[CentOS] socket: write vs send

Wed Apr 7 12:11:16 UTC 2010
Ross Walker <rswwalker at gmail.com>

On Apr 6, 2010, at 3:37 PM, Les Mikesell <lesmikesell at gmail.com> wrote:

> On 4/6/2010 2:16 PM, Michael D. Berger wrote:
>> On CentOS 5.4,
>> Linux 2.6.18-164.6.1.el5 #1 SMP Tue Nov 3 16:18:27 EST 2009
>>    i686 i686 i386 GNU/Linux
>>
>> In man 2 send I find:
>>
>>   The  send()  call  may  be  used only when the socket is in a  
>> connected
>>   state (so that the intended recipient is known).  The  only   
>> difference
>>   between  send()  and write() is the presence of flags.  With zero  
>> flags
>>   parameter,    send()    is    equivalent     to     write().
>>
>> In some complex server software, if the client disconnects:
>>     send: delivers errno == ECONNRESET
>> but
>>     write: crashes the server process.
>>
>> So it is not really equivalent.  Any thoughts on this?
>
> Are you sure it isn't the normal signal associated with a write when  
> the
> other end closes first that is crashing the process?

Yes it's probably broken pipe that is casing the signal.

-Ross