Function findExecutableName

src/SFML/Window/Unix/WindowImplX11.cpp:120–151

Find the name of the current executable

// Find the name of the current executable
std::filesystem::path findExecutableName()
{
    // We use /proc/self/cmdline to get the command line
    // the user used to invoke this instance of the application
    const int file = ::open("/proc/self/cmdline", O_RDONLY | O_NONBLOCK);

    if (file < 0)
        return "sfml";

    std::vector<char> buffer(256, 0);
    std::size_t       offset = 0;
    ssize_t           result = 0;

    while ((result = read(file, &buffer[offset], 256)) > 0)
    {
        buffer.resize(buffer.size() + static_cast<std::size_t>(result), 0);
        offset += static_cast<std::size_t>(result);
    }

    ::close(file);

    if (offset)
    {
        buffer[offset] = 0;

        // Remove the path to keep the executable name only
        return basename(buffer.data());
    }

    // Default fallback name
    return "sfml";
}

// Get features supported by the current window manager
const std::vector<std::string>& getSupportedFeatures()