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From Samisa Abeysinghe <sam...@wso2.com>
Subject Re: Writing web services with C++
Date Thu, 24 Apr 2008 10:51:23 GMT
Looking at the trace, it looks like the problem is in the get instance 
method of the service.

Samisa...

alebu wrote:
> Hmm, don't know if that what you need (based on axis2c-1.3.0 code):
>
> Program terminated with signal 11, Segmentation fault.
> #0  0x746163696c707061 in ?? ()
> (gdb) backtrace
> #0  0x746163696c707061 in ?? ()
> #1  0x00002b960f68a0db in axis2_msg_recv_make_new_svc_obj 
> (msg_recv=<value optimized out>, env=0x676310, msg_ctx=<value 
> optimized out>)
>     at msg_recv.c:166
> #2  0x00002b960f68a579 in 
> axis2_raw_xml_in_out_msg_recv_invoke_business_logic_sync 
> (msg_recv=0x674650, env=0x676310, msg_ctx=0x676ff0,
>     new_msg_ctx=0x6829b0) at raw_xml_in_out_msg_recv.c:99
> #3  0x00002b960f68a2b1 in axis2_msg_recv_receive_impl 
> (msg_recv=0x674650, env=0x676310, msg_ctx=0x676ff0,
>     callback_recv_param=<value optimized out>) at msg_recv.c:319
> #4  0x00002b960f681a75 in axis2_engine_receive (engine=0x6803c0, 
> env=0x676310, msg_ctx=0x676ff0) at engine.c:297
> #5  0x00002b960f557542 in 
> axis2_http_transport_utils_process_http_post_request (env=0x676310, 
> msg_ctx=0x676ff0,
>     in_stream=<value optimized out>, out_stream=<value optimized out>, 
> content_type=0x676530 "text/xml;charset=UTF-8",
>     content_length=<value optimized out>, soap_action_header=0x677650,
>     request_uri=0x6773c0 
> "http://127.0.0.1:9090/axis2/services/uniservice") at 
> http_transport_utils.c:583
> #6  0x00002b960f55587e in axis2_http_worker_process_request 
> (http_worker=0x676190, env=0x676310, svr_conn=0x676350,
>     simple_request=0x676490) at http_worker.c:400
> #7  0x00002b960f8cd26e in axis2_svr_thread_worker_func (thd=0x676160, 
> data=0x674c20) at http_svr_thread.c:254
> #8  0x00002b960faf6143 in start_thread () from /lib64/libpthread.so.0
> #9  0x00002b960fedf74d in clone () from /lib64/libc.so.6
> #10 0x0000000000000000 in ?? ()
> ------------
> I will try the same with 1.3.1-RC2 now
>
> On Wed, Apr 23, 2008 at 10:09 AM, Manjula Peiris <manjula@wso2.com 
> <mailto:manjula@wso2.com>> wrote:
>
>     Hi alebu,
>
>     If it segfaults can you send us the gdb backtrace ? BTW, another RC of
>     1.3.1 will be available soon.
>
>     Thanks,
>     -Manjula.
>
>
>     On Wed, 2008-04-23 at 09:55 +0200, alebu wrote:
>     > Link to 1.3.1 you gave is broken for me.
>     > Now I got slightly different problem.
>     > After compiling using g++ for compiler and linker (probably i was
>     > using gcc/g++ earlier and thats was the problem)
>     > I simply have segmentaion fault before any of my custom code is
>     > executed. First row of generated with WSDL2C invoke
>     > method was logging function and it is not executed. So, as I
>     > understand, problem occurs somewhere before invoke call.
>     > Compiling the same code with the same parameters but using gcc works
>     > fine. I should mention that code in both cases is
>     > C code. All declarations are covered with
>     > #ifdef __cplusplus
>     > extern "C" {
>     > #endif
>     > //code
>     > #ifdef __cplusplus
>     > }
>     > #endif
>     > In axis2c logs last LIVE line is:
>     > engine.c(670) End:axis2_engine_invoke_phases
>     > engine.c(648) Start:axis2_engine_invoke_phases
>     > engine.c(670) End:axis2_engine_invoke_phases
>     > class_loader.c(140) Object loaded successfully
>     > ... and no any error messages
>     >
>     > Any ideas? I could try the same with axis2c 1.3.1 but I need a
>     link to
>     > it (on website only 1.3.0 is available)
>     > Compiler options are (fragment from Eclipse/C log):
>     > Invoking: GCC C Compiler
>     > g++ -I/opt/axis2c-1.3.0/include/axis2-1.3.0 -O0 -g3 -Wall -c
>     > -fmessage-length=0 -fPIC -MMD -MP -MF"src/adb_field_type.d"
>     > -MT"src/adb_field_type.d" -o"src/adb_field_type.o"
>     >
