memory leak
-----------
Key: AXIS2C-1150
URL: https://issues.apache.org/jira/browse/AXIS2C-1150
Project: Axis2-C
Issue Type: Bug
Components: platforms/windows
Affects Versions: 1.4.0
Environment: windows platform + axis2c-1.4
Reporter: yong yang
Fix For: 1.4.0
Currently the web service client writen with axis2c-1.4 will result in 2763
bytes memory leak each web service call. I have fixed most of the memory leak.
I have put some brief descriptions for each memory leak as follows. I also
attach these source files I modified to fix these memory leak. Could you please
verify that?
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;
}
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