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tcp_package.go
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tcp_package.go
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package tcputil
import (
"reflect"
"unsafe"
)
type TcpOutput struct {
owner *TcpConn
buff []byte
Data []byte
}
func (this *TcpOutput) Send() error {
return this.owner.sendRaw(this.buff)
}
func (this *TcpOutput) WriteUint(pack int, value uint64) *TcpOutput {
switch pack {
case 1:
this.WriteUint8(uint8(value))
case 2:
this.WriteUint16(uint16(value))
case 4:
this.WriteUint32(uint32(value))
case 8:
this.WriteUint64(uint64(value))
default:
panic("pack != 1 || pack != 2 || pack != 4 || pack != 8")
}
return this
}
func (this *TcpOutput) WriteInt8(value int8) *TcpOutput {
if len(this.Data) < 1 {
panic("index out of range")
}
this.Data[0] = byte(value)
this.Data = this.Data[1:]
return this
}
func (this *TcpOutput) WriteUint8(value uint8) *TcpOutput {
if len(this.Data) < 1 {
panic("index out of range")
}
this.Data[0] = byte(value)
this.Data = this.Data[1:]
return this
}
func (this *TcpOutput) WriteInt16(value int16) *TcpOutput {
if len(this.Data) < 2 {
panic("index out of range")
}
*(*int16)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data)) = value
this.Data = this.Data[2:]
return this
}
func (this *TcpOutput) WriteUint16(value uint16) *TcpOutput {
if len(this.Data) < 2 {
panic("index out of range")
}
*(*uint16)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data)) = value
this.Data = this.Data[2:]
return this
}
func (this *TcpOutput) WriteInt32(value int32) *TcpOutput {
if len(this.Data) < 4 {
panic("index out of range")
}
*(*int32)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data)) = value
this.Data = this.Data[4:]
return this
}
func (this *TcpOutput) WriteUint32(value uint32) *TcpOutput {
if len(this.Data) < 4 {
panic("index out of range")
}
*(*uint32)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data)) = value
this.Data = this.Data[4:]
return this
}
func (this *TcpOutput) WriteInt64(value int64) *TcpOutput {
if len(this.Data) < 8 {
panic("index out of range")
}
*(*int64)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data)) = value
this.Data = this.Data[8:]
return this
}
func (this *TcpOutput) WriteUint64(value uint64) *TcpOutput {
if len(this.Data) < 8 {
panic("index out of range")
}
*(*uint64)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data)) = value
this.Data = this.Data[8:]
return this
}
func (this *TcpOutput) WriteBytes(data []byte) *TcpOutput {
if len(this.Data) < len(data) {
panic("index out of range")
}
copy(this.Data, data)
this.Data = this.Data[len(data):]
return this
}
func (this *TcpOutput) WriteBytes8(data []byte) *TcpOutput {
this.WriteUint8(uint8(len(data)))
this.WriteBytes(data)
return this
}
func (this *TcpOutput) WriteBytes16(data []byte) *TcpOutput {
this.WriteUint16(uint16(len(data)))
this.WriteBytes(data)
return this
}
func (this *TcpOutput) WriteBytes32(data []byte) *TcpOutput {
this.WriteUint32(uint32(len(data)))
this.WriteBytes(data)
return this
}
type TcpInput struct {
Data []byte
}
func NewTcpInput(data []byte) *TcpInput {
return &TcpInput{data}
}
func (this *TcpInput) Seek(n int) *TcpInput {
this.Data = this.Data[n:]
return this
}
func (this *TcpInput) ReadInt8() int8 {
var result = int8(this.Data[0])
this.Data = this.Data[1:]
return result
}
func (this *TcpInput) ReadUint8() uint8 {
var result = uint8(this.Data[0])
this.Data = this.Data[1:]
return result
}
func (this *TcpInput) ReadInt16() int16 {
if len(this.Data) < 2 {
panic("index out of range")
}
var result = *(*int16)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data))
this.Data = this.Data[2:]
return result
}
func (this *TcpInput) ReadUint16() uint16 {
if len(this.Data) < 2 {
panic("index out of range")
}
var result = *(*uint16)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data))
this.Data = this.Data[2:]
return result
}
func (this *TcpInput) ReadInt32() int32 {
if len(this.Data) < 4 {
panic("index out of range")
}
var result = *(*int32)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data))
this.Data = this.Data[4:]
return result
}
func (this *TcpInput) ReadUint32() uint32 {
if len(this.Data) < 4 {
panic("index out of range")
}
var result = *(*uint32)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data))
this.Data = this.Data[4:]
return result
}
func (this *TcpInput) ReadInt64() int64 {
if len(this.Data) < 8 {
panic("index out of range")
}
var result = *(*int64)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data))
this.Data = this.Data[8:]
return result
}
func (this *TcpInput) ReadUint64() uint64 {
if len(this.Data) < 8 {
panic("index out of range")
}
var result = *(*uint64)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&this.Data)).Data))
this.Data = this.Data[8:]
return result
}
func (this *TcpInput) ReadBytes(n int) []byte {
var result = this.Data[:n]
this.Data = this.Data[n:]
return result
}
func (this *TcpInput) ReadBytes8() []byte {
var n = this.ReadUint8()
return this.ReadBytes(int(n))
}
func (this *TcpInput) ReadBytes16() []byte {
var n = this.ReadUint16()
return this.ReadBytes(int(n))
}
func (this *TcpInput) ReadBytes32() []byte {
var n = this.ReadUint32()
return this.ReadBytes(int(n))
}