mirror of
https://github.com/cgrates/cgrates.git
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139 lines
3.6 KiB
Go
139 lines
3.6 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 Affero 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 Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://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/engine"
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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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// NewDiameterAgent returns the Diameter Agent
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func NewDiameterAgent(cfg *config.CGRConfig, filterSChan chan *engine.FilterS,
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shdChan *utils.SyncedChan, connMgr *engine.ConnManager, caps *engine.Caps,
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srvDep map[string]*sync.WaitGroup) servmanager.Service {
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return &DiameterAgent{
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cfg: cfg,
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filterSChan: filterSChan,
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shdChan: shdChan,
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connMgr: connMgr,
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caps: caps,
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srvDep: srvDep,
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}
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}
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// DiameterAgent implements Agent interface
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type DiameterAgent struct {
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sync.RWMutex
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cfg *config.CGRConfig
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filterSChan chan *engine.FilterS
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shdChan *utils.SyncedChan
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stopChan chan struct{}
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da *agents.DiameterAgent
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connMgr *engine.ConnManager
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caps *engine.Caps
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lnet string
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laddr string
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srvDep map[string]*sync.WaitGroup
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}
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// Start should handle the sercive start
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func (da *DiameterAgent) Start() (err error) {
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if da.IsRunning() {
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return utils.ErrServiceAlreadyRunning
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}
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filterS := <-da.filterSChan
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da.filterSChan <- filterS
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da.Lock()
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defer da.Unlock()
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return da.start(filterS, da.caps)
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}
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func (da *DiameterAgent) start(filterS *engine.FilterS, caps *engine.Caps) error {
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var err error
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da.da, err = agents.NewDiameterAgent(da.cfg, filterS, da.connMgr, caps)
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if err != nil {
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utils.Logger.Err(fmt.Sprintf("<%s> failed to initialize agent, error: %s",
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utils.DiameterAgent, err))
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return err
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}
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da.lnet = da.cfg.DiameterAgentCfg().ListenNet
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da.laddr = da.cfg.DiameterAgentCfg().Listen
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da.stopChan = make(chan struct{})
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go func(d *agents.DiameterAgent) {
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lnsErr := d.ListenAndServe(da.stopChan)
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if lnsErr != nil {
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utils.Logger.Err(fmt.Sprintf("<%s> error: %s",
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utils.DiameterAgent, lnsErr))
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da.shdChan.CloseOnce()
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}
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}(da.da)
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return nil
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}
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// Reload handles the change of config
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func (da *DiameterAgent) Reload() (err error) {
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da.Lock()
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defer da.Unlock()
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if da.lnet == da.cfg.DiameterAgentCfg().ListenNet &&
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da.laddr == da.cfg.DiameterAgentCfg().Listen {
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return
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}
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close(da.stopChan)
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filterS := <-da.filterSChan
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da.filterSChan <- filterS
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return da.start(filterS, da.caps)
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}
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// Shutdown stops the service
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func (da *DiameterAgent) Shutdown() (err error) {
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da.Lock()
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close(da.stopChan)
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da.da = nil
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da.Unlock()
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return // no shutdown for the momment
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}
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// IsRunning returns if the service is running
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func (da *DiameterAgent) IsRunning() bool {
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da.RLock()
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defer da.RUnlock()
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return da.da != nil
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}
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// ServiceName returns the service name
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func (da *DiameterAgent) ServiceName() string {
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return utils.DiameterAgent
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}
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// ShouldRun returns if the service should be running
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func (da *DiameterAgent) ShouldRun() bool {
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return da.cfg.DiameterAgentCfg().Enabled
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}
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