mirror of https://github.com/shirou/gopsutil
Merge branch 'master' of https://github.com/shirou/gopsutil
WAKAYAMA Shirou
10 years ago
commit
9569e2389c
@ -0,0 +1,634 @@
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package binary implements simple translation between numbers and byte
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// sequences and encoding and decoding of varints.
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//
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// Numbers are translated by reading and writing fixed-size values.
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// A fixed-size value is either a fixed-size arithmetic
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// type (int8, uint8, int16, float32, complex64, ...)
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// or an array or struct containing only fixed-size values.
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//
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// The varint functions encode and decode single integer values using
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// a variable-length encoding; smaller values require fewer bytes.
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// For a specification, see
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// http://code.google.com/apis/protocolbuffers/docs/encoding.html.
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//
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// This package favors simplicity over efficiency. Clients that require
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// high-performance serialization, especially for large data structures,
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// should look at more advanced solutions such as the encoding/gob
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// package or protocol buffers.
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package disk
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import (
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"errors"
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"io"
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"math"
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"reflect"
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)
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// A ByteOrder specifies how to convert byte sequences into
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// 16-, 32-, or 64-bit unsigned integers.
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type ByteOrder interface {
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Uint16([]byte) uint16
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Uint32([]byte) uint32
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Uint64([]byte) uint64
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PutUint16([]byte, uint16)
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PutUint32([]byte, uint32)
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PutUint64([]byte, uint64)
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String() string
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}
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// LittleEndian is the little-endian implementation of ByteOrder.
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var LittleEndian littleEndian
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// BigEndian is the big-endian implementation of ByteOrder.
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var BigEndian bigEndian
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type littleEndian struct{}
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func (littleEndian) Uint16(b []byte) uint16 { return uint16(b[0]) | uint16(b[1])<<8 }
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func (littleEndian) PutUint16(b []byte, v uint16) {
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b[0] = byte(v)
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b[1] = byte(v >> 8)
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}
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func (littleEndian) Uint32(b []byte) uint32 {
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return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
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}
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func (littleEndian) PutUint32(b []byte, v uint32) {
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b[0] = byte(v)
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b[1] = byte(v >> 8)
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b[2] = byte(v >> 16)
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b[3] = byte(v >> 24)
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}
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func (littleEndian) Uint64(b []byte) uint64 {
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return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
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uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
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|
}
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|
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|
func (littleEndian) PutUint64(b []byte, v uint64) {
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b[0] = byte(v)
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b[1] = byte(v >> 8)
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|
b[2] = byte(v >> 16)
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|
b[3] = byte(v >> 24)
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|
b[4] = byte(v >> 32)
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|
b[5] = byte(v >> 40)
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|
b[6] = byte(v >> 48)
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|
b[7] = byte(v >> 56)
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|
}
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|
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|
func (littleEndian) String() string { return "LittleEndian" }
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func (littleEndian) GoString() string { return "binary.LittleEndian" }
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type bigEndian struct{}
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func (bigEndian) Uint16(b []byte) uint16 { return uint16(b[1]) | uint16(b[0])<<8 }
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|
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|
func (bigEndian) PutUint16(b []byte, v uint16) {
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|
b[0] = byte(v >> 8)
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|
b[1] = byte(v)
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|
}
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|
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|
func (bigEndian) Uint32(b []byte) uint32 {
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|
return uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
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|
}
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|
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|
func (bigEndian) PutUint32(b []byte, v uint32) {
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|
b[0] = byte(v >> 24)
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|
b[1] = byte(v >> 16)
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|
b[2] = byte(v >> 8)
|
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|
b[3] = byte(v)
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|
}
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|
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|
func (bigEndian) Uint64(b []byte) uint64 {
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|
return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
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|
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
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|
}
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|
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|
func (bigEndian) PutUint64(b []byte, v uint64) {
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|
b[0] = byte(v >> 56)
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|
b[1] = byte(v >> 48)
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|
b[2] = byte(v >> 40)
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|
b[3] = byte(v >> 32)
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|
b[4] = byte(v >> 24)
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|
b[5] = byte(v >> 16)
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|
b[6] = byte(v >> 8)
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|
b[7] = byte(v)
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|
}
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|
func (bigEndian) String() string { return "BigEndian" }
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|
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|
func (bigEndian) GoString() string { return "binary.BigEndian" }
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|
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|
// Read reads structured binary data from r into data.
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|
// Data must be a pointer to a fixed-size value or a slice
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|
// of fixed-size values.
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// Bytes read from r are decoded using the specified byte order
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|
// and written to successive fields of the data.
|
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|
// When reading into structs, the field data for fields with
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|
// blank (_) field names is skipped; i.e., blank field names
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|
// may be used for padding.
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|
// When reading into a struct, all non-blank fields must be exported.
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|
func Read(r io.Reader, order ByteOrder, data interface{}) error {
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|
// Fast path for basic types and slices.
