Add new scheme traits, add generator script

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "redox_syscall"
-version = "0.1.38"
+version = "0.1.39"
 description = "A Rust library to access raw Redox system calls"
 license = "MIT"
 authors = ["Jeremy Soller <jackpot51@gmail.com>"]

src/scheme.rs

@@ -1,302 +0,0 @@
-use core::{mem, slice};
-
-use super::*;
-
-pub trait Scheme {
-    fn handle(&self, packet: &mut Packet) {
-        packet.a = Error::mux(match packet.a {
-            SYS_OPEN => self.open(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d, packet.uid, packet.gid),
-            SYS_CHMOD => self.chmod(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d as u16, packet.uid, packet.gid),
-            SYS_RMDIR => self.rmdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
-            SYS_UNLINK => self.unlink(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
-
-            SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
-            SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
-            SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
-            SYS_LSEEK => self.seek(packet.b, packet.c, packet.d),
-            SYS_FCHMOD => self.fchmod(packet.b, packet.c as u16),
-            SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
-            SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
-            SYS_FEVENT => self.fevent(packet.b, packet.c),
-            SYS_FMAP => self.fmap(packet.b, packet.c, packet.d),
-            SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
-            SYS_FRENAME => self.frename(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, packet.uid, packet.gid),
-            SYS_FSTAT => if packet.d >= mem::size_of::<Stat>() {
-                self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FSTATVFS => if packet.d >= mem::size_of::<StatVfs>() {
-                self.fstatvfs(packet.b, unsafe { &mut *(packet.c as *mut StatVfs) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FSYNC => self.fsync(packet.b),
-            SYS_FTRUNCATE => self.ftruncate(packet.b, packet.c),
-            SYS_FUTIMENS => if packet.d >= mem::size_of::<TimeSpec>() {
-                self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::<TimeSpec>()) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_CLOSE => self.close(packet.b),
-            _ => Err(Error::new(ENOSYS))
-        });
-    }
-
-    /* Scheme operations */
-
-    #[allow(unused_variables)]
-    fn open(&self, path: &[u8], flags: usize, uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(ENOENT))
-    }
-
-    #[allow(unused_variables)]
-    fn chmod(&self, path: &[u8], mode: u16, uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(ENOENT))
-    }
-
-    #[allow(unused_variables)]
-    fn rmdir(&self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(ENOENT))
-    }
-
-    #[allow(unused_variables)]
-    fn unlink(&self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(ENOENT))
-    }
-
-    /* Resource operations */
-    #[allow(unused_variables)]
-    fn dup(&self, old_id: usize, buf: &[u8]) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn read(&self, id: usize, buf: &mut [u8]) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn write(&self, id: usize, buf: &[u8]) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn seek(&self, id: usize, pos: usize, whence: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fchmod(&self, id: usize, mode: u16) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fchown(&self, id: usize, uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fcntl(&self, id: usize, cmd: usize, arg: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fevent(&self, id: usize, flags: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fmap(&self, id: usize, offset: usize, size: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fpath(&self, id: usize, buf: &mut [u8]) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn frename(&self, id: usize, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fstat(&self, id: usize, stat: &mut Stat) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fstatvfs(&self, id: usize, stat: &mut StatVfs) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fsync(&self, id: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn ftruncate(&self, id: usize, len: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn futimens(&self, id: usize, times: &[TimeSpec]) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn close(&self, id: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-}
-
-pub trait SchemeMut {
-    fn handle(&mut self, packet: &mut Packet) {
-        packet.a = Error::mux(match packet.a {
-            SYS_OPEN => self.open(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d, packet.uid, packet.gid),
-            SYS_CHMOD => self.chmod(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d as u16, packet.uid, packet.gid),
-            SYS_RMDIR => self.rmdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
-            SYS_UNLINK => self.unlink(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
-
-            SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
-            SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
-            SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
-            SYS_LSEEK => self.seek(packet.b, packet.c, packet.d),
-            SYS_FCHMOD => self.fchmod(packet.b, packet.c as u16),
-            SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
-            SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
-            SYS_FEVENT => self.fevent(packet.b, packet.c),
-            SYS_FMAP => self.fmap(packet.b, packet.c, packet.d),
-            SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
-            SYS_FRENAME => self.frename(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, packet.uid, packet.gid),
-            SYS_FSTAT => if packet.d >= mem::size_of::<Stat>() {
-                self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FSTATVFS => if packet.d >= mem::size_of::<StatVfs>() {
-                self.fstatvfs(packet.b, unsafe { &mut *(packet.c as *mut StatVfs) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FSYNC => self.fsync(packet.b),
-            SYS_FTRUNCATE => self.ftruncate(packet.b, packet.c),
-            SYS_FUTIMENS => if packet.d >= mem::size_of::<TimeSpec>() {
-                self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::<TimeSpec>()) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_CLOSE => self.close(packet.b),
-            _ => Err(Error::new(ENOSYS))
-        });
-    }
-
-    /* Scheme operations */
-    #[allow(unused_variables)]
-    fn open(&mut self, path: &[u8], flags: usize, uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(ENOENT))
-    }
-
-    #[allow(unused_variables)]
-    fn chmod(&mut self, path: &[u8], mode: u16, uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(ENOENT))
-    }
-
-    #[allow(unused_variables)]
-    fn rmdir(&mut self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(ENOENT))
-    }
-
-    #[allow(unused_variables)]
-    fn unlink(&mut self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(ENOENT))
-    }
-
-    /* Resource operations */
-    #[allow(unused_variables)]
-    fn dup(&mut self, old_id: usize, buf: &[u8]) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn read(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn write(&mut self, id: usize, buf: &[u8]) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn seek(&mut self, id: usize, pos: usize, whence: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fchmod(&mut self, id: usize, mode: u16) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fchown(&mut self, id: usize, uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fcntl(&mut self, id: usize, cmd: usize, arg: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fevent(&mut self, id: usize, flags: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fmap(&mut self, id: usize, offset: usize, size: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn frename(&mut self, id: usize, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fstat(&mut self, id: usize, stat: &mut Stat) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fstatvfs(&self, id: usize, stat: &mut StatVfs) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn fsync(&mut self, id: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn ftruncate(&mut self, id: usize, len: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn futimens(&mut self, id: usize, times: &[TimeSpec]) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-
-    #[allow(unused_variables)]
-    fn close(&mut self, id: usize) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-}

