log into file (#357)

[bytom/vapor.git] / vendor / github.com / lestrrat-go / file-rotatelogs / interface.go

diff --git a/vendor/github.com/lestrrat-go/file-rotatelogs/interface.go b/vendor/github.com/lestrrat-go/file-rotatelogs/interface.go
new file mode 100644 (file)
index 0000000..fcd0f58
--- /dev/null
+++ b/vendor/github.com/lestrrat-go/file-rotatelogs/interface.go
@@ -0,0 +1,72 @@
+package rotatelogs
+
+import (
+       "os"
+       "sync"
+       "time"
+
+       strftime "github.com/lestrrat-go/strftime"
+)
+
+type Handler interface {
+       Handle(Event)
+}
+
+type HandlerFunc func(Event)
+
+type Event interface {
+       Type() EventType
+}
+
+type EventType int
+
+const (
+       InvalidEventType EventType = iota
+       FileRotatedEventType
+)
+
+type FileRotatedEvent struct {
+       prev    string // previous filename
+       current string // current, new filename
+}
+
+// RotateLogs represents a log file that gets
+// automatically rotated as you write to it.
+type RotateLogs struct {
+       clock         Clock
+       curFn         string
+       curBaseFn     string
+       globPattern   string
+       generation    int
+       linkName      string
+       maxAge        time.Duration
+       mutex         sync.RWMutex
+       eventHandler  Handler
+       outFh         *os.File
+       pattern       *strftime.Strftime
+       rotationTime  time.Duration
+       rotationCount uint
+       forceNewFile  bool
+}
+
+// Clock is the interface used by the RotateLogs
+// object to determine the current time
+type Clock interface {
+       Now() time.Time
+}
+type clockFn func() time.Time
+
+// UTC is an object satisfying the Clock interface, which
+// returns the current time in UTC
+var UTC = clockFn(func() time.Time { return time.Now().UTC() })
+
+// Local is an object satisfying the Clock interface, which
+// returns the current time in the local timezone
+var Local = clockFn(time.Now)
+
+// Option is used to pass optional arguments to
+// the RotateLogs constructor
+type Option interface {
+       Name() string
+       Value() interface{}
+}