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|
if n := intDataSize(data); n != 0 {
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|
var b [8]byte
|
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|
var bs []byte
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|
if n > len(b) {
|
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|
bs = make([]byte, n)
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|
} else {
|
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|
bs = b[:n]
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|
}
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|
if _, err := io.ReadFull(r, bs); err != nil {
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|
return err
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|
}
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||||||
|
switch data := data.(type) {
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|
case *int8:
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|
*data = int8(b[0])
|
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|
case *uint8:
|
||||||
|
*data = b[0]
|
||||||
|
case *int16:
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|
*data = int16(order.Uint16(bs))
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|
case *uint16:
|
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|
*data = order.Uint16(bs)
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|
case *int32:
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|
*data = int32(order.Uint32(bs))
|
||||||
|
case *uint32:
|
||||||
|
*data = order.Uint32(bs)
|
||||||
|
case *int64:
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||||||
|
*data = int64(order.Uint64(bs))
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||||||
|
case *uint64:
|
||||||
|
*data = order.Uint64(bs)
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|
case []int8:
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||||||
|
for i, x := range bs { // Easier to loop over the input for 8-bit values.
|
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|
data[i] = int8(x)
|
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|
}
|
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|
case []uint8:
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|
copy(data, bs)
|
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|
case []int16:
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|
for i := range data {
|
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|
data[i] = int16(order.Uint16(bs[2*i:]))
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|
}
|
||||||
|
case []uint16:
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||||||
|
for i := range data {
|
||||||
|
data[i] = order.Uint16(bs[2*i:])
|
||||||
|
}
|
||||||
|
case []int32:
|
||||||
|
for i := range data {
|
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|
data[i] = int32(order.Uint32(bs[4*i:]))
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||||||
|
}
|
||||||
|
case []uint32:
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||||||
|
for i := range data {
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||||||
|
data[i] = order.Uint32(bs[4*i:])
|
||||||
|
}
|
||||||
|
case []int64:
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||||||
|
for i := range data {
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||||||
|
data[i] = int64(order.Uint64(bs[8*i:]))
|
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|
}
|
||||||
|
case []uint64:
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||||||
|
for i := range data {
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||||||
|
data[i] = order.Uint64(bs[8*i:])
|
||||||
|
}
|
||||||
|
}
|
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|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// Fallback to reflect-based decoding.
|
||||||
|
v := reflect.ValueOf(data)
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|
size := -1
|
||||||
|
switch v.Kind() {
|
||||||
|
case reflect.Ptr:
|
||||||
|
v = v.Elem()
|
||||||
|
size = dataSize(v)
|
||||||
|
case reflect.Slice:
|
||||||
|
size = dataSize(v)
|
||||||
|
}
|
||||||
|
if size < 0 {
|
||||||
|
return errors.New("binary.Read: invalid type " + reflect.TypeOf(data).String())
|
||||||
|
}
|
||||||
|
d := &decoder{order: order, buf: make([]byte, size)}
|
||||||
|
if _, err := io.ReadFull(r, d.buf); err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
d.value(v)
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// Write writes the binary representation of data into w.
|
||||||
|
