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ceph-csi/internal/health-checker/statchecker.go
Niels de Vos 54fc65a561 util: add health-checker for periodic filesystem checks
Signed-off-by: Niels de Vos <ndevos@ibm.com>
2023-11-03 13:41:44 +00:00

71 lines
1.4 KiB
Go

/*
Copyright 2023 ceph-csi authors.
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 healthchecker
import (
"os"
"time"
)
type statChecker struct {
checker
// dirname points to the directory that is used for checking.
dirname string
}
func newStatChecker(dir string) ConditionChecker {
sc := &statChecker{
dirname: dir,
}
sc.initDefaults()
sc.checker.runChecker = func() {
sc.isRunning = true
ticker := time.NewTicker(sc.interval)
defer ticker.Stop()
for {
select {
case <-sc.commands: // STOP command received
sc.isRunning = false
return
case now := <-ticker.C:
_, err := os.Stat(sc.dirname)
if err != nil {
sc.mutex.Lock()
sc.healthy = false
sc.err = err
sc.mutex.Unlock()
continue
}
sc.mutex.Lock()
sc.healthy = true
sc.err = nil
sc.lastUpdate = now
sc.mutex.Unlock()
}
}
}
return sc
}