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66 lines (58 loc) · 1.88 KB
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/*
* === This file is part of ALICE O² ===
*
* Copyright 2020-2022 CERN and copyright holders of ALICE O².
* Author: Miltiadis Alexis <miltiadis.alexis@cern.ch>
* Teo Mrnjavac <teo.mrnjavac@cern.ch>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* In applying this license CERN does not waive the privileges and
* immunities granted to it by virtue of its status as an
* Intergovernmental Organization or submit itself to any jurisdiction.
*/
package core
import (
"sync"
pb "github.com/AliceO2Group/Control/core/protos"
)
// SafeStreamsMap is a safe map where the key is usually a
// subscriptionID received from the grpc call and as a value
// a channel where get events from the environment
// and we stream them to the grpc client.
type SafeStreamsMap struct {
mu sync.RWMutex
streams map[string]chan *pb.Event
}
func (s *SafeStreamsMap) add(id string, ch chan *pb.Event) {
s.mu.Lock()
s.streams[id] = ch
s.mu.Unlock()
}
func (s *SafeStreamsMap) delete(id string) {
s.mu.Lock()
delete(s.streams, id)
s.mu.Unlock()
}
func (s *SafeStreamsMap) GetChannel(id string) (ch chan *pb.Event, ok bool) {
s.mu.RLock()
defer s.mu.RUnlock()
ch, ok = s.streams[id]
return
}
func newSafeStreamsMap() SafeStreamsMap {
return SafeStreamsMap{
streams: make(map[string]chan *pb.Event),
}
}