This is a temporary fix, and first part of the gall-request-queue-fix
release in two stages. This gives a publisher ship the ability to
understand a %cork and handle it properly, but no subscriber will
be sending %corks at this stage when leaving a subscription.
We still add a nonce to all subscription wires but it doesn't
increment it when resubscribing, allowing flows to be reused.
Tested locally with toy pub/sub agents and Group join/leaving
Previously, the initial Azimuth snapshot was stored in Clay and shipped
in the pill. This causes several problems:
- It bloats the pill
- Updating the snapshot added large blobs to Clay's state. Even now
that tombstoning is possible, you don't want to have to do that
regularly.
- As a result, the snapshot was never updated.
- Even if you did tombstone those files, it could only be updated as
often as the pill
- And those updates would be sent over the network to people who didn't
need them
This moves the snapshot out of the pill and refactors Azimuth's
initialization process. On boot, when app/azimuth starts up, it first
downloads a snapshot from bootstrap.urbit.org and uses that to
initialize its state. As before, updates after this initial snapshot
come from an Ethereum node directly and are verified locally.
Relevant commands are:
- `-azimuth-snap-state %filename` creates a snapshot file
- `-azimuth-load "url"` downloads and inits from a snapshot, with url
defaulting to https://bootstrap.urbit.org/mainnet.azimuth-snapshot
- `:azimuth &azimuth-poke-data %load snap-state` takes a snap-state any
way you have it
Note the snapshot is downloaded from the same place as the pill, so this
doesn't introduce additional trust beyond what was already required.
When remote scry is released, we should consider allowing downloading
the snapshot in that way.
Because the publisher will send the cork plea back to the subscriber on
the next bone, we are not able to know the bone for the original cork.
To handle it, we add the cork bone to the plea path
still wip: it keeps resending the cork plea faster than its ~h1 timer
Removes the !: at the top of gall, so that it no longer gets included in traces about agent builds or crashes.
We also refine intentional crashes with ~_s, so that we still see a crash reason even if we don't get a full trace.
Lastly, flops the trace for +on-load crashes, which were getting printed bottom-first.
Stale lanes may cause forwarding loops. Imagine the following:
1) Planet A is live. Galaxy B, its indirect sponsor, learns of its route.
2) A goes offline. Another ship, C, is started in its place, at the same route.
3) B receives a packet for A, forwards it to the known route.
4) C received the packet, forwards it to B.
5) Repeat from 3.
Here, we update the forward lane(s) scry used by the runtime to not produce a
peer's lane if they haven't communicated with us in the last hour. Everyone's
supposed to ping their sponsorship chain every 30 seconds. If those aren't
going through, you shouldn't expect to be reachable anyway.
We may or may not want to update +send-blob to match.
Previously, if the pointer for a syntax error pointed to the end of the file
(and the file ended in a newline) the code snippet rendering would try to
display a line _beyond_ the end of the file, causing a crash.
Here, we detect that case, and display `<<end of file>>` instead.
This accounts for a possible race condition where ames expects a
response, but regresses into the larval state. Upon receiving the
$sign on +take, we would remain stuck as a larva. Now we check
that we have enough information to re-evolve and then start a
/larval timer to begin draining the queue.
Previously we stored the nonce in $boat, which changed the $bowl of each
agent. This compiles and all agents reload, but more testing is needed.
It also renames inbound/outbound watches to $bitt/$boat.
Previously we were dropping events that used old
wires that lacked a rift in them. This seems a
bad behavior because we don't want to destroy a
flow that has not been processed by both ends.
Note: pending a fix to test-old-ames-wire
This converts the blob store from having deltas, directs, and
tombstones, to just having direct pages. This simplifies a lot of code,
since we don't have to constantly ensure that deltas always have their
parent available.
This removes the hardcoded text diff logic from clay, which was
previously required for bootstrapping.
Over the wire, we handle both old and new requests and responses
transparently, so communication is normal in both directions across
ships which do or do not have this change.
We had trie operations independently implemented in +de in arvo,
+an:cloy in zuse, +zu in clay, lib/trie, and app/spider. This unifies
them all into +de in arvo, aggregating the used operations.
This fixes a space leak where the entire ford/clay core would be
included in the ford cache. Heavily reduces memory usage by clay,
reducing total usage from 100-200MB to around 10MB.
Instead of reporting a single memory size for built files, marks and
conversions, we now report memory size per path, mark name and mark
pair, respectively.
instead make it a rolling 128-bit integer. 128 bits is the same size as
the +sham space, so is one natural choice for "big enough to never have
to think about this." 64, 32, 16, even 8 bits would probably be fine.