// Data must be a fixed-size value or a slice of fixed-size
|
||||||
|
// values, or a pointer to such data.
|
||||||
|
// Bytes written to w are encoded using the specified byte order
|
||||||
|
// and read from successive fields of the data.
|
||||||
|
// When writing structs, zero values are written for fields
|
||||||
|
// with blank (_) field names.
|
||||||
|
func Write(w io.Writer, order ByteOrder, data interface{}) error {
|
||||||
|
// Fast path for basic types and slices.
|
||||||
|
if n := intDataSize(data); n != 0 {
|
||||||
|
var b [8]byte
|
||||||
|
var bs []byte
|
||||||
|
if n > len(b) {
|
||||||
|
bs = make([]byte, n)
|
||||||
|
} else {
|
||||||
|
bs = b[:n]
|
||||||
|
}
|
||||||
|
switch v := data.(type) {
|
||||||
|
case *int8:
|
||||||
|
bs = b[:1]
|
||||||
|
b[0] = byte(*v)
|
||||||
|
case int8:
|
||||||
|
bs = b[:1]
|
||||||
|
b[0] = byte(v)
|
||||||
|
case []int8:
|
||||||
|
for i, x := range v {
|
||||||
|
bs[i] = byte(x)
|
||||||
|
}
|
||||||
|
case *uint8:
|
||||||
|
bs = b[:1]
|
||||||
|
b[0] = *v
|
||||||
|
case uint8:
|
||||||
|
bs = b[:1]
|
||||||
|
b[0] = byte(v)
|
||||||
|
case []uint8:
|
||||||
|
bs = v
|
||||||
|
case *int16:
|
||||||
|
bs = b[:2]
|
||||||
|
order.PutUint16(bs, uint16(*v))
|
||||||
|
case int16:
|
||||||
|
bs = b[:2]
|
||||||
|
order.PutUint16(bs, uint16(v))
|
||||||
|
case []int16:
|
||||||
|
for i, x := range v {
|
||||||
|
order.PutUint16(bs[2*i:], uint16(x))
|
||||||
|
}
|
||||||
|
case *uint16:
|
||||||
|
bs = b[:2]
|
||||||
|
order.PutUint16(bs, *v)
|
||||||
|
case uint16:
|
||||||
|
bs = b[:2]
|
||||||
|
order.PutUint16(bs, v)
|
||||||
|
case []uint16:
|
||||||
|
for i, x := range v {
|
||||||
|
order.PutUint16(bs[2*i:], x)
|
||||||
|
}
|
||||||
|
case *int32:
|
||||||
|
bs = b[:4]
|
||||||
|
order.PutUint32(bs, uint32(*v))
|
||||||
|
case int32:
|
||||||
|
bs = b[:4]
|
||||||
|
order.PutUint32(bs, uint32(v))
|
||||||
|
case []int32:
|
||||||
|
for i, x := range v {
|
||||||
|
order.PutUint32(bs[4*i:], uint32(x))
|
||||||
|
}
|
||||||
|
case *uint32:
|
||||||
|
bs = b[:4]
|
||||||
|
order.PutUint32(bs, *v)
|
||||||
|
case uint32:
|
||||||
|
bs = b[:4]
|
||||||
|
order.PutUint32(bs, v)
|
||||||
|
case []uint32:
|
||||||
|
for i, x := range v {
|
||||||
|
order.PutUint32(bs[4*i:], x)
|
||||||
|
}
|
||||||
|
case *int64:
|
||||||
|
bs = b[:8]
|
||||||
|
order.PutUint64(bs, uint64(*v))
|
||||||
|
case int64:
|
||||||
|
bs = b[:8]
|
||||||
|
order.PutUint64(bs, uint64(v))
|
||||||
|
case []int64:
|
||||||
|
for i, x := range v {
|
||||||
|
order.PutUint64(bs[8*i:], uint64(x))
|
||||||
|
}
|
||||||
|
case *uint64:
|
||||||
|
bs = b[:8]
|
||||||
|
order.PutUint64(bs, *v)
|
||||||
|
case uint64:
|
||||||
|
bs = b[:8]
|
||||||
|
order.PutUint64(bs, v)
|
||||||
|
case []uint64:
|
||||||
|
for i, x := range v {
|
||||||
|
order.PutUint64(bs[8*i:], x)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
_, err := w.Write(bs)
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Fallback to reflect-based encoding.
|
||||||
|
v := reflect.Indirect(reflect.ValueOf(data))
|
||||||
|
size := dataSize(v)
|
||||||
|
if size < 0 {
|
||||||
|
return errors.New("binary.Write: invalid type " + reflect.TypeOf(data).String())
|
||||||
|
}
|
||||||
|
buf := make([]byte, size)
|
||||||
|
e := &encoder{order: order, buf: buf}
|
||||||
|
e.value(v)
|
||||||
|
_, err := w.Write(buf)
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Size returns how many bytes Write would generate to encode the value v, which
|
||||||
|
// must be a fixed-size value or a slice of fixed-size values, or a pointer to such data.
|
||||||
|
// If v is neither of these, Size returns -1.
|
||||||
|
func Size(v interface{}) int {
|
||||||
|
return dataSize(reflect.Indirect(reflect.ValueOf(v)))
|
||||||
|
}
|
||||||
|
|
||||||
|
// dataSize returns the number of bytes the actual data represented by v occupies in memory.
|
||||||
|
// For compound structures, it sums the sizes of the elements. Thus, for instance, for a slice
|
||||||
|
// it returns the length of the slice times the element size and does not count the memory
|
||||||
|
// occupied by the header. If the type of v is not acceptable, dataSize returns -1.
|
||||||
|
func dataSize(v reflect.Value) int {
|
||||||
|
if v.Kind() == reflect.Slice {
|
||||||
|
if s := sizeof(v.Type().Elem()); s >= 0 {
|
||||||
|
return s * v.Len()
|
||||||
|
}
|
||||||
|
return -1
|
||||||
|
}
|
||||||
|
return sizeof(v.Type())
|
||||||
|
}
|
||||||
|
|
||||||
|
// sizeof returns the size >= 0 of variables for the given type or -1 if the type is not acceptable.
