when to call ngx_handle_write_event?i am not really understanded.

Re: when to call ngx_handle_write_event?i am not really understanded.

l.jay Yuan — Tue, 05 Jun 2012 08:14:01 -0400

3Q again, :D

2012/6/5 Vladimir Shebordaev :
> 2012/6/5 l.jay Yuan :
>> soga, my src\os\win32\ is download from
>> https://github.com/hehaiqiang/nginx, where is the official source for
>> win32?
>
> Not sure about win32 specific sources, but you can get stock nginx 1.3.1 from
>
> svn://svn.nginx.org/nginx/trunk
>
>>
>> 2012/6/5 Vladimir Shebordaev :
>>> 2012/6/5 l.jay Yuan :
>>>> okay, 3Q.
>>>> another question, in ngx_wsasend.c 's ngx_wsasend function
>>>>
>>>> #if 0 // is test code?or really should do it?
>>>> if ((size_t) n < size) {
>>>> wev->ready = 0;
>>>> }
>>>> #endif
>>>>
>>>
>>> As of the current release 'ready' flag is reset there. You should
>>> update nginx sources.
>>>
>>> ngx_handle_write_event() belongs to upper layer interface and is
>>> anyways expected to be called.
>>>
>>>> 2012/6/5 Vladimir Shebordaev :
>>>>> 2012/6/5 l.jay Yuan :
>>>>>> sorry, fix: call ngx_handle_write_event?
>>>>>>
>>>>>> 2012/6/5 l.jay Yuan :
>>>>>>> if i do not call ngx_handle_write_event the ngx_connection_t 's
>>>>>>> ngx_event_t *write will never be handler.
>>>>>>> it means after c->send(c, buf, n) then call c->send(c, buf, n)?
>>>>>>>
>>>>>
>>>>> Yes, you should firstly process the data then update the connection
>>>>> state for the next event, i.e. call ngx_handle_write_event()
>>>>>
>>>>>>> 2012/6/5 Vladimir Shebordaev :
>>>>>>>> Hi!
>>>>>>>>
>>>>>>>> ngx_handle_write_event() is the event processiong state machine
>>>>>>>> interface function that is to proper update event and connection
>>>>>>>> states after write event is fired and the data has been probably
>>>>>>>> written to the corresponding descriptor. It can optionally update
>>>>>>>> send_lowat option on the connection socket.
>>>>>>>>
>>>>>>>> --
>>>>>>>> Regards,
>>>>>>>> Vladimir
>>>>>>>>
>>>>>>>>
>>>>>>>> 2012/6/5 l.jay Yuan :
>>>>>>>>> when to call ngx_handle_write_event?i am not really understanded.
>>>>>>>>> who can explain me?
>>>>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> nginx-devel mailing list
>>>>> nginx-devel@nginx.org
>>>>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>>>>
>>>> _______________________________________________
>>>> nginx-devel mailing list
>>>> nginx-devel@nginx.org
>>>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>>>>
>>>
>>> _______________________________________________
>>> nginx-devel mailing list
>>> nginx-devel@nginx.org
>>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>>
>> _______________________________________________
>> nginx-devel mailing list
>> nginx-devel@nginx.org
>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>>
>
> _______________________________________________
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Re: when to call ngx_handle_write_event?i am not really understanded.

Vladimir Shebordaev — Tue, 05 Jun 2012 08:04:01 -0400

2012/6/5 l.jay Yuan :
> soga, my src\os\win32\ is download from
> https://github.com/hehaiqiang/nginx, where is the official source for
> win32?

