Require UTF-8 for context name

src/scheme/sys/block.rs

@@ -1,7 +1,6 @@
 use alloc::string::String;
 use alloc::vec::Vec;
 use core::fmt::Write;
-use core::str;
 
 use crate::context;
 use crate::syscall::error::Result;
@@ -21,7 +20,7 @@ pub fn resource() -> Result<Vec<u8>> {
 
         for row in rows.iter() {
             let id: usize = row.0.into();
-            let name = str::from_utf8(&row.1).unwrap_or(".");
+            let name = &row.1;
 
             let _ = writeln!(string, "{}: {}", id, name);
 

src/scheme/sys/context.rs

@@ -1,6 +1,5 @@
 use alloc::string::String;
 use alloc::vec::Vec;
-use core::str;
 
 use crate::context;
 use crate::syscall::error::Result;
@@ -107,9 +106,6 @@ pub fn resource() -> Result<Vec<u8>> {
                 format!("{} B", memory)
             };
 
-            let name_bytes = context.name.read();
-            let name = str::from_utf8(&name_bytes).unwrap_or("");
-
             string.push_str(&format!("{:<6}{:<6}{:<6}{:<6}{:<6}{:<6}{:<6}{:<6}{:<6}{:<6}{:<6}{:<8}{:<8}{}\n",
                                context.id.into(),
                                context.pgid.into(),
@@ -124,7 +120,7 @@ pub fn resource() -> Result<Vec<u8>> {
                                cpu_string,
                                ticks_string,
                                memory_string,
-                               name));
+                               *context.name.read()));
         }
     }
 

src/scheme/sys/exe.rs

@@ -1,4 +1,7 @@
-use alloc::vec::Vec;
+use alloc::{
+    boxed::Box,
+    vec::Vec,
+};
 
 use crate::context;
 use crate::syscall::error::{Error, ESRCH, Result};
@@ -9,7 +12,8 @@ pub fn resource() -> Result<Vec<u8>> {
         let context_lock = contexts.current().ok_or(Error::new(ESRCH))?;
         let context = context_lock.read();
         let name = context.name.read();
-        name.clone().into_vec()
+        let name_bytes: Box<[u8]> = name.clone().into();
+        name_bytes.into_vec()
     };
     Ok(name)
 }

src/scheme/sys/iostat.rs

@@ -22,7 +22,7 @@ pub fn resource() -> Result<Vec<u8>> {
 
         for row in rows.iter() {
             let id: usize = row.0.into();
-            let name = str::from_utf8(&row.1).unwrap_or(".");
+            let name = &row.1;
             let _ = writeln!(string, "{}: {}", id, name);
 
             for (fd, f) in row.2.iter().enumerate() {

src/scheme/sys/syscall.rs

@@ -1,7 +1,6 @@
 use alloc::string::String;
 use alloc::vec::Vec;
 use core::fmt::Write;
-use core::str;
 
 use crate::context;
 use crate::syscall;
@@ -22,7 +21,7 @@ pub fn resource() -> Result<Vec<u8>> {
 
         for row in rows.iter() {
             let id: usize = row.0.into();
-            let name = str::from_utf8(&row.1).unwrap_or(".");
+            let name = &row.1;
 
             let _ = writeln!(string, "{}: {}", id, name);