int
ACE_Token_Collection::tryacquire (const ACE_TCHAR *token_name,
void (*sleep_hook)(void *))
{
ACE_TRACE ("ACE_Token_Collection::tryacquire");
TOKEN_NAME name (token_name);
ACE_Token_Proxy *temp;
// Get the token from the collection.
int result = collection_.find (name, temp);
// did we find it?
if (result == -1)
return result;
// perform the operation
return temp->tryacquire (sleep_hook);
}
int
STDIN_Token::handle_input (ACE_HANDLE fd)
{
ACE_UNUSED_ARG (fd);
char tid[BUFSIZ];
char token[BUFSIZ];
char type[16];
char operation[16];
if (::scanf ("%s %s %s %s", tid, token, type, operation) <= 0)
{
ACE_OS::printf ("Try again.\n");
return 0;
}
ACE_Token_Proxy *proxy =
this->get_proxy (tid, token, type[0]);
if (proxy == 0)
return -1;
switch (operation[0])
{
case 'a':
case 'A':
if (proxy->acquire () == 0)
{
ACE_OS::printf ("Succeeded.\n");
if (ACE_TOKEN_INVARIANTS::instance ()->acquired (proxy) == 0)
ACE_OS::printf ("Violated invariant.\n");
}
else
ACE_ERROR ((LM_ERROR, "%p.\n", "Acquire failed"));
break;
case 'n':
case 'N':
ACE_TOKEN_INVARIANTS::instance ()->releasing (proxy);
if (proxy->renew () == 0)
{
ACE_OS::printf ("Succeeded.\n");
if (ACE_TOKEN_INVARIANTS::instance ()->acquired (proxy) == 0)
ACE_OS::printf ("Violated invariant.\n");
}
else
ACE_ERROR ((LM_ERROR, "%p.\n", "Renew failed"));
break;
case 'r':
case 'R':
ACE_TOKEN_INVARIANTS::instance ()->releasing (proxy);
if (proxy->release () == 0)
ACE_OS::printf ("Succeeded.\n");
else
ACE_ERROR ((LM_ERROR, "%p.\n", "Release failed"));
break;
case 't':
case 'T':
if (proxy->tryacquire () == 0)
{
ACE_OS::printf ("Succeeded.\n");
if (ACE_TOKEN_INVARIANTS::instance ()->acquired (proxy) == 0)
ACE_OS::printf ("Violated invariant.\n");
}
else
ACE_ERROR ((LM_ERROR, "%p.\n", "Tryacquire failed"));
break;
}
this->display_menu ();
return 0;
}