src/scheme/generate.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+set -e
+
+echo "Generating SchemeMut from Scheme"
+sed 's/trait Scheme/trait SchemeMut/' scheme.rs \
+| sed 's/\&self/\&mut self/g' \
+> scheme_mut.rs
+
+echo "Generating SchemeBlock from Scheme"
+sed 's/trait Scheme/trait SchemeBlock/' scheme.rs \
+| sed 's/fn handle(\&self, packet: \&mut Packet)/fn handle(\&self, packet: \&Packet) -> Option<usize>/' \
+| sed 's/packet.a = Error::mux(res);/res.map(Error::mux)/' \
+| sed 's/Result<usize>/Option<Result<usize>>/g' \
+| sed 's/Err(Error::new(\(.*\)))/Some(Err(Error::new(\1)))/g' \
+> scheme_block.rs
+
+echo "Generating SchemeBlockMut from SchemeBlock"
+sed 's/trait SchemeBlock/trait SchemeBlockMut/' scheme_block.rs \
+| sed 's/\&self/\&mut self/g' \
+> scheme_block_mut.rs

src/scheme/mod.rs

@@ -0,0 +1,9 @@
+pub use self::scheme::Scheme;
+pub use self::scheme_mut::SchemeMut;
+pub use self::scheme_block::SchemeBlock;
+pub use self::scheme_block_mut::SchemeBlockMut;
+
+mod scheme;
+mod scheme_mut;
+mod scheme_block;
+mod scheme_block_mut;

