func main() {
if err := rpio.Open(); err != nil {
log.Fatalf("Error: %v\n", err)
}
defer rpio.Close()
controllers := []commands.GarageDoorController{}
// takes one command line argument specifying the configuration file path
configFile := "/etc/garage-doors.conf"
if len(os.Args) == 2 {
configFile = os.Args[1]
}
conf := util.ParseConfig(configFile)
for _, door := range conf.Controllers.Garage_doors.Gpio_pins.Bcm {
controllers = append(controllers,
commands.ControllerFactory(door, conf.Controllers.Garage_doors.Trigger_time, conf.Controllers.Garage_doors.Force_time))
}
cpuCount := runtime.NumCPU()
if cpuCount < len(controllers) {
runtime.GOMAXPROCS(cpuCount)
} else {
runtime.GOMAXPROCS(len(controllers))
}
http.HandleFunc(conf.Endpoints.Paths.Control, func(w http.ResponseWriter, r *http.Request) {
if r.Method != httpPost {
fmt.Fprintf(w, "HTTP Method "+r.Method+" not valid for this endpoint.")
return
}
door, doorErr := strconv.Atoi(r.PostFormValue("door"))
if doorErr != nil || door >= len(controllers) {
fmt.Fprintf(w, "Error parsing door number.")
return
}
force, forceErr := strconv.ParseBool(r.PostFormValue("force"))
if forceErr != nil {
fmt.Fprintf(w, "Error parsing force value.")
return
}
log.Println("Opening door " + r.PostFormValue("door") + ", force: " + r.PostFormValue("force"))
go controllers[door].Trigger(force)
fmt.Fprintf(w, "door: %d, force: %v", door, force)
})
log.Println("Starting server at " + conf.Endpoints.Host)
log.Fatal(http.ListenAndServe(conf.Endpoints.Host, nil))
}
func main() {
// Open and map memory to access gpio, check for errors
if err := rpio.Open(); err != nil {
fmt.Println(err)
os.Exit(1)
}
go func() {
// TODO(jbd): Use mdns after https://github.com/hashicorp/mdns/issues/44
// is resolved for communication.
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
ms := r.URL.Query().Get("t")
if ms != "" {
t, _ := strconv.Atoi(ms)
tick = time.Duration(t) * time.Millisecond
}
io.WriteString(w, "ok\n")
})
log.Fatal(http.ListenAndServe(":8080", nil))
}()
// Unmap gpio memory when done
defer rpio.Close()
// Set pin to output mode
for _, p := range pins {
p.Output()
}
for {
for _, p := range pins {
p.High()
time.Sleep(tick)
p.Low()
}
}
}