1 files changed, 33 insertions, 0 deletions
diff --git a/ctr-std/src/io/print.rs b/ctr-std/src/io/print.rs
new file mode 100644
index 0000000..8a5851b
--- /dev/null
+++ b/ctr-std/src/io/print.rs
@@ -0,0 +1,33 @@
+use fmt;
+use io::{self, Write};
+
+// NOTE: We're just gonna use the spin mutex until we figure out how to properly
+// implement mutexes with ctrulib functions
+use spin::Mutex;
+use libc;
+
+pub static STDOUT: Mutex<StdoutRaw> = Mutex::new(StdoutRaw(()));
+
+pub struct StdoutRaw(());
+
+#[stable(feature = "3ds", since = "1.0.0")]
+impl Write for StdoutRaw {
+    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
+        unsafe {
+            // devkitPro's version of write(2) fails if zero bytes are written,
+            // so let's just exit if the buffer size is zero
+            if buf.is_empty() {
+                return Ok(buf.len())
+            }
+            libc::write(libc::STDOUT_FILENO, buf.as_ptr() as *const _, buf.len());
+            Ok(buf.len())
+        }
+    }
+
+    fn flush(&mut self) -> io::Result<()> { Ok(()) }
+}
+
+#[doc(hidden)]
+pub fn _print(args: fmt::Arguments) {
+    STDOUT.lock().write_fmt(args).unwrap();
+}