Not sure about win32 specific sources, but you can get stock nginx 1.3.1 from

svn://svn.nginx.org/nginx/trunk

>
> 2012/6/5 Vladimir Shebordaev :
>> 2012/6/5 l.jay Yuan :
>>> okay, 3Q.
>>> another question, in ngx_wsasend.c 's ngx_wsasend function
>>>
>>> #if 0 // is test code?or really should do it?
>>> if ((size_t) n < size) {
>>> wev->ready = 0;
>>> }
>>> #endif
>>>
>>
>> As of the current release 'ready' flag is reset there. You should
>> update nginx sources.
>>
>> ngx_handle_write_event() belongs to upper layer interface and is
>> anyways expected to be called.
>>
>>> 2012/6/5 Vladimir Shebordaev :
>>>> 2012/6/5 l.jay Yuan :
>>>>> sorry, fix: call ngx_handle_write_event?
>>>>>
>>>>> 2012/6/5 l.jay Yuan :
>>>>>> if i do not call ngx_handle_write_event the ngx_connection_t 's
>>>>>> ngx_event_t *write will never be handler.
>>>>>> it means after c->send(c, buf, n) then call c->send(c, buf, n)?
>>>>>>
>>>>
>>>> Yes, you should firstly process the data then update the connection
>>>> state for the next event, i.e. call ngx_handle_write_event()
>>>>
>>>>>> 2012/6/5 Vladimir Shebordaev :
>>>>>>> Hi!
>>>>>>>
>>>>>>> ngx_handle_write_event() is the event processiong state machine
>>>>>>> interface function that is to proper update event and connection
>>>>>>> states after write event is fired and the data has been probably
>>>>>>> written to the corresponding descriptor. It can optionally update
>>>>>>> send_lowat option on the connection socket.
>>>>>>>
>>>>>>> --
>>>>>>> Regards,
>>>>>>> Vladimir
>>>>>>>
>>>>>>>
>>>>>>> 2012/6/5 l.jay Yuan :
>>>>>>>> when to call ngx_handle_write_event?i am not really understanded.
>>>>>>>> who can explain me?
>>>>>>>>
>>>>
>>>> _______________________________________________
>>>> nginx-devel mailing list
>>>> nginx-devel@nginx.org
>>>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>>>
>>> _______________________________________________
>>> nginx-devel mailing list
>>> nginx-devel@nginx.org
>>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>>>
>>
>> _______________________________________________
>> nginx-devel mailing list
>> nginx-devel@nginx.org
>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>
> _______________________________________________
> nginx-devel mailing list
> nginx-devel@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>

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Re: when to call ngx_handle_write_event?i am not really understanded.

l.jay Yuan — Tue, 05 Jun 2012 07:56:00 -0400

soga, my src\os\win32\ is download from
https://github.com/hehaiqiang/nginx, where is the official source for
win32?

2012/6/5 Vladimir Shebordaev :
> 2012/6/5 l.jay Yuan :
>> okay, 3Q.
>> another question, in ngx_wsasend.c 's ngx_wsasend function
>>
>> #if 0 // is test code?or really should do it?
>> if ((size_t) n < size) {
>> wev->ready = 0;
>> }
>> #endif
>>
>
> As of the current release 'ready' flag is reset there. You should
> update nginx sources.
>
> ngx_handle_write_event() belongs to upper layer interface and is
> anyways expected to be called.
>
>> 2012/6/5 Vladimir Shebordaev :
>>> 2012/6/5 l.jay Yuan :
>>>> sorry, fix: call ngx_handle_write_event?
>>>>
>>>> 2012/6/5 l.jay Yuan :
>>>>> if i do not call ngx_handle_write_event the ngx_connection_t 's
>>>>> ngx_event_t *write will never be handler.
>>>>> it means after c->send(c, buf, n) then call c->send(c, buf, n)?
>>>>>
>>>
>>> Yes, you should firstly process the data then update the connection
>>> state for the next event, i.e. call ngx_handle_write_event()
>>>
>>>>> 2012/6/5 Vladimir Shebordaev :
>>>>>> Hi!
>>>>>>
>>>>>> ngx_handle_write_event() is the event processiong state machine
>>>>>> interface function that is to proper update event and connection
>>>>>> states after write event is fired and the data has been probably
>>>>>> written to the corresponding descriptor. It can optionally update
>>>>>> send_lowat option on the connection socket.
>>>>>>
>>>>>> --
>>>>>> Regards,
>>>>>> Vladimir
>>>>>>
>>>>>>
>>>>>> 2012/6/5 l.jay Yuan :
>>>>>>> when to call ngx_handle_write_event?i am not really understanded.
>>>>>>> who can explain me?
>>>>>>>
>>>
>>> _______________________________________________
>>> nginx-devel mailing list
>>> nginx-devel@nginx.org
>>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>>
>> _______________________________________________
>> nginx-devel mailing list
>> nginx-devel@nginx.org
>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>>
>
> _______________________________________________
> nginx-devel mailing list
> nginx-devel@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx-devel

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Re: when to call ngx_handle_write_event?i am not really understanded.

Vladimir Shebordaev — Tue, 05 Jun 2012 07:48:00 -0400

2012/6/5 l.jay Yuan :
> okay, 3Q.
> another question, in ngx_wsasend.c 's ngx_wsasend function
>
> #if 0 // is test code?or really should do it?
> if ((size_t) n < size) {
> wev->ready = 0;
> }
> #endif
>

As of the current release 'ready' flag is reset there. You should
update nginx sources.

ngx_handle_write_event() belongs to upper layer interface and is
anyways expected to be called.

