Hi all,
I've faced with problem and spent too much to find a solution, but
without success. So hope, somebody can advise me here, thanks in advance.
1. My demo application:
I wrote simple shared object with one function which prints something to
the screen. I compiled it by: gcc -shared -o libtest.so test.c
In other file I opened this library by 'dlopen(..., RTLD_LAZY)'. Than
found sym by dlsym, executed it and called dlclose.
2. After 'dlclose' I executed dlopen(..., RTLD_LAZY | RTLD_NOLOAD) and
it returned non-zero value. So the library is still in use!
3. If I call dlclose twice, the point 2 returns 0.
What is the proper way to check if some library loaded/unloaded? Why do
I need to call dlclose twice? Why in some applications
'while(dlclose(...) == 0);' loop can be infinite?
--
With best regards,
Alexander Smirnov
