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sqlite: use Arc<> around StatementHandle instead of Copying it #1186

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link2xt
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@link2xt link2xt commented Apr 23, 2021

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This guarantees that StatementHandle is never used after calling
`sqlite3_finalize`. Now `sqlite3_finalize` is only called when
StatementHandle is dropped.
Otherwise some tests fail to close connection.
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link2xt commented Apr 23, 2021

This is an attempt to fix persistent segfaults in sqlite3_step: deltachat/deltachat-core-rust#2378 (comment)

Comment on lines +38 to +43
let resp = match status {
SQLITE_ROW => Ok(Either::Right(())),
SQLITE_DONE => Ok(Either::Left(statement.changes())),
_ => Err(statement.last_error().into()),
};
resp
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Suggested change
let resp = match status {
SQLITE_ROW => Ok(Either::Right(())),
SQLITE_DONE => Ok(Either::Left(statement.changes())),
_ => Err(statement.last_error().into()),
};
resp
match status {
SQLITE_ROW => Ok(Either::Right(())),
SQLITE_DONE => Ok(Either::Left(statement.changes())),
_ => Err(statement.last_error().into()),
}

resp
} else {
// Statement is already finalized.
Err(Error::WorkerCrashed)
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Strictly speaking, the worker didn't actually crash here. I'd consider a different error variant, maybe even a new one if none of the existing fit.

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2 participants