forked from cerc-io/plugeth
119 lines
4.2 KiB
Go
119 lines
4.2 KiB
Go
// Copyright (c) 2014-2015 The Notify Authors. All rights reserved.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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// +build windows
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package notify
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import (
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"os"
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"path/filepath"
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"syscall"
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)
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// Platform independent event values.
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const (
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osSpecificCreate Event = 1 << (20 + iota)
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osSpecificRemove
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osSpecificWrite
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osSpecificRename
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// recursive is used to distinguish recursive eventsets from non-recursive ones
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recursive
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// omit is used for dispatching internal events; only those events are sent
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// for which both the event and the watchpoint has omit in theirs event sets.
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omit
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// dirmarker TODO(pknap)
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dirmarker
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)
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// ReadDirectoryChangesW filters
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// On Windows the following events can be passed to Watch. A different set of
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// events (see actions below) are received on the channel passed to Watch.
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// For more information refer to
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// https://msdn.microsoft.com/en-us/library/windows/desktop/aa365465(v=vs.85).aspx
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const (
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FileNotifyChangeFileName = Event(syscall.FILE_NOTIFY_CHANGE_FILE_NAME)
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FileNotifyChangeDirName = Event(syscall.FILE_NOTIFY_CHANGE_DIR_NAME)
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FileNotifyChangeAttributes = Event(syscall.FILE_NOTIFY_CHANGE_ATTRIBUTES)
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FileNotifyChangeSize = Event(syscall.FILE_NOTIFY_CHANGE_SIZE)
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FileNotifyChangeLastWrite = Event(syscall.FILE_NOTIFY_CHANGE_LAST_WRITE)
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FileNotifyChangeLastAccess = Event(syscall.FILE_NOTIFY_CHANGE_LAST_ACCESS)
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FileNotifyChangeCreation = Event(syscall.FILE_NOTIFY_CHANGE_CREATION)
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FileNotifyChangeSecurity = Event(syscallFileNotifyChangeSecurity)
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)
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const (
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fileNotifyChangeAll = 0x17f // logical sum of all FileNotifyChange* events.
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fileNotifyChangeModified = fileNotifyChangeAll &^ (FileNotifyChangeFileName | FileNotifyChangeDirName)
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)
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// according to: http://msdn.microsoft.com/en-us/library/windows/desktop/aa365465(v=vs.85).aspx
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// this flag should be declared in: http://golang.org/src/pkg/syscall/ztypes_windows.go
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const syscallFileNotifyChangeSecurity = 0x00000100
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// ReadDirectoryChangesW actions
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// The following events are returned on the channel passed to Watch, but cannot
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// be passed to Watch itself (see filters above). You can find a table showing
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// the relation between actions and filteres at
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// https://github.com/rjeczalik/notify/issues/10#issuecomment-66179535
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// The msdn documentation on actions is part of
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// https://msdn.microsoft.com/en-us/library/windows/desktop/aa364391(v=vs.85).aspx
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const (
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FileActionAdded = Event(syscall.FILE_ACTION_ADDED) << 12
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FileActionRemoved = Event(syscall.FILE_ACTION_REMOVED) << 12
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FileActionModified = Event(syscall.FILE_ACTION_MODIFIED) << 14
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FileActionRenamedOldName = Event(syscall.FILE_ACTION_RENAMED_OLD_NAME) << 15
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FileActionRenamedNewName = Event(syscall.FILE_ACTION_RENAMED_NEW_NAME) << 16
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)
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const fileActionAll = 0x7f000 // logical sum of all FileAction* events.
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var osestr = map[Event]string{
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FileNotifyChangeFileName: "notify.FileNotifyChangeFileName",
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FileNotifyChangeDirName: "notify.FileNotifyChangeDirName",
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FileNotifyChangeAttributes: "notify.FileNotifyChangeAttributes",
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FileNotifyChangeSize: "notify.FileNotifyChangeSize",
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FileNotifyChangeLastWrite: "notify.FileNotifyChangeLastWrite",
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FileNotifyChangeLastAccess: "notify.FileNotifyChangeLastAccess",
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FileNotifyChangeCreation: "notify.FileNotifyChangeCreation",
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FileNotifyChangeSecurity: "notify.FileNotifyChangeSecurity",
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FileActionAdded: "notify.FileActionAdded",
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FileActionRemoved: "notify.FileActionRemoved",
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FileActionModified: "notify.FileActionModified",
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FileActionRenamedOldName: "notify.FileActionRenamedOldName",
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FileActionRenamedNewName: "notify.FileActionRenamedNewName",
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}
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const (
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fTypeUnknown uint8 = iota
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fTypeFile
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fTypeDirectory
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)
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// TODO(ppknap) : doc.
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type event struct {
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pathw []uint16
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name string
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ftype uint8
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action uint32
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filter uint32
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e Event
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}
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func (e *event) Event() Event { return e.e }
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func (e *event) Path() string { return filepath.Join(syscall.UTF16ToString(e.pathw), e.name) }
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func (e *event) Sys() interface{} { return e.ftype }
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func (e *event) isDir() (bool, error) {
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if e.ftype != fTypeUnknown {
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return e.ftype == fTypeDirectory, nil
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}
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fi, err := os.Stat(e.Path())
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if err != nil {
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return false, err
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}
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return fi.IsDir(), nil
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}
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