Mrmesh dev

[elinekupers]

I use MATLAB R2020b on a M1 MacbookPro with Rosetta, and the wine hq app (https://www.winehq.org/) to open ./mrMesh/meshserver/mrMeshSrv.exe. (See also my response to this issue: #264).

The function "mrMesh/tcpToolbox/pnet_readMsg.m" kills the server if the wait time is too short.
I get the error message in the MATLAB command window below:

meshVisualize(vw.mesh{1})
mrmInitMesh: Add mesh actor...
Warning: could not read msg header.  Header length 0
 
> In pnet_readMsg (line 31)
In mrMesh (line 128)
In mrmSet (line 247)
In mrmInitMesh (line 29)
In meshVisualize (line 43) 
Warning: Error receiving server reply header. 
> In mrMesh (line 131)
In mrmSet (line 247)
In mrmInitMesh (line 29)
In meshVisualize (line 43) 
Warning: could not read msg header.  Header length 0
 
> In pnet_readMsg (line 31)
In mrMesh (line 70)
In mrmSet (line 389)
In mrmInitMesh (line 30)
In meshVisualize (line 43) 
Error using mrMesh (line 73)
Error receiving handshake reply.  Message length 0

Error in mrmSet (line 389)
         mrMesh(host, windowID, 'enable_origin_arrows', p);

Error in mrmInitMesh (line 30)
mrmSet(msh,'origin lines',0);

Error in meshVisualize (line 43)
[msh, lights] = mrmInitMesh(msh,backColor);

I fixed error by increasing the setreadtimeout from 2 to 4, for the "else" statement in vistasoft/mrMesh/tcpToolbox/pnet_readMsg.m (lines 24-26):

% Don't wait forever before aborting:
if ispc, pnet(con,'setreadtimeout',4);
else     pnet(con,'setreadtimeout',4);
end

As this makes the if statement obsolete, I changed it into a single line command:

% Don't wait forever before aborting:
pnet(con,'setreadtimeout',4);

[digital-pro]

Eline -- It's definitely helpful to increase these timeouts. However, we've found that in some cases, the timeouts need to be even longer, so it's not clear what the new default value should be.