|
||||||
|
func sizeof(t reflect.Type) int {
|
||||||
|
switch t.Kind() {
|
||||||
|
case reflect.Array:
|
||||||
|
if s := sizeof(t.Elem()); s >= 0 {
|
||||||
|
return s * t.Len()
|
||||||
|
}
|
||||||
|
|
||||||
|
case reflect.Struct:
|
||||||
|
sum := 0
|
||||||
|
for i, n := 0, t.NumField(); i < n; i++ {
|
||||||
|
s := sizeof(t.Field(i).Type)
|
||||||
|
if s < 0 {
|
||||||
|
return -1
|
||||||
|
}
|
||||||
|
sum += s
|
||||||
|
}
|
||||||
|
return sum
|
||||||
|
|
||||||
|
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64,
|
||||||
|
reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
|
||||||
|
reflect.Float32, reflect.Float64, reflect.Complex64, reflect.Complex128, reflect.Ptr:
|
||||||
|
return int(t.Size())
|
||||||
|
}
|
||||||
|
|
||||||
|
return -1
|
||||||
|
}
|
||||||
|
|
||||||
|
type coder struct {
|
||||||
|
order ByteOrder
|
||||||
|
buf []byte
|
||||||
|
}
|
||||||
|
|
||||||
|
type decoder coder
|
||||||
|
type encoder coder
|
||||||
|
|
||||||
|
func (d *decoder) uint8() uint8 {
|
||||||
|
x := d.buf[0]
|
||||||
|
d.buf = d.buf[1:]
|
||||||
|
return x
|
||||||
|
}
|
||||||
|
|
||||||
|
func (e *encoder) uint8(x uint8) {
|
||||||
|
e.buf[0] = x
|
||||||
|
e.buf = e.buf[1:]
|
||||||
|
}
|
||||||
|
|
||||||
|
func (d *decoder) uint16() uint16 {
|
||||||
|
x := d.order.Uint16(d.buf[0:2])
|
||||||
|
d.buf = d.buf[2:]
|
||||||
|
return x
|
||||||
|
}
|
||||||
|
|
||||||
|
func (e *encoder) uint16(x uint16) {
|
||||||
|
e.order.PutUint16(e.buf[0:2], x)
|
||||||
|
e.buf = e.buf[2:]
|
||||||
|
}
|
||||||
|
|
||||||
|
func (d *decoder) uint32() uint32 {
|
||||||
|
x := d.order.Uint32(d.buf[0:4])
|
||||||
|
d.buf = d.buf[4:]
|
||||||
|
return x
|
||||||
|
}
|
||||||
|
|
||||||
|
func (e *encoder) uint32(x uint32) {
|
||||||
|
e.order.PutUint32(e.buf[0:4], x)
|
||||||
|
e.buf = e.buf[4:]
|
||||||
|
}
|
||||||
|
|
||||||
|
func (d *decoder) uint64() uint64 {
|
||||||
|
x := d.order.Uint64(d.buf[0:8])
|
||||||
|
d.buf = d.buf[8:]
|
||||||
|
return x
|
||||||
|
}
|
||||||
|
|
||||||
|
func (e *encoder) uint64(x uint64) {
|
||||||
|
e.order.PutUint64(e.buf[0:8], x)
|
||||||
|
e.buf = e.buf[8:]
|
||||||
|
}
|
||||||
|
|
||||||
|
func (d *decoder) int8() int8 { return int8(d.uint8()) }
|
||||||
|
|
||||||
|
func (e *encoder) int8(x int8) { e.uint8(uint8(x)) }
|
||||||
|
|
||||||
|
func (d *decoder) int16() int16 { return int16(d.uint16()) }
|
||||||
|
|
||||||
|
func (e *encoder) int16(x int16) { e.uint16(uint16(x)) }
|
||||||
|
|
||||||
|
func (d *decoder) int32() int32 { return int32(d.uint32()) }
|
||||||
|
|
||||||
|
func (e *encoder) int32(x int32) { e.uint32(uint32(x)) }
|
||||||
|
|
||||||
|
func (d *decoder) int64() int64 { return int64(d.uint64()) }
|
||||||
|
|
||||||
|
func (e *encoder) int64(x int64) { e.uint64(uint64(x)) }
|
||||||
|
|
||||||
|
func (d *decoder) value(v reflect.Value) {
|
||||||
|
switch v.Kind() {
|
||||||
|
case reflect.Array:
|
||||||
|
l := v.Len()
|
||||||
|
for i := 0; i < l; i++ {
|
||||||
|
d.value(v.Index(i))
|
||||||
|
}
|
||||||
|
|
||||||
|
case reflect.Struct:
|
||||||
|
t := v.Type()
|
||||||
|
l := v.NumField()
|
||||||
|
for i := 0; i < l; i++ {
|
||||||
|
// Note: Calling v.CanSet() below is an optimization.
|
||||||
|
// It would be sufficient to check the field name,
|
||||||
|
// but creating the StructField info for each field is
|
||||||
|
// costly (run "go test -bench=ReadStruct" and compare
|
||||||
|
// results when making changes to this code).
