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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
import (
"os"
"path/filepath"
"syscall"
)
// Platform independent event values.
const (
osSpecificCreate Event = 1 << (20 + iota)
osSpecificRemove
osSpecificWrite
osSpecificRename
// recursive is used to distinguish recursive eventsets from non-recursive ones
recursive
// omit is used for dispatching internal events; only those events are sent
// for which both the event and the watchpoint has omit in theirs event sets.
omit
// dirmarker TODO(pknap)
dirmarker
)
// ReadDirectoryChangesW filters.
const (
FileNotifyChangeFileName = Event(syscall.FILE_NOTIFY_CHANGE_FILE_NAME)
FileNotifyChangeDirName = Event(syscall.FILE_NOTIFY_CHANGE_DIR_NAME)
FileNotifyChangeAttributes = Event(syscall.FILE_NOTIFY_CHANGE_ATTRIBUTES)
FileNotifyChangeSize = Event(syscall.FILE_NOTIFY_CHANGE_SIZE)
FileNotifyChangeLastWrite = Event(syscall.FILE_NOTIFY_CHANGE_LAST_WRITE)
FileNotifyChangeLastAccess = Event(syscall.FILE_NOTIFY_CHANGE_LAST_ACCESS)
FileNotifyChangeCreation = Event(syscall.FILE_NOTIFY_CHANGE_CREATION)
FileNotifyChangeSecurity = Event(syscallFileNotifyChangeSecurity)
)
const (
fileNotifyChangeAll = 0x17f // logical sum of all FileNotifyChange* events.
fileNotifyChangeModified = fileNotifyChangeAll &^ (FileNotifyChangeFileName | FileNotifyChangeDirName)
)
// according to: http://msdn.microsoft.com/en-us/library/windows/desktop/aa365465(v=vs.85).aspx
// this flag should be declared in: http://golang.org/src/pkg/syscall/ztypes_windows.go
const syscallFileNotifyChangeSecurity = 0x00000100
// ReadDirectoryChangesW actions.
const (
FileActionAdded = Event(syscall.FILE_ACTION_ADDED) << 12
FileActionRemoved = Event(syscall.FILE_ACTION_REMOVED) << 12
FileActionModified = Event(syscall.FILE_ACTION_MODIFIED) << 14
FileActionRenamedOldName = Event(syscall.FILE_ACTION_RENAMED_OLD_NAME) << 15
FileActionRenamedNewName = Event(syscall.FILE_ACTION_RENAMED_NEW_NAME) << 16
)
const fileActionAll = 0x7f000 // logical sum of all FileAction* events.
var osestr = map[Event]string{
FileNotifyChangeFileName: "notify.FileNotifyChangeFileName",
FileNotifyChangeDirName: "notify.FileNotifyChangeDirName",
FileNotifyChangeAttributes: "notify.FileNotifyChangeAttributes",
FileNotifyChangeSize: "notify.FileNotifyChangeSize",
FileNotifyChangeLastWrite: "notify.FileNotifyChangeLastWrite",
FileNotifyChangeLastAccess: "notify.FileNotifyChangeLastAccess",
FileNotifyChangeCreation: "notify.FileNotifyChangeCreation",
FileNotifyChangeSecurity: "notify.FileNotifyChangeSecurity",
FileActionAdded: "notify.FileActionAdded",
FileActionRemoved: "notify.FileActionRemoved",
FileActionModified: "notify.FileActionModified",
FileActionRenamedOldName: "notify.FileActionRenamedOldName",
FileActionRenamedNewName: "notify.FileActionRenamedNewName",
}
const (
fTypeUnknown uint8 = iota
fTypeFile
fTypeDirectory
)
// TODO(ppknap) : doc.
type event struct {
pathw []uint16
name string
ftype uint8
action uint32
filter uint32
e Event
}
func (e *event) Event() Event { return e.e }
func (e *event) Path() string { return filepath.Join(syscall.UTF16ToString(e.pathw), e.name) }
func (e *event) Sys() interface{} { return e.ftype }
func (e *event) isDir() (bool, error) {
if e.ftype != fTypeUnknown {
return e.ftype == fTypeDirectory, nil
}
fi, err := os.Stat(e.Path())
if err != nil {
return false, err
}
return fi.IsDir(), nil
}
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