style(go-pkg): rename pkg

monitorpkg/monitor.go

@@ -0,0 +1,64 @@
+package monitorpkg
+
+import (
+	"errors"
+	"sync"
+	"time"
+)
+
+type (
+	Monitor interface {
+		AddFile(path string, spec string, handler func()) error
+		DelFile(path string) error
+	}
+
+	myMonitor struct {
+		sync.RWMutex
+		fs Files
+	}
+
+	Files map[string]*myFile
+)
+
+func (m *myMonitor) init() {
+	m.fs = make(map[string]*myFile)
+}
+
+func NewMonitor() Monitor {
+	mon := new(myMonitor)
+	mon.init()
+	return mon
+}
+
+func (m *myMonitor) AddFile(path string, spec string, handler func()) error {
+	m.Lock()
+	defer m.Unlock()
+	if handler == nil {
+		return errors.New("handler cannot be nil")
+	}
+	if _, ok := m.fs[path]; ok {
+		return errors.New("already exist")
+	}
+	f := &myFile{
+		spec:     spec,
+		filePath: path,
+		updateOn: time.Now().Unix(),
+		handle:   handler,
+	}
+	m.fs[path] = f
+	f.init()
+	return nil
+}
+
+func (m *myMonitor) DelFile(path string) error {
+	m.Lock()
+	defer m.Unlock()
+	f, ok := m.fs[path]
+	if !ok {
+		return nil
+	}
+	f.c.Stop()
+	f.c.Remove(f.id)
+	delete(m.fs, path)
+	return nil
+}