src/scheme/scheme.rs

@@ -0,0 +1,157 @@
+use core::{mem, slice};
+
+use data::*;
+use error::*;
+use number::*;
+
+pub trait Scheme {
+    fn handle(&self, packet: &mut Packet) {
+        let res = match packet.a {
+            SYS_OPEN => self.open(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d, packet.uid, packet.gid),
+            SYS_CHMOD => self.chmod(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d as u16, packet.uid, packet.gid),
+            SYS_RMDIR => self.rmdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
+            SYS_UNLINK => self.unlink(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
+
+            SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
+            SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_LSEEK => self.seek(packet.b, packet.c, packet.d),
+            SYS_FCHMOD => self.fchmod(packet.b, packet.c as u16),
+            SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
+            SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
+            SYS_FEVENT => self.fevent(packet.b, packet.c),
+            SYS_FMAP => self.fmap(packet.b, packet.c, packet.d),
+            SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
+            SYS_FRENAME => self.frename(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, packet.uid, packet.gid),
+            SYS_FSTAT => if packet.d >= mem::size_of::<Stat>() {
+                self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) })
+            } else {
+                Err(Error::new(EFAULT))
+            },
+            SYS_FSTATVFS => if packet.d >= mem::size_of::<StatVfs>() {
+                self.fstatvfs(packet.b, unsafe { &mut *(packet.c as *mut StatVfs) })
+            } else {
+                Err(Error::new(EFAULT))
+            },
+            SYS_FSYNC => self.fsync(packet.b),
+            SYS_FTRUNCATE => self.ftruncate(packet.b, packet.c),
+            SYS_FUTIMENS => if packet.d >= mem::size_of::<TimeSpec>() {
+                self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::<TimeSpec>()) })
+            } else {
+                Err(Error::new(EFAULT))
+            },
+            SYS_CLOSE => self.close(packet.b),
+            _ => Err(Error::new(ENOSYS))
+        };
+
+        packet.a = Error::mux(res);
+    }
+
+    /* Scheme operations */
+
+    #[allow(unused_variables)]
+    fn open(&self, path: &[u8], flags: usize, uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(ENOENT))
+    }
+
+    #[allow(unused_variables)]
+    fn chmod(&self, path: &[u8], mode: u16, uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(ENOENT))
+    }
+
+    #[allow(unused_variables)]
+    fn rmdir(&self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(ENOENT))
+    }
+
+    #[allow(unused_variables)]
+    fn unlink(&self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(ENOENT))
+    }
+
+    /* Resource operations */
+    #[allow(unused_variables)]
+    fn dup(&self, old_id: usize, buf: &[u8]) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn read(&self, id: usize, buf: &mut [u8]) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn write(&self, id: usize, buf: &[u8]) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn seek(&self, id: usize, pos: usize, whence: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fchmod(&self, id: usize, mode: u16) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fchown(&self, id: usize, uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fcntl(&self, id: usize, cmd: usize, arg: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fevent(&self, id: usize, flags: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fmap(&self, id: usize, offset: usize, size: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fpath(&self, id: usize, buf: &mut [u8]) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn frename(&self, id: usize, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fstat(&self, id: usize, stat: &mut Stat) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fstatvfs(&self, id: usize, stat: &mut StatVfs) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fsync(&self, id: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn ftruncate(&self, id: usize, len: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn futimens(&self, id: usize, times: &[TimeSpec]) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn close(&self, id: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+}

src/scheme/scheme_block.rs

@@ -0,0 +1,157 @@
+use core::{mem, slice};
+
+use data::*;
+use error::*;
+use number::*;
+
+pub trait SchemeBlock {
+    fn handle(&self, packet: &Packet) -> Option<usize> {
+        let res = match packet.a {
+            SYS_OPEN => self.open(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d, packet.uid, packet.gid),
+            SYS_CHMOD => self.chmod(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d as u16, packet.uid, packet.gid),
+            SYS_RMDIR => self.rmdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
+            SYS_UNLINK => self.unlink(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
+
+            SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
+            SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_LSEEK => self.seek(packet.b, packet.c, packet.d),
+            SYS_FCHMOD => self.fchmod(packet.b, packet.c as u16),
+            SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
+            SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
+            SYS_FEVENT => self.fevent(packet.b, packet.c),
+            SYS_FMAP => self.fmap(packet.b, packet.c, packet.d),
+            SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
+            SYS_FRENAME => self.frename(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, packet.uid, packet.gid),
+            SYS_FSTAT => if packet.d >= mem::size_of::<Stat>() {
+                self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) })
+            } else {
+                Some(Err(Error::new(EFAULT)))
+            },
+            SYS_FSTATVFS => if packet.d >= mem::size_of::<StatVfs>() {
+                self.fstatvfs(packet.b, unsafe { &mut *(packet.c as *mut StatVfs) })
+            } else {
+                Some(Err(Error::new(EFAULT)))
+            },
+            SYS_FSYNC => self.fsync(packet.b),
+            SYS_FTRUNCATE => self.ftruncate(packet.b, packet.c),
+            SYS_FUTIMENS => if packet.d >= mem::size_of::<TimeSpec>() {
+                self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::<TimeSpec>()) })
+            } else {
+                Some(Err(Error::new(EFAULT)))
+            },
+            SYS_CLOSE => self.close(packet.b),
+            _ => Some(Err(Error::new(ENOSYS)))
+        };
+
+        res.map(Error::mux)
+    }
+
+    /* Scheme operations */
+
+    #[allow(unused_variables)]
+    fn open(&self, path: &[u8], flags: usize, uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(ENOENT)))
+    }
+
+    #[allow(unused_variables)]
+    fn chmod(&self, path: &[u8], mode: u16, uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(ENOENT)))
+    }
+
+    #[allow(unused_variables)]
+    fn rmdir(&self, path: &[u8], uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(ENOENT)))
+    }
+
+    #[allow(unused_variables)]
+    fn unlink(&self, path: &[u8], uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(ENOENT)))
+    }
+
+    /* Resource operations */
+    #[allow(unused_variables)]
+    fn dup(&self, old_id: usize, buf: &[u8]) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn read(&self, id: usize, buf: &mut [u8]) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn write(&self, id: usize, buf: &[u8]) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn seek(&self, id: usize, pos: usize, whence: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fchmod(&self, id: usize, mode: u16) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fchown(&self, id: usize, uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fcntl(&self, id: usize, cmd: usize, arg: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fevent(&self, id: usize, flags: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fmap(&self, id: usize, offset: usize, size: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fpath(&self, id: usize, buf: &mut [u8]) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn frename(&self, id: usize, path: &[u8], uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fstat(&self, id: usize, stat: &mut Stat) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fstatvfs(&self, id: usize, stat: &mut StatVfs) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fsync(&self, id: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn ftruncate(&self, id: usize, len: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn futimens(&self, id: usize, times: &[TimeSpec]) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn close(&self, id: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+}

