85 lines
2.1 KiB
Go
85 lines
2.1 KiB
Go
// Copyright 2018 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package linux
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// Filesystem types used in statfs(2).
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//
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// See linux/magic.h.
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const (
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ANON_INODE_FS_MAGIC = 0x09041934
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DEVPTS_SUPER_MAGIC = 0x00001cd1
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OVERLAYFS_SUPER_MAGIC = 0x794c7630
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PIPEFS_MAGIC = 0x50495045
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PROC_SUPER_MAGIC = 0x9fa0
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RAMFS_MAGIC = 0x09041934
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SOCKFS_MAGIC = 0x534F434B
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SYSFS_MAGIC = 0x62656572
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TMPFS_MAGIC = 0x01021994
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V9FS_MAGIC = 0x01021997
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)
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// Filesystem path limits, from uapi/linux/limits.h.
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const (
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NAME_MAX = 255
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PATH_MAX = 4096
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)
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// Statfs is struct statfs, from uapi/asm-generic/statfs.h.
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type Statfs struct {
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// Type is one of the filesystem magic values, defined above.
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Type uint64
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// BlockSize is the data block size.
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BlockSize int64
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// Blocks is the number of data blocks in use.
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Blocks uint64
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// BlocksFree is the number of free blocks.
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BlocksFree uint64
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// BlocksAvailable is the number of blocks free for use by
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// unprivileged users.
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BlocksAvailable uint64
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// Files is the number of used file nodes on the filesystem.
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Files uint64
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// FileFress is the number of free file nodes on the filesystem.
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FilesFree uint64
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// FSID is the filesystem ID.
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FSID [2]int32
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// NameLength is the maximum file name length.
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NameLength uint64
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// FragmentSize is equivalent to BlockSize.
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FragmentSize int64
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// Flags is the set of filesystem mount flags.
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Flags uint64
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// Spare is unused.
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Spare [4]uint64
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}
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// Sync_file_range flags, from include/uapi/linux/fs.h
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const (
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SYNC_FILE_RANGE_WAIT_BEFORE = 1
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SYNC_FILE_RANGE_WRITE = 2
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SYNC_FILE_RANGE_WAIT_AFTER = 4
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)
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