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allwpilib/simulation/halsim_ws_server
Peter Johnson b2c3b2dd8e Use std::string_view and fmtlib across all libraries (#3402)
- Twine, StringRef, Format, and NativeFormatting have been removed
- Logging now uses fmtlib style formatting
- Nearly all uses of wpi::outs/errs have been replaced with fmt::print() or
std::puts()/std::fputs() (for unformatted strings).
- A wpi/fmt/raw_ostream.h header has been added to enable
fmt::print() with wpi::raw_ostream
2021-06-06 16:13:58 -07:00
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HAL WebSockets Server

This is an extension that provides a server version of a WebSockets API for transmitting robot hardware interface state over a network. See the Robot Hardware Interface WebSockets API specification for more details on the protocol.

Configuration

The WebSockets server has a number of configuration options available through environment variables.

HALSIMWS_SYSROOT: The local directory to serve non-websocket HTTP content from (e.g. HTML files) starting from /. Defaults to the sim subdirectory of the current working directory.

HALSIMWS_USERROOT: The local directory to serve non-websocket HTTP content from (e.g. HTML files) starting from /user/. Defaults to the sim/user subdirectory of the current working directory.

HALSIMWS_PORT: The port number to listen at. Defaults to 3300.

HALSIMWS_URI: The URI path to use for WebSockets connections. Defaults to "/wpilibws".