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Time (#11)

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* WIP: Time syscalls

* Count time from PIT using low tickrate

* Implement realtime

* Implement nanosleep with a tight loop
This commit is contained in:
Jeremy Soller 2016-10-06 20:50:14 -06:00 • committed by GitHub
parent 798f7c8808
commit 64cc730eac
11 changed files with 199 additions and 7 deletions
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7
kernel/syscall/mod.rs
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@ -6,8 +6,10 @@ pub use self::syscall::{data, error, flag, number, scheme};
pub use self::fs::*;
pub use self::process::*;
pub use self::time::*;
pub use self::validate::*;
use self::data::TimeSpec;
use self::error::{Error, Result, ENOSYS};
use self::number::*;
@ -17,6 +19,9 @@ pub mod fs;
/// Process syscalls
pub mod process;
/// Time syscalls
pub mod time;
/// Validate input
pub mod validate;
@ -52,6 +57,7 @@ pub extern fn syscall(a: usize, b: usize, c: usize, d: usize, e: usize, f: usize
SYS_IOPL => iopl(b),
SYS_CLONE => clone(b, stack),
SYS_YIELD => sched_yield(),
SYS_NANOSLEEP => nanosleep(validate_slice(b as *const TimeSpec, 1).map(|req| &req[0])?, validate_slice_mut(c as *mut TimeSpec, 1).ok().map(|rem| &mut rem[0])),
SYS_GETCWD => getcwd(validate_slice_mut(b as *mut u8, c)?),
SYS_GETUID => getuid(),
SYS_GETGID => getgid(),
@ -59,6 +65,7 @@ pub extern fn syscall(a: usize, b: usize, c: usize, d: usize, e: usize, f: usize
SYS_GETEGID => getegid(),
SYS_SETUID => setuid(b as u32),
SYS_SETGID => setgid(b as u32),
SYS_CLOCK_GETTIME => clock_gettime(b, validate_slice_mut(c as *mut TimeSpec, 1).map(|time| &mut time[0])?),
SYS_PIPE2 => pipe2(validate_slice_mut(b as *mut usize, 2)?, c),
SYS_PHYSALLOC => physalloc(b),
SYS_PHYSFREE => physfree(b, c),