Hi,
I am working on syscall test: shmat01.c
I have some confusion:
In setup() : it is allocating shared memory by shmget() and then attaching by
shmat() and after that detaching the attached address (i.e. shmdt())
if (shmdt((const void *)base_addr) == -1) {
tst_brkm(TBROK, cleanup, "Couldn't detach shared memory");
}
And again in main function it is using same "base_addr" as attaching address,
addr = shmat(*(TC[i].shmid), base_addr+TC[i].offset,
TC[i].flags);
how can we ensure(100%) that base_addr (virtual) will be free till this point
for attaching?.
there is possibility that this address(base_addr) will be used, so in that case
this shmat() will fail.
Please correct me if I am wrong.
Thanks in advance.
Best Regards,
Om Prakash Pal
------------------------------------------------------------------------------
Everyone hates slow websites. So do we.
Make your web apps faster with AppDynamics
Download AppDynamics Lite for free today:
http://p.sf.net/sfu/appdyn_sfd2d_oct
_______________________________________________
Ltp-list mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/ltp-list
