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ndb: switch to nostrdb notes

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This is a refactor of the codebase to use a more memory-efficient
representation of notes. It should also be much faster at decoding since
we're using a custom C json parser now.

Changelog-Changed: Improved memory usage and performance when processing events
This commit is contained in:
William Casarin
2023-07-26 08:46:44 -07:00
parent 55bbe8f855
commit cebd1f48ca
110 changed files with 2153 additions and 1799 deletions
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30
damus/Models/UserSearchCache.swift
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@@ -61,31 +61,35 @@ class UserSearchCache {
return
}
var petnames: [String: String] = [:]
// Gets all petnames from our new contacts list.
newEvent.tags.forEach { tag in
guard tag.count >= 4 && tag[0] == "p" else {
var petnames: [Pubkey: String] = [:]
for tag in newEvent.tags {
guard tag.count > 3,
let chr = tag[0].single_char, chr == "p",
let id = tag[1].id()
else {
return
}
let pubkey = tag[1]
let petname = tag[3]
let pubkey = Pubkey(id)
petnames[pubkey] = petname
petnames[pubkey] = tag[3].string()
}
// Compute the diff with the old contacts list, if it exists,
// mark the ones that are the same to not be removed from the user search cache,
// and remove the old ones that are different from the user search cache.
if let oldEvent, oldEvent.known_kind == .contacts && oldEvent.pubkey == id {
oldEvent.tags.forEach { tag in
guard tag.count >= 4 && tag[0] == "p" else {
if let oldEvent, oldEvent.known_kind == .contacts, oldEvent.pubkey == id {
for tag in oldEvent.tags {
guard tag.count >= 4,
tag[0].matches_char("p"),
let id = tag[1].id()
else {
return
}
let pubkey = tag[1]
let oldPetname = tag[3]
let pubkey = Pubkey(id)
let oldPetname = tag[3].string()
if let newPetname = petnames[pubkey] {
if newPetname.caseInsensitiveCompare(oldPetname) == .orderedSame {