|
||||||
|
if v := v.Field(i); v.CanSet() || t.Field(i).Name != "_" {
|
||||||
|
d.value(v)
|
||||||
|
} else {
|
||||||
|
d.skip(v)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
case reflect.Slice:
|
||||||
|
l := v.Len()
|
||||||
|
for i := 0; i < l; i++ {
|
||||||
|
d.value(v.Index(i))
|
||||||
|
}
|
||||||
|
|
||||||
|
case reflect.Int8:
|
||||||
|
v.SetInt(int64(d.int8()))
|
||||||
|
case reflect.Int16:
|
||||||
|
v.SetInt(int64(d.int16()))
|
||||||
|
case reflect.Int32:
|
||||||
|
v.SetInt(int64(d.int32()))
|
||||||
|
case reflect.Int64:
|
||||||
|
v.SetInt(d.int64())
|
||||||
|
|
||||||
|
case reflect.Uint8:
|
||||||
|
v.SetUint(uint64(d.uint8()))
|
||||||
|
case reflect.Uint16:
|
||||||
|
v.SetUint(uint64(d.uint16()))
|
||||||
|
case reflect.Uint32:
|
||||||
|
v.SetUint(uint64(d.uint32()))
|
||||||
|
case reflect.Uint64:
|
||||||
|
v.SetUint(d.uint64())
|
||||||
|
|
||||||
|
case reflect.Float32:
|
||||||
|
v.SetFloat(float64(math.Float32frombits(d.uint32())))
|
||||||
|
case reflect.Float64:
|
||||||
|
v.SetFloat(math.Float64frombits(d.uint64()))
|
||||||
|
|
||||||
|
case reflect.Complex64:
|
||||||
|
v.SetComplex(complex(
|
||||||
|
float64(math.Float32frombits(d.uint32())),
|
||||||
|
float64(math.Float32frombits(d.uint32())),
|
||||||
|
))
|
||||||
|
case reflect.Complex128:
|
||||||
|
v.SetComplex(complex(
|
||||||
|
math.Float64frombits(d.uint64()),
|
||||||
|
math.Float64frombits(d.uint64()),
|
||||||
|
))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func (e *encoder) value(v reflect.Value) {
|
||||||
|
switch v.Kind() {
|
||||||
|
case reflect.Array:
|
||||||
|
l := v.Len()
|
||||||
|
for i := 0; i < l; i++ {
|
||||||
|
e.value(v.Index(i))
|
||||||
|
}
|
||||||
|
|
||||||
|
case reflect.Struct:
|
||||||
|
t := v.Type()
|
||||||
|
l := v.NumField()
|
||||||
|
for i := 0; i < l; i++ {
|
||||||
|
// see comment for corresponding code in decoder.value()
|
||||||
|
if v := v.Field(i); v.CanSet() || t.Field(i).Name != "_" {
|
||||||
|
e.value(v)
|
||||||
|
} else {
|
||||||
|
e.skip(v)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
case reflect.Slice:
|
||||||
|
l := v.Len()
|
||||||
|
for i := 0; i < l; i++ {
|
||||||
|
e.value(v.Index(i))
|
||||||
|
}
|
||||||
|
|
||||||
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||||
|
switch v.Type().Kind() {
|
||||||
|
case reflect.Int8:
|
||||||
|
e.int8(int8(v.Int()))
|
||||||
|
case reflect.Int16:
|
||||||
|
e.int16(int16(v.Int()))
|
||||||
|
case reflect.Int32:
|
||||||
|
e.int32(int32(v.Int()))
|
||||||
|
case reflect.Int64:
|
||||||
|
e.int64(v.Int())
|
||||||
|
}
|
||||||
|
|
||||||
|
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||||
|
switch v.Type().Kind() {
|
||||||
|
case reflect.Uint8:
|
||||||
|
e.uint8(uint8(v.Uint()))
|
||||||
|
case reflect.Uint16:
|
||||||
|
e.uint16(uint16(v.Uint()))
|
||||||
|
case reflect.Uint32:
|
||||||
|
e.uint32(uint32(v.Uint()))
|
||||||
|
case reflect.Uint64:
|
||||||
|
e.uint64(v.Uint())
|
||||||
|
}
|
||||||
|
|
||||||
|
case reflect.Float32, reflect.Float64:
|
||||||
|
switch v.Type().Kind() {
|
||||||
|
case reflect.Float32:
|
||||||
|
e.uint32(math.Float32bits(float32(v.Float())))
|
||||||
|
case reflect.Float64:
|
||||||
|
e.uint64(math.Float64bits(v.Float()))
|
||||||
|
}
|
||||||
|
|
||||||
|
case reflect.Complex64, reflect.Complex128:
|
||||||
|
switch v.Type().Kind() {
|
||||||
|
case reflect.Complex64:
|
||||||
|
x := v.Complex()
|
||||||
|
e.uint32(math.Float32bits(float32(real(x))))
|
||||||
|
e.uint32(math.Float32bits(float32(imag(x))))
|
||||||
|
case reflect.Complex128:
|
||||||
|
x := v.Complex()
|
||||||
|
e.uint64(math.Float64bits(real(x)))
|
||||||
|
e.uint64(math.Float64bits(imag(x)))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func (d *decoder) skip(v reflect.Value) {
|
||||||
|
d.buf = d.buf[dataSize(v):]
|
||||||
|
}
|
||||||
|
|
||||||
|
func (e *encoder) skip(v reflect.Value) {
|
||||||
|
n := dataSize(v)
|
||||||
|
for i := range e.buf[0:n] {
|
||||||
|
e.buf[i] = 0
|
||||||
|
}
|
||||||
|
e.buf = e.buf[n:]
|
||||||
|
}
|
||||||
|
|
||||||
|
// intDataSize returns the size of the data required to represent the data when encoded.
|
||||||
|
// It returns zero if the type cannot be implemented by the fast path in Read or Write.
