Re: [Tipc-discussion] [BUG]send function cannot send messages whose size are more than 66000 bytes

[Nick Y. <ni...@ho...>]

Hi, Jon and Mark

In fact i have tested all kinds of socket type, including SOCK_STREAM, 
SOCK_SEQPACKET, SOCK_RDM and SOCK_DGRAM, and two connection styles ( 
connection-based, connectionless). The tests all failed. Whichever i using 
sendto or send to send big message ( > 66000 bytes), they always return -1 
and the errno will be 22 ( that is, "Invalid argument").

And i also tested the big size message using TCP/IP protocol, it works well.

Would you like to give me some suggestion to fix this bug?

Have a nice day!

Best regards,

Nick Yin

(BTW: this is another account of mine :-) )

>From: Jon Maloy <jon...@er...>
>To: "Yin, Hu" <hu...@in...>
>CC: tipc <tip...@li...>
>Subject: Re: [Tipc-discussion] [BUG]send function cannot send messages 
>whose size are more than 66000 bytes
>Date: Wed, 19 May 2004 09:55:21 -0400
>
>Hi Hu,
>It does fragment/defragment messages, but only up to a limit, depending
>on the socket type you are using. If you use message oriented sockets,
>i.e., SOCK_SEQPACKET,SOCK_RDM or SOCK_DGRAM, it will
>only fragment up to MAX_MSG_SIZE, which is indeed 66000 bytes.
>
>If you use SOCK_STREAM, it will fragment up to a size of 100 Mbyte
>per sent "chunk". I must admit that I have still not tested this feature
>beyond 66k (this is on my TODO list), so you may quite well run into
>bugs here.  Any feedback on this is welcome.
>
>Regards /Jon
>
>Yin, Hu wrote:
>
>>Hi Jon,
>>
>>I'm a intern of Intel China Software Lab. Now I'm doing TIPC's
>>validation job here.
>>
>>Today I meet a problem. When I write a little program to send/receive
>>different sizes message between two programs there will be error( errno:
>>22, "Invalid argument") when the size of message is more than 66000
>>bytes.
>>
>>Doesn't TIPC fragment and defragment messages?
>>
>>Best regards,
>>
>>Nick Yin
>>
>>Intel China Software Lab
>>
>>The content of this email message solely contains my own personal views,
>>and not those of my employer.
>>
>>
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>
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