>     > And linking log part is:
>     > Invoking: GCC C Linker
>     > g++ -L/opt/axis2c-1.3.0/lib -L/home/BEA/tuxedo9.1/lib -shared
>     > -o"libmyservice.so"  ./src/adb_field_type.o ./src/adb_serve.o
>     ./src/adb_serveResponse.o ./src/adb_serve_req_type.o
>     ./src/adb_serve_resp_type.o ./src/axis2_skel_uniservice.o
>     ./src/axis2_svc_skel_uniservice.o   -ldl -lbuft -lfml -lfml32
>     -lengine -ltux -lpthread -laxutil -laxis2_axiom -laxis2_engine
>     -laxis2_parser -laxis2_http_sender -laxis2_http_receiver
>     -laxis2_libxml2
>     >
>     > Some additional libraries relative to BEA Tuxedo are included, but I
>     > don't think that they are the problem.
>     >
>     >
>     > On Mon, Apr 14, 2008 at 4:08 PM, Samisa Abeysinghe
>     <samisa@wso2.com <mailto:samisa@wso2.com>>
>     > wrote:
>     >         What are the compiler options you used when compiling the
>     >         service?
>     >
>     >         We have added the dlerror to the log in 1.3.1.
>     <http://1.3.1.> The RC is
>     >         available, can you try with that?
>     >
>     >         Samisa...
>     >
>     >         alebu wrote:
>     >
>     >                 Hi list.
>     >                 I have such a situation:
>     >                 I have some web-service which was generated from
>     WSDL
>     >                 using WSDL2C utility.
>     >                 Later I decided to write part of this
>     web-service with
>     >                 C++. Before functions that uses
>     >                 C++ code I put:
>     >                 #ifdef __cplusplus
>     >                 extern "C"
>     >                 #endif
>     >                 Then I tried to compile using g++. During
>     compilation
>     >                 some errors were found, but
>     >                 all of them was about incorrect conversion from
>     void*
>     >                 into axis2 types.
>     >                 When I fixed them (I hope) but when I call this
>     >                 web-service I got axis error:
>     >                 ...
>     >                         <faultcode>soapenv:Server</faultcode>
>     >                         <faultstring>Failed in creating
>     >                 DLL</faultstring>
>     >                 ...
>     >                 In axis2.log only one message was interesting
>     for me:
>     >                 raw_xml_in_out_msg_recv.c(115) Impl object for
>     service
>     >                 'myService' not set in message receiver. 100 ::
>     Failed
>     >                 in creating DLL
>     >
>     >                 I understand that it probably was'nt very wise to
>     >                 compile .c files using g++ but, compilation was
>     >                 sucessful, so I wonder
>     >                 where possible problem can be.
>     >                 Is it possible at all to compile axis2/C web serice
>     >                 from C++ sources using C++ possibilities?
>     >
>     >                
>     ------------------------------------------------------------------------
>     >
>     >                 No virus found in this incoming message.
>     >                 Checked by AVG. Version: 7.5.519 / Virus Database:
>     >                 269.22.13/1376 - Release Date: 4/13/2008 1:45 PM
>     >
>     >
>     >
>     >         --
>     >         Samisa Abeysinghe Director, Engineering; WSO2 Inc.
>     >
>     >         http://www.wso2.com/ - "The Open Source SOA Company"
>     >
>     >
>     >
>     >
>     >        
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> ------------------------------------------------------------------------
>
> No virus found in this incoming message.
> Checked by AVG. 
> Version: 7.5.524 / Virus Database: 269.23.4/1394 - Release Date: 4/23/2008 7:16 PM
>   


-- 
Samisa Abeysinghe 
Director, Engineering; WSO2 Inc.

http://www.wso2.com/ - "The Open Source SOA Company"


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