> 2012/6/5 Vladimir Shebordaev :
>> 2012/6/5 l.jay Yuan :
>>> sorry, fix: call ngx_handle_write_event?
>>>
>>> 2012/6/5 l.jay Yuan :
>>>> if i do not call ngx_handle_write_event the ngx_connection_t 's
>>>> ngx_event_t *write will never be handler.
>>>> it means after c->send(c, buf, n) then call c->send(c, buf, n)?
>>>>
>>
>> Yes, you should firstly process the data then update the connection
>> state for the next event, i.e. call ngx_handle_write_event()
>>
>>>> 2012/6/5 Vladimir Shebordaev :
>>>>> Hi!
>>>>>
>>>>> ngx_handle_write_event() is the event processiong state machine
>>>>> interface function that is to proper update event and connection
>>>>> states after write event is fired and the data has been probably
>>>>> written to the corresponding descriptor. It can optionally update
>>>>> send_lowat option on the connection socket.
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Vladimir
>>>>>
>>>>>
>>>>> 2012/6/5 l.jay Yuan :
>>>>>> when to call ngx_handle_write_event?i am not really understanded.
>>>>>> who can explain me?
>>>>>>
>>
>> _______________________________________________
>> nginx-devel mailing list
>> nginx-devel@nginx.org
>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>
> _______________________________________________
> nginx-devel mailing list
> nginx-devel@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>

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Re: when to call ngx_handle_write_event?i am not really understanded.

l.jay Yuan — Tue, 05 Jun 2012 07:30:01 -0400

okay, 3Q.
another question, in ngx_wsasend.c 's ngx_wsasend function

#if 0 // is test code?or really should do it?
if ((size_t) n < size) {
wev->ready = 0;
}
#endif

2012/6/5 Vladimir Shebordaev :
> 2012/6/5 l.jay Yuan :
>> sorry, fix: call ngx_handle_write_event?
>>
>> 2012/6/5 l.jay Yuan :
>>> if i do not call ngx_handle_write_event the ngx_connection_t 's
>>> ngx_event_t *write will never be handler.
>>> it means after c->send(c, buf, n) then call c->send(c, buf, n)?
>>>
>
> Yes, you should firstly process the data then update the connection
> state for the next event, i.e. call ngx_handle_write_event()
>
>>> 2012/6/5 Vladimir Shebordaev :
>>>> Hi!
>>>>
>>>> ngx_handle_write_event() is the event processiong state machine
>>>> interface function that is to proper update event and connection
>>>> states after write event is fired and the data has been probably
>>>> written to the corresponding descriptor. It can optionally update
>>>> send_lowat option on the connection socket.
>>>>
>>>> --
>>>> Regards,
>>>> Vladimir
>>>>
>>>>
>>>> 2012/6/5 l.jay Yuan :
>>>>> when to call ngx_handle_write_event?i am not really understanded.
>>>>> who can explain me?
>>>>>
>
> _______________________________________________
> nginx-devel mailing list
> nginx-devel@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx-devel

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Re: when to call ngx_handle_write_event?i am not really understanded.

Vladimir Shebordaev — Tue, 05 Jun 2012 07:26:01 -0400

2012/6/5 l.jay Yuan :
> sorry, fix: call ngx_handle_write_event?
>
> 2012/6/5 l.jay Yuan :
>> if i do not call ngx_handle_write_event the ngx_connection_t 's
>> ngx_event_t *write will never be handler.
>> it means after c->send(c, buf, n) then call c->send(c, buf, n)?
>>

Yes, you should firstly process the data then update the connection
state for the next event, i.e. call ngx_handle_write_event()

>> 2012/6/5 Vladimir Shebordaev :
>>> Hi!
>>>
>>> ngx_handle_write_event() is the event processiong state machine
>>> interface function that is to proper update event and connection
>>> states after write event is fired and the data has been probably
>>> written to the corresponding descriptor. It can optionally update
>>> send_lowat option on the connection socket.
>>>
>>> --
>>> Regards,
>>> Vladimir
>>>
>>>
>>> 2012/6/5 l.jay Yuan :
>>>> when to call ngx_handle_write_event?i am not really understanded.
>>>> who can explain me?
>>>>

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Re: when to call ngx_handle_write_event?i am not really understanded.

l.jay Yuan — Tue, 05 Jun 2012 07:18:01 -0400

sorry, fix: call ngx_handle_write_event?

