| // Copyright 2015 The LUCI Authors. |
| // |
| // 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 fetcher |
| |
| import ( |
| "container/list" |
| |
| "go.chromium.org/luci/logdog/api/logpb" |
| ) |
| |
| type logBuffer struct { |
| l list.List |
| cur []*logpb.LogEntry |
| curIdx int |
| |
| count int |
| } |
| |
| func (b *logBuffer) current() *logpb.LogEntry { |
| for b.curIdx >= len(b.cur) { |
| if b.l.Len() == 0 { |
| return nil |
| } |
| b.cur = b.l.Remove(b.l.Front()).([]*logpb.LogEntry) |
| b.curIdx = 0 |
| } |
| |
| return b.cur[b.curIdx] |
| } |
| |
| func (b *logBuffer) next() { |
| b.curIdx++ |
| b.count-- |
| } |
| |
| func (b *logBuffer) append(le ...*logpb.LogEntry) { |
| b.l.PushBack(le) |
| b.count += len(le) |
| } |
| |
| func (b *logBuffer) size() int { |
| return b.count |
| } |