faiss-next 0.6.0

Rust bindings for Faiss (Facebook AI Similarity Search)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

use std::ptr;

use faiss_next_sys::FaissStandardGpuResources;

use crate::error::{check_return_code, Result};

pub struct GpuResources {
    pub(super) inner: *mut FaissStandardGpuResources,
}

impl GpuResources {
    pub fn new() -> Result<Self> {
        unsafe {
            let mut inner = ptr::null_mut();
            check_return_code(faiss_next_sys::faiss_StandardGpuResources_new(&mut inner))?;
            Ok(Self { inner })
        }
    }

    pub fn no_temp_memory(&mut self) -> Result<()> {
        check_return_code(unsafe {
            faiss_next_sys::faiss_StandardGpuResources_noTempMemory(self.inner)
        })
    }

    pub fn set_temp_memory(&mut self, size: usize) -> Result<()> {
        check_return_code(unsafe {
            faiss_next_sys::faiss_StandardGpuResources_setTempMemory(self.inner, size)
        })
    }

    pub fn set_pinned_memory(&mut self, size: usize) -> Result<()> {
        check_return_code(unsafe {
            faiss_next_sys::faiss_StandardGpuResources_setPinnedMemory(self.inner, size)
        })
    }
}

impl Default for GpuResources {
    fn default() -> Self {
        Self::new().expect("failed to create GpuResources")
    }
}

impl Drop for GpuResources {
    fn drop(&mut self) {
        if !self.inner.is_null() {
            unsafe {
                faiss_next_sys::faiss_StandardGpuResources_free(self.inner);
            }
        }
    }
}

unsafe impl Send for GpuResources {}
unsafe impl Sync for GpuResources {}