Commit graph

5 commits

Author SHA1 Message Date
William Manley
8328eab2de socketsrc: Add support for GstNetControlMessageMeta
multisocketsink now understands the new GstNetControlMessageMeta to allow
sending control messages (ancillary data) with data when writing to Unix
domain sockets.

Thanks to glib's `GSocketControlMessage` abstraction the code introduced
in this commit is entirely portable and doesn't introduce and additional
dependencies or conditionally compiled code, even if it is unlikely to be
of much use on non-UNIX systems.
2015-03-14 13:23:28 +01:00
William Manley
a297b0545f socketsrc: Add connection-closed-by-peer signal
This provides notification that the socket in use was closed by the peer
and gives an opportunity to replace it with a new one which is not
closed, allowing reading from many sockets in order.

I use this in pulsevideo to implement reconnection logic to handle the
pulsevideo service dieing, such that is can be restarted without
disrupting downstream.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=739546
2015-03-13 20:05:00 +01:00
William Manley
a19ac4b85c socketsrc: Tidy up usage of g_object_unref/g_clear_object and locking
This is clearer, and should make future changes safer.  No functional
change intended.

See https://bugzilla.gnome.org/show_bug.cgi?id=739546
2015-03-13 20:05:00 +01:00
William Manley
0c054aa00d socketsrc: Refactor to simplify
* Don't bother polling, just do a blocking read, the `GCancellable` will
  take care of unlocking.  This should also be faster on MS Windows where
  the GIO documentation for `g_socket_get_available_bytes` states: "Note
  that on Windows, this function is rather inefficient in the UDP case".

* Implement `GstPushSrc.fill` rather than `GstPushSrc.create`.  This means
  that we will be using the downstream allocator which may be more
  efficient.  It also means that socketsrc is likely to respect its
  "blocksize" property (assuming that there is enough data available).

See https://bugzilla.gnome.org/show_bug.cgi?id=739546
2015-03-13 20:05:00 +01:00
William Manley
7c10499ecd tcp: Add element socketsrc
`socketsrc` can be considered a source counterpart to `multisocketsink`.
It can be considered a generalization of `tcpclientsrc` and
`tcpserversrc`:  it contains all the logic required to communicate over
the socket but none of the logic for creating the sockets/establishing
the connection in the first place, allowing the user to accomplish this
externally in whatever manner they wish making it applicable to other
types of sockets besides TCP.

This commit essentially copies the implementation directly from
tcpserversrc.  Later patches will tidy the implementation up and
re-implement `tcpclientsrc` and `tcpserversrc` in terms of `socketsrc`.

See https://bugzilla.gnome.org/show_bug.cgi?id=739546
2015-03-13 20:05:00 +01:00