obs_wrapper/
string.rs

1use std::{ffi::CString, ptr::null};
2
3#[derive(Debug, Eq, PartialEq, Hash, Clone)]
4pub enum ObsString {
5    Static(&'static str),
6    Dynamic(CString),
7}
8
9impl ObsString {
10    /// # Safety
11    /// Does no checks for nul terminated strings. This could cause memory
12    /// overruns if used incorrectly.
13    pub const unsafe fn from_nul_terminted_str(string: &'static str) -> Self {
14        Self::Static(string)
15    }
16
17    pub fn as_str(&self) -> &str {
18        match self {
19            Self::Static(s) => s,
20            Self::Dynamic(s) => s.as_c_str().to_str().unwrap(),
21        }
22    }
23
24    pub fn as_ptr(&self) -> *const std::os::raw::c_char {
25        match self {
26            Self::Static(s) => (*s).as_ptr() as *const std::os::raw::c_char,
27            Self::Dynamic(s) => s.as_ptr(),
28        }
29    }
30
31    pub fn ptr_or_null(opt: &Option<Self>) -> *const std::os::raw::c_char {
32        opt.as_ref().map(|s| s.as_ptr()).unwrap_or(null())
33    }
34}
35
36impl<T: Into<Vec<u8>>> From<T> for ObsString {
37    fn from(s: T) -> Self {
38        Self::Dynamic(CString::new(s).expect("Failed to convert to CString"))
39    }
40}
41
42#[macro_export]
43macro_rules! obs_string {
44    ($e:expr) => {
45        unsafe { $crate::string::ObsString::from_nul_terminted_str(concat!($e, "\0")) }
46    };
47}
obs_wrapper/string.rs

obs_wrapper/
string.rs
