Aaron Yu
b8627563a0
From the crash call stack, the app crashed at the line `windows_socket = nullptr;` This is because the previous line `windows_socket_.Close();` has already released all unmanaged resources associated with the StreamSocket object. https://learn.microsoft.com/en-us/uwp/api/windows.networking.sockets.streamsocket.close?view=winrt-22621#remarks By RAII, assigning `windows_socket_` to nullptr is equivalent to calling `delete` on the StreamSocket allocated on the heap again, which results in null pointer exception `Exception infoEXCEPTION_ACCESS_VIOLATION_READ @0x00000000` because it has already been released in the previous line by Close(). PiperOrigin-RevId: 508454142
Nearby C++ Library
The repository contains the Nearby project C++ library source code. This is not an officially supported Google product.
About the Nearby Project
Nearby Connection
Nearby Connections is a high level protocol on top of Bluetooth/WiFi that acts as a medium-agnostic socket. Devices are able to advertise, scan, and connect with one another over any shared medium (eg. BT <-> BT). Once connected, the two devices share a list of all supported mediums and attempt to upgrade to the one with the highest bandwidth (eg. BT -> WiFi). The connection is encrypted, reliable, and fully duplex. BYTE, FILE, and STREAM payloads are all supported and will be chunked & transferred internally and recombined on the receiving device. See Nearby Connections Overview for more information.
Checkout the source tree
git clone https://github.com/google/nearby
cd nearby
git submodule update --init --recursive
Building Nearby, Unit Testing and Sample Apps
We support multiple platforms including Linux, iOS & Windows.
Building for Linux
Currently we support building from source using [bazel] (https://bazel.build). Other BUILD system such as cmake may be added later.
Prerequisites:
- Bazel
- clang with support for c++ 17+
- Openssl libcrypto.so (-lssl;-lcrypto).
To build the Nearby Connection Core library:
CC=clang CXX=clang++ bazel build -s --check_visibility=false //connections:core --spawn_strategy=standalone --verbose_failures
Building for macOS and iOS
Currently we support building with Swift Package Manager.
Prerequisites:
- Xcode. Available from Apple Store.
- Google Protobuf Compiler (protoc). If you have homebrew installed, you can do
brew install protobuf.
To build the Nearby Connection library:
swift build
Limitation
The only Medium supported is Wifi LAN.
Last Updated: December 7, 2022