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Added data section filter in BLE scanning

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PiperOrigin-RevId: 553660098
This commit is contained in:
Guogang Li
2023-08-09 19:11:48 -07:00
committed by Copybara-Service
parent f18ab07873
commit 5b155f9a4a
1 changed files with 16 additions and 3 deletions
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internal/platform/implementation/windows/ble_v2.cc
+16 -3
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@@ -47,6 +47,7 @@
#include "winrt/Windows.Devices.Bluetooth.Advertisement.h"
#include "winrt/Windows.Devices.Bluetooth.h"
#include "winrt/Windows.Foundation.Collections.h"
#include "winrt/Windows.Storage.Streams.h" // NOLINT(misc-include-cleaner)
namespace nearby {
namespace windows {
@@ -68,6 +69,8 @@ using ::winrt::Windows::Devices::Bluetooth::Advertisement::
BluetoothLEAdvertisementDataSection;
using ::winrt::Windows::Devices::Bluetooth::Advertisement::
BluetoothLEAdvertisementDataTypes;
using ::winrt::Windows::Devices::Bluetooth::Advertisement::
BluetoothLEAdvertisementFilter; // NOLINT(misc-include-cleaner)
using ::winrt::Windows::Devices::Bluetooth::Advertisement::
BluetoothLEAdvertisementPublisher;
using ::winrt::Windows::Devices::Bluetooth::Advertisement::
@@ -230,9 +233,19 @@ bool BleV2Medium::StartScanning(const Uuid& service_uuid,
// Active mode indicates that scan request packets will be sent to query for
// Scan Response
watcher_.ScanningMode(BluetoothLEScanningMode::Active);
::winrt::Windows::Devices::Bluetooth::BluetoothSignalStrengthFilter filter;
filter.SamplingInterval(TimeSpan(std::chrono::seconds(2)));
watcher_.SignalStrengthFilter(filter);
BluetoothLEAdvertisementDataSection data_section;
data_section.DataType(0x16);
DataWriter data_writer; // NOLINT(misc-include-cleaner)
std::array<char, 16> service_id_data = service_uuid_.data();
data_writer.WriteByte(service_id_data[3] & 0xff);
data_writer.WriteByte(service_id_data[2] & 0xff);
data_section.Data(data_writer.DetachBuffer());
BluetoothLEAdvertisement advertisement;
advertisement.DataSections().Append(data_section);
BluetoothLEAdvertisementFilter advertisement_filter;
advertisement_filter.Advertisement(advertisement);
watcher_.AdvertisementFilter(advertisement_filter);
watcher_.Start();
is_watcher_started_ = true;