esp_wifi/compat/
mod.rs

1pub mod common;
2pub mod malloc;
3pub mod misc;
4pub mod timer_compat;
5
6#[unsafe(no_mangle)]
7unsafe extern "C" fn _putchar(c: u8) {
8    static mut BUFFER: [u8; 256] = [0u8; 256];
9    static mut IDX: usize = 0;
10
11    unsafe {
12        let buffer = core::ptr::addr_of_mut!(BUFFER);
13        if c == 0 || c == b'\n' || IDX == (*buffer).len() - 1 {
14            if c != 0 {
15                BUFFER[IDX] = c;
16            } else {
17                IDX = IDX.saturating_sub(1);
18            }
19
20            info!("{}", core::str::from_utf8_unchecked(&BUFFER[..IDX]));
21            IDX = 0;
22        } else {
23            BUFFER[IDX] = c;
24            IDX += 1;
25        }
26    }
27}