[Portmonitor] Envelope is lost on receiver

[drdanz]

When connecting a portmonitor on the receiver side, the envelope is lost.

[apaikan]

@drdanz would you show me your example?
I have tried the following example and the envelope works fine:

• Console 1

$ yarpdev --device test_grabber --width 1 --height 1 --framerate 1 --stamp

• Console 2

$ yarp read /r envelope
yarp: Port /r active at tcp://10.255.72.102:10005
yarp: Receiving input from /grabber to /r using tcp+recv.portmonitor+context.monitors+file.bot_modifier
||| did not find bot_modifier
in create!
2 1460637.03642 [mat] [rgb] (3 8 8 1 1) {0 0 0 1 4 6 0 6} "modified from Lua :)"
3 1460637.03742 [mat] [rgb] (3 8 8 1 1) {0 0 0 1 4 6 0 6} "modified from Lua :)"
4 1460637.03842 [mat] [rgb] (3 8 8 1 1) {0 0 0 1 4 6 0 6} "modified from Lua :)"
...

• Console 3

yarp connect /grabber /r tcp+recv.portmonitor+context.monitors+file.bot_modifier

[drdanz]

Sorry, my fault. The issue was actually that for some linking reason the carrier was loaded only on the sender side (even if both processes were running on the same machine using the same lib) and the manager shows that the ports are connected even if the connect failed.

[drdanz]

Duplicate of #909