vendor: update buildkit to 2943a0838

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/google.golang.org/grpc/internal/channelz/logging.go

@@ -0,0 +1,100 @@
+/*
+ *
+ * Copyright 2020 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package channelz
+
+import (
+	"fmt"
+
+	"google.golang.org/grpc/internal/grpclog"
+)
+
+// Info logs through grpclog.Info and adds a trace event if channelz is on.
+func Info(id int64, args ...interface{}) {
+	if IsOn() {
+		AddTraceEvent(id, 1, &TraceEventDesc{
+			Desc:     fmt.Sprint(args...),
+			Severity: CtINFO,
+		})
+	} else {
+		grpclog.InfoDepth(1, args...)
+	}
+}
+
+// Infof logs through grpclog.Infof and adds a trace event if channelz is on.
+func Infof(id int64, format string, args ...interface{}) {
+	msg := fmt.Sprintf(format, args...)
+	if IsOn() {
+		AddTraceEvent(id, 1, &TraceEventDesc{
+			Desc:     msg,
+			Severity: CtINFO,
+		})
+	} else {
+		grpclog.InfoDepth(1, msg)
+	}
+}
+
+// Warning logs through grpclog.Warning and adds a trace event if channelz is on.
+func Warning(id int64, args ...interface{}) {
+	if IsOn() {
+		AddTraceEvent(id, 1, &TraceEventDesc{
+			Desc:     fmt.Sprint(args...),
+			Severity: CtWarning,
+		})
+	} else {
+		grpclog.WarningDepth(1, args...)
+	}
+}
+
+// Warningf logs through grpclog.Warningf and adds a trace event if channelz is on.
+func Warningf(id int64, format string, args ...interface{}) {
+	msg := fmt.Sprintf(format, args...)
+	if IsOn() {
+		AddTraceEvent(id, 1, &TraceEventDesc{
+			Desc:     msg,
+			Severity: CtWarning,
+		})
+	} else {
+		grpclog.WarningDepth(1, msg)
+	}
+}
+
+// Error logs through grpclog.Error and adds a trace event if channelz is on.
+func Error(id int64, args ...interface{}) {
+	if IsOn() {
+		AddTraceEvent(id, 1, &TraceEventDesc{
+			Desc:     fmt.Sprint(args...),
+			Severity: CtError,
+		})
+	} else {
+		grpclog.ErrorDepth(1, args...)
+	}
+}
+
+// Errorf logs through grpclog.Errorf and adds a trace event if channelz is on.
+func Errorf(id int64, format string, args ...interface{}) {
+	msg := fmt.Sprintf(format, args...)
+	if IsOn() {
+		AddTraceEvent(id, 1, &TraceEventDesc{
+			Desc:     msg,
+			Severity: CtError,
+		})
+	} else {
+		grpclog.ErrorDepth(1, msg)
+	}
+}