[CentOS] socket: write vs send
Michael D. Berger
m_d_berger_1900 at yahoo.com
Tue Apr 6 19:48:22 UTC 2010
On Tue, 06 Apr 2010 14:37:27 -0500, Les Mikesell 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?
No, I.m not sure. I found that send also sometimes crashes it.
Sorry for the misleading comment.
Mike.
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