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event-broker: Disable inotify when no subscribers are available
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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]>
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ueno committed Apr 1, 2024
1 parent f8a5cf3 commit 78c9c9b
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Showing 5 changed files with 247 additions and 105 deletions.
1 change: 1 addition & 0 deletions Cargo.lock

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2 changes: 1 addition & 1 deletion Cargo.toml
Original file line number Diff line number Diff line change
Expand Up @@ -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"
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2 changes: 1 addition & 1 deletion event-broker/Cargo.toml
Original file line number Diff line number Diff line change
Expand Up @@ -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
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