mobile: add SetVerbosity (#3492)

mobile/logger.go

+// Copyright 2016 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package geth
+
+import (
+	"github.com/ethereum/go-ethereum/logger/glog"
+)
+
+// SetVerbosity sets the global verbosity level (between 0 and 6 - see logger/verbosity.go).
+func SetVerbosity(level int) {
+	glog.SetV(level)
+}