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// Copyright 2018 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package linux
// Inotify events observable by userspace. These directly correspond to
// filesystem operations and there may only be a single of them per inotify
// event read from an inotify fd.
const (
// IN_ACCESS indicates a file was accessed.
IN_ACCESS = 0x00000001
// IN_MODIFY indicates a file was modified.
IN_MODIFY = 0x00000002
// IN_ATTRIB indicates a watch target's metadata changed.
IN_ATTRIB = 0x00000004
// IN_CLOSE_WRITE indicates a writable file was closed.
IN_CLOSE_WRITE = 0x00000008
// IN_CLOSE_NOWRITE indicates a non-writable file was closed.
IN_CLOSE_NOWRITE = 0x00000010
// IN_OPEN indicates a file was opened.
IN_OPEN = 0x00000020
// IN_MOVED_FROM indicates a file was moved from X.
IN_MOVED_FROM = 0x00000040
// IN_MOVED_TO indicates a file was moved to Y.
IN_MOVED_TO = 0x00000080
// IN_CREATE indicates a file was created in a watched directory.
IN_CREATE = 0x00000100
// IN_DELETE indicates a file was deleted in a watched directory.
IN_DELETE = 0x00000200
// IN_DELETE_SELF indicates a watch target itself was deleted.
IN_DELETE_SELF = 0x00000400
// IN_MOVE_SELF indicates a watch target itself was moved.
IN_MOVE_SELF = 0x00000800
// IN_ALL_EVENTS is a mask for all observable userspace events.
IN_ALL_EVENTS = 0x00000fff
)
// Inotify control events. These may be present in their own events, or ORed
// with other observable events.
const (
// IN_UNMOUNT indicates the backing filesystem was unmounted.
IN_UNMOUNT = 0x00002000
// IN_Q_OVERFLOW indicates the event queued overflowed.
IN_Q_OVERFLOW = 0x00004000
// IN_IGNORED indicates a watch was removed, either implicitly or through
// inotify_rm_watch(2).
IN_IGNORED = 0x00008000
// IN_ISDIR indicates the subject of an event was a directory.
IN_ISDIR = 0x40000000
)
// Feature flags for inotify_add_watch(2).
const (
// IN_ONLYDIR indicates that a path should be watched only if it's a
// directory.
IN_ONLYDIR = 0x01000000
// IN_DONT_FOLLOW indicates that the watch path shouldn't be resolved if
// it's a symlink.
IN_DONT_FOLLOW = 0x02000000
// IN_EXCL_UNLINK indicates events to this watch from unlinked objects
// should be filtered out.
IN_EXCL_UNLINK = 0x04000000
// IN_MASK_ADD indicates the provided mask should be ORed into any existing
// watch on the provided path.
IN_MASK_ADD = 0x20000000
// IN_ONESHOT indicates the watch should be removed after one event.
IN_ONESHOT = 0x80000000
)
// Feature flags for inotify_init1(2).
const (
// IN_CLOEXEC is an alias for O_CLOEXEC. It indicates that the inotify
// fd should be closed on exec(2) and friends.
IN_CLOEXEC = 0x00080000
// IN_NONBLOCK is an alias for O_NONBLOCK. It indicates I/O syscall on the
// inotify fd should not block.
IN_NONBLOCK = 0x00000800
)
// ALL_INOTIFY_BITS contains all the bits for all possible inotify events. It's
// defined in the Linux source at "include/linux/inotify.h".
const ALL_INOTIFY_BITS = IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE |
IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM | IN_MOVED_TO | IN_CREATE |
IN_DELETE | IN_DELETE_SELF | IN_MOVE_SELF | IN_UNMOUNT | IN_Q_OVERFLOW |
IN_IGNORED | IN_ONLYDIR | IN_DONT_FOLLOW | IN_EXCL_UNLINK | IN_MASK_ADD |
IN_ISDIR | IN_ONESHOT
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