blob: 002ffa9c1871c3c210af4a18474f4611a9018328 (
plain)
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
|
use std::marker::PhantomData;
use sys::*;
use Device;
/// An iterator over the available devices.
pub struct Devices<'a> {
ptr: *mut hid_device_info,
cur: *mut hid_device_info,
_marker: PhantomData<&'a ()>,
}
impl<'a> Devices<'a> {
#[doc(hidden)]
pub unsafe fn new(vendor: Option<u16>, product: Option<u16>) -> Self {
let list = hid_enumerate(vendor.unwrap_or(0), product.unwrap_or(0));
Devices {
ptr: list,
cur: list,
_marker: PhantomData,
}
}
}
impl<'a> Iterator for Devices<'a> {
type Item = Device<'a>;
fn next(&mut self) -> Option<Self::Item> {
if self.cur.is_null() {
return None;
}
unsafe {
let info = Device::new(self.cur);
self.cur = (*self.cur).next;
Some(info)
}
}
}
impl<'a> Drop for Devices<'a> {
fn drop(&mut self) {
unsafe {
hid_free_enumeration(self.ptr);
}
}
}
|
