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codeberg-forgejo/modules/graceful/releasereopen/releasereopen.go

62 lines
1021 B
Go

// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package releasereopen
import (
"errors"
"sync"
)
type ReleaseReopener interface {
ReleaseReopen() error
}
type Manager struct {
mu sync.Mutex
counter int64
releaseReopeners map[int64]ReleaseReopener
}
func (r *Manager) Register(rr ReleaseReopener) (cancel func()) {
r.mu.Lock()
defer r.mu.Unlock()
r.counter++
currentCounter := r.counter
r.releaseReopeners[r.counter] = rr
return func() {
r.mu.Lock()
defer r.mu.Unlock()
delete(r.releaseReopeners, currentCounter)
}
}
func (r *Manager) ReleaseReopen() error {
r.mu.Lock()
defer r.mu.Unlock()
var errs []error
for _, rr := range r.releaseReopeners {
if err := rr.ReleaseReopen(); err != nil {
errs = append(errs, err)
}
}
return errors.Join(errs...)
}
func GetManager() *Manager {
return manager
}
func NewManager() *Manager {
return &Manager{
releaseReopeners: make(map[int64]ReleaseReopener),
}
}
var manager = NewManager()