Sep 21, 2009, 12:14 PM
Post #1 of 2
wierd problems with Win32::Semaphore
$sem = Win32::Semaphore->new(0, 1,"reliance2692") or print "Can't create semaphore\n";
$sem = Win32::Semaphore->open("reliance2692") or print "Can't open semaphore\n";
print "Semaphore:" . $sem . "\n";
By running the above program, I am getting the following output
Can't create semaphore
Can't open semaphore
The output shows that its failed to create a semaphore and even failed to open semaphore.
creating a semaphore might have failed if a semaphore already exists with the given name.
I don't understand why opening a semaphore failed.
Can some clarify the scenario where both creating semaphore & opening semaphore fails.
Are there any permissions with semaphore such that a new semaphore created can be accessed only by certain processes??
Thanks in advance,