func main() {
flag.Parse()
d, err := dev.NewDevice(*device)
if err != nil {
log.Fatalf("can't new device : %s", err)
}
ble.SetDefaultDevice(d)
// Default to search device with name of Gopher (or specified by user).
filter := func(a ble.Advertisement) bool {
return strings.ToUpper(a.LocalName()) == strings.ToUpper(*name)
}
// If addr is specified, search for addr instead.
if len(*addr) != 0 {
filter = func(a ble.Advertisement) bool {
return strings.ToUpper(a.Address().String()) == strings.ToUpper(*addr)
}
}
// Scan for specified durantion, or until interrupted by user.
fmt.Printf("Scanning for %s...\n", *sd)
ctx := ble.WithSigHandler(context.WithTimeout(context.Background(), *sd))
cln, err := ble.Connect(ctx, filter)
if err != nil {
log.Fatalf("can't connect : %s", err)
}
go func() {
cln.Disconnected()
fmt.Printf("[ %s ] is disconnected \n", cln.Address())
}()
fmt.Printf("Discovering profile...\n")
p, err := cln.DiscoverProfile(true)
if err != nil {
log.Fatalf("can't discover profile: %s", err)
}
// Start the exploration.
explore(cln, p)
// Disconnect the connection. (On OS X, this might take a while.)
fmt.Printf("Disconnecting [ %s ]... (this might take up to few seconds on OS X)\n", cln.Address())
cln.CancelConnection()
}
func cmdConnect(c *cli.Context) error {
curr.client = nil
var cln ble.Client
var err error
ctx := ble.WithSigHandler(context.WithTimeout(context.Background(), c.Duration("tmo")))
if c.String("addr") != "" {
curr.addr = ble.NewAddr(c.String("addr"))
fmt.Printf("Dialing to specified address: %s\n", curr.addr)
cln, err = ble.Dial(ctx, curr.addr)
} else if filter(c) != nil {
fmt.Printf("Scanning with filter...\n")
if cln, err = ble.Connect(ctx, filter(c)); err == nil {
curr.addr = cln.Address()
fmt.Printf("Connected to %s\n", curr.addr)
}
} else if curr.addr != nil {
fmt.Printf("Dialing to implicit address: %s\n", curr.addr)
cln, err = ble.Dial(ctx, curr.addr)
} else {
return fmt.Errorf("no filter specified, and cached peripheral address")
}
if err == nil {
curr.client = cln
curr.clients[cln.Address().String()] = cln
}
go func() {
<-cln.Disconnected()
delete(curr.clients, cln.Address().String())
curr.client = nil
fmt.Printf("\n%s disconnected\n", cln.Address().String())
}()
return err
}