GType register problem of soup type in shared object

[전태수 <steve jun samsung com>]

I came across the GType registration problem.

My program shows the below error message, resulting in crash.

 

(process:3911): GLib-GObject-WARNING **: cannot register existing type `SoupSession'

(process:3911): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed

(process:3911): GLib-GObject-CRITICAL **: g_type_register_static: assertion `parent_type > 0' failed

(process:3911): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed

 

My program consists of main process with several shared objects which will be dynamically loaded in runtime.

Any recommendation to avoid the crash ?

 

I attached a simple example which makes the crash.

 

// @main.c

static int dlopen_hello()

{

    void* handle = dlopen("./hello.so", RTLD_LAZY);

    typedef void (*hello_t)();

    hello_t hello = (hello_t) dlsym(handle, "hello");

    hello();

    dlclose(handle);

             return 0;

}

 

int main() {

             g_type_init(); // can't move; must be here !!! if this will have moved to hello() in so.c, no crash is observable.

             dlopen_hello();

             dlopen_hello();

             dlopen_hello();

}

------------------------------------------------------------------------

// so.c

void hello() {

             SoupSession* session = soup_session_async_new();

             soup_session_abort (session);

             g_object_unref (session);

             return;

}