event-broker: Disable inotify when no subscribers are available

When no subscribers are available, event-broker doesn't need to monitor the log file. This stops the monitoring when the last subscriber leaves and restart it upon a new subscriber being connected. This also adds handling of Ctrl-C to stop the deamon if it is not activated through systemd. Signed-off-by: Daiki Ueno <[email protected]>
latchset · Nov 29, 2023 · 7ceed2a · 7ceed2a
1 parent c4ebc21
commit 7ceed2a
Show file tree

Hide file tree

Showing 4 changed files with 238 additions and 84 deletions.
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -41,7 +41,7 @@ thiserror = "1.0"
 time = "0.3"
 tokio = "1.23"
 tokio-serde = { version = "0.8", features = ["cbor"] }
-tokio-stream = "0.1"
+tokio-stream = { version = "0.1", features = ["sync"] }
 tokio-util = { version = "0.7", features = ["codec"] }
 toml = "0.7"
 tracing = "0.1"

diff --git a/event-broker/Cargo.toml b/event-broker/Cargo.toml
@@ -17,7 +17,7 @@ futures.workspace = true
 inotify.workspace = true
 libsystemd = { version = "0.7", optional = true }
 serde_cbor.workspace = true
-tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }
+tokio = { workspace = true, features = ["macros", "rt-multi-thread", "signal"] }
 tokio-serde.workspace = true
 tokio-stream.workspace = true
 tokio-util.workspace = true