Threads should eventually take and produce $cage instead of $vase. Since
%khan is likely to be used by third parties, we write to the eventual
intended API. We ignore the mark on the input $cage (it is safe to
always specify %noun), and we always use %noun as the output mark.
%fyrd now makes more sense. It was previously discarding the type of the
output %arow and re-encoding the raw noun as a vase of the output mark;
it is now performing mark conversion from the mark of the output $cage
to the originally requested output mark.
tid was accidentally getting set to the name of the output mark. As we
don't currently support cancelling threads, there is no reason to
maintain the originally-intended correspondence between tid and conn
request-id.
Take the opportunity to clean up indentation somewhat.
Also strips out `$` from khan top-level comment.
There are arguments for keeping $crag in lull, and on the other side for
moving $cast to arvo. This seemed like the most reasonable approach.
%fyrd is now implemented in terms of %fard, and likewise %avow in terms
of %arow. State is tracked via wire rather than in a global map.
Unit tests adjusted to match.
These take and produce vases, and assign random tids (rather than
deducing them from the input duct.)
Since %fard does not require mark conversion, we make the mark/beak on
$thread-state optional (and use this to decide whether to send %avow or
%arow.) Provide a state adapter since it's possible that people have
been experimenting with this vane.
This makes the negative case of %avow/%arow kind of clunky, since there
is no content difference, but the following does not seem possible
within the Hoon type system:
=/ gif
?~ p.tad
%arow %avow
[hen %give gif %| p.cag tang]~
- use desk parameter instead of %base everywhere
- formatting clean up
- make |story-remove take a case instead of an aeon
- make desk param optional for story-set and story-log
- only store metadata in the persistent map. just enough to support
(eventual) thread cancellation and output mark lookup.
- try to delete thread state at other failure points not covered by
%kick.
- reflect back the passed output mark rather than form.dais. not sure
about this one yet.
Resolves a good number of conflicts. Most notably, re-propagates removal
of gall's %onto, confirms new /app/herm behavior, coerces hood/drum
state adapters back into place, and updates webterm to use the latest
api.
This change greatly improves the ergonomics of working with channel JSON
in statically typed languages, as the polymorphism is moved out of the
actual diff and into the event framing.
+wake had accumulated several layers of abstractions which were later
rendered unnecessary. This removes those abstractions and should have
no semantic effect.
This adds support for tombstoned files to clay. It does not include any
way to actually tombstone them; that is left for later.
This allows tombstoning at the level of a file. Precisely, this expands
+blob:clay by adding a %dead case:
+$ blob :: fs blob
$% [%delta p=lobe q=[p=mark q=lobe] r=page] :: delta on q
[%direct p=lobe q=page] :: immediate
[%dead p=lobe ~] :: tombstone
== ::
Thus, we maintain the invariant that every lobe corresponds to a blob,
but now a blob may be an explicit tombstone.
Details:
- This has not been tested at all, except that it compiles and boots.
- This does not have a state adapter from master. The only state change
is the definition of +cach.
- Additionally, out-of-date ships may unexpectedly receive a %dead blob
from a foreign clay which would interfere with their ability to download
that desk. No code changes necessary, but sponsors should avoid
tombstoning files in %base for a while so their children can get the
update.
- A merge will only fail if the tombstoned file conflicts with another
change. Note that as written, merging from a past desk *can* bring a
tombstoned file to the head of a desk. Possibly this shouldn't be
allowed.
This also includes a couple refactors that were made possible by ford
fusion (since everything is synchronous now) but never got done. In
both cases we get to remove a monad, which simplifies the code
considerably.
- refactor +merge's error handling to use !!/mule instead of threading
through errors
- refactor all +read-* functions and related parts of +try-fill-sub to
eagerly convert lobes to cages.
We also add support reading %a/b/c/e/f/r/x from past and foreign desks,
when possible. Apologies that all of these are in one commit, it was
all a single chunk of work.
This is a draft until we have a way to tombstone. I suspect we'll want
to have a mechanism of keeping track of gc roots and trace to remove,
but this PR doesn't suggest any particular strategy.
Jael needs to be reconfigured to listen to the new aagent for azimuth
events, and the old app needs to be shut down. We do this in
/app/azimuth's +on-init.
Additionally, we make sure that jael doesn't crash when it (as expected)
loses its subscription to the old agent.
When you loaded an app with an error, then fixed the error, it would
create the main gall %mult subscription at a time in the past. Then,
clay would never fill the subscription since it couldn't get the old %a
entries for the apps.
This fixes the issue in two ways: first, don't subscribe in the past.
Second, if clay can't get the old versions, just fire the subscription
anyway.
