Initial commitHEADmain

1 files changed, 36 insertions, 0 deletions

diff --git a/src/log.rs b/src/log.rs
new file mode 100644
index 0000000..306a0d5
--- /dev/null
+++ b/src/log.rs
@@ -0,0 +1,36 @@
+use alloc::string::ToString;
+use log::{LevelFilter, Log, Metadata, Record, SetLoggerError, set_logger, set_max_level};
+
+mod tortuise {
+	use log::Level;
+
+	#[link(wasm_import_module = "tortuise")]
+	unsafe extern "C" {
+		pub unsafe fn log(severity: Level, message: *const u8, length: usize);
+	}
+}
+
+static LOG: TortuiseLogger = TortuiseLogger;
+
+pub struct TortuiseLogger;
+
+impl TortuiseLogger {
+	pub fn init() -> Result<(), SetLoggerError> {
+		set_logger(&LOG).map(|()| set_max_level(LevelFilter::Trace))
+	}
+}
+
+impl Log for TortuiseLogger {
+	fn enabled(&self, _: &Metadata) -> bool {
+		true
+	}
+
+	fn log(&self, record: &Record) {
+		let message = record.args().to_string();
+		unsafe {
+			tortuise::log(record.level(), message.as_ptr(), message.len());
+		}
+	}
+
+	fn flush(&self) {}
+}