darwin: add advertising

adapter_darwin.go

@@ -19,6 +19,7 @@ type Adapter struct {
 	peripheralFoundHandler func(*Adapter, ScanResult)
 	scanChan               chan error
 	poweredChan            chan error
+	defaultAdvertisement   *Advertisement
 
 	// connectMap is a mapping of peripheralId -> chan cbgo.Peripheral,
 	// used to allow multiple callers to call Connect concurrently.
@@ -73,6 +74,10 @@ func (a *Adapter) Enable() error {
 	return nil
 }
 
+func (a *Adapter) Address() (MACAddress, error) {
+	return MACAddress{}, nil
+}
+
 // CentralManager delegate functions
 
 type centralManagerDelegate struct {

gap_darwin.go

@@ -249,3 +249,57 @@ func (pd *peripheralDelegate) DidWriteValueForCharacteristic(_ cbgo.Peripheral,
 		}
 	}
 }
+
+// Advertisement encapsulates a single advertisement instance.
+type Advertisement struct {
+	adapter    *Adapter
+	properties cbgo.AdvData
+}
+
+// DefaultAdvertisement returns the default advertisement instance but does not
+// configure it.
+func (a *Adapter) DefaultAdvertisement() *Advertisement {
+	if a.defaultAdvertisement == nil {
+		a.defaultAdvertisement = &Advertisement{
+			adapter: a,
+		}
+	}
+	return a.defaultAdvertisement
+}
+
+// Configure this advertisement.
+//
+// On MacOS, it is not possible to set the advertisement interval,
+// the manufacturer data nor the service data.
+func (a *Advertisement) Configure(options AdvertisementOptions) error {
+	var serviceUUIDs []cbgo.UUID
+	for _, uuid := range options.ServiceUUIDs {
+		bytes := uuid.Bytes()
+		cbgoUUID := cbgo.UUID(bytes[:])
+		serviceUUIDs = append(serviceUUIDs, cbgoUUID)
+	}
+
+	a.properties.LocalName = options.LocalName
+	a.properties.ServiceUUIDs = serviceUUIDs
+
+	return nil
+}
+
+// Start advertisement. May only be called after it has been configured.
+// Note that this function fails silently.
+func (a *Advertisement) Start() error {
+	err := a.adapter.pm.StartAdvertising(a.properties)
+
+	if err != nil {
+		return errors.New("CoreBluetooth reports not advertising after start request")
+	}
+
+	return nil
+}
+
+// Stop advertisement. May only be called after it has been started.
+func (a *Advertisement) Stop() error {
+	a.adapter.pm.StopAdvertising()
+
+	return nil
+}

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/saltosystems/winrt-go v0.0.0-20240509164145-4f7860a3bd2b
 	github.com/soypat/cyw43439 v0.0.0-20240609122733-da9153086796
 	github.com/tinygo-org/cbgo v0.0.4
-	golang.org/x/crypto v0.12.0
+	golang.org/x/crypto v0.26.0
 	tinygo.org/x/drivers v0.26.1-0.20230922160320-ed51435c2ef6
 	tinygo.org/x/tinyfont v0.4.0
 	tinygo.org/x/tinyterm v0.3.0
@@ -20,6 +20,8 @@ require (
 	github.com/soypat/seqs v0.0.0-20240527012110-1201bab640ef // indirect
 	github.com/tinygo-org/pio v0.0.0-20231216154340-cd888eb58899 // indirect
 	golang.org/x/exp v0.0.0-20230728194245-b0cb94b80691 // indirect
-	golang.org/x/sys v0.11.0 // indirect
-	golang.org/x/term v0.11.0 // indirect
+	golang.org/x/sys v0.23.0 // indirect
+	golang.org/x/term v0.23.0 // indirect
 )
+
+replace github.com/tinygo-org/cbgo => /Users/ofek/projects/go/cbgo

go.sum

@@ -5,6 +5,7 @@ github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
 github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 h1:El6M4kTTCOh6aBiKaUGG7oYTSPP8MxqL4YI3kZKwcP4=
 github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510/go.mod h1:pupxD2MaaD3pAXIBCelhxNneeOaAeabZDe5s4K6zSpQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
@@ -27,17 +28,82 @@ github.com/tinygo-org/cbgo v0.0.4 h1:3D76CRYbH03Rudi8sEgs/YO0x3JIMdyq8jlQtk/44fU
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 github.com/tinygo-org/pio v0.0.0-20231216154340-cd888eb58899/go.mod h1:LU7Dw00NJ+N86QkeTGjMLNkYcEYMor6wTDpTCu0EaH8=
+github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
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