Add nostr-gossip-memory crate

Signed-off-by: Yuki Kishimoto <[email protected]>

Author: yukibtc

.github/workflows/ci.yml

@@ -36,6 +36,7 @@ jobs:
           - nostr-http-file-storage
           - nostr-database
           - nostr-gossip
+          - nostr-gossip-memory
           - nostr-lmdb
           - nostr-indexeddb --target wasm32-unknown-unknown
           - nostr-ndb

Cargo.lock

@@ -10,6 +10,7 @@ members = [
 
     # Gossip
     "gossip/nostr-gossip",
+    "gossip/nostr-gossip-memory",
 
     # Remote File Storage implementations
     "rfs/nostr-blossom",
@@ -42,7 +43,8 @@ negentropy = { version = "0.5", default-features = false }
 nostr = { version = "0.43", path = "./crates/nostr", default-features = false }
 nostr-connect = { version = "0.43", path = "./signer/nostr-connect", default-features = false }
 nostr-database = { version = "0.43", path = "./database/nostr-database", default-features = false }
-nostr-gossip = { version = "0.43.0", path = "./gossip/nostr-gossip", default-features = false }
+nostr-gossip = { version = "0.43", path = "./gossip/nostr-gossip", default-features = false }
+nostr-gossip-memory = { version = "0.43", path = "./gossip/nostr-gossip-memory", default-features = false }
 nostr-lmdb = { version = "0.43", path = "./database/nostr-lmdb", default-features = false }
 nostr-ndb = { version = "0.43", path = "./database/nostr-ndb", default-features = false }
 nostr-relay-builder = { version = "0.43", path = "./crates/nostr-relay-builder", default-features = false }

Cargo.toml

@@ -14,6 +14,7 @@ The project is split up into several crates:
     - [**nostr-ndb**](./database/nostr-ndb): [nostrdb](https://github.com/damus-io/nostrdb) storage backend
     - [**nostr-indexeddb**](./database/nostr-indexeddb): IndexedDB storage backend
 - [**nostr-gossip**](./gossip/nostr-gossip): Gossip traits
+    - [**nostr-gossip-memory**](./gossip/nostr-gossip-memory): In-memory gossip database
 - Remote File Storage implementations:
     - [**nostr-blossom**](./rfs/nostr-blossom): A library for interacting with the Blossom protocol
     - [**nostr-http-file-storage**](./rfs/nostr-http-file-storage): HTTP File Storage client (NIP-96)

README.md

@@ -35,6 +35,7 @@ buildargs=(
     "-p nostr-http-file-storage"
     "-p nostr-database"
     "-p nostr-gossip"
+    "-p nostr-gossip-memory"
     "-p nostr-lmdb"
     "-p nostr-indexeddb --target wasm32-unknown-unknown"
     "-p nostr-ndb"

contrib/scripts/check-crates.sh

@@ -0,0 +1,28 @@
+# Changelog
+
+<!-- All notable changes to this project will be documented in this file. -->
+
+<!-- The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), -->
+<!-- and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). -->
+
+<!-- Template
+
+## Unreleased
+
+### Breaking changes
+
+### Changed
+
+### Added
+
+### Fixed
+
+### Removed
+
+### Deprecated
+
+-->
+
+## Unreleased
+
+First release.

gossip/nostr-gossip-memory/CHANGELOG.md

@@ -0,0 +1,21 @@
+[package]
+name = "nostr-gossip-memory"
+version = "0.43.0"
+edition = "2021"
+description = "In-memory gossip database"
+authors.workspace = true
+homepage.workspace = true
+repository.workspace = true
+license.workspace = true
+readme = "README.md"
+rust-version.workspace = true
+keywords = ["nostr", "gossip", "in-memory"]
+
+[dependencies]
+lru.workspace = true
+nostr = { workspace = true, features = ["std"] }
+nostr-gossip.workspace = true
+tokio = { workspace = true, features = ["sync"] }
+
+[dev-dependencies]
+tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }

gossip/nostr-gossip-memory/Cargo.toml

@@ -0,0 +1,17 @@
+# Gossip in-memory storage
+
+## Changelog
+
+All notable changes to this library are documented in the [CHANGELOG.md](CHANGELOG.md).
+
+## State
+
+**This library is in an ALPHA state**, things that are implemented generally work but the API will change in breaking ways.
+
+## Donations
+
+`rust-nostr` is free and open-source. This means we do not earn any revenue by selling it. Instead, we rely on your financial support. If you actively use any of the `rust-nostr` libs/software/services, then please [donate](https://rust-nostr.org/donate).
+
+## License
+
+This project is distributed under the MIT software license - see the [LICENSE](../../LICENSE) file for details

gossip/nostr-gossip-memory/README.md

@@ -0,0 +1,7 @@
+// Copyright (c) 2022-2023 Yuki Kishimoto
+// Copyright (c) 2023-2025 Rust Nostr Developers
+// Distributed under the MIT software license
+
+use std::time::Duration;
+
+pub(super) const PUBKEY_METADATA_OUTDATED_AFTER: Duration = Duration::from_secs(60 * 60); // 60 min

gossip/nostr-gossip-memory/src/constant.rs

@@ -0,0 +1,44 @@
+#[derive(Clone, Copy, Default)]
+pub(crate) struct Flags(u16);
+
+impl Flags {
+    //pub(crate) const NONE: Self = Self(0); // 0
+
+    pub(crate) const READ: Self = Self(1 << 0); // 1
+
+    pub(crate) const WRITE: Self = Self(1 << 1); // 2
+
+    pub(crate) const PRIVATE_MESSAGE: Self = Self(1 << 2); // 4
+
+    pub(crate) const HINT: Self = Self(1 << 3); // 8
+
+    pub(crate) const RECEIVED: Self = Self(1 << 4); // 16
+
+    // /// New empty flags.
+    // #[inline]
+    // pub(crate) const fn new() -> Self {
+    //     Self::NONE
+    // }
+
+    /// Add flag.
+    #[inline]
+    pub(crate) const fn add(&mut self, other: Self) {
+        self.0 |= other.0;
+    }
+
+    /// Remove flag.
+    #[inline]
+    pub(crate) const fn remove(&mut self, other: Self) {
+        self.0 ^= other.0;
+    }
+
+    #[inline]
+    pub(crate) const fn has(&self, other: Self) -> bool {
+        self.0 & other.0 != 0
+    }
+
+    // #[inline]
+    // pub(crate) const fn as_u16(&self) -> u16 {
+    //     self.0
+    // }
+}