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Add pool_constraints method to OptsBuilder to set pool_min and pool_max #368

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Add pool_constraints method to OptsBuilder to set pool_min and pool_max #368

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17 changes: 17 additions & 0 deletions src/conn/opts/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -755,6 +755,23 @@ impl OptsBuilder {
Ok(self)
}

/// Pool constraints (pool_min and pool_max). Passing None to one or the
/// other preserves the default value(s) (defaults to 10 and 100 resp.)
pub fn pool_constraints(mut self, pool_min: Option<usize>, pool_max: Option<usize>) -> Result<Self, UrlError> {
let pool_min = pool_min.unwrap_or(PoolConstraints::DEFAULT.min());
let pool_max = pool_max.unwrap_or(PoolConstraints::DEFAULT.max());

if let Some(pool_constraints) = PoolConstraints::new(pool_min, pool_max) {
self.opts.0.pool_opts = self.opts.0.pool_opts.with_constraints(pool_constraints);
} else {
return Err(UrlError::InvalidPoolConstraints {
min: pool_min,
max: pool_max,
});
}
Ok(self)
}

/// Address of mysql server (defaults to `127.0.0.1`). Hostnames should also work.
///
/// **Note:** IPv6 addresses must be given in square brackets, e.g. `[::1]`.
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