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task_runner.go
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/
task_runner.go
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// Copyright 2024 The casbin Authors. All Rights Reserved.
//
// 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 metric
import "sync"
type Runner struct {
wg sync.WaitGroup
errors []error
mux sync.Mutex
}
func (r *Runner) Add(f func() error) {
r.wg.Add(1)
go func() {
defer r.wg.Done()
if err := f(); err != nil {
r.addError(err)
}
}()
}
func (r *Runner) addError(err error) {
r.mux.Lock()
defer r.mux.Unlock()
r.errors = append(r.errors, err)
}
func (r *Runner) Wait() []error {
r.wg.Wait()
return r.errors
}