> Hi,
> On 11/6/22 14:07, aitor wrote:
>> I started documenting libudev-compat in my website as part of the documentation about vdev:
>> https://www.gnuinos.org/libudev-compat/  <https://www.gnuinos.org/libudev-compat/>
>> This documentation is a work in progress.
> Jude Nelson was wondering whether or not is possible to use `sendfile(2)`:
>     *ssize_t sendfile(int */out_fd/*, int */in_fd/*, off_t **/offset/*, size_t */count/*); *
> in the function:
>     static int udev_monitor_fs_push_event( int fd, struct udev_monitor* monitor );
> of the file:

>     // send the contents of a file containing a serialized packet to the libudev client:
>     // * read the contents
>     // * send it along to the receiving struct udev_monitor
>     // NOTE: The file format is expected to be the same as a uevent packet:
>     //       * all newlines (\n) will be converted to null (\0), since that's how
>     //         the kernel sends it.
>     //       * the buffer is expected to be at most 8192 bytes long.
>     // return 0 on success
>     // return -errno on failure
>     // return -EMSGSIZE if the file is too big
>     // return -EBADMSG if the file is invalid
>     // return -EAGAIN if we'd block on send
>     // TODO: can we use sendfile(2)?

>     // send udev_device along
>     // TODO: sendfile(2)?
>     rc = udev_monitor_send_device( monitor, NULL, dev );
>     if( rc < 0 ) {
>        log_error("udev_monitor_send_device rc = %d", rc );
>     }
>     else {
>        rc = 0;
>     }
> into something like this:
>     off_t offset = 0;