Added utility methods to handle winrt::guid and nearby::uuid

PiperOrigin-RevId: 509583159

internal/platform/implementation/windows/utils.cc

@@ -26,6 +26,7 @@
 
 // Third party headers
 #include "absl/strings/ascii.h"
+#include "absl/strings/str_cat.h"
 #include "absl/strings/str_format.h"
 
 // Nearby connections headers
@@ -34,8 +35,10 @@
 #include "internal/platform/byte_array.h"
 #include "internal/platform/implementation/crypto.h"
 #include "internal/platform/logging.h"
+#include "internal/platform/uuid.h"
 #include "winrt/Windows.Foundation.Collections.h"
 #include "winrt/Windows.Networking.Connectivity.h"
+#include "winrt/base.h"
 
 namespace nearby {
 namespace windows {
@@ -173,6 +176,49 @@ std::vector<std::string> Get4BytesIpv4Addresses() {
   return result;
 }
 
+Uuid winrt_guid_to_nearby_uuid(const ::winrt::guid& guid) {
+  int64_t data1 = guid.Data1;
+  int64_t data2 = guid.Data2;
+  int64_t data3 = guid.Data3;
+
+  int64_t msb = ((data1 >> 24) & 0xff) << 56 | ((data1 >> 16) & 0xff) << 48 |
+                ((data1 >> 8) & 0xff) << 40 | ((data1)&0xff) << 32 |
+                ((data2 >> 8) & 0xff) << 24 | ((data2)&0xff) << 16 |
+                ((data3 >> 8) & 0xff) << 8 | (data3 & 0xff);
+
+  int64_t lsb =
+      ((int64_t)guid.Data4[0]) << 56 | ((int64_t)guid.Data4[1]) << 48 |
+      ((int64_t)guid.Data4[2]) << 40 | ((int64_t)guid.Data4[3]) << 32 |
+      ((int64_t)guid.Data4[4]) << 24 | ((int64_t)guid.Data4[5]) << 16 |
+      ((int64_t)guid.Data4[6]) << 8 | (int64_t)guid.Data4[7];
+
+  return Uuid(msb, lsb);
+}
+
+winrt::guid nearby_uuid_to_winrt_guid(Uuid uuid) {
+  winrt::guid guid;
+  uint64_t msb = uuid.GetMostSigBits();
+  guid.Data1 = ((msb >> 56) & 0xff) << 24 | ((msb >> 48) & 0xff) << 16 |
+               ((msb >> 40) & 0xff) << 8 | ((msb >> 32) & 0xff);
+  guid.Data2 = ((msb >> 24) & 0xff) << 8 | ((msb >> 16) & 0xff);
+  guid.Data3 = ((msb >> 8) & 0xff) << 8 | (msb & 0xff);
+  uint64_t lsb = uuid.GetLeastSigBits();
+  guid.Data4[0] = (lsb >> 56) & 0xff;
+  guid.Data4[1] = (lsb >> 48) & 0xff;
+  guid.Data4[2] = (lsb >> 40) & 0xff;
+  guid.Data4[3] = (lsb >> 32) & 0xff;
+  guid.Data4[4] = (lsb >> 24) & 0xff;
+  guid.Data4[5] = (lsb >> 16) & 0xff;
+  guid.Data4[6] = (lsb >> 8) & 0xff;
+  guid.Data4[7] = lsb & 0xff;
+  return guid;
+}
+
+bool is_nearby_uuid_equal_to_winrt_guid(const Uuid& uuid,
+                                     const ::winrt::guid& guid) {
+  return uuid == winrt_guid_to_nearby_uuid(guid);
+}
+
 ByteArray Sha256(absl::string_view input, size_t size) {
   ByteArray hash = nearby::Crypto::Sha256(input);
   return ByteArray{hash.data(), size};

internal/platform/implementation/windows/utils.h

@@ -23,6 +23,7 @@
 
 #include "absl/strings/string_view.h"
 #include "internal/platform/byte_array.h"
+#include "internal/platform/uuid.h"
 #include "winrt/Windows.Foundation.h"
 #include "winrt/base.h"
 
@@ -46,6 +47,14 @@ ByteArray Sha256(absl::string_view input, size_t size);
 std::vector<std::string> GetIpv4Addresses();
 std::vector<std::string> Get4BytesIpv4Addresses();
 
+// Help methods to convert between Uuid and winrt::guid
+Uuid winrt_guid_to_nearby_uuid(const ::winrt::guid& guid);
+winrt::guid nearby_uuid_to_winrt_guid(Uuid uuid);
+
+// Check whether Uuid and guid is the same value.
+bool is_nearby_uuid_equal_to_winrt_guid(const Uuid& uuid,
+                                     const ::winrt::guid& guid);
+
 namespace Constants {
 // The Id of the Service Name SDP attribute
 const uint16_t SdpServiceNameAttributeId = 0x100;

internal/platform/implementation/windows/utils_test.cc

@@ -15,11 +15,11 @@
 #include "internal/platform/implementation/windows/utils.h"
 
 #include <windows.h>
+
 #include <string>
 
 #include "gtest/gtest.h"
-
-// using ::nearby::windows::uint64_to_mac_address_string;
+#include "winrt/base.h"
 
 namespace nearby {
 namespace windows {
@@ -39,7 +39,7 @@ TEST(UtilsTests, MacAddressToString) {
 TEST(UtilsTests, StringToMacAddress) {
   // Arrange
   std::string input = "34:36:3B:C7:8C:71";
-  const uint64_t  expected = 0x000034363bc78c71;
+  const uint64_t expected = 0x000034363bc78c71;
 
   // Act
   uint64_t result = mac_address_string_to_uint64(input);
@@ -66,5 +66,21 @@ TEST(UtilsTests, IpDotdecimalTo4Bytes) {
   EXPECT_EQ(result, std::string(kIp4Bytes, 4));
 }
 
+TEST(UtilsTests, ConvertBetweenWinrtGuidAndNearbyUuidSuccessfully) {
+  Uuid uuid(0x123e4567e89b12d3, 0xa456426614174000);
+  winrt::guid guid("{123e4567-e89b-12d3-a456-426614174000}");
+
+  EXPECT_EQ(uuid, winrt_guid_to_nearby_uuid(guid));
+  EXPECT_EQ(nearby_uuid_to_winrt_guid(uuid), guid);
+  EXPECT_TRUE(is_nearby_uuid_equal_to_winrt_guid(uuid, guid));
+}
+
+TEST(UtilsTests, CompareWinrtGuidAndNearbyUuidSuccessfully) {
+  Uuid uuid(0x123e4567e89b12d3, 0xa456426614174000);
+  winrt::guid guid("123e4567-e89b-12d3-a456-426614074000");
+
+  EXPECT_NE(uuid, winrt_guid_to_nearby_uuid(guid));
+}
+
 }  // namespace windows
 }  // namespace nearby

internal/platform/uuid.cc

@@ -110,4 +110,6 @@ bool Uuid::operator==(const Uuid& rhs) const {
          GetLeastSigBits() == rhs.GetLeastSigBits();
 }
 
+bool Uuid::operator!=(const Uuid& rhs) const { return !(*this == rhs); }
+
 }  // namespace nearby

internal/platform/uuid.h

@@ -59,6 +59,7 @@ class Uuid final {
 
   // Hashable
   bool operator==(const Uuid &rhs) const;
+  bool operator!=(const Uuid &rhs) const;
   template <typename H>
   friend H AbslHashValue(H h, const Uuid &b) {
     return H::combine(std::move(h), b.most_sig_bits_, b.least_sig_bits_);