|
||||||
|
func intDataSize(data interface{}) int {
|
||||||
|
switch data := data.(type) {
|
||||||
|
case int8, *int8, *uint8:
|
||||||
|
return 1
|
||||||
|
case []int8:
|
||||||
|
return len(data)
|
||||||
|
case []uint8:
|
||||||
|
return len(data)
|
||||||
|
case int16, *int16, *uint16:
|
||||||
|
return 2
|
||||||
|
case []int16:
|
||||||
|
return 2 * len(data)
|
||||||
|
case []uint16:
|
||||||
|
return 2 * len(data)
|
||||||
|
case int32, *int32, *uint32:
|
||||||
|
return 4
|
||||||
|
case []int32:
|
||||||
|
return 4 * len(data)
|
||||||
|
case []uint32:
|
||||||
|
return 4 * len(data)
|
||||||
|
case int64, *int64, *uint64:
|
||||||
|
return 8
|
||||||
|
case []int64:
|
||||||
|
return 8 * len(data)
|
||||||
|
case []uint64:
|
||||||
|
return 8 * len(data)
|
||||||
|
}
|
||||||
|
return 0
|
||||||
|
}
|
||||||
@ -1,104 +1,111 @@
|
|||||||
// +build freebsd
|
// Created by cgo -godefs - DO NOT EDIT
|
||||||
// +build amd64
|
// cgo -godefs types_freebsd.go
|
||||||
|
|
||||||
package disk
|
package disk
|
||||||
|
|
||||||
const (
|
const (
|
||||||
MntWait = 1
|
sizeofPtr = 0x8
|
||||||
MfsNameLen = 16 /* length of type name including null */
|
sizeofShort = 0x2
|
||||||
MNameLen = 88 /* size of on/from name bufs */
|
sizeofInt = 0x4
|
||||||
|
sizeofLong = 0x8
|
||||||
|
sizeofLongLong = 0x8
|
||||||
|
sizeofLongDouble = 0x8
|
||||||
|
|
||||||
|
DEVSTAT_NO_DATA = 0x00
|
||||||
|
DEVSTAT_READ = 0x01
|
||||||
|
DEVSTAT_WRITE = 0x02
|
||||||
|
DEVSTAT_FREE = 0x03
|
||||||
|
|
||||||
|
MNT_RDONLY = 0x00000001
|
||||||
|
MNT_SYNCHRONOUS = 0x00000002
|
||||||
|
MNT_NOEXEC = 0x00000004
|
||||||
|
MNT_NOSUID = 0x00000008
|
||||||
|
MNT_UNION = 0x00000020
|
||||||
|
MNT_ASYNC = 0x00000040
|
||||||
|
MNT_SUIDDIR = 0x00100000
|
||||||
|
MNT_SOFTDEP = 0x00200000
|
||||||
|
MNT_NOSYMFOLLOW = 0x00400000
|
||||||
|
MNT_GJOURNAL = 0x02000000
|
||||||
|
MNT_MULTILABEL = 0x04000000
|
||||||
|
MNT_ACLS = 0x08000000
|
||||||
|
MNT_NOATIME = 0x10000000
|
||||||
|
MNT_NOCLUSTERR = 0x40000000
|
||||||
|
MNT_NOCLUSTERW = 0x80000000
|
||||||
|
MNT_NFS4ACLS = 0x00000010
|
||||||
|
|
||||||
|
MNT_WAIT = 1
|
||||||
|
MNT_NOWAIT = 2
|
||||||
|
MNT_LAZY = 3
|
||||||
|
MNT_SUSPEND = 4
|
||||||
)
|
)
|
||||||
|
|
||||||
// sys/mount.h
|
type (
|
||||||
const (
|
_C_short int16
|
||||||
MntReadOnly = 0x00000001 /* read only filesystem */
|
_C_int int32
|
||||||
MntSynchronous = 0x00000002 /* filesystem written synchronously */
|
_C_long int64
|
||||||
MntNoExec = 0x00000004 /* can't exec from filesystem */
|
_C_long_long int64
|
||||||
MntNoSuid = 0x00000008 /* don't honor setuid bits on fs */
|
_C_long_double int64
|
||||||
MntUnion = 0x00000020 /* union with underlying filesystem */
|
|
||||||
MntAsync = 0x00000040 /* filesystem written asynchronously */
|
|
||||||
MntSuidDir = 0x00100000 /* special handling of SUID on dirs */
|
|
||||||
MntSoftDep = 0x00200000 /* soft updates being done */
|
|
||||||
MntNoSymFollow = 0x00400000 /* do not follow symlinks */
|
|
||||||
MntGEOMJournal = 0x02000000 /* GEOM journal support enabled */
|
|
||||||
MntMultilabel = 0x04000000 /* MAC support for individual objects */
|
|
||||||
MntACLs = 0x08000000 /* ACL support enabled */
|
|
||||||
MntNoATime = 0x10000000 /* disable update of file access time */
|
|
||||||
MntClusterRead = 0x40000000 /* disable cluster read */
|
|
||||||
MntClusterWrite = 0x80000000 /* disable cluster write */
|
|
||||||
MntNFS4ACLs = 0x00000010
|
|
||||||
)
|
)
|
||||||
|
|
||||||
type Statfs struct {
|
type Statfs struct {
|
||||||
FVersion uint32 /* structure version number */
|
Version uint32
|
||||||
FType uint32 /* type of filesystem */
|
Type uint32
|
||||||
FFlags uint64 /* copy of mount exported flags */
|
Flags uint64
|
||||||
FBsize uint64 /* filesystem fragment size */
|
Bsize uint64
|
||||||
FIosize uint64 /* optimal transfer block size */
|
Iosize uint64
|
||||||
FBlocks uint64 /* total data blocks in filesystem */
|
Blocks uint64
|
||||||
FBfree uint64 /* free blocks in filesystem */
|
