C语言 轴 2C 内存泄漏

Question

我正在使用 Axis2C。我正在使用一个简单的 Web 服务客户端进行一些测试来测试这个框架。

我使用一些示例和 Apache 提供的文档编写了客户端。客户端工作正常，我决定用 valgrind 测试它以确保内存管理正确。

我使用示例和文档中提到的函数来释放内存（在这种特殊情况下）：

// to free the requst struct.
 adb_EncryptRequest_free(request, env);
 // to free the stub.
 axis2_stub_free(stub, env);
 // to free the environment.
 axutil_env_free((axutil_env_t*) env);

我在代码中没有任何"野生"的新或 malloc。

但是，瓦尔格林德报告了以下内容：

LEAK SUMMARY:
==2287==    definitely lost: 56 bytes in 3 blocks
==2287==    indirectly lost: 156 bytes in 5 blocks
==2287==      possibly lost: 0 bytes in 0 blocks
==2287==    still reachable: 20 bytes in 1 blocks
==2287==         suppressed: 0 bytes in 0 blocks

我用 --leak-check=full 重新运行 Valgind，但据我了解，内存问题位于 axis2c *.so 文件中。

HEAP SUMMARY:
==2292==     in use at exit: 232 bytes in 9 blocks
==2292==   total heap usage: 13,180 allocs, 13,171 frees, 760,422 bytes allocated
==2292== 
==2292== 68 (16 direct, 52 indirect) bytes in 1 blocks are definitely lost in loss record 7 of 9
==2292==    at 0x400677E: malloc (vg_replace_malloc.c:195)
==2292==    by 0x40C2032: axutil_allocator_malloc_impl (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x40C5C07: axutil_string_create (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x804E024: axis2_stub_start_op_PoCPCIServiceService_GetEncryptedData (axis2_stub_PoCPCIServiceService.c:493)
==2292==    by 0x804E759: main (main.c:59)
==2292== 
==2292== 72 (20 direct, 52 indirect) bytes in 1 blocks are definitely lost in loss record 8 of 9
==2292==    at 0x400677E: malloc (vg_replace_malloc.c:195)
==2292==    by 0x40C2032: axutil_allocator_malloc_impl (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x40C74F5: axutil_qname_create (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x804D515: axis2_stub_populate_services_for_PoCPCIServiceService (axis2_stub_PoCPCIServiceService.c:91)
==2292==    by 0x804D395: axis2_stub_create_PoCPCIServiceService (axis2_stub_PoCPCIServiceService.c:48)
==2292==    by 0x804E6ED: main (main.c:46)
==2292== 
==2292== 72 (20 direct, 52 indirect) bytes in 1 blocks are definitely lost in loss record 9 of 9
==2292==    at 0x400677E: malloc (vg_replace_malloc.c:195)
==2292==    by 0x40C2032: axutil_allocator_malloc_impl (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x40C74F5: axutil_qname_create (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x804D64F: axis2_stub_populate_services_for_PoCPCIServiceService (axis2_stub_PoCPCIServiceService.c:111)
==2292==    by 0x804D395: axis2_stub_create_PoCPCIServiceService (axis2_stub_PoCPCIServiceService.c:48)
==2292==    by 0x804E6ED: main (main.c:46)

如果我是对的，有没有办法解决它？

感谢您的帮助。

问候。

Answer 1

没有代码，它只是猜测。我使用了axis2c（来自svn的1.7.x），没有注意到任何泄漏（使用vc中的视觉检漏器检查）。

我只释放了服务客户端和环境。

 axis2_svc_client_free(svc, env);
 axutil_env_free(env);

根据标头注释，您与"axis2_svc_client_send_receive"（在生成代码中使用）绑定的数据由服务客户端释放。

Answer 2

不幸的是，

Axis2/C 有很多内存泄漏。

我们启动了 axis2c-非官方项目，以提供比原始版本更稳定的 Axis2/C 版本。

该项目中有一个已修复的问题列表。