mirror of
https://github.com/k3s-io/k3s.git
synced 2024-06-07 19:41:36 +00:00
72 lines
2.0 KiB
Go
72 lines
2.0 KiB
Go
package etw
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/binary"
|
|
"syscall"
|
|
)
|
|
|
|
// eventData maintains a buffer which builds up the data for an ETW event. It
|
|
// needs to be paired with EventMetadata which describes the event.
|
|
type eventData struct {
|
|
buffer bytes.Buffer
|
|
}
|
|
|
|
// bytes returns the raw binary data containing the event data. The returned
|
|
// value is not copied from the internal buffer, so it can be mutated by the
|
|
// eventData object after it is returned.
|
|
func (ed *eventData) bytes() []byte {
|
|
return ed.buffer.Bytes()
|
|
}
|
|
|
|
// writeString appends a string, including the null terminator, to the buffer.
|
|
func (ed *eventData) writeString(data string) {
|
|
ed.buffer.WriteString(data)
|
|
ed.buffer.WriteByte(0)
|
|
}
|
|
|
|
// writeInt8 appends a int8 to the buffer.
|
|
func (ed *eventData) writeInt8(value int8) {
|
|
ed.buffer.WriteByte(uint8(value))
|
|
}
|
|
|
|
// writeInt16 appends a int16 to the buffer.
|
|
func (ed *eventData) writeInt16(value int16) {
|
|
binary.Write(&ed.buffer, binary.LittleEndian, value)
|
|
}
|
|
|
|
// writeInt32 appends a int32 to the buffer.
|
|
func (ed *eventData) writeInt32(value int32) {
|
|
binary.Write(&ed.buffer, binary.LittleEndian, value)
|
|
}
|
|
|
|
// writeInt64 appends a int64 to the buffer.
|
|
func (ed *eventData) writeInt64(value int64) {
|
|
binary.Write(&ed.buffer, binary.LittleEndian, value)
|
|
}
|
|
|
|
// writeUint8 appends a uint8 to the buffer.
|
|
func (ed *eventData) writeUint8(value uint8) {
|
|
ed.buffer.WriteByte(value)
|
|
}
|
|
|
|
// writeUint16 appends a uint16 to the buffer.
|
|
func (ed *eventData) writeUint16(value uint16) {
|
|
binary.Write(&ed.buffer, binary.LittleEndian, value)
|
|
}
|
|
|
|
// writeUint32 appends a uint32 to the buffer.
|
|
func (ed *eventData) writeUint32(value uint32) {
|
|
binary.Write(&ed.buffer, binary.LittleEndian, value)
|
|
}
|
|
|
|
// writeUint64 appends a uint64 to the buffer.
|
|
func (ed *eventData) writeUint64(value uint64) {
|
|
binary.Write(&ed.buffer, binary.LittleEndian, value)
|
|
}
|
|
|
|
// writeFiletime appends a FILETIME to the buffer.
|
|
func (ed *eventData) writeFiletime(value syscall.Filetime) {
|
|
binary.Write(&ed.buffer, binary.LittleEndian, value)
|
|
}
|