lv_std/unsafe_std/c/
c_string.rs

1use std::ffi::c_char;
2use std::mem;
3use crate::unsafe_std::ptrs::into_raw_ptr::IntoRawPtr;
4use crate::unsafe_std::ptrs::raw_ptr::RawPtr;
5
6#[repr(transparent)]
7pub struct CString {
8    chars: RawPtr<c_char>
9}
10
11impl CString {
12    pub  fn new_slice(str: &str) -> Self {
13        unsafe {
14            Self {
15                chars: RawPtr::<u8>::from( str.as_ptr()).cast()
16            }
17        }
18    }
19    
20    /// this method takes ownership of the underlying data, so you will need manually free
21    pub unsafe fn new_owned(str: String) -> Self {
22        unsafe {
23            let c = Self {
24                chars: RawPtr::<u8>::from(str.as_ptr()).cast()
25            };
26            mem::forget(str);
27            c
28        }
29    }
30    
31    pub unsafe fn free(&mut self) {
32        unsafe {
33            self.chars.free();
34        }
35    }
36}
37
38impl Copy for CString {}
39
40impl Clone for CString {
41    fn clone(&self) -> Self {
42        Self {
43            chars: self.chars.clone()
44        }
45    }
46}
47
48unsafe impl IntoRawPtr for CString {
49    type Pointee = c_char;
50
51    #[inline(always)]
52    unsafe fn to_ptr(&self) -> RawPtr<Self::Pointee> {
53        self.chars
54    }
55}
56
lv_std/unsafe_std/c/c_string.rs

lv_std/unsafe_std/c/
c_string.rs
