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Continuing to chip away at moving ssb.js to C. This time, following.

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git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4096 ed5197a5-7fde-0310-b194-c3ffbd925b24
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Cory McWilliams
2022-12-31 21:44:48 +00:00
parent a9f6593979
commit 120ed36552
4 changed files with 167 additions and 50 deletions
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52
core/ssb.js
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@ -5,54 +5,6 @@ let g_attendants = {};
const k_use_create_history_stream = false;
const k_blobs_concurrent_target = 8;
function following(db, id) {
var o = db.get(id + ":following");
const k_version = 5;
var f = o ? JSON.parse(o) : o;
if (!f || f.version != k_version) {
f = {users: [], sequence: 0, version: k_version};
}
f.users = new Set(f.users);
ssb.sqlStream(
"SELECT "+
" sequence, "+
" json_extract(content, '$.contact') AS contact, "+
" json_extract(content, '$.following') AS following "+
"FROM messages "+
"WHERE "+
" author = ?1 AND "+
" sequence > ?2 AND "+
" json_extract(content, '$.type') = 'contact' "+
"UNION SELECT MAX(sequence) AS sequence, NULL, NULL FROM messages WHERE author = ?1 "+
"ORDER BY sequence",
[id, f.sequence],
function(row) {
if (row.following) {
f.users.add(row.contact);
} else {
f.users.delete(row.contact);
}
f.sequence = row.sequence;
});
f.users = Array.from(f.users).sort();
var j = JSON.stringify(f);
if (o != j) {
db.set(id + ":following", j);
}
return f.users;
}
function followingDeep(db, seed_ids, depth) {
if (depth <= 0) {
return seed_ids;
}
var f = seed_ids.map(x => following(db, x));
var ids = [].concat(...f);
var x = followingDeep(db, [...new Set(ids)].sort(), depth - 1);
x = [...new Set([].concat(...x, ...seed_ids))].sort();
return x;
}
function get_latest_sequence_for_author(author) {
var sequence = 0;
ssb.sqlStream(
@ -140,7 +92,7 @@ ssb.addEventListener('connections', function on_connections_changed(change, conn
if (k_use_create_history_stream) {
connection.send_json({'name': ['createHistoryStream'], 'type': 'source', 'args': [{'id': connection.id, 'seq': sequence, 'live': true, 'keys': false}]}, storeMessage);
var identities = ssb.getAllIdentities();
followingDeep(g_database, identities, 2).then(function(ids) {
ssb.followingDeep(identities, 2).then(function(ids) {
for (let id of ids) {
if (identities.indexOf(id) != -1) {
continue;
@ -226,7 +178,7 @@ function ebtReplicateSendClock(request, have) {
var identities = ssb.getAllIdentities();
var message = {};
var last_sent = request.connection.sent_clock || {};
var ids = followingDeep(g_database, identities, 2).concat([request.connection.id]);
var ids = ssb.followingDeep(identities, 2).concat([request.connection.id]);
if (!Object.keys(last_sent).length) {
for (let id of ids) {
message[id] = get_latest_sequence_for_author(id);