faiss_next/index/
pre_transform.rs

1use std::ptr;
2
3use faiss_next_sys::{self, FaissIndex, FaissIndexPreTransform};
4
5use crate::error::{check_return_code, Error, Result};
6use crate::index::native::InnerPtr;
7use crate::index::traits::Index;
8
9pub struct IndexPreTransform {
10    inner: InnerPtr<FaissIndexPreTransform>,
11}
12
13impl IndexPreTransform {
14    pub fn new(index: super::IndexImpl) -> Result<Self> {
15        unsafe {
16            let mut inner = ptr::null_mut();
17            check_return_code(faiss_next_sys::faiss_IndexPreTransform_new_with(
18                &mut inner,
19                index.inner_ptr(),
20            ))?;
21            std::mem::forget(index);
22            Ok(Self {
23                inner: InnerPtr::new(inner)?,
24            })
25        }
26    }
27
28    pub fn from_index(index: super::IndexImpl) -> Result<Self> {
29        unsafe {
30            let pt_ptr = faiss_next_sys::faiss_IndexPreTransform_cast(index.inner_ptr());
31            if pt_ptr.is_null() {
32                return Err(Error::invalid_cast(
33                    "IndexPreTransform",
34                    "index is not a PreTransform index",
35                ));
36            }
37            std::mem::forget(index);
38            Ok(Self {
39                inner: InnerPtr::new(pt_ptr)?,
40            })
41        }
42    }
43
44    pub fn sub_index(&self) -> *mut FaissIndex {
45        unsafe { faiss_next_sys::faiss_IndexPreTransform_index(self.inner.as_ptr()) }
46    }
47}
48
49impl Index for IndexPreTransform {
50    fn inner_ptr(&self) -> *mut FaissIndex {
51        self.inner.as_ptr() as *mut FaissIndex
52    }
53}
54
55impl Drop for IndexPreTransform {
56    fn drop(&mut self) {
57        tracing::trace!("dropping IndexPreTransform");
58        unsafe {
59            faiss_next_sys::faiss_IndexPreTransform_free(self.inner.as_ptr());
60        }
61    }
62}
63
64unsafe impl Send for IndexPreTransform {}
65unsafe impl Sync for IndexPreTransform {}
faiss_next/index/pre_transform.rs

faiss_next/index/
pre_transform.rs
