1 files changed, 59 insertions, 0 deletions
diff --git a/third_party/rust/cubeb/src/log.rs b/third_party/rust/cubeb/src/log.rs
new file mode 100644
index 0000000000..eb0170d947
--- /dev/null
+++ b/third_party/rust/cubeb/src/log.rs
@@ -0,0 +1,59 @@
+// Copyright © 2017-2018 Mozilla Foundation
+//
+// This program is made available under an ISC-style license.  See the
+// accompanying file LICENSE for details.
+
+#[macro_export]
+macro_rules! cubeb_log_internal {
+    ($level: expr, $msg: expr) => {
+        #[allow(unused_unsafe)]
+        unsafe {
+            if $level <= $crate::ffi::g_cubeb_log_level.into() {
+                cubeb_log_internal!(__INTERNAL__ $msg);
+            }
+        }
+    };
+    ($level: expr, $fmt: expr, $($arg: expr),+) => {
+        #[allow(unused_unsafe)]
+        unsafe {
+            if $level <= $crate::ffi::g_cubeb_log_level.into() {
+                cubeb_log_internal!(__INTERNAL__ format!($fmt, $($arg),*));
+            }
+        }
+    };
+    (__INTERNAL__ $msg: expr) => {
+        if let Some(log_callback) = $crate::ffi::g_cubeb_log_callback {
+            let cstr = ::std::ffi::CString::new(format!("{}:{}: {}\n", file!(), line!(), $msg)).unwrap();
+            log_callback(cstr.as_ptr());
+        }
+    }
+}
+
+#[macro_export]
+macro_rules! cubeb_logv {
+    ($msg: expr) => (cubeb_log_internal!($crate::LogLevel::Verbose, $msg));
+    ($fmt: expr, $($arg: expr),+) => (cubeb_log_internal!($crate::LogLevel::Verbose, $fmt, $($arg),*));
+}
+
+#[macro_export]
+macro_rules! cubeb_log {
+    ($msg: expr) => (cubeb_log_internal!($crate::LogLevel::Normal, $msg));
+    ($fmt: expr, $($arg: expr),+) => (cubeb_log_internal!($crate::LogLevel::Normal, $fmt, $($arg),*));
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn test_normal_logging() {
+        cubeb_log!("This is log at normal level");
+        cubeb_log!("{} Formatted log", 1);
+        cubeb_log!("{} Formatted {} log {}", 1, 2, 3);
+    }
+
+    #[test]
+    fn test_verbose_logging() {
+        cubeb_logv!("This is a log at verbose level");
+        cubeb_logv!("{} Formatted log", 1);
+        cubeb_logv!("{} Formatted {} log {}", 1, 2, 3);
+    }
+}