Function hello_producer

tests/c_api/sample_plugin.cpp:25–35

/* ---- producer callbacks ------------------------------------------------ */

static int hello_producer(lmpfs_handle_t /*eng*/, lmpfs_plugin_buffer_t* out) {
    const char msg[] = "Hello from a MemNixFS plugin!\n"
                       "Loaded from sample_plugin.dll, served at\n"
                       "/plugins/sample_plugin/hello.txt.\n";
    out->length  = sizeof(msg) - 1;
    out->data    = std::malloc(out->length);
    if (!out->data) return -1;
    std::memcpy(out->data, msg, out->length);
    out->free_fn = nullptr;       /* default to free() */
    return 0;
}

static int pid_count_producer(lmpfs_handle_t eng, lmpfs_plugin_buffer_t* out) {
    int n = lmpfs_process_count(eng);