Hi I found that there is a memory leak in axis2-c 1.4. When I call the web
service using the client written with axis2-c 1.4, there is a total 2763
bytes memory leak each web service call. I have traced down each memory leak
and fixed them. Could you please verify them? If it is right, could you
please merge them into the latest version of axis2-c source codes.
best regards
donald
1) memory trace report
FNH: ptr deallocated ..\..\util\src\allocator.c: 93
FNH: ptr deallocated ..\..\util\src\allocator.c: 93
FNH: ptr deallocated ..\..\util\src\allocator.c: 93
Final Report
MLK: 00CA5E00 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00CA6040 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00CA60D0 17 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00CA65B8 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00CA6648 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00CA66D8 42 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00CA6780 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00CA6810 9 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E81468 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E814F8 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E81588 42 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E81630 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E816C0 4 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E81740 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E817D0 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E81860 33 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E81900 16 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E81990 4 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E86EA8 20 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E88C28 53 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E89DF0 271 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E89F80 44 bytes allocated ..\..\util\src\allocator.c: 76
MLK: 00E88E18 2048 bytes allocated ..\..\util\src\allocator.c: 76
Total allocations : 2856
Max memory allocation: 1120765 (1094K)
Total leak : 2763
2) solution
2.1) 2048 bytes
Reason: the memories allocated for *callback_ctx->in_stream* and *
callback_ctx->chunked_stream* are not de-allocated
Solution: 1) modified source file:
src\core\transport\http\util\http_transport_utils.c
2) Function: *axis2_http_transport_utils_create_soap_msg*
3) Here I added the following codes just before "*return soap_envelope;*"
*//free the memeory*
* if(callback_ctx->in_stream)*
* axutil_stream_free(callback_ctx->in_stream, env);*
* if(callback_ctx->chunked_stream)*
* axutil_http_chunked_stream_free(callback_ctx->chunked_stream,
env);*
2.2) 271 bytes
Reason: the memory allocated for *mime_parser->soap_body_str* was not
de-allocated
Solution:
1)modified source file name: *axiom\src\attachments\mime_parser.c*
2)modified Function: *axiom_mime_parser_free*
3) explicitly free the memory. Here I added the following codes just before
"*mime_parser->soap_body_str = NULL;*"
*//free the soap body string*
* if(mime_parser->soap_body_str)*
* AXIS2_FREE(env->allocator, mime_parser->soap_body_str);*
2.3)53 bytes
Reason: the memory allocated for the *mime_boundary* are not de-allocated
Solution:
1) modified source file: *
src\core\transport\http\util\http_transport_utils.c*
2) modified Function: *axis2_http_transport_utils_process_http_post_request*
3) I added the following code at the end of "*if (mime_boundary)*" statement
*
*
* //free mime boudry*
* AXIS2_FREE(env->allocator, mime_boundary);*
**
2.4) 44 bytes
Reason: the memory allocated for *http_client->data_stream* is not
de-allocated.
Solution:
1)modified source file : *src\core\transport\http\sender\http_client.c*
2)modified function: *axis2_http_client_free*
3) I added the following codes
*//free data stream*
* if(http_client->data_stream)*
* {*
* axutil_stream_free(http_client->data_stream, env);*
* }*
2.5). 17 bytes
Reason: axis2 set the *options->soap_action* using
*axutil_string_clone(soap_action,
env)*. Therefore the value of *options->soap_action->** **ref_count* will be
2. When calling *axutil_string_free* function in the
*axis2_options_free*function, the memory for
*options->soap_action* will not be de-allocated as the value of *ref_count*is 1.
Solution:
1)modified source file: *src\core\clientapi\options.c*
2)modified function: *axis2_options_set_soap_action*
3) I changed the following code in *axis2_options_set_soap_action* function
from
* if (soap_action)*
* {*
* options->soap_action = axutil_string_clone(soap_action, env);**
*
*}*
To
* if (soap_action)*
* {*
* options->soap_action = soap_action; *
* }*