Bfree uint64
|
||||||
FBavail int64 /* free blocks avail to non-superuser */
|
Bavail int64
|
||||||
FFiles uint64 /* total file nodes in filesystem */
|
Files uint64
|
||||||
FFfree int64 /* free nodes avail to non-superuser */
|
Ffree int64
|
||||||
FSyncwrites uint64 /* count of sync writes since mount */
|
Syncwrites uint64
|
||||||
FAsyncwrites uint64 /* count of async writes since mount */
|
Asyncwrites uint64
|
||||||
FSyncreads uint64 /* count of sync reads since mount */
|
Syncreads uint64
|
||||||
FAsyncreads uint64 /* count of async reads since mount */
|
Asyncreads uint64
|
||||||
FSpare [10]uint64 /* unused spare */
|
Spare [10]uint64
|
||||||
FNamemax uint32 /* maximum filename length */
|
Namemax uint32
|
||||||
FOwner uint32 /* user that mounted the filesystem */
|
Owner uint32
|
||||||
FFsid int32 /* filesystem id */
|
Fsid Fsid
|
||||||
FCharspare [80]byte /* spare string space */
|
Charspare [80]int8
|
||||||
FFstypename [MfsNameLen]byte /* filesystem type name */
|
Fstypename [16]int8
|
||||||
FMntfromname [MNameLen]byte /* mounted filesystem */
|
Mntfromname [88]int8
|
||||||
FMntonname [MNameLen]byte /* directory on which mounted */
|
Mntonname [88]int8
|
||||||
|
}
|
||||||
|
type Fsid struct {
|
||||||
|
Val [2]int32
|
||||||
}
|
}
|
||||||
|
|
||||||
// /usr/include/devstat.h
|
type Devstat struct {
|
||||||
// devstat_getdevs()
|
Sequence0 uint32
|
||||||
// kern.devstat.all -> devstats list struct
|
Allocated int32
|
||||||
|
Start_count uint32
|
||||||
// struct devinfo {
|
End_count uint32
|
||||||
// struct devstat *devices;
|
Busy_from Bintime
|
||||||
// u_int8_t *mem_ptr;
|
Dev_links _Ctype_struct___0
|
||||||
// long generation;
|
Device_number uint32
|
||||||
// int numdevs;
|
Device_name [16]int8
|
||||||
// };
|
Unit_number int32
|
||||||
//
|
Bytes [4]uint64
|
||||||
// struct statinfo {
|
Operations [4]uint64
|
||||||
// long cp_time[CPUSTATES];
|
Duration [4]Bintime
|
||||||
// long tk_nin;
|
Busy_time Bintime
|
||||||
// long tk_nout;
|
Creation_time Bintime
|
||||||
// struct devinfo *dinfo;
|
Block_size uint32
|
||||||
// long double snap_time;
|
Pad_cgo_0 [4]byte
|
||||||
// };
|
Tag_types [3]uint64
|
||||||
|
Flags uint32
|
||||||
// /usr/include/devinfo.h
|
Device_type uint32
|
||||||
|
Priority uint32
|
||||||
|
Pad_cgo_1 [4]byte
|
||||||
|
Id *byte
|
||||||
|
Sequence1 uint32
|
||||||
|
Pad_cgo_2 [4]byte
|
||||||
|
}
|
||||||
|
type Bintime struct {
|
||||||
|
Sec int64
|
||||||
|
Frac uint64
|
||||||
|
}
|
||||||
|
|
||||||
// struct devinfo_dev {
|
type _Ctype_struct___0 struct {
|
||||||
// devinfo_handle_t dd_handle; /* device handle */
|
Empty uint64
|
||||||
// devinfo_handle_t dd_parent; /* parent handle */
|
}
|
||||||
// char *dd_name; /* name of device */
|
|
||||||
// char *dd_desc; /* device description */
|
|
||||||
// char *dd_drivername; /* name of attached driver */
|
|
||||||
// char *dd_pnpinfo; /* pnp info from parent bus */
|
|
||||||
// char *dd_location; /* Where bus thinks dev at */
|
|
||||||
// uint32_t dd_devflags; /* API flags */
|
|
||||||
// uint16_t dd_flags; /* internal dev flags */
|
|
||||||
// device_state_t dd_state; /* attachment state of dev */
|
|
||||||
// };
|
|
||||||
//
|
|
||||||
// struct devinfo_rman {
|
|
||||||
// devinfo_handle_t dm_handle; /* resource manager handle */
|
|
||||||
// u_long dm_start; /* resource start */
|
|
||||||
// u_long dm_size; /* resource size */
|
|
||||||
// char *dm_desc; /* resource description */
|
|
||||||
// };
|
|
||||||
//
|
|
||||||
// struct devinfo_res {
|
|
||||||
// devinfo_handle_t dr_handle; /* resource handle */
|
|
||||||
// devinfo_handle_t dr_rman; /* resource manager handle */
|
|
||||||
// devinfo_handle_t dr_device; /* owning device */
|
|
||||||
// u_long dr_start; /* region start */
|
|
||||||
// u_long dr_size; /* region size */
|
|
||||||
// };
|
|
||||||
|
|||||||
@ -0,0 +1,85 @@
|
|||||||
|
// +build ignore
|
||||||
|
// Hand writing: _Ctype_struct___0
|
||||||
|
|
||||||
|
/*
|
||||||
|
Input to cgo -godefs.