src/scheme/scheme_block_mut.rs

@@ -0,0 +1,157 @@
+use core::{mem, slice};
+
+use data::*;
+use error::*;
+use number::*;
+
+pub trait SchemeBlockMut {
+    fn handle(&mut self, packet: &Packet) -> Option<usize> {
+        let res = match packet.a {
+            SYS_OPEN => self.open(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d, packet.uid, packet.gid),
+            SYS_CHMOD => self.chmod(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d as u16, packet.uid, packet.gid),
+            SYS_RMDIR => self.rmdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
+            SYS_UNLINK => self.unlink(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
+
+            SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
+            SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_LSEEK => self.seek(packet.b, packet.c, packet.d),
+            SYS_FCHMOD => self.fchmod(packet.b, packet.c as u16),
+            SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
+            SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
+            SYS_FEVENT => self.fevent(packet.b, packet.c),
+            SYS_FMAP => self.fmap(packet.b, packet.c, packet.d),
+            SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
+            SYS_FRENAME => self.frename(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, packet.uid, packet.gid),
+            SYS_FSTAT => if packet.d >= mem::size_of::<Stat>() {
+                self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) })
+            } else {
+                Some(Err(Error::new(EFAULT)))
+            },
+            SYS_FSTATVFS => if packet.d >= mem::size_of::<StatVfs>() {
+                self.fstatvfs(packet.b, unsafe { &mut *(packet.c as *mut StatVfs) })
+            } else {
+                Some(Err(Error::new(EFAULT)))
+            },
+            SYS_FSYNC => self.fsync(packet.b),
+            SYS_FTRUNCATE => self.ftruncate(packet.b, packet.c),
+            SYS_FUTIMENS => if packet.d >= mem::size_of::<TimeSpec>() {
+                self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::<TimeSpec>()) })
+            } else {
+                Some(Err(Error::new(EFAULT)))
+            },
+            SYS_CLOSE => self.close(packet.b),
+            _ => Some(Err(Error::new(ENOSYS)))
+        };
+
+        res.map(Error::mux)
+    }
+
+    /* Scheme operations */
+
+    #[allow(unused_variables)]
+    fn open(&mut self, path: &[u8], flags: usize, uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(ENOENT)))
+    }
+
+    #[allow(unused_variables)]
+    fn chmod(&mut self, path: &[u8], mode: u16, uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(ENOENT)))
+    }
+
+    #[allow(unused_variables)]
+    fn rmdir(&mut self, path: &[u8], uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(ENOENT)))
+    }
+
+    #[allow(unused_variables)]
+    fn unlink(&mut self, path: &[u8], uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(ENOENT)))
+    }
+
+    /* Resource operations */
+    #[allow(unused_variables)]
+    fn dup(&mut self, old_id: usize, buf: &[u8]) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn read(&mut self, id: usize, buf: &mut [u8]) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn write(&mut self, id: usize, buf: &[u8]) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn seek(&mut self, id: usize, pos: usize, whence: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fchmod(&mut self, id: usize, mode: u16) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fchown(&mut self, id: usize, uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fcntl(&mut self, id: usize, cmd: usize, arg: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fevent(&mut self, id: usize, flags: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fmap(&mut self, id: usize, offset: usize, size: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn frename(&mut self, id: usize, path: &[u8], uid: u32, gid: u32) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fstat(&mut self, id: usize, stat: &mut Stat) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fstatvfs(&mut self, id: usize, stat: &mut StatVfs) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn fsync(&mut self, id: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn ftruncate(&mut self, id: usize, len: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn futimens(&mut self, id: usize, times: &[TimeSpec]) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+
+    #[allow(unused_variables)]
+    fn close(&mut self, id: usize) -> Option<Result<usize>> {
+        Some(Err(Error::new(EBADF)))
+    }
+}

