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// Copyright (c) 2021 Cisco and/or its affiliates.
//
// 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 core
import (
"go.fd.io/govpp/api"
"sort"
"sync"
"sync/atomic"
)
// trace is the API tracer object synchronizing and keeping recoded messages.
type trace struct {
list []*api.Record
mux *sync.Mutex
isEnabled int32
}
func (c *trace) Enable(enable bool) {
if enable && atomic.CompareAndSwapInt32(&c.isEnabled, 0, 1) {
log.Debugf("API trace enabled")
} else if atomic.CompareAndSwapInt32(&c.isEnabled, 1, 0) {
log.Debugf("API trace disabled")
}
}
func (c *trace) GetRecords() (list []*api.Record) {
c.mux.Lock()
for _, entry := range c.list {
list = append(list, entry)
}
c.mux.Unlock()
sort.Slice(list, func(i, j int) bool {
return list[i].Timestamp.Before(list[j].Timestamp)
})
return list
}
func (c *trace) GetRecordsForChannel(chId uint16) (list []*api.Record) {
c.mux.Lock()
for _, entry := range c.list {
if entry.ChannelID == chId {
list = append(list, entry)
}
}
c.mux.Unlock()
sort.Slice(list, func(i, j int) bool {
return list[i].Timestamp.Before(list[j].Timestamp)
})
return list
}
func (c *trace) Clear() {
c.mux.Lock()
c.list = make([]*api.Record, 0)
c.mux.Unlock()
}
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