go-ethereum/vendor/github.com/rjeczalik/notify/tree.go

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// Copyright (c) 2014-2015 The Notify Authors. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
package notify
const buffer = 128
type tree interface {
Watch(string, chan<- EventInfo, ...Event) error
Stop(chan<- EventInfo)
Close() error
}
func newTree() tree {
c := make(chan EventInfo, buffer)
w := newWatcher(c)
if rw, ok := w.(recursiveWatcher); ok {
return newRecursiveTree(rw, c)
}
return newNonrecursiveTree(w, c, make(chan EventInfo, buffer))
}