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//
// rhctl
//
// Copyright (C) 2009-2016 Christian Pointner <equinox@helsinki.at>
//
// This file is part of rhctl.
//
// rhctl is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// rhctl is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with rhctl. If not, see <http://www.gnu.org/licenses/>.
//
package main
import (
"flag"
"fmt"
"io/ioutil"
"log"
"os"
)
var (
rhl = log.New(os.Stderr, "[rhctl]\t", log.LstdFlags)
rhdl = log.New(ioutil.Discard, "[rhctl-dbg]\t", log.LstdFlags)
)
func init() {
if _, exists := os.LookupEnv("RHCTL_DEBUG"); exists {
rhdl.SetOutput(os.Stderr)
}
}
type envStringValue string
func newEnvStringValue(key, dflt string) *envStringValue {
if envval, exists := os.LookupEnv(key); exists {
return (*envStringValue)(&envval)
} else {
return (*envStringValue)(&dflt)
}
}
func (s *envStringValue) Set(val string) error {
*s = envStringValue(val)
return nil
}
func (s *envStringValue) Get() interface{} { return string(*s) }
func (s *envStringValue) String() string { return fmt.Sprintf("%s", *s) }
func main() {
configFile := newEnvStringValue("RHCTL_CONFIG_FILE", "/etc/rhctl/config.toml")
flag.Var(configFile, "conf", "path to the configuration file (environment: RHCTL_CONFIG_FILE)")
help := flag.Bool("help", false, "show usage")
flag.Parse()
if *help {
flag.Usage()
return
}
conf, err := ReadConfig(configFile.Get().(string))
if err != nil {
rhl.Println("Error reading configuration:", err.Error())
return
}
rhl.Printf("just started...")
rhdl.Printf("configuration: %+v", conf)
//**************************************************
// initializing essential parts
sw, err := SwitchInit(conf)
if err != nil {
rhl.Println("error initializing audio switch: ", err)
return
}
var servers []*PlayoutServer
for s, _ := range conf.Servers {
server, err := ServerInit(s, conf)
if err != nil {
rhl.Printf("error initializing playout-server(%s): %v", s, err)
return
}
servers = append(servers, server)
}
if len(servers) <= 0 {
rhl.Printf("Error: there is no playout server configured...")
return
}
ctrl := SwitchControlInit(conf, sw, servers)
// initializing non-essential parts, like control-interfaces aka clients
telnet := TelnetInit(conf, ctrl)
//**************************************************
// running essential parts
stop := make(chan bool)
go func() {
rhl.Printf("starting audioswitch handler")
sw.Run()
rhl.Printf("audioswitch handler has stopped")
stop <- true
}()
for _, server := range servers {
go func(server *PlayoutServer) {
rhl.Printf("starting playout-server(%s) handler", server.name)
server.Run()
rhl.Printf("playout-server(%s) handler has stopped", server.name)
stop <- true
}(server)
}
go func() {
rhl.Printf("starting switch control")
ctrl.Run()
rhl.Printf("switch control has stopped")
stop <- true
}()
// running non-essential parts
if conf.Clients.Telnet.Address != "" {
go func() {
rhl.Printf("starting telnet interface")
telnet.Run()
rhl.Printf("telnet interface just stopped")
}()
}
//**************************************************
<-stop
rhl.Printf("at least one essential part has stopped - bringing down the whole process")
}
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