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36 lines
756 B
36 lines
756 B
use crate::process::*;
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use crate::arch::interrupt::TrapFrame;
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use crate::arch::cpu;
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use log::*;
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pub static mut TICK: usize = 0;
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pub fn uptime_msec() -> usize {
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unsafe {crate::trap::TICK / crate::consts::USEC_PER_TICK / 1000}
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}
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pub fn timer() {
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if cpu::id() == 0 {
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unsafe { TICK += 1; }
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}
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processor().tick();
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}
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pub fn error(tf: &TrapFrame) -> ! {
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error!("{:#x?}", tf);
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let tid = processor().tid();
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error!("On CPU{} Thread {}", cpu::id(), tid);
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processor().manager().exit(tid, 0x100);
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processor().yield_now();
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unreachable!();
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}
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pub fn serial(c: char) {
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if c == '\r' {
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// in linux, we use '\n' instead
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crate::fs::STDIN.push('\n');
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} else {
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crate::fs::STDIN.push(c);
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}
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} |