45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
-
-
-
+
+
+
+
|
pthread_once(control, function);
#elif defined(OF_HAVE_ATOMIC_OPS)
/* Avoid atomic operations in case it's already done. */
if (*control == 2)
return;
if (OFAtomicIntCompareAndSwap(control, 0, 1)) {
function();
OFMemoryBarrier();
OFAcquireMemoryBarrier();
function();
OFAtomicIntIncrease(control);
OFReleaseMemoryBarrier();
} else
while (*control == 1)
OFYieldThread();
#elif defined(OF_AMIGAOS)
bool run = false;
/* Avoid Forbid() in case it's already done. */
|