kernel/uspace/
core.rs

1//! This module provides the core userspace services of the microkernel.
2
3use macros::service;
4
5/// The init service.
6#[service(mem_size = 8192)]
7pub struct Init {}
8
9impl Init {
10    /// The entry point of the init service. TODO: Currently, this is a dummy implementation.
11    pub extern "C" fn main() {
12        loop {
13            hal::asm::syscall!(0, 0, "Hello from Init!".as_bytes().as_ptr(), 16);
14
15            for _ in 0..1_000 {
16                unsafe { core::arch::asm!("nop") }
17            }
18        }
19    }
20}
21
22/// A dummy service. TODO: Currently, this is a dummy implementation.
23#[service(mem_size = 8192)]
24pub struct Dummy {}
25
26impl Dummy {
27    /// The entry point of the dummy service. TODO: Currently, this is a dummy implementation.
28    pub extern "C" fn main() {
29        loop {
30            // The first argument is a pointer to a string.
31            hal::asm::syscall!(0, 0, "Hello from Dummy!".as_bytes().as_ptr(), 17);
32
33            for _ in 0..1_000 {
34                unsafe { core::arch::asm!("nop") }
35            }
36        }
37    }
38}
39
40/// A second dummy service. TODO: Currently, this is a dummy implementation.
41#[service(mem_size = 8192)]
42pub struct Dummy2 {}
43
44impl Dummy2 {
45    /// The entry point of the second dummy service. TODO: Currently, this is a dummy implementation.
46    pub extern "C" fn main() {
47        loop {
48            hal::asm::syscall!(0, 0, "Hello from Dummy2!".as_bytes().as_ptr(), 18);
49
50            for _ in 0..1_000 {
51                unsafe { core::arch::asm!("nop") }
52            }
53        }
54    }
55}
kernel/uspace/core.rs

kernel/uspace/
core.rs
