fresh-borzoni commented on code in PR #302:
URL: https://github.com/apache/fluss-rust/pull/302#discussion_r2799435281
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bindings/cpp/include/fluss.hpp:
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@@ -46,6 +46,134 @@ struct UpsertWriter;
struct Lookuper;
} // namespace ffi
+/// Named constants for Fluss API error codes.
+///
+/// Server API errors have error_code > 0 or == -1.
+/// Client-side errors have error_code == CLIENT_ERROR (-2).
+/// These constants match the Rust core FlussError enum and are stable across
protocol versions.
+/// New server error codes work automatically (error_code is a raw int, not a
closed enum) —
+/// these constants are convenience names, not an exhaustive list.
+struct ErrorCode {
+ /// Client-side error (not from server API protocol). Check error_message
for details.
+ static constexpr int CLIENT_ERROR = -2;
+ /// The server experienced an unexpected error when processing the request.
+ static constexpr int UNKNOWN_SERVER_ERROR = -1;
+ /// The server disconnected before a response was received.
+ static constexpr int NETWORK_EXCEPTION = 1;
Review Comment:
well, None means 'no error', so it's like a Rust core sentinel, but we may
add it to match :)
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