| // Copyright 2016 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // +build fuchsia |
| |
| // Package fdio provides unix-style IO, implementing Zircon's "system/ulib/fdio" |
| package fdio |
| |
| import ( |
| "syscall/zx" |
| "syscall/zx/io" |
| ) |
| |
| // MaxUnderlyingHandles is the maximum number of handles which are |
| // necessary to implement any FDIO object. |
| const MaxUnderlyingHandles = 2 |
| |
| // FDIO provides classic unix-style IO over various transports |
| type FDIO interface { |
| Handles() []zx.Handle |
| |
| Clone() (FDIO, error) |
| Close() error |
| |
| Sync() error |
| GetAttr() (io.NodeAttributes, error) |
| SetAttr(flags uint32, attr io.NodeAttributes) error |
| Ioctl(op uint32, max uint64, in []byte, handles []zx.Handle) ([]byte, []zx.Handle, error) |
| |
| Read(data []byte) (int, error) |
| ReadAt(data []byte, off int64) (int, error) |
| Write(data []byte) (int, error) |
| WriteAt(data []byte, off int64) (int, error) |
| Seek(offset int64, whence int) (int64, error) |
| Truncate(length uint64) error |
| |
| Open(path string, flags uint32, mode uint32) (FDIO, error) |
| Link(oldpath, newpath string) error |
| Rename(oldpath, newpath string) error |
| Unlink(path string) error |
| ReadDirents(max uint64) ([]byte, error) |
| Rewind() error |
| } |
| |
| type Vtype uint32 |
| |
| // bit-compatible with POSIX stat |
| const ( |
| VtypeMask Vtype = 0170000 |
| VtypeSock Vtype = 0140000 |
| VtypeLink Vtype = 0120000 |
| VtypeFile Vtype = 0100000 |
| VtypeBdev Vtype = 0060000 |
| VtypeDir Vtype = 0040000 |
| VtypeCdev Vtype = 0020000 |
| VtypePipe Vtype = 0010000 |
| |
| VtypeISUID Vtype = 0004000 |
| VtypeISGID Vtype = 0002000 |
| VtypeISVTX Vtype = 0001000 |
| VtypeIRWXU Vtype = 0000700 |
| VtypeIRUSR Vtype = 0000400 |
| VtypeIWUSR Vtype = 0000200 |
| VtypeIXUSR Vtype = 0000100 |
| VtypeIRWXG Vtype = 0000070 |
| VtypeIRGRP Vtype = 0000040 |
| VtypeIWGRP Vtype = 0000020 |
| VtypeIXGRP Vtype = 0000010 |
| VtypeIRWXO Vtype = 0000007 |
| VtypeIROTH Vtype = 0000004 |
| VtypeIWOTH Vtype = 0000002 |
| VtypeIXOTH Vtype = 0000001 |
| ) |
| |
| const ( |
| HandleTypeFileDescriptor = 0x30 |
| HandleTypeRemote = 0x32 |
| HandleTypeLogger = 0x35 |
| HandleTypeSocket = 0x36 |
| ) |
