gsoap 服务器程序内存泄漏问题

[bj-alex]

UINT CTCOServerDlg::GsoapThread(void *param)
{
	CTCOServerDlg *dlg = (CTCOServerDlg*)param;

	soap_init2(&soap, SOAP_IO_KEEPALIVE, SOAP_IO_KEEPALIVE);

	//soap.send_timeout = 30;  //
	//soap.recv_timeout = 30;
	soap.accept_timeout = 300;  //连接超时 300s
	soap.max_keep_alive = 100;
	soap.keep_alive = TRUE;
	soap.tcp_keep_alive = TRUE;


	DWORD tid;	
	HANDLE hThread;

	SOAP_SOCKET m, s;
	m = soap_bind(&soap, NULL, 9999, BACKLOG);
	if (!soap_valid_socket(m)){
		dlg->WriteLog(_T("soap bind error!"));
	}
	else
		dlg->WriteLog(_T("soap bind ok, Listening on port: 9999"));

	for (;;) {
		
		s = soap_accept(&soap);
		if (!soap_valid_socket(s)) {
			if (soap.errnum) {
				soap_print_fault(&soap, stderr);
				exit(1);
			}

			dlg->WriteLog(_T("server timed out"));
			continue;
		}

		dlg->WriteLog(_T(" socket [%d] connect from IP: [%d.%d.%d.%d]"), s, (soap.ip >> 24) & 0xFF, (soap.ip >> 16) & 0xFF, (soap.ip >> 8) & 0xFF, soap.ip & 0xFF);

		tsoap = soap_copy(&soap); // make a safe copy
		if (!tsoap) break;
		
		
		hThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)process_request, tsoap, 0, &tid);
		if (hThread == NULL) {
			dlg->WriteLog(_T("can not create a thread for SOAP request processing.\n"));
			exit(-1);
		}
		

	}

	soap_done(&soap);
	return 0;
}
/*************************************************************************************************************************************************************************/

	DWORD WINAPI process_request(LPVOID* soap) {	
	((struct soap*)soap)->recv_timeout = 30; // Timeout after 30 second stall on recv 
	((struct soap*)soap)->send_timeout = 10; // Timeout after 10 second stall on send 
	soap_serve((struct soap*)soap);
	soap_destroy((struct soap*)soap);
	soap_end((struct soap*)soap);	
	soap_free((struct soap*)soap); 

	return 0;
}

int ns__exec(struct soap *soap, wstring in, wstring* out)
{
	
	if (!soap->userid || !soap->passwd || strcmp(soap->userid, "ats") || strcmp(soap->passwd, "ats123"))
		return 401;// HTTP authentication required
                 //执行函数
                 .......................
}

以上是我的服务器代码。主程序中有个线程调用GsoapThread(void *param)。windows7系统，两个客户端连接服务器。服务器通过XML格式回复客户端请求。
for循环内部建立的线程结束时，会调用 soap_destroy((struct soap*)soap);
soap_end((struct soap*)soap);
soap_free((struct soap*)soap); ，但是内存并没有完全释放。内次线程结束，内存都会增加十几K。不知道是不是我哪里使用不对。