Assorted Multicast Fixes:

- Upgrade bundled OpenPGM to SVN r1135
- Timing fixes: Make all rate-limited and timer-pending operation wait
  for at least 1ms to avoid busy-waiting
- No distinction between sending and receiving sockets when setting
  up socket options (Receivers need to be able to send anyway when
  using PGMCC).
- Switch from fixed-rate transmission to using PGMCC for congestion
  control.
- Remove some obnoxious debugging outputs
- Some white space fixes
- Introduce a short waiting time before actually starting file transmission
  in order to allow enough SPM messages to be sent so that receivers
  can initialize properly.
- Fix MCASTFTANNOUNCE message to include full file name instead of basename.
- Fix generateMcastTransferID in order to gather more random IDs. PVSGUI
  may become confused if transfer IDs are reused.
- Properly dispose of clientFileReceiveDialog when multicast transfer is
  finished.
- Properly display transfer size in clientFileReceiveDialog

1 files changed, 28 insertions, 0 deletions

diff --git a/3rdparty/openpgm-svn-r1135-0001-sigsegv-in-txw.patch b/3rdparty/openpgm-svn-r1135-0001-sigsegv-in-txw.patch
new file mode 100644
index 0000000..af6d4fd
--- /dev/null
+++ b/3rdparty/openpgm-svn-r1135-0001-sigsegv-in-txw.patch
@@ -0,0 +1,28 @@
+Problem: OpenPGM generates a SIGSEGV upon accessing peer->sock->use_pgmcc.
+	 This is because the code assumes that the queue list entry comes first
+	 in the definition of struct pgm_peer_t, which it does not (anymore?).
+
+diff -Naur openpgm-r1135-pristine/pgm/receiver.c openpgm-svn-r1135/pgm/receiver.c
+--- openpgm-r1135-pristine/pgm/receiver.c	2010-09-06 20:41:52.000000000 +0200
++++ openpgm-svn-r1135/pgm/receiver.c	2010-09-24 12:40:07.000000000 +0200
+@@ -71,7 +71,9 @@
+ 	pgm_assert (NULL != window);
+ 	pgm_assert (NULL != window->ack_backoff_queue.tail);
+ 
+-	const struct pgm_peer_t* peer = (const struct pgm_peer_t*)window->ack_backoff_queue.tail;
++	const struct pgm_peer_t* peer = (const struct pgm_peer_t*)window->ack_backoff_queue.tail->data;
++	pgm_assert (NULL != peer);
++
+ 	pgm_assert (peer->sock->use_pgmcc);
+ 	return peer->ack_rb_expiry;
+ }
+@@ -416,6 +418,9 @@
+ 					sock->ack_c_p);
+ 	peer->spmr_expiry = now + sock->spmr_expiry;
+ 
++/* Prepare ack_link */
++	peer->ack_link.data = peer;
++
+ /* add peer to hash table and linked list */
+ 	pgm_rwlock_writer_lock (&sock->peers_lock);
+ 	pgm_peer_t* entry = _pgm_peer_ref (peer);