43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
|
// Copyright 2013 Prometheus Team
|
||
|
|
// 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 web
|
||
|
|
|
||
|
|
import (
|
||
|
|
"github.com/prometheus/prometheus/storage/raw/leveldb"
|
||
|
|
"net/http"
|
||
|
|
"sync"
|
||
|
|
)
|
||
|
|
|
||
|
|
type DatabasesHandler struct {
|
||
|
|
States []leveldb.DatabaseState
|
||
|
|
|
||
|
|
Incoming chan []leveldb.DatabaseState
|
||
|
|
|
||
|
|
mutex sync.RWMutex
|
||
|
|
}
|
||
|
|
|
||
|
|
func (h *DatabasesHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
||
|
|
select {
|
||
|
|
case states := <-h.Incoming:
|
||
|
|
h.mutex.Lock()
|
||
|
|
defer h.mutex.Unlock()
|
||
|
|
h.States = states
|
||
|
|
default:
|
||
|
|
h.mutex.RLock()
|
||
|
|
defer h.mutex.RUnlock()
|
||
|
|
}
|
||
|
|
|
||
|
|
executeTemplate(w, "databases", h)
|
||
|
|
}
|