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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
use std::ffi::CStr;
use std::iter::Iterator;
use std::ops::Drop;
use std::path::PathBuf;
use supercow::Phantomcow;
use crate::ffi;
pub trait FilenamesOwner {}
#[derive(Debug)]
pub(crate) struct FilenamesPtr {
pub ptr: *mut ffi::notmuch_filenames_t,
}
impl Drop for FilenamesPtr {
fn drop(self: &mut Self) {
let valid = unsafe { ffi::notmuch_filenames_valid(self.ptr) };
if valid != 0 {
unsafe { ffi::notmuch_filenames_destroy(self.ptr) };
}
}
}
#[derive(Debug)]
pub struct Filenames<'o, O>
where
O: FilenamesOwner,
{
pub(crate) handle: FilenamesPtr,
pub(crate) marker: Phantomcow<'o, O>,
}
impl<'o, O> Filenames<'o, O>
where
O: FilenamesOwner + 'o,
{
pub fn from_ptr<P>(ptr: *mut ffi::notmuch_filenames_t, owner: P) -> Filenames<'o, O>
where
P: Into<Phantomcow<'o, O>>,
{
Filenames {
handle: FilenamesPtr { ptr },
marker: owner.into(),
}
}
}
impl<'o, O> Iterator for Filenames<'o, O>
where
O: FilenamesOwner + 'o,
{
type Item = PathBuf;
fn next(self: &mut Self) -> Option<Self::Item> {
let valid = unsafe { ffi::notmuch_filenames_valid(self.handle.ptr) };
if valid == 0 {
return None;
}
let ctag = unsafe {
let t = ffi::notmuch_filenames_get(self.handle.ptr);
ffi::notmuch_filenames_move_to_next(self.handle.ptr);
CStr::from_ptr(t)
};
Some(PathBuf::from(ctag.to_str().unwrap()))
}
}
unsafe impl<'o, O> Send for Filenames<'o, O> where O: FilenamesOwner + 'o {}
unsafe impl<'o, O> Sync for Filenames<'o, O> where O: FilenamesOwner + 'o {}
|
