Nginx Timer is killing my request pool

[Tigran Bayburtsyan]

No this time I'm trying to do it with separate process by just sharing
memory between Nginx worker and my 3rd party excusable...
I'm making ngx_timer to send data when it will be received from shared
memory.

It works fine, but I can't figure out why my r->pool is null ?

I'm using Nginx 1.7 version.
Thanks for your help.

2015-02-22 1:02 GMT+04:00 tommy watson <tommywatson+nginx-devel at gmail.com>:

> Tigran,
>   are you still using fork() ? As you describe here:
> http://mailman.nginx.org/pipermail/nginx-devel/2015-February/006554.html
>
>  If so, as already explained, the other process is probably closing your
> request.
>
> Cheers.
>
>
> On Sat, Feb 21, 2015 at 2:55 PM, Tigran Bayburtsyan <
> tigran.bayburtsyan at gmail.com> wrote:
>
>> Hi All.
>>
>> I've created a function for adding my custom ngx_timer , but after 1st
>> time loop my r->pool is setting to NULL , also it sets NULL my
>> r->connection->log, and after second loop it throws exception on  *ngx_palloc
>> *because my r->pool is NULL.
>> I can't find out why, here is my function
>>
>> *void add_aling_event(ngx_event_t *e, ngx_http_request_t *r, void
>> (*handler), int timer)*
>> *{*
>> *    if(e)*
>> *    {*
>> *        ngx_add_timer(e, timer);*
>> *        return;*
>> *    }*
>> *    ngx_event_t *event=ngx_palloc(r->pool,sizeof(ngx_event_t));*
>> *    memset(event,0,sizeof(ngx_event_t));*
>> *    event->data=r;*
>> *    event->handler=handler;*
>> *    event->log=r->connection->log;*
>> *    ngx_add_timer(event, timer);*
>> *}*
>>
>> And I'm calling this function like this.
>>
>> static ngx_int_t ngx_http_aling_handler(ngx_http_request_t *r)
>> {
>>     ........
>>     ........
>>     add_aling_event(NULL, r, hack_func, 50);
>>     return NGX_AGAIN;
>> }
>>
>> void hack_func(ngx_event_t *e)
>> {
>>     ngx_http_request_t *r = e->data;
>>     ........
>>     ........
>>
>>     switch(shmLen[1])
>>     {
>>         case 1: // adding chain
>>         {
>>             ..........................
>> *            ..........................*
>>         };break;
>>         case 2: // adding last chain
>>         {
>>             ..........................
>> *            ..........................*
>>         };break;
>>         default:
>>         {
>>             add_aling_event(e, r, hack_func, 50);
>>         };break;
>>     }
>> }
>>
>> After 1 or 2 calls r->pool is sets to NULL .....
>>
>> Please help me figure out this issue.
>> Maybe I'm doing something wrong.
>> I've did this code using example here
>> https://github.com/tommywatson/nginx-hello-world-module/blob/master/ngx_http_hello_world_module.c#L104
>>
>>
>> Thanks.
>>
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>> nginx-devel at nginx.org
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>>
>
>
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