/
tracker.go
85 lines (72 loc) · 2.06 KB
/
tracker.go
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/*
Copyright 2016 Padduck, LLC
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 pufferpanel
import (
"encoding/json"
"github.com/pufferpanel/pufferpanel/v2/logging"
"github.com/pufferpanel/pufferpanel/v2/messages"
"sync"
)
type Tracker struct {
sockets []*connection
locker sync.Mutex
}
type connection struct {
socket *Socket
lock sync.Mutex
}
func CreateTracker() *Tracker {
return &Tracker{sockets: make([]*connection, 0)}
}
func (ws *Tracker) Register(conn *Socket) {
ws.locker.Lock()
defer ws.locker.Unlock()
ws.sockets = append(ws.sockets, &connection{socket: conn})
}
func (ws *Tracker) WriteMessage(msg messages.Message) error {
d, err := json.Marshal(&messages.Transmission{Message: msg, Type: msg.Key()})
if err != nil {
return err
}
ws.locker.Lock()
defer ws.locker.Unlock()
for i := 0; i < len(ws.sockets); i++ {
go func(conn *connection, data []byte) {
conn.lock.Lock()
defer conn.lock.Unlock()
err := conn.socket.WriteMessage(data)
if err != nil {
logging.Info.Printf("websocket encountered error, dropping (%s)", err.Error())
ws.locker.Lock()
defer ws.locker.Unlock()
for i, k := range ws.sockets {
if k == conn {
ws.sockets[i] = ws.sockets[len(ws.sockets)-1]
ws.sockets[len(ws.sockets)-1] = nil
ws.sockets = ws.sockets[:len(ws.sockets)-1]
break
}
}
}
}(ws.sockets[i], d)
}
return nil
}
func (ws *Tracker) Write(source []byte) (n int, e error) {
logs := make([]string, 1)
logs[0] = string(source)
packet := messages.Console{Logs: logs}
e = ws.WriteMessage(packet)
n = len(source)
return
}