67 lines
2.0 KiB
Rust
67 lines
2.0 KiB
Rust
|
use thiserror::Error;
|
||
|
|
use std::{ffi::CString, fmt, path::Path, ptr};
|
||
|
|
|
||
|
|
use crate::{bindings::{SSV_InitLIB2, SSV_TermLIB}, types::{common::read_from_buffer, configuration::Configuration}};
|
||
|
|
|
||
|
|
#[derive(Error, Debug)]
|
||
|
|
pub struct SesamVitaleError {
|
||
|
|
code: u16,
|
||
|
|
}
|
||
|
|
|
||
|
|
impl fmt::Display for SesamVitaleError {
|
||
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||
|
|
write!(f, "Got error code {} from SSV_LireConfig", self.code)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
pub fn init_library(sesam_ini_path: &Path) -> Result<(), SesamVitaleError> {
|
||
|
|
// TODO: better error handling
|
||
|
|
let path_str = sesam_ini_path.to_str().unwrap();
|
||
|
|
let path_ptr = CString::new(path_str).expect("failed to create cstring");
|
||
|
|
|
||
|
|
let exit_code: u16 = unsafe { SSV_InitLIB2(path_ptr.as_ptr()) };
|
||
|
|
if exit_code != 0 {
|
||
|
|
let error = SesamVitaleError { code: exit_code };
|
||
|
|
return Err(error);
|
||
|
|
};
|
||
|
|
|
||
|
|
Ok(())
|
||
|
|
}
|
||
|
|
pub fn close_library() -> Result<(), SesamVitaleError> {
|
||
|
|
let exit_code: u16 = unsafe { SSV_TermLIB() };
|
||
|
|
if exit_code != 0 {
|
||
|
|
let error = SesamVitaleError { code: exit_code };
|
||
|
|
return Err(error);
|
||
|
|
};
|
||
|
|
|
||
|
|
Ok(())
|
||
|
|
}
|
||
|
|
|
||
|
|
pub fn read_config() -> Result<Configuration, SesamVitaleError> {
|
||
|
|
let mut buffer_ptr: *mut libc::c_void = ptr::null_mut();
|
||
|
|
let mut size: libc::size_t = 0;
|
||
|
|
|
||
|
|
let buffer_ptr_ptr: *mut *mut libc::c_void = &mut buffer_ptr;
|
||
|
|
let size_ptr: *mut libc::size_t = &mut size;
|
||
|
|
|
||
|
|
// Need to add proper error handling -> return a result with error code pointing to an error
|
||
|
|
// enum
|
||
|
|
let exit_code: u16 = unsafe { SSV_LireConfig(buffer_ptr_ptr, size_ptr) };
|
||
|
|
|
||
|
|
if exit_code != 0 {
|
||
|
|
let error = SesamVitaleError { code: exit_code };
|
||
|
|
return Err(error);
|
||
|
|
};
|
||
|
|
|
||
|
|
let buffer: &[u8] = unsafe { std::slice::from_raw_parts(buffer_ptr as *const u8, size) };
|
||
|
|
|
||
|
|
// TODO: Improve error handling
|
||
|
|
let configuration: Configuration = read_from_buffer(buffer).unwrap();
|
||
|
|
|
||
|
|
// TODO: Call library function for memory delocating
|
||
|
|
unsafe { libc::free(buffer_ptr) };
|
||
|
|
|
||
|
|
Ok(configuration)
|
||
|
|
}
|
||
|
|
|