mirror of
https://github.com/cgrates/cgrates.git
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117 lines
3.2 KiB
Go
117 lines
3.2 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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"fmt"
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"sync"
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"github.com/cgrates/cgrates/agents"
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"github.com/cgrates/cgrates/config"
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"github.com/cgrates/cgrates/servmanager"
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"github.com/cgrates/cgrates/utils"
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)
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// NewSIPAgent returns the sip Agent
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func NewSIPAgent(cfg *config.CGRConfig) *SIPAgent {
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return &SIPAgent{
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cfg: cfg,
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stateDeps: NewStateDependencies([]string{utils.StateServiceUP, utils.StateServiceDOWN}),
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}
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}
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// SIPAgent implements Agent interface
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type SIPAgent struct {
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mu sync.RWMutex
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cfg *config.CGRConfig
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sip *agents.SIPAgent
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oldListen string
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stateDeps *StateDependencies // channel subscriptions for state changes
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}
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// Start should handle the sercive start
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func (sip *SIPAgent) Start(shutdown *utils.SyncedChan, registry *servmanager.ServiceRegistry) (err error) {
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srvDeps, err := WaitForServicesToReachState(utils.StateServiceUP,
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[]string{
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utils.ConnManager,
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utils.FilterS,
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},
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registry, sip.cfg.GeneralCfg().ConnectTimeout)
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if err != nil {
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return
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}
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cm := srvDeps[utils.ConnManager].(*ConnManagerService).ConnManager()
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fs := srvDeps[utils.FilterS].(*FilterService).FilterS()
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sip.mu.Lock()
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defer sip.mu.Unlock()
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sip.oldListen = sip.cfg.SIPAgentCfg().Listen
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sip.sip, err = agents.NewSIPAgent(cm, sip.cfg, fs)
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if err != nil {
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return
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}
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go sip.listenAndServe(shutdown)
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return
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}
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func (sip *SIPAgent) listenAndServe(shutdown *utils.SyncedChan) {
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if err := sip.sip.ListenAndServe(); err != nil {
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utils.Logger.Err(fmt.Sprintf("<%s> error: <%s>", utils.SIPAgent, err.Error()))
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shutdown.CloseOnce() // stop the engine here
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}
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}
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// Reload handles the change of config
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func (sip *SIPAgent) Reload(shutdown *utils.SyncedChan, _ *servmanager.ServiceRegistry) (err error) {
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if sip.oldListen == sip.cfg.SIPAgentCfg().Listen {
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return
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}
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sip.mu.Lock()
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sip.sip.Shutdown()
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sip.oldListen = sip.cfg.SIPAgentCfg().Listen
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sip.sip.InitStopChan()
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sip.mu.Unlock()
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go sip.listenAndServe(shutdown)
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return
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}
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// Shutdown stops the service
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func (sip *SIPAgent) Shutdown(_ *servmanager.ServiceRegistry) (err error) {
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sip.mu.Lock()
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defer sip.mu.Unlock()
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sip.sip.Shutdown()
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sip.sip = nil
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return
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}
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// ServiceName returns the service name
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func (sip *SIPAgent) ServiceName() string {
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return utils.SIPAgent
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}
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// ShouldRun returns if the service should be running
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func (sip *SIPAgent) ShouldRun() bool {
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return sip.cfg.SIPAgentCfg().Enabled
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}
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// StateChan returns signaling channel of specific state
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func (sip *SIPAgent) StateChan(stateID string) chan struct{} {
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return sip.stateDeps.StateChan(stateID)
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}
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