TUN-3470: Replace in-house logger calls with zerolog

vendor/github.com/rs/zerolog/globals.go

@@ -0,0 +1,114 @@
+package zerolog
+
+import (
+	"strconv"
+	"sync/atomic"
+	"time"
+)
+
+const (
+	// TimeFormatUnix defines a time format that makes time fields to be
+	// serialized as Unix timestamp integers.
+	TimeFormatUnix = ""
+
+	// TimeFormatUnixMs defines a time format that makes time fields to be
+	// serialized as Unix timestamp integers in milliseconds.
+	TimeFormatUnixMs = "UNIXMS"
+
+	// TimeFormatUnixMicro defines a time format that makes time fields to be
+	// serialized as Unix timestamp integers in microseconds.
+	TimeFormatUnixMicro = "UNIXMICRO"
+)
+
+var (
+	// TimestampFieldName is the field name used for the timestamp field.
+	TimestampFieldName = "time"
+
+	// LevelFieldName is the field name used for the level field.
+	LevelFieldName = "level"
+
+	// LevelFieldMarshalFunc allows customization of global level field marshaling
+	LevelFieldMarshalFunc = func(l Level) string {
+		return l.String()
+	}
+
+	// MessageFieldName is the field name used for the message field.
+	MessageFieldName = "message"
+
+	// ErrorFieldName is the field name used for error fields.
+	ErrorFieldName = "error"
+
+	// CallerFieldName is the field name used for caller field.
+	CallerFieldName = "caller"
+
+	// CallerSkipFrameCount is the number of stack frames to skip to find the caller.
+	CallerSkipFrameCount = 2
+
+	// CallerMarshalFunc allows customization of global caller marshaling
+	CallerMarshalFunc = func(file string, line int) string {
+		return file + ":" + strconv.Itoa(line)
+	}
+
+	// ErrorStackFieldName is the field name used for error stacks.
+	ErrorStackFieldName = "stack"
+
+	// ErrorStackMarshaler extract the stack from err if any.
+	ErrorStackMarshaler func(err error) interface{}
+
+	// ErrorMarshalFunc allows customization of global error marshaling
+	ErrorMarshalFunc = func(err error) interface{} {
+		return err
+	}
+
+	// TimeFieldFormat defines the time format of the Time field type. If set to
+	// TimeFormatUnix, TimeFormatUnixMs or TimeFormatUnixMicro, the time is formatted as an UNIX
+	// timestamp as integer.
+	TimeFieldFormat = time.RFC3339
+
+	// TimestampFunc defines the function called to generate a timestamp.
+	TimestampFunc = time.Now
+
+	// DurationFieldUnit defines the unit for time.Duration type fields added
+	// using the Dur method.
+	DurationFieldUnit = time.Millisecond
+
+	// DurationFieldInteger renders Dur fields as integer instead of float if
+	// set to true.
+	DurationFieldInteger = false
+
+	// ErrorHandler is called whenever zerolog fails to write an event on its
+	// output. If not set, an error is printed on the stderr. This handler must
+	// be thread safe and non-blocking.
+	ErrorHandler func(err error)
+)
+
+var (
+	gLevel          = new(int32)
+	disableSampling = new(int32)
+)
+
+// SetGlobalLevel sets the global override for log level. If this
+// values is raised, all Loggers will use at least this value.
+//
+// To globally disable logs, set GlobalLevel to Disabled.
+func SetGlobalLevel(l Level) {
+	atomic.StoreInt32(gLevel, int32(l))
+}
+
+// GlobalLevel returns the current global log level
+func GlobalLevel() Level {
+	return Level(atomic.LoadInt32(gLevel))
+}
+
+// DisableSampling will disable sampling in all Loggers if true.
+func DisableSampling(v bool) {
+	var i int32
+	if v {
+		i = 1
+	}
+	atomic.StoreInt32(disableSampling, i)
+}
+
+func samplingDisabled() bool {
+	return atomic.LoadInt32(disableSampling) == 1
+}