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adapter_windows.go
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adapter_windows.go
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package bluetooth
import (
"errors"
"fmt"
"github.com/go-ole/go-ole"
"github.com/saltosystems/winrt-go"
"github.com/saltosystems/winrt-go/windows/devices/bluetooth/advertisement"
"github.com/saltosystems/winrt-go/windows/foundation"
)
type Adapter struct {
watcher *advertisement.BluetoothLEAdvertisementWatcher
connectHandler func(device Device, connected bool)
defaultAdvertisement *Advertisement
}
// DefaultAdapter is the default adapter on the system.
//
// Make sure to call Enable() before using it to initialize the adapter.
var DefaultAdapter = &Adapter{
connectHandler: func(device Device, connected bool) {
return
},
}
// Enable configures the BLE stack. It must be called before any
// Bluetooth-related calls (unless otherwise indicated).
func (a *Adapter) Enable() error {
return ole.RoInitialize(1) // initialize with multithreading enabled
}
func awaitAsyncOperation(asyncOperation *foundation.IAsyncOperation, genericParamSignature string) error {
var status foundation.AsyncStatus
// We need to obtain the GUID of the AsyncOperationCompletedHandler, but its a generic delegate
// so we also need the generic parameter type's signature:
// AsyncOperationCompletedHandler<genericParamSignature>
iid := winrt.ParameterizedInstanceGUID(foundation.GUIDAsyncOperationCompletedHandler, genericParamSignature)
// Wait until the async operation completes.
waitChan := make(chan struct{})
handler := foundation.NewAsyncOperationCompletedHandler(ole.NewGUID(iid), func(instance *foundation.AsyncOperationCompletedHandler, asyncInfo *foundation.IAsyncOperation, asyncStatus foundation.AsyncStatus) {
status = asyncStatus
close(waitChan)
})
defer handler.Release()
asyncOperation.SetCompleted(handler)
// Wait until async operation has stopped, and finish.
<-waitChan
if status != foundation.AsyncStatusCompleted {
return fmt.Errorf("async operation failed with status %d", status)
}
return nil
}
func (a *Adapter) Address() (MACAddress, error) {
// TODO: get mac address
return MACAddress{}, errors.New("not implemented")
}