src/scheme/scheme_mut.rs

@@ -0,0 +1,157 @@
+use core::{mem, slice};
+
+use data::*;
+use error::*;
+use number::*;
+
+pub trait SchemeMut {
+    fn handle(&mut self, packet: &mut Packet) {
+        let res = match packet.a {
+            SYS_OPEN => self.open(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d, packet.uid, packet.gid),
+            SYS_CHMOD => self.chmod(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d as u16, packet.uid, packet.gid),
+            SYS_RMDIR => self.rmdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
+            SYS_UNLINK => self.unlink(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
+
+            SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
+            SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_LSEEK => self.seek(packet.b, packet.c, packet.d),
+            SYS_FCHMOD => self.fchmod(packet.b, packet.c as u16),
+            SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
+            SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
+            SYS_FEVENT => self.fevent(packet.b, packet.c),
+            SYS_FMAP => self.fmap(packet.b, packet.c, packet.d),
+            SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
+            SYS_FRENAME => self.frename(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, packet.uid, packet.gid),
+            SYS_FSTAT => if packet.d >= mem::size_of::<Stat>() {
+                self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) })
+            } else {
+                Err(Error::new(EFAULT))
+            },
+            SYS_FSTATVFS => if packet.d >= mem::size_of::<StatVfs>() {
+                self.fstatvfs(packet.b, unsafe { &mut *(packet.c as *mut StatVfs) })
+            } else {
+                Err(Error::new(EFAULT))
+            },
+            SYS_FSYNC => self.fsync(packet.b),
+            SYS_FTRUNCATE => self.ftruncate(packet.b, packet.c),
+            SYS_FUTIMENS => if packet.d >= mem::size_of::<TimeSpec>() {
+                self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::<TimeSpec>()) })
+            } else {
+                Err(Error::new(EFAULT))
+            },
+            SYS_CLOSE => self.close(packet.b),
+            _ => Err(Error::new(ENOSYS))
+        };
+
+        packet.a = Error::mux(res);
+    }
+
+    /* Scheme operations */
+
+    #[allow(unused_variables)]
+    fn open(&mut self, path: &[u8], flags: usize, uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(ENOENT))
+    }
+
+    #[allow(unused_variables)]
+    fn chmod(&mut self, path: &[u8], mode: u16, uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(ENOENT))
+    }
+
+    #[allow(unused_variables)]
+    fn rmdir(&mut self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(ENOENT))
+    }
+
+    #[allow(unused_variables)]
+    fn unlink(&mut self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(ENOENT))
+    }
+
+    /* Resource operations */
+    #[allow(unused_variables)]
+    fn dup(&mut self, old_id: usize, buf: &[u8]) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn read(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn write(&mut self, id: usize, buf: &[u8]) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn seek(&mut self, id: usize, pos: usize, whence: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fchmod(&mut self, id: usize, mode: u16) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fchown(&mut self, id: usize, uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fcntl(&mut self, id: usize, cmd: usize, arg: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fevent(&mut self, id: usize, flags: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fmap(&mut self, id: usize, offset: usize, size: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn frename(&mut self, id: usize, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fstat(&mut self, id: usize, stat: &mut Stat) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fstatvfs(&mut self, id: usize, stat: &mut StatVfs) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn fsync(&mut self, id: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn ftruncate(&mut self, id: usize, len: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn futimens(&mut self, id: usize, times: &[TimeSpec]) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
+    #[allow(unused_variables)]
+    fn close(&mut self, id: usize) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+}