forked from ngaut/unistore
/
io_limiter.go
52 lines (43 loc) · 1.44 KB
/
io_limiter.go
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// Copyright 2019-present PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
// Copyright 2019-present PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package raftstore
import (
"io"
"golang.org/x/time/rate"
)
type IOLimiter = rate.Limiter
func NewIOLimiter(rateLimit int) *IOLimiter {
return rate.NewLimiter(rate.Limit(rateLimit), rateLimit)
}
func NewInfLimiter() *IOLimiter {
return rate.NewLimiter(rate.Inf, 0)
}
type LimitWriter struct {
limiter *IOLimiter
writer io.Writer
}
func (lw *LimitWriter) Write(b []byte) (int, error) {
return lw.writer.Write(b)
}