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47 lines
1.6 KiB
Go
47 lines
1.6 KiB
Go
/*
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Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
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Copyright (C) ITsysCOM GmbH
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package services
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import (
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"sync"
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)
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// NewStateDependencies constructs a StateDependencies struct
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func NewStateDependencies(servStates []string) (stDeps *StateDependencies) {
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stDeps = &StateDependencies{stateDeps: make(map[string]chan struct{})}
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for _, stateID := range servStates {
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stDeps.stateDeps[stateID] = make(chan struct{})
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}
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return
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}
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// StateDependencies enhances a service with state dependencies management
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type StateDependencies struct {
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stateDeps map[string]chan struct{} // listeners for various states of the service
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stateDepsMux sync.RWMutex // protects stateDeps
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}
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// RegisterStateDependency will be called by a service interested by specific stateID of the service
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func (sDs *StateDependencies) StateChan(stateID string) (retChan chan struct{}) {
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sDs.stateDepsMux.RLock()
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retChan = sDs.stateDeps[stateID]
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sDs.stateDepsMux.RUnlock()
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return
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}
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