
order to support tracking+updating multiple open channels for a
particular peer.

Channels are now uniquely identified by an output (txid:index) rather
than an arbitrary hash value. As a result, the funding transaction is
no longer stored, as only the txin is required to lookup the original
transaction, and to sign for new commitment states.

A new bucket, nested within the bucket for a node’s Lightning ID has
been created. This new bucket acts as an index to the active channels
for a particular peer by storing all the active channel points as keys
within the bucket. This bucket can then be scanned in a linear fashion,
or queried randomly in order to retrieve channel information.

The split between top-level, and channel-level keys remains the same.
The primary modification comes in using the channel ID (the funding
outpoint) as the key suffix for all top-level and channel-level keys.
2016-06-21 13:12:43 -07:00
Olaoluwa Osuntokun
fcff17c336
multi: change all imports to roasbeef's forks
This commit will allow the general public to build lnd without jumping
through hoops setting up their local git branches nicely with all of
our forks.
2016-05-15 17:22:37 +03:00
Olaoluwa Osuntokun
20f5ff56eb channeldb: fix imports 2016-05-03 20:02:46 -07:00
Tadge Dryja
71231c477c make imports lowercase 2016-04-30 20:24:57 -07:00
Olaoluwa Osuntokun
fa1e7a332f channeldb: remove hardcoded netparams 2016-04-24 12:35:52 -07:00
Olaoluwa Osuntokun
3f5664b46d channeldb: unify Create/Open into simply Open
Open will now create, and initialize the db if it does not yet exist.
2016-03-24 14:31:46 -07:00
Olaoluwa Osuntokun
afb45ffe8b channeldb: temporary hack...
Need to add a channeldb.NewOpenChannel() method to once again allow a
channel’s db pointer to be private.
2016-03-24 00:00:22 -07:00
Olaoluwa Osuntokun
87603e780f channeldb: re-design OpenChannel schema, update tests
The state of OpenChannel on disk has now been partitioned into several
buckets+keys within the db. At the top level, a set of prefixed keys
stored common data updated frequently (with every channel update).
These fields are stored at the top level in order to facilities prefix
scans, and to avoid read/write amplification due to
serialization/deserialization with each read/write.

Within the active channel bucket, a nested bucket keyed on the node’s
ID stores the remainder of the channel.

Additionally OpenChannel now uses elkrem rather than shachain, delivery
scripts instead of addresses, stores the total net fees, and splits the
csv delay into the remote vs local node’s.

Several TODO’s have been left lingering, to be visited in the near
future.
2016-03-23 22:39:52 -07:00
Olaoluwa Osuntokun
631e76519e channeldb: switch to Open/Create methods rather than New
Commit includes basic tests for Open/Create. Additionally, rather than
relying on btcwallet’s addmgr for encryption/decryption, this package
now exposes a simple crypto system interface.
2016-03-23 22:11:57 -07:00
Olaoluwa Osuntokun
6155fd5d01 channeldb: move node ID/addr funds to node.go 2016-03-22 18:46:54 -07:00
Olaoluwa Osuntokun
3e3948a04f channeldb: switch to bolt.DB instead of walletdb.DB
This decouples channeldb from btcwallet, and also allows us access to
bolt’s Batch() call.
2016-03-22 18:46:30 -07:00
Olaoluwa Osuntokun
8feb86c4aa multi: create lnd's logging infrastructure 2016-03-22 18:43:10 -07:00
Tadge Dryja
2815afebb7 update imports to github 2016-01-16 10:45:54 -08:00
Olaoluwa Osuntokun
c4af4017da channeldb: revocation hashes are 20 bytes
* Although, why not 32?
2016-01-14 23:56:08 -08:00
Tadge Dryja
8504362c5e trying to store id pkh. Doesn't work; wallet creation never completes 2016-01-14 23:56:08 -08:00
Tadge Dryja
e70c6aa367 trying to store private identity key. Doesn't work. 2016-01-14 23:56:08 -08:00
Olaoluwa Osuntokun
1b9d34f614 channeldb: don't store commit sig separately, expected to be within the txin of the commit tx 2015-12-29 00:00:29 -06:00
Olaoluwa Osuntokun
4fdb2763e6 channeldb: create new channeldb package, update lnwallet to use new API
* Initial draft of brain dump of chandler. Nothing yet set in stone.
* Will most likely move the storage of all structs to a more “column”
oriented approach. Such that, small updates like incrementing the total
satoshi sent don’t result in the entire struct being serialized and
written.
* Some skeleton structs for other possible data we might want to store
are also included.
* Seem valuable to record as much data as possible for record keeping,
visualization, debugging, etc. Will need to set up a time+space+dirty
cache to ensure performance isn’t impacted too much.
2015-12-26 12:35:15 -06:00