Implement --ephemeral CLI flag
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hmrtn
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--ephemeral CLI flag--ephemeral CLI flag
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rustfmt rm target build added: newsfragment renamed trin data dirs and cargo fmt spelling comment: todo message cargo fmt
ogenev
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May 2, 2022
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Setting the cleanup handler inside json-rpc IPC exiter will not trigger if we use HTTP json-rpc transport.
For me, it makes more sense to create a general tokio exit handler function and set the cleanup handler right after we receive ctrl-c signal in tokio as described in this example: https://docs.rs/tokio/latest/tokio/signal/fn.ctrl_c.html#examples.
async fn handle_tokio_exit() {
tokio::signal::ctrl_c()
.await
.expect("failed to pause until ctrl-c");
cleanup_data_dir();
}Then we can use this function in src/main.rs, trin-history/src/main.rs and trin-state/src/main.rs to wait for ctr-c and cleanup the directories.
| @@ -86,6 +87,7 @@ fn set_ipc_cleanup_handlers(ipc_path: &str) { | |||
| if let Err(err) = fs::remove_file(&ipc_path) { | |||
| debug!("Ctrl-C: Skipped removing {} because: {}", ipc_path, err); | |||
| }; | |||
| cleanup_data_dir(); | |||
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This will not trigger if we initialize the node with HTTP json-rpc transport instead of IPC.
This was referenced Jun 28, 2022
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What was wrong?
This Fixes #81, implementing the
--ephemeralCLI flag.How was it fixed?
This was fixed by creating a mutable singleton vector that stores the session's data path on startup and utilizes it in
utils::db::cleanup_data_dir, which deletes the ephemeral directories on signal interruption (if the--ephemeralCLI flag is enabled).Trin's signal interruption is already being handled in the
service.rsviasetup_ipc_cleanup_handlers(), and can only be called once. In order to minimize the amount of changes, a call tocleanup_data_dir()has been added here.To-Do
lock()usage with mutable global variables