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此仓库是为了提升国内下载速度的镜像仓库,每日同步一次。 原始仓库: https://github.com/canonical/go-dqlite
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cursor.go 1.10 KB
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// Copyright 2017 Canonical Ltd.
//
// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package trace
// A cursor holds the index of an entry of a circular buffer.
type cursor struct {
position int // Current position of the cursor
length int // Lenght of the circular buffer.
}
func newCursor(position, length int) *cursor {
return &cursor{
position: position,
length: length,
}
}
func (c *cursor) Position() int {
return c.position
}
func (c *cursor) Advance() {
c.position = (c.position + c.length + 1) % c.length
}
func (c *cursor) Retract() {
c.position = (c.position + c.length - 1) % c.length
}
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https://gitee.com/mirrors/go-dqlite.git
git@gitee.com:mirrors/go-dqlite.git
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go-dqlite
go-dqlite
v0.2.1

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