Method writeChunk

src/fl/net/http/chunked_encoding.cpp.hpp:186–210

}

size_t ChunkedWriter::writeChunk(fl::span<const u8> data, fl::span<u8> out) {
    // Format: <size-hex>\r\n<data>\r\n
    char sizeHex[32];
    int hexLen = fl::snprintf(sizeHex, sizeof(sizeHex), "%zx\r\n", data.size());
    size_t totalNeeded = static_cast<size_t>(hexLen) + data.size() + 2;
    if (out.size() < totalNeeded) {
        return 0;
    }

    u8* dst = out.data();

    // Write size hex + CRLF
    memcpy(dst, sizeHex, static_cast<size_t>(hexLen));
    dst += hexLen;

    // Write data
    memcpy(dst, data.data(), data.size());
    dst += data.size();

    // Write trailing CRLF
    *dst++ = '\r';
    *dst++ = '\n';

    return totalNeeded;
}

size_t ChunkedWriter::writeFinal(fl::span<u8> out) {
    if (out.size() < FINAL_SIZE) {