src/threads.rs


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

use std::{
    ops,
    marker,
    iter
};

use utils::{
    NewFromPtr,
};

use Database;
use Thread;
use ffi;

#[derive(Debug)]
pub struct Threads<'d>(
    *mut ffi::notmuch_threads_t,
    marker::PhantomData<&'d mut Database>,
);

impl<'d> NewFromPtr<*mut ffi::notmuch_threads_t> for Threads<'d> {
    fn new(ptr: *mut ffi::notmuch_threads_t) -> Threads<'d> {
        Threads(ptr, marker::PhantomData)
    }
}

impl<'d> ops::Drop for Threads<'d> {
    fn drop(&mut self) {
        unsafe {
            ffi::notmuch_threads_destroy(self.0)
        };
    }
}

impl<'d> iter::Iterator for Threads<'d> {
    type Item = Thread<'d>;

    fn next(&mut self) -> Option<Self::Item> {

        let valid = unsafe {
            ffi::notmuch_threads_valid(self.0)
        };

        if valid == 0{
            return None
        }

        let cthread = unsafe {
            ffi::notmuch_threads_move_to_next(self.0);
            ffi::notmuch_threads_get(self.0)
        };

        Some(Thread::new(cthread))
    }
}