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This commit is contained in:
Darien Raymond 2017-12-19 22:02:57 +01:00
parent 49b270152a
commit 3b45a8d4cc
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GPG Key ID: 7251FFA14BB18169
1 changed files with 6 additions and 0 deletions
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6
common/log/log.go
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@ -7,10 +7,12 @@ import (
"v2ray.com/core/common/serial" "v2ray.com/core/common/serial"
) )
// Message is the interface for all log messages.
type Message interface { type Message interface {
String() string String() string
} }
// Handler is the interface for log handler.
type Handler interface { type Handler interface {
Handle(msg Message) Handle(msg Message)
} }
@ -19,11 +21,13 @@ type noOpHandler byte
func (noOpHandler) Handle(msg Message) {} func (noOpHandler) Handle(msg Message) {}
// GeneralMessage is a general log message that can contain all kind of content.
type GeneralMessage struct { type GeneralMessage struct {
Severity Severity Severity Severity
Content interface{} Content interface{}
} }
// String implements Message.
func (m *GeneralMessage) String() string { func (m *GeneralMessage) String() string {
return serial.Concat("[", m.Severity, "]: ", m.Content) return serial.Concat("[", m.Severity, "]: ", m.Content)
} }
@ -32,6 +36,7 @@ func (s Severity) SevererThan(another Severity) bool {
return s <= another return s <= another
} }
// Record writes a message into log stream.
func Record(msg Message) { func Record(msg Message) {
h := (*Handler)(atomic.LoadPointer(&logHandler)) h := (*Handler)(atomic.LoadPointer(&logHandler))
(*h).Handle(msg) (*h).Handle(msg)
@ -41,6 +46,7 @@ var (
logHandler unsafe.Pointer logHandler unsafe.Pointer
) )
// RegisterHandler register a new handler as current log handler. Previous registered handler will be discarded.
func RegisterHandler(handler Handler) { func RegisterHandler(handler Handler) {
if handler == nil { if handler == nil {
panic("Log handler is nil") panic("Log handler is nil")