mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-12-27 11:15:39 +00:00
116 lines
3.5 KiB
Go
116 lines
3.5 KiB
Go
// Copyright (c) 2016 Uber Technologies, Inc.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
// THE SOFTWARE.
|
|
|
|
// Package buffer provides a thin wrapper around a byte slice. Unlike the
|
|
// standard library's bytes.Buffer, it supports a portion of the strconv
|
|
// package's zero-allocation formatters.
|
|
package buffer // import "go.uber.org/zap/buffer"
|
|
|
|
import "strconv"
|
|
|
|
const _size = 1024 // by default, create 1 KiB buffers
|
|
|
|
// Buffer is a thin wrapper around a byte slice. It's intended to be pooled, so
|
|
// the only way to construct one is via a Pool.
|
|
type Buffer struct {
|
|
bs []byte
|
|
pool Pool
|
|
}
|
|
|
|
// AppendByte writes a single byte to the Buffer.
|
|
func (b *Buffer) AppendByte(v byte) {
|
|
b.bs = append(b.bs, v)
|
|
}
|
|
|
|
// AppendString writes a string to the Buffer.
|
|
func (b *Buffer) AppendString(s string) {
|
|
b.bs = append(b.bs, s...)
|
|
}
|
|
|
|
// AppendInt appends an integer to the underlying buffer (assuming base 10).
|
|
func (b *Buffer) AppendInt(i int64) {
|
|
b.bs = strconv.AppendInt(b.bs, i, 10)
|
|
}
|
|
|
|
// AppendUint appends an unsigned integer to the underlying buffer (assuming
|
|
// base 10).
|
|
func (b *Buffer) AppendUint(i uint64) {
|
|
b.bs = strconv.AppendUint(b.bs, i, 10)
|
|
}
|
|
|
|
// AppendBool appends a bool to the underlying buffer.
|
|
func (b *Buffer) AppendBool(v bool) {
|
|
b.bs = strconv.AppendBool(b.bs, v)
|
|
}
|
|
|
|
// AppendFloat appends a float to the underlying buffer. It doesn't quote NaN
|
|
// or +/- Inf.
|
|
func (b *Buffer) AppendFloat(f float64, bitSize int) {
|
|
b.bs = strconv.AppendFloat(b.bs, f, 'f', -1, bitSize)
|
|
}
|
|
|
|
// Len returns the length of the underlying byte slice.
|
|
func (b *Buffer) Len() int {
|
|
return len(b.bs)
|
|
}
|
|
|
|
// Cap returns the capacity of the underlying byte slice.
|
|
func (b *Buffer) Cap() int {
|
|
return cap(b.bs)
|
|
}
|
|
|
|
// Bytes returns a mutable reference to the underlying byte slice.
|
|
func (b *Buffer) Bytes() []byte {
|
|
return b.bs
|
|
}
|
|
|
|
// String returns a string copy of the underlying byte slice.
|
|
func (b *Buffer) String() string {
|
|
return string(b.bs)
|
|
}
|
|
|
|
// Reset resets the underlying byte slice. Subsequent writes re-use the slice's
|
|
// backing array.
|
|
func (b *Buffer) Reset() {
|
|
b.bs = b.bs[:0]
|
|
}
|
|
|
|
// Write implements io.Writer.
|
|
func (b *Buffer) Write(bs []byte) (int, error) {
|
|
b.bs = append(b.bs, bs...)
|
|
return len(bs), nil
|
|
}
|
|
|
|
// TrimNewline trims any final "\n" byte from the end of the buffer.
|
|
func (b *Buffer) TrimNewline() {
|
|
if i := len(b.bs) - 1; i >= 0 {
|
|
if b.bs[i] == '\n' {
|
|
b.bs = b.bs[:i]
|
|
}
|
|
}
|
|
}
|
|
|
|
// Free returns the Buffer to its Pool.
|
|
//
|
|
// Callers must not retain references to the Buffer after calling Free.
|
|
func (b *Buffer) Free() {
|
|
b.pool.put(b)
|
|
}
|