|
||||||
|
|
||||||
|
*/
|
||||||
|
|
||||||
|
package disk
|
||||||
|
|
||||||
|
/*
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <sys/mount.h>
|
||||||
|
#include <devstat.h>
|
||||||
|
|
||||||
|
enum {
|
||||||
|
sizeofPtr = sizeof(void*),
|
||||||
|
};
|
||||||
|
|
||||||
|
// because statinfo has long double snap_time, redefine with changing long long
|
||||||
|
struct statinfo2 {
|
||||||
|
long cp_time[CPUSTATES];
|
||||||
|
long tk_nin;
|
||||||
|
long tk_nout;
|
||||||
|
struct devinfo *dinfo;
|
||||||
|
long long snap_time;
|
||||||
|
};
|
||||||
|
*/
|
||||||
|
import "C"
|
||||||
|
|
||||||
|
// Machine characteristics; for internal use.
|
||||||
|
|
||||||
|
const (
|
||||||
|
sizeofPtr = C.sizeofPtr
|
||||||
|
sizeofShort = C.sizeof_short
|
||||||
|
sizeofInt = C.sizeof_int
|
||||||
|
sizeofLong = C.sizeof_long
|
||||||
|
sizeofLongLong = C.sizeof_longlong
|
||||||
|
sizeofLongDouble = C.sizeof_longlong
|
||||||
|
|
||||||
|
DEVSTAT_NO_DATA = 0x00
|
||||||
|
DEVSTAT_READ = 0x01
|
||||||
|
DEVSTAT_WRITE = 0x02
|
||||||
|
DEVSTAT_FREE = 0x03
|
||||||
|
|
||||||
|
// from sys/mount.h
|
||||||
|
MNT_RDONLY = 0x00000001 /* read only filesystem */
|
||||||
|
MNT_SYNCHRONOUS = 0x00000002 /* filesystem written synchronously */
|
||||||
|
MNT_NOEXEC = 0x00000004 /* can't exec from filesystem */
|
||||||
|
MNT_NOSUID = 0x00000008 /* don't honor setuid bits on fs */
|
||||||
|
MNT_UNION = 0x00000020 /* union with underlying filesystem */
|
||||||
|
MNT_ASYNC = 0x00000040 /* filesystem written asynchronously */
|
||||||
|
MNT_SUIDDIR = 0x00100000 /* special handling of SUID on dirs */
|
||||||
|
MNT_SOFTDEP = 0x00200000 /* soft updates being done */
|
||||||
|
MNT_NOSYMFOLLOW = 0x00400000 /* do not follow symlinks */
|
||||||
|
MNT_GJOURNAL = 0x02000000 /* GEOM journal support enabled */
|
||||||
|
MNT_MULTILABEL = 0x04000000 /* MAC support for individual objects */
|
||||||
|
MNT_ACLS = 0x08000000 /* ACL support enabled */
|
||||||
|
MNT_NOATIME = 0x10000000 /* disable update of file access time */
|
||||||
|
MNT_NOCLUSTERR = 0x40000000 /* disable cluster read */
|
||||||
|
MNT_NOCLUSTERW = 0x80000000 /* disable cluster write */
|
||||||
|
MNT_NFS4ACLS = 0x00000010
|
||||||
|
|
||||||
|
MNT_WAIT = 1 /* synchronously wait for I/O to complete */
|
||||||
|
MNT_NOWAIT = 2 /* start all I/O, but do not wait for it */
|
||||||
|
MNT_LAZY = 3 /* push data not written by filesystem syncer */
|
||||||
|
MNT_SUSPEND = 4 /* Suspend file system after sync */
|
||||||
|
|
||||||
|
)
|
||||||
|
|
||||||
|
// Basic types
|
||||||
|
|
||||||
|
type (
|
||||||
|
_C_short C.short
|
||||||
|
_C_int C.int
|
||||||
|
_C_long C.long
|
||||||
|
_C_long_long C.longlong
|
||||||
|
_C_long_double C.longlong
|
||||||
|
)
|
||||||
|
|
||||||
|
type Statfs C.struct_statfs
|
||||||
|
type Fsid C.struct_fsid
|
||||||
|
|
||||||
|
type Devstat C.struct_devstat
|
||||||
|
type Bintime C.struct_bintime
|
||||||
Loading…
Reference in New Issue