224c43f761
* Port previous ethernet scheme * Add ipd * Fix initfs rebuilds, use QEMU user networking addresses in ipd * Add tcp/udp, netutils, dns, and network config * Add fsync to network driver * Add dns, router, subnet by default * Fix e1000 driver. Make ethernet and IP non-blocking to avoid deadlocks * Add orbital server, WIP * Add futex * Add orbutils and orbital * Update libstd, orbutils, and orbital Move ANSI key encoding to vesad * Add orbital assets * Update orbital * Update to add login manager * Add blocking primitives, block for most things except waitpid, update orbital * Wait in waitpid and IRQ, improvements for other waits * Fevent in root scheme * WIP: Switch to using fevent * Reorganize * Event based e1000d driver * Superuser-only access to some network schemes, display, and disk * Superuser root and irq schemes * Fix orbital
69 lines
1.7 KiB
Rust
69 lines
1.7 KiB
Rust
use core::str;
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use core::sync::atomic::{AtomicUsize, Ordering, ATOMIC_USIZE_INIT};
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use spin::Once;
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use context;
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use sync::WaitQueue;
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use syscall::error::*;
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use syscall::flag::EVENT_READ;
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use syscall::scheme::Scheme;
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pub static DEBUG_SCHEME_ID: AtomicUsize = ATOMIC_USIZE_INIT;
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/// Input queue
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static INPUT: Once<WaitQueue<u8>> = Once::new();
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/// Initialize input queue, called if needed
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fn init_input() -> WaitQueue<u8> {
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WaitQueue::new()
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}
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/// Add to the input queue
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#[no_mangle]
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pub extern fn debug_input(b: u8) {
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let len = INPUT.call_once(init_input).send(b);
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context::event::trigger(DEBUG_SCHEME_ID.load(Ordering::SeqCst), 0, EVENT_READ, len);
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}
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pub struct DebugScheme;
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impl Scheme for DebugScheme {
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fn open(&self, _path: &[u8], _flags: usize, _uid: u32, _gid: u32) -> Result<usize> {
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Ok(0)
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}
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fn dup(&self, _file: usize) -> Result<usize> {
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Ok(0)
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}
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/// Read the file `number` into the `buffer`
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///
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/// Returns the number of bytes read
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fn read(&self, _file: usize, buf: &mut [u8]) -> Result<usize> {
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Ok(INPUT.call_once(init_input).receive_into(buf))
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}
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/// Write the `buffer` to the `file`
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///
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/// Returns the number of bytes written
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fn write(&self, _file: usize, buffer: &[u8]) -> Result<usize> {
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//TODO: Write bytes, do not convert to str
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print!("{}", unsafe { str::from_utf8_unchecked(buffer) });
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Ok(buffer.len())
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}
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fn fevent(&self, _file: usize, _flags: usize) -> Result<usize> {
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Ok(0)
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}
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fn fsync(&self, _file: usize) -> Result<usize> {
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Ok(0)
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}
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/// Close the file `number`
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fn close(&self, _file: usize) -> Result<usize> {
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Ok(0)
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}
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}
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