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Add Connection::extension_init2

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This commit is contained in:
gwenn
2023-07-09 15:53:03 +02:00
parent 92c536b622
commit 81585a75cb
6 changed files with 75 additions and 84 deletions
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28
libsqlite3-sys/build.rs
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@@ -773,38 +773,18 @@ mod loadable_extension {
}
// (3) generate rust code similar to SQLITE_EXTENSION_INIT2 macro
let tokens = quote::quote! {
/// Loadable extension initialization error
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
#[non_exhaustive]
pub enum InitError {
/// Invalid sqlite3_api_routines pointer
NullApiPointer,
/// Version mismatch between the extension and the SQLite3 library
VersionMismatch{compile_time: i32, runtime: i32},
/// Invalid function pointer in one of sqlite3_api_routines fields
NullFunctionPointer,
}
impl ::std::fmt::Display for InitError {
fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
match *self {
InitError::NullApiPointer => write!(f, "Invalid sqlite3_api_routines pointer"),
InitError::VersionMismatch{compile_time, runtime} => write!(f, "SQLite version mismatch: {runtime} < {compile_time}"),
InitError::NullFunctionPointer => write!(f, "Some sqlite3_api_routines fields are null"),
}
}
}
/// Like SQLITE_EXTENSION_INIT2 macro
pub unsafe fn rusqlite_extension_init2(#p_api: *mut #sqlite3_api_routines_ident) -> ::std::result::Result<(),InitError> {
pub unsafe fn rusqlite_extension_init2(#p_api: *mut #sqlite3_api_routines_ident) -> ::std::result::Result<(),crate::InitError> {
if #p_api.is_null() {
return Err(InitError::NullApiPointer);
return Err(crate::InitError::NullApiPointer);
}
if let Some(fun) = (*#p_api).libversion_number {
let version = fun();
if SQLITE_VERSION_NUMBER > version {
return Err(InitError::VersionMismatch{compile_time: SQLITE_VERSION_NUMBER, runtime: version});
return Err(crate::InitError::VersionMismatch{compile_time: SQLITE_VERSION_NUMBER, runtime: version});
}
} else {
return Err(InitError::NullFunctionPointer);
return Err(crate::InitError::NullFunctionPointer);
}
#(#stores)*
Ok(())