int os_init(int (*init_once)(void)) {
int err;
#if defined(GENESIS_OS_WINDOWS)
PVOID lpContext;
BOOL pending;
if (!InitOnceBeginInitialize(&win32_init_once, INIT_ONCE_ASYNC, &pending, &lpContext))
return GenesisErrorSystemResources;
if (!pending)
return 0;
if ((err = internal_init(init_once)))
return err;
if (!InitOnceComplete(&win32_init_once, INIT_ONCE_ASYNC, nullptr))
return GenesisErrorSystemResources;
#else
assert_no_err(pthread_mutex_lock(&init_mutex));
if (initialized) {
assert_no_err(pthread_mutex_unlock(&init_mutex));
return 0;
}
initialized = true;
if ((err = internal_init(init_once)))
return err;
assert_no_err(pthread_mutex_unlock(&init_mutex));
#endif
return 0;
}
int soundio_os_init(void) {
int err;
#if defined(SOUNDIO_OS_WINDOWS)
PVOID lpContext;
BOOL pending;
if (!InitOnceBeginInitialize(&win32_init_once, INIT_ONCE_ASYNC, &pending, &lpContext))
return SoundIoErrorSystemResources;
if (!pending)
return 0;
if ((err = internal_init()))
return err;
if (!InitOnceComplete(&win32_init_once, INIT_ONCE_ASYNC, NULL))
return SoundIoErrorSystemResources;
#else
assert_no_err(pthread_mutex_lock(&init_mutex));
if (initialized) {
assert_no_err(pthread_mutex_unlock(&init_mutex));
return 0;
}
initialized = true;
if ((err = internal_init()))
return err;
assert_no_err(pthread_mutex_unlock(&init_mutex));
#endif
return 0;
}
int pthread_once(pthread_once_t *once_control, void (*init_routine)(void))
{
BOOL pending;
if (!InitOnceBeginInitialize(once_control, 0, &pending, NULL))
abort();
if (pending) {
init_routine();
InitOnceComplete(once_control, 0, NULL);
}
return 0;
}
void ExecuteOnce(KDThreadOnce *onceControl, void (*initRoutine)(void))
{
const auto lpInitOnce = reinterpret_cast<PINIT_ONCE>(onceControl);
const auto dwFlags = 0;
const auto lpContext = nullptr;
BOOL pending;
InitOnceBeginInitialize(lpInitOnce, dwFlags, &pending, lpContext);
if (pending)
{
initRoutine();
InitOnceComplete(lpInitOnce, dwFlags, lpContext);
}
}