Function read_socket_text

ds4_server.c:12139–12147

     * effective prompt suffix evaluated by ds4_session_sync() is written into
     * the live KV cache and can be reused by the next request. */
    j->req.cache_read_tokens = cached;
    j->req.cache_write_tokens = prompt_tokens > cached ? prompt_tokens - cached : 0;

    const double t0 = now_sec();
    uint64_t trace_id = trace_begin(s, j, cached, prompt_tokens, &cache_diag,
                                    cache_source, disk_cached, disk_cache_path);
    char ctx_span[48];
    request_ctx_span(ctx_span, sizeof(ctx_span), cached, prompt_tokens);
    server_prefill_progress progress = {
        .srv = s,
        .slot = slot,
        .kind = j->req.kind,