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From James Peach <jpe...@apache.org>
Subject Re: doubt about the api TSNetAccept and TSNetAcceptNamedProtocol .
Date Wed, 26 Jun 2013 00:12:09 GMT
On Jun 25, 2013, at 4:34 AM, Avinash Uttav <uttav.avinash99@gmail.com> wrote:

> Hi,
> I m trying to get the SPDY plugin working .  Kindly help ,I have been stuck at this for
very long . 
> After debugging I found out everytime the continuation handler is set as HttpAccept::main
event
> and the event passed to it is 202 but is NET_EVENT_ACCEPT.
> Why both the functions TSNetAccept and TSNetAcceptNamed Protocol not getting the EVENT
.... 
> TS_EVENT_NET_ACCEPT and connection data ..

I hacked up the spdy plugin to use TSNetAccept and the TSNetAccept API appeared to work correctly.
You are correct, there was a regression in TSNetAcceptNamed. I've fixed this in master <https://issues.apache.org/jira/browse/TS-1972>.

thanks,
James

> While I tried with TSHttpTxnIntercept its sending the correct event and data to the Spdy
plugin but is not usable for  this case ...
> Kindly Help me I have been stuck at this point for too long . Is there any configuration
settings that I m missing or its about something else . 
> 
> The situation is same when I use TSNetAccept  in spdy plugin instead of TSNetAcceptNamedProtocol
to avoid any possible ssl problems.
> 
> Running chrome in use-spdy=no-ssl  mode .
> 
> Here is the log upto initialization of connection to see that plugin got loaded perfectly
. (please ignore the comments added by me for debugging under my_tag and some printf statements
)
> 
> 
> Layout configuration
>           --prefix = '/home/avinash/ats'
>      --exec_prefix = '/home/avinash/ats'
>           --bindir = '/home/avinash/ats/bin'
>          --sbindir = '/home/avinash/ats/bin'
>       --sysconfdir = '/home/avinash/ats/etc/trafficserver'
>          --datadir = '/home/avinash/ats/share/trafficserver'
>       --includedir = '/home/avinash/ats/include'
>           --libdir = '/home/avinash/ats/lib'
>       --libexecdir = '/home/avinash/ats/libexec/trafficserver'
>    --localstatedir = '/home/avinash/ats/var'
>       --runtimedir = '/home/avinash/ats/var/trafficserver'
>           --logdir = '/home/avinash/ats/var/log/trafficserver'
>           --mandir = '/home/avinash/ats/man'
>          --infodir = '/home/avinash/ats/info'
>         --cachedir = '/home/avinash/ats/var/trafficserver'
> [TrafficServer] using root directory '/home/avinash/ats'
> [New Thread 0x7ffff5289700 (LWP 5799)]
> [Jun 25 17:02:08.628] Server {0x7ffff7fd1720} DEBUG: (http_init) proxy.config.http.redirection_enabled
= 0
> [Jun 25 17:02:08.628] Server {0x7ffff7fd1720} DEBUG: (http_init) proxy.config.http.number_of_redirections
= 1
> [Jun 25 17:02:08.628] Server {0x7ffff7fd1720} DEBUG: (http_init) proxy.config.http.post_copy_size
= 2048
> [Jun 25 17:02:08.633] Server {0x7ffff7fd1720} DEBUG: (dns) ink_dns_init: called with
init_called = 0
> [New Thread 0x7ffff3e61700 (LWP 5800)]
> [New Thread 0x7ffff3d60700 (LWP 5801)]
> [New Thread 0x7ffff3c5f700 (LWP 5802)]
> [New Thread 0x7ffff3b5e700 (LWP 5803)]
> [New Thread 0x7ffff3a5d700 (LWP 5804)]
> [New Thread 0x7ffff385b700 (LWP 5805)]
> [New Thread 0x7ffff3659700 (LWP 5806)]
> [New Thread 0x7ffff3457700 (LWP 5807)]
> [Jun 25 17:02:08.650] Server {0x7ffff7fd1720} DEBUG: (dns) localhost=Proxy1
> [Jun 25 17:02:08.650] Server {0x7ffff7fd1720} DEBUG: (dns) Round-robin nameservers =
