Function SocketAPM_sendfile

libraries/AP_Scripting/lua_bindings.cpp:975–993

socket sendfile, for offloading file send to AP_Networking */

  socket sendfile, for offloading file send to AP_Networking
 */
int SocketAPM_sendfile(lua_State *L) {
    binding_argcheck(L, 2);

    SocketAPM *ud = *check_SocketAPM(L, 1);

    auto *p = (luaL_Stream *)luaL_checkudata(L, 2, LUA_FILEHANDLE);
    int fd = p->f->fd;

    bool ret = fd != -1 && AP::network().sendfile(ud, fd);
    if (ret) {
        // the fd is no longer valid. The lua script must
        // still call close() to release the memory from the
        // socket
        p->f->fd = -1;
    }

    lua_pushboolean(L, ret);
    return 1;
}

/*
  receive from a socket to a lua string