Re: [UDT] OSX compilation errors

[Ben R. <ben...@so...>]

I have changed the socket buffers, and have been doing some experiments,
used sysctl -w kern.ipc.maxsockbuf=

I have 2 osx machines, I can using the test tools ( sendfile and
recvfile ) I can transfer on the same machine.
ie sendfile
and
recvfile 127.0.01 9000 ./iso goo.iso

From one osx machine to the other I have some problems but am looking
into that, ruled out any layer2 problems, so am looking further into it.

More interestingly I have two Linux machines and get good speeds between
them, esp in High BDP enviroments ( 150ms +), however using the same
version of the code, from osx to linux and linux to osx I get
Segmentation fault :-(. I guess this could be a Big Endian Little Endian
problem. The sendfile end is the end that seg faults each time.

I have tested with appserver and appclient and that does work osx to
linux and linux to osx, so I am guessing the bug is in sendfile, any
thoughts ?

regards
Ben Roeder

Yunhong Gu wrote:
> 
> Yes, this is a known issue too (I should have add a known issue list...)
> 
> The reason is that UDT tries to allocate a rather large socket buffer
> (setsockopt) that OS X does not support. On Linux or Windows, they will
> set the socket buffer to the maximum system value; however, OS X will
> return error.
> 
> So the solution is, you can either change your system parameter to allow
> larger socket buffer size (at least 20MB), or set UDT option (UDT_SNDBUF
> and UDT_RCVBUF) to smaller values (e.g., 64KB). See the commented
> setsockopt lines in appserver and appclient for examples.
> 
> Thanks
> Yunhong
> 
> 
> On Wed, 15 Mar 2006, Ben Roeder wrote:
> 
>> Hi Yunhong,
>> Thanks for that, I now can compile the 2.3 under OS X
>> The issue I am now seeing is
>> ./recvfile 10.99.4.70  9000 ./iso.iso iso.iso
>> connect: Connection setup failure: unable to create/configure UDP
>> socket: No buffer space available.
>>
>> I am looking into it, but is this also a known issue, or am I the only
>> person on Os X. I remember it used to compile and work before xmas
>>
>> regards
>> Ben Roeder
>>
>> Yunhong Gu wrote:
>>
>>>
>>>
>>> in ./src/channel.cpp, around line 66, remove
>>>
>>>  #define socklen_t int
>>>
>>> for BSD.
>>>
>>> OS X has started to use socklen_t instead of int.
>>>
>>> There may be more problem, if so, in ./src/Makefile
>>>
>>> use
>>>  $(C++) -dynamiclib -o libudt.dylib -lstdc++ -lpthread -lm $^
>>> to replace the original "libtool ..." line.
>>>
>>> Thanks,
>>> Yunhong
>>>
>>>
>>> On Wed, 15 Mar 2006, Ben Roeder wrote:
>>>
>>>> Hi,
>>>> Is anyone else compiling for OSX at the moment ?
>>>> I am getting errors with version 2.3
>>>> I am compiling on a powerPC machine running tiger
>>>> the xcode version is 2.0
>>>> xcode IDE 514.0
>>>> xcode core 515.0
>>>> tool support 514.0
>>>>
>>>> I am compiling with gcc in a terminal
>>>> gcc is
>>>> Usage: powerpc-apple-darwin8-gcc-4.0.0
>>>> The make flags are as follows
>>>> make -e os=BSD arch=POWERPC
>>>>
>>>> I see the following error, is this known issue ?
>>>> channel.cpp is version 1.20
>>>> ~/projects/udt2 ben$ make -e os=BSD arch=POWERPC
>>>> make -C  src all
>>>> g++ -fPIC -Wall -DBSD -finline-functions  -DTRACE -DNO_BUSY_WAITING
>>>> -mcpu=powerpc channel.cpp -c
>>>> channel.cpp: In member function `int CChannel::recvfrom(CPacket&,
>>>> sockaddr*) const':
>>>> channel.cpp:301: error: invalid conversion from 'int*' to 'socklen_t*'
>>>> channel.cpp:301: error:   initializing argument 6 of 'ssize_t
>>>> recvfrom(int, void*, size_t, int, sockaddr*, socklen_t*)'
>>>> channel.cpp: In member function `int CChannel::getSndBufSize()':
>>>> channel.cpp:344: error: invalid conversion from 'int*' to 'socklen_t*'
>>>> channel.cpp:344: error:   initializing argument 5 of 'int
>>>> getsockopt(int, int, int, void*, socklen_t*)'
>>>> channel.cpp: In member function `int CChannel::getRcvBufSize()':
>>>> channel.cpp:357: error: invalid conversion from 'int*' to 'socklen_t*'
>>>> channel.cpp:357: error:   initializing argument 5 of 'int
>>>> getsockopt(int, int, int, void*, socklen_t*)'
>>>> channel.cpp: In member function `void
>>>> CChannel::getSockAddr(sockaddr*) const':
>>>> channel.cpp:380: error: invalid conversion from 'int*' to 'socklen_t*'
>>>> channel.cpp:380: error:   initializing argument 3 of 'int
>>>> getsockname(int, sockaddr*, socklen_t*)'
>>>> channel.cpp: In member function `void
>>>> CChannel::getPeerAddr(sockaddr*) const':
>>>> channel.cpp:391: error: invalid conversion from 'int*' to 'socklen_t*'
>>>> channel.cpp:391: error:   initializing argument 3 of 'int
>>>> getpeername(int, sockaddr*, socklen_t*)'
>>>> make[1]: *** [channel.o] Error 1
>>>> make: *** [src.all] Error 2
>>>>
>>>> same version is fine on debian sarge
>>>> regards
>>>> Ben Roeder
>>>>
>>>>
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