WIP: Schemes

kernel/scheme/debug.rs

@@ -0,0 +1,33 @@
+use core::str;
+use syscall::Result;
+use super::Scheme;
+
+pub struct DebugScheme;
+
+impl Scheme for DebugScheme {
+    fn open(&mut self, path: &[u8], flags: usize) -> Result<usize> {
+        println!("DebugScheme::open: {}", unsafe { str::from_utf8_unchecked(path) });
+        Ok(0)
+    }
+
+    /// Read the file `number` into the `buffer`
+    ///
+    /// Returns the number of bytes read
+    fn read(&mut self, file: usize, buffer: &mut [u8]) -> Result<usize> {
+        Ok(0)
+    }
+
+    /// Write the `buffer` to the `file`
+    ///
+    /// Returns the number of bytes written
+    fn write(&mut self, file: usize, buffer: &[u8]) -> Result<usize> {
+        //TODO: Write bytes, do not convert to str
+        print!("{}", unsafe { str::from_utf8_unchecked(buffer) });
+        Ok(buffer.len())
+    }
+
+    /// Close the file `number`
+    fn close(&mut self, file: usize) -> Result<()> {
+        Ok(())
+    }
+}