0
> [New Thread 0x7ffff2e4e700 (LWP 5808)]
> [New Thread 0x7ffff2c4c700 (LWP 5809)]
> [New Thread 0x7ffff2a4a700 (LWP 5810)]
> [New Thread 0x7ffff2848700 (LWP 5811)]
> [New Thread 0x7ffff2646700 (LWP 5812)]
> [New Thread 0x7ffff2444700 (LWP 5813)]
> [New Thread 0x7ffff2242700 (LWP 5814)]
> [New Thread 0x7ffff2040700 (LWP 5815)]
> [Jun 25 17:02:08.674] Server {0x7ffff7fd1720} DEBUG: (ssl) setting SNI callbacks with
for ctx 0x7fffec0c9d20
> [Jun 25 17:02:08.674] Server {0x7ffff7fd1720} DEBUG: (ssl) indexed '*' with SSL_CTX 0x7fffec0c9d20
> [New Thread 0x7ffff1e3e700 (LWP 5816)]
> [New Thread 0x7ffff1b9b700 (LWP 5817)]
> do listen function[New Thread 0x7ffff1999700 (LWP 5818)]
> accepting loop eventdoing blocking acceptdo listen function[New Thread 0x7ffff1797700
(LWP 5819)]
> accepting loop eventdoing blocking accept[Jun 25 17:02:08.690] Server {0x7ffff7fd1720}
DIAG: (http) plugin loading = 1
> [Jun 25 17:02:08.690] Server {0x7ffff7fd1720} DIAG: (my_tag) plugin path = /home/avinash/ats/libexec/trafficserver/spdy.so
> [Jun 25 17:02:08.690] Server {0x7ffff7fd1720} DIAG: (my_tag) dll open path = /home/avinash/ats/libexec/trafficserver/spdy.so
> [Jun 25 17:02:08.690] Server {0x7ffff7fd1720} DIAG: (my_tag) dll open RTLD_NOW = 2
> [Jun 25 17:02:08.713] Server {0x7ffff7fd1720} DIAG: (spdy.plugin) TSPluginInit:392 initializing
> [Jun 25 17:02:08.713] Server {0x7ffff7fd1720} DIAG: (spdy.plugin) TSPluginInit:418 registered
named protocol endpoint for spdy/2
> [Jun 25 17:02:08.713] Server {0x7ffff7fd1720} DIAG: (my_tag) the accept port is 18100
> [New Thread 0x7ffff0c61700 (LWP 5820)]
> [New Thread 0x7ffff0b60700 (LWP 5821)]
> do listen function[New Thread 0x7ffff091a700 (LWP 5822)]
> accepting loop eventdoing blocking accept[Jun 25 17:02:08.758] Server {0x7ffff7fd1720}
DEBUG: (dns) DNSHandler::startEvent: on thread 0
> [Jun 25 17:02:08.758] Server {0x7ffff7fd1720} DEBUG: (dns) open_con: opening connection107.108.3.17:53
> [Jun 25 17:02:08.758] Server {0x7ffff7fd1720} DEBUG: (dns) random port = 0.0.0.0:40438
> [Jun 25 17:02:08.758] Server {0x7ffff7fd1720} DEBUG: (dns) opening connection 107.108.3.17:53SUCCEEDED
for 0
> [Switching to Thread 0x7ffff3e61700 (LWP 5800)]
> 
> 
> 
> 
> 
> 
> Here is the backtrace when the event 202 is passed to HttpAccept and not Plugin(SPDY
plugin) 
> 
> 
> 
> (gdb) bt
> #0  HttpAccept::mainEvent (this=0x7fffec139220, event=202, data=0x10c9e10) at HttpAccept.cc:43
> #1  0x00000000004e1c28 in Continuation::handleEvent (this=0x7fffec139220, event=202,
data=0x10c9e10) at ../iocore/eventsystem/I_Continuation.h:146
> #2  0x00000000006bd5f5 in UnixNetVConnection::acceptEvent (this=0x10c9e10, event=1, e=0x10a3a50)
at UnixNetVConnection.cc:974
> #3  0x00000000004e1c28 in Continuation::handleEvent (this=0x10c9e10, event=1, data=0x10a3a50)
at ../iocore/eventsystem/I_Continuation.h:146
> #4  0x00000000006dbc51 in EThread::process_event (this=0x7ffff4266010, e=0x10a3a50, calling_code=1)
at UnixEThread.cc:142
> #5  0x00000000006dbea5 in EThread::execute (this=0x7ffff4266010) at UnixEThread.cc:194
> #6  0x00000000006dae60 in spawn_thread_internal (a=0x105cf60) at Thread.cc:88
> #7  0x00007ffff76789ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
> #8  0x00007ffff557821d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
> #9  0x0000000000000000 in ?? ()
> 
> Thank You .


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