Bug fixes for fcntl and o_cloexec

Add fcntl to schemes
Fix debug: hang

src/scheme/sys/iostat.rs

@@ -28,7 +28,7 @@ pub fn resource() -> Result<Vec<u8>> {
             for (fd, f) in row.2.iter().enumerate() {
                 let file = match *f {
                     None => continue,
-                    Some(file) => file
+                    Some(ref file) => file.clone()
                 };
 
                 let scheme = {

src/scheme/sys/mod.rs

@@ -14,6 +14,7 @@ mod cpu;
 mod exe;
 mod iostat;
 mod scheme;
+mod scheme_num;
 //mod interrupt;
 //mod log;
 //mod test;
@@ -43,6 +44,7 @@ impl SysScheme {
         files.insert(b"exe", Box::new(move || exe::resource()));
         files.insert(b"iostat", Box::new(move || iostat::resource()));
         files.insert(b"scheme", Box::new(move || scheme::resource()));
+        files.insert(b"scheme_num", Box::new(move || scheme_num::resource()));
         //files.insert(b"interrupt", Box::new(move || interrupt::resource()));
         //files.insert(b"log", Box::new(move || log::resource()));
         //files.insert(b"test", Box::new(move || test::resource()));

src/scheme/sys/scheme.rs

@@ -15,7 +15,7 @@ pub fn resource() -> Result<Vec<u8>> {
     let mut data = Vec::new();
 
     let schemes = scheme::schemes();
-    for (name, _scheme_lock) in schemes.iter_name(scheme_ns) {
+    for (name, _scheme_id) in schemes.iter_name(scheme_ns) {
         data.extend_from_slice(name);
         data.push(b'\n');
     }

src/scheme/sys/scheme_num.rs

@@ -0,0 +1,25 @@
+use collections::Vec;
+
+use context;
+use scheme;
+use syscall::error::{Error, ESRCH, Result};
+
+pub fn resource() -> Result<Vec<u8>> {
+    let scheme_ns = {
+        let contexts = context::contexts();
+        let context_lock = contexts.current().ok_or(Error::new(ESRCH))?;
+        let context = context_lock.read();
+        context.ens
+    };
+
+    let mut data = Vec::new();
+
+    let schemes = scheme::schemes();
+    for (name, &scheme_id) in schemes.iter_name(scheme_ns) {
+        data.extend_from_slice(format!("{:>4}: ", scheme_id.into()).as_bytes());
+        data.extend_from_slice(name);
+        data.push(b'\n');
+    }
+
+    Ok(data)
+}