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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.
// +build windows
package notify
// eventmask uses ei to create a new event which contains internal flags used by
// notify package logic. If one of FileAction* masks is detected, this function
// adds corresponding FileNotifyChange* values. This allows non registered
// FileAction* events to be passed on.
func eventmask(ei EventInfo, extra Event) (e Event) {
if e = ei.Event() | extra; e&fileActionAll != 0 {
if ev, ok := ei.(*event); ok {
switch ev.ftype {
case fTypeFile:
e |= FileNotifyChangeFileName
case fTypeDirectory:
e |= FileNotifyChangeDirName
case fTypeUnknown:
e |= fileNotifyChangeModified
}
return e &^ fileActionAll
}
}
return
}
// matches reports a match only when:
//
// - for user events, when event is present in the given set
// - for internal events, when additionally both event and set have omit bit set
//
// Internal events must not be sent to user channels and vice versa.
func matches(set, event Event) bool {
return (set&omit)^(event&omit) == 0 && (set&event == event || set&fileNotifyChangeModified&event != 0)
}
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