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Optimize named params via caching and use of smallvec

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This commit is contained in:
Thom Chiovoloni
2020-04-13 23:47:12 -07:00
committed by Thom Chiovoloni
parent cf9b6e9ae2
commit 552416039e
7 changed files with 213 additions and 12 deletions
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18
src/raw_statement.rs
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@@ -7,11 +7,11 @@ use std::ptr;
// Private newtype for raw sqlite3_stmts that finalize themselves when dropped.
#[derive(Debug)]
pub struct RawStatement(*mut ffi::sqlite3_stmt, bool);
pub struct RawStatement(*mut ffi::sqlite3_stmt, bool, crate::util::ParamIndexCache);
impl RawStatement {
pub unsafe fn new(stmt: *mut ffi::sqlite3_stmt, tail: bool) -> RawStatement {
RawStatement(stmt, tail)
RawStatement(stmt, tail, Default::default())
}
pub fn is_null(&self) -> bool {
@@ -87,12 +87,14 @@ impl RawStatement {
unsafe { ffi::sqlite3_bind_parameter_count(self.0) as usize }
}
pub fn bind_parameter_index(&self, name: &CStr) -> Option<usize> {
let r = unsafe { ffi::sqlite3_bind_parameter_index(self.0, name.as_ptr()) };
match r {
0 => None,
i => Some(i as usize),
}
pub fn bind_parameter_index(&self, name: &str) -> Option<usize> {
self.2.get_or_insert_with(name, |param_cstr| {
let r = unsafe { ffi::sqlite3_bind_parameter_index(self.0, param_cstr.as_ptr()) };
match r {
0 => None,
i => Some(i as usize),
}
})
}
pub fn clear_bindings(&self) -> c_int {