1 files changed, 32 insertions, 0 deletions
diff --git a/third_party/rust/cubeb/examples/common/mod.rs b/third_party/rust/cubeb/examples/common/mod.rs
new file mode 100644
index 0000000000..a577a8fc06
--- /dev/null
+++ b/third_party/rust/cubeb/examples/common/mod.rs
@@ -0,0 +1,32 @@
+use cubeb::{Context, Result};
+use std::env;
+use std::ffi::CString;
+use std::io::{self, Write};
+
+pub fn init<T: Into<Vec<u8>>>(ctx_name: T) -> Result<Context> {
+    let backend = match env::var("CUBEB_BACKEND") {
+        Ok(s) => Some(s),
+        Err(_) => None,
+    };
+
+    let ctx_name = CString::new(ctx_name).unwrap();
+    let ctx = Context::init(Some(ctx_name.as_c_str()), None);
+    if let Ok(ref ctx) = ctx {
+        if let Some(ref backend) = backend {
+            let ctx_backend = ctx.backend_id();
+            if backend != ctx_backend {
+                let stderr = io::stderr();
+                let mut handle = stderr.lock();
+
+                writeln!(
+                    handle,
+                    "Requested backend `{}', got `{}'",
+                    backend, ctx_backend
+                )
+                .unwrap();
+            }
+        }
+    }
+
+    ctx
+}