RichΛrd 40359f9c1b
go-waku integration (#2247)
* Adding wakunode module
* Adding wakuv2 fleet files
* Add waku fleets to update-fleet-config script
* Adding config items for waku v2
* Conditionally start waku v2 node depending on config
* Adapting common code to use go-waku
* Setting log level to info
* update dependencies
* update fleet config to use WakuNodes instead of BootNodes
* send and receive messages
* use hash returned when publishing a message
* add waku store protocol
* trigger signal after receiving store messages
* exclude linting rule SA1019 to check deprecated packages
2021-06-16 16:19:45 -04:00

61 lines
837 B
Go

package timecache
import (
"container/list"
"time"
)
type TimeCache struct {
Q *list.List
M map[string]time.Time
span time.Duration
}
func NewTimeCache(span time.Duration) *TimeCache {
return &TimeCache{
Q: list.New(),
M: make(map[string]time.Time),
span: span,
}
}
func (tc *TimeCache) Add(s string) {
_, ok := tc.M[s]
if ok {
panic("putting the same entry twice not supported")
}
tc.sweep()
tc.M[s] = time.Now()
tc.Q.PushFront(s)
}
func (tc *TimeCache) sweep() {
for {
back := tc.Q.Back()
if back == nil {
return
}
v := back.Value.(string)
t, ok := tc.M[v]
if !ok {
panic("inconsistent cache state")
}
if time.Since(t) > tc.span {
tc.Q.Remove(back)
delete(tc.M, v)
} else {
return
}
}
}
func (tc *TimeCache) Has(s string) bool {
_, ok := tc.M[s]
return ok
}