mirror of
https://github.com/duanhf2012/origin.git
synced 2026-02-04 06:54:45 +08:00
94 lines
2.2 KiB
Go
94 lines
2.2 KiB
Go
package log
|
|
|
|
import (
|
|
"strconv"
|
|
)
|
|
|
|
const _size = 9216
|
|
|
|
type Buffer struct {
|
|
bs []byte
|
|
//mu sync.Mutex // ensures atomic writes; protects the following fields
|
|
}
|
|
|
|
func (buff *Buffer) Init() {
|
|
buff.bs = make([]byte, _size)
|
|
}
|
|
|
|
// AppendByte writes a single byte to the Buffer.
|
|
func (buff *Buffer) AppendByte(v byte) {
|
|
buff.bs = append(buff.bs, v)
|
|
}
|
|
|
|
func (buff *Buffer) AppendBytes(v []byte) {
|
|
buff.bs = append(buff.bs, v...)
|
|
}
|
|
|
|
// AppendString writes a string to the Buffer.
|
|
func (buff *Buffer) AppendString(s string) {
|
|
buff.bs = append(buff.bs, s...)
|
|
}
|
|
|
|
// AppendInt appends an integer to the underlying buffer (assuming base 10).
|
|
func (buff *Buffer) AppendInt(i int64) {
|
|
buff.bs = strconv.AppendInt(buff.bs, i, 10)
|
|
}
|
|
|
|
// AppendUint appends an unsigned integer to the underlying buffer (assuming
|
|
// base 10).
|
|
func (buff *Buffer) AppendUint(i uint64) {
|
|
buff.bs = strconv.AppendUint(buff.bs, i, 10)
|
|
}
|
|
|
|
// AppendBool appends a bool to the underlying buffer.
|
|
func (buff *Buffer) AppendBool(v bool) {
|
|
buff.bs = strconv.AppendBool(buff.bs, v)
|
|
}
|
|
|
|
// AppendFloat appends a float to the underlying buffer. It doesn't quote NaN
|
|
// or +/- Inf.
|
|
func (buff *Buffer) AppendFloat(f float64, bitSize int) {
|
|
buff.bs = strconv.AppendFloat(buff.bs, f, 'f', -1, bitSize)
|
|
}
|
|
|
|
// Len returns the length of the underlying byte slice.
|
|
func (buff *Buffer) Len() int {
|
|
return len(buff.bs)
|
|
}
|
|
|
|
// Cap returns the capacity of the underlying byte slice.
|
|
func (buff *Buffer) Cap() int {
|
|
return cap(buff.bs)
|
|
}
|
|
|
|
// Bytes returns a mutable reference to the underlying byte slice.
|
|
func (buff *Buffer) Bytes() []byte {
|
|
return buff.bs
|
|
}
|
|
|
|
// String returns a string copy of the underlying byte slice.
|
|
func (buff *Buffer) String() string {
|
|
return string(buff.bs)
|
|
}
|
|
|
|
// Reset resets the underlying byte slice. Subsequent writes re-use the slice's
|
|
// backing array.
|
|
func (buff *Buffer) Reset() {
|
|
buff.bs = buff.bs[:0]
|
|
}
|
|
|
|
// Write implements io.Writer.
|
|
func (buff *Buffer) Write(bs []byte) (int, error) {
|
|
buff.bs = append(buff.bs, bs...)
|
|
return len(bs), nil
|
|
}
|
|
|
|
// TrimNewline trims any final "\n" byte from the end of the buffer.
|
|
func (buff *Buffer) TrimNewline() {
|
|
if i := len(buff.bs) - 1; i >= 0 {
|
|
if buff.bs[i] == '\n' {
|
|
buff.bs = buff.bs[:i]
|
|
}
|
|
}
|
|
}
|