2 files changed, 14 insertions, 7 deletions
diff --git a/src/libstd/rt/mod.rs b/src/libstd/rt/mod.rs
index 8713cf05a47..bbf1cf0d9b7 100644
--- a/src/libstd/rt/mod.rs
+++ b/src/libstd/rt/mod.rs
@@ -63,11 +63,9 @@ Several modules in `core` are clients of `rt`:
 use cell::Cell;
 use clone::Clone;
 use container::Container;
-use from_str::FromStr;
 use iter::Times;
 use iterator::IteratorUtil;
-use option::{Some, None};
-use os;
+use option::Some;
 use ptr::RawPtr;
 use rt::sched::{Scheduler, Coroutine, Shutdown};
 use rt::sleeper_list::SleeperList;
@@ -223,10 +221,7 @@ pub fn run(main: ~fn()) -> int {
 
     static DEFAULT_ERROR_CODE: int = 101;
 
-    let nthreads = match os::getenv("RUST_THREADS") {
-        Some(nstr) => FromStr::from_str(nstr).get(),
-        None => util::num_cpus()
-    };
+    let nthreads = util::default_sched_threads();
 
     // The shared list of sleeping schedulers. Schedulers wake each other
     // occassionally to do new work.
diff --git a/src/libstd/rt/util.rs b/src/libstd/rt/util.rs
index 904b2f8bbb9..5219ae1d540 100644
--- a/src/libstd/rt/util.rs
+++ b/src/libstd/rt/util.rs
@@ -9,8 +9,11 @@
 // except according to those terms.
 
 use container::Container;
+use from_str::FromStr;
 use iterator::IteratorUtil;
 use libc;
+use option::{Some, None};
+use os;
 use str::StrSlice;
 
 /// Get the number of cores available
@@ -24,6 +27,15 @@ pub fn num_cpus() -> uint {
     }
 }
 
+/// Get's the number of scheduler threads requested by the environment
+/// either `RUST_THREADS` or `num_cpus`.
+pub fn default_sched_threads() -> uint {
+    match os::getenv("RUST_THREADS") {
+        Some(nstr) => FromStr::from_str(nstr).get(),
+        None => num_cpus()
+    }
+}
+
 pub fn dumb_println(s: &str) {
     use io::WriterUtil;
     let dbg = ::libc::STDERR_FILENO as ::io::fd_t;