There seems to be a memory leak in the handle_destroy methods. I wrote this
small test program here to make sure. It reaches ~ 60MB in size ..

#include <globus_gass_copy.h>
#include <globus_io.h>

int
aa() {

 globus_ftp_client_handleattr_t     ftp_handleattr;
 globus_ftp_client_handle_t delete_handle;
 globus_ftp_client_handleattr_init(&ftp_handleattr);
 globus_ftp_client_handle_init(&delete_handle, &ftp_handleattr);
 globus_ftp_client_handle_destroy(&delete_handle);
 globus_ftp_client_handleattr_destroy(&ftp_handleattr);
 return 0;
};


int main() {
 globus_module_activate(GLOBUS_GASS_COPY_MODULE);
 globus_module_activate(GLOBUS_IO_MODULE);
    for (int i = 0; i < 1000000; ++i)
   aa();

 return 0;
}