ringlogger: introduce basic file ring logging

1 files changed, 31 insertions, 0 deletions

diff --git a/ringlogger/global.go b/ringlogger/global.go
new file mode 100644
index 00000000..da79b6de
--- /dev/null
+++ b/ringlogger/global.go
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ */
+
+package ringlogger
+
+import (
+	"golang.zx2c4.com/wireguard/windows/conf"
+	"log"
+	"path"
+)
+
+var Global *Ringlogger
+
+func InitGlobalLogger(tag string) error {
+	if Global != nil {
+		return nil
+	}
+	root, err := conf.RootDirectory()
+	if err != nil {
+		return err
+	}
+	Global, err = NewRinglogger(path.Join(root, "log.bin"), tag)
+	if err != nil {
+		return err
+	}
+	log.SetOutput(Global)
+	log.SetFlags(0)
+	return nil
+}