2012/6/5 l.jay Yuan :
> if i do not call ngx_handle_write_event the ngx_connection_t 's
> ngx_event_t *write will never be handler.
> it means after c->send(c, buf, n) then call c->send(c, buf, n)?
>
> 2012/6/5 Vladimir Shebordaev :
>> Hi!
>>
>> ngx_handle_write_event() is the event processiong state machine
>> interface function that is to proper update event and connection
>> states after write event is fired and the data has been probably
>> written to the corresponding descriptor. It can optionally update
>> send_lowat option on the connection socket.
>>
>> --
>> Regards,
>> Vladimir
>>
>>
>> 2012/6/5 l.jay Yuan :
>>> when to call ngx_handle_write_event?i am not really understanded.
>>> who can explain me?
>>>
>>> _______________________________________________
>>> nginx-devel mailing list
>>> nginx-devel@nginx.org
>>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>>>
>>
>> _______________________________________________
>> nginx-devel mailing list
>> nginx-devel@nginx.org
>> http://mailman.nginx.org/mailman/listinfo/nginx-devel

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Re: when to call ngx_handle_write_event?i am not really understanded.

l.jay Yuan — Tue, 05 Jun 2012 07:18:01 -0400

if i do not call ngx_handle_write_event the ngx_connection_t 's
ngx_event_t *write will never be handler.
it means after c->send(c, buf, n) then call c->send(c, buf, n)?

2012/6/5 Vladimir Shebordaev :
> Hi!
>
> ngx_handle_write_event() is the event processiong state machine
> interface function that is to proper update event and connection
> states after write event is fired and the data has been probably
> written to the corresponding descriptor. It can optionally update
> send_lowat option on the connection socket.
>
> --
> Regards,
> Vladimir
>
>
> 2012/6/5 l.jay Yuan :
>> when to call ngx_handle_write_event?i am not really understanded.
>> who can explain me?
>>
>> _______________________________________________
>> nginx-devel mailing list
>> nginx-devel@nginx.org
>> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>>
>
> _______________________________________________
> nginx-devel mailing list
> nginx-devel@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx-devel

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Re: when to call ngx_handle_write_event?i am not really understanded.

Vladimir Shebordaev — Tue, 05 Jun 2012 07:16:01 -0400

2012/6/5 l.jay Yuan :
> rc = WSASend(c->fd, &wsabuf, 1, (DWORD *) &n, 0, ovlp, NULL);
>

You'd better use platform-independent connection inteface here, i.e
ngx_send().

ngx_handle_write_event() is also platform-independent and is expected
to be invoked right after you've done with the current write event
processing in your module and are about to await for the next one.

> err = ngx_socket_errno;
>
> if (rc == 0) {
> if (ovlp != NULL) {
> wev->ovlp.posted_zero_byte = 1;
> wev->ready = 0;
> return NGX_AGAIN;
> }
>
> #if 0 // is test code?
> if ((size_t) n < size) {
> wev->ready = 0;
> }
> #endif
>
> 2012/6/5 l.jay Yuan :
>> when to call ngx_handle_write_event?i am not really understanded.
>> who can explain me?
>
> _______________________________________________
> nginx-devel mailing list
> nginx-devel@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>

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Re: when to call ngx_handle_write_event?i am not really understanded.

Vladimir Shebordaev — Tue, 05 Jun 2012 06:50:00 -0400

Hi!

ngx_handle_write_event() is the event processiong state machine
interface function that is to proper update event and connection
states after write event is fired and the data has been probably
written to the corresponding descriptor. It can optionally update
send_lowat option on the connection socket.

--
Regards,
Vladimir

2012/6/5 l.jay Yuan :
> when to call ngx_handle_write_event?i am not really understanded.
> who can explain me?
>
> _______________________________________________
> nginx-devel mailing list
> nginx-devel@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx-devel
>

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Re: when to call ngx_handle_write_event?i am not really understanded.

l.jay Yuan — Tue, 05 Jun 2012 06:30:01 -0400

rc = WSASend(c->fd, &wsabuf, 1, (DWORD *) &n, 0, ovlp, NULL);

err = ngx_socket_errno;

if (rc == 0) {
if (ovlp != NULL) {
wev->ovlp.posted_zero_byte = 1;
wev->ready = 0;
return NGX_AGAIN;
}

#if 0 // is test code?
if ((size_t) n < size) {
wev->ready = 0;
}
#endif

2012/6/5 l.jay Yuan :
> when to call ngx_handle_write_event?i am not really understanded.
> who can explain me?

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when to call ngx_handle_write_event?i am not really understanded.

l.jay Yuan — Tue, 05 Jun 2012 06:02:01 -0400

when to call ngx_handle_write_event?i am not really understanded.
who can explain me?

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