u32_t sys_arch_sem_wait(sys_sem_t sem, u32_t timeout)
{
volatile UINT32* semaphore = (volatile UINT32*)sem;
if(timeout != 0)
{
INT64 now = ::HAL_Time_CurrentTime();
INT64 elapsed = now + (timeout * 10000);
while(elapsed > ::HAL_Time_CurrentTime())
{
if(IsSemaphoreGreen(semaphore))
{
AcquireSemaphore(semaphore);
break;
}
if(INTERRUPTS_ENABLED_STATE())
{
if(Events_WaitForEvents(SYSTEM_EVENT_FLAG_NETWORK, timeout))
{
Events_Clear(SYSTEM_EVENT_FLAG_NETWORK);
}
}
else
{
break;
}
}
}
else
{
while(1)
{
// wait and call the continuation for tcpip_thread
if(IsSemaphoreGreen(semaphore))
{
AcquireSemaphore(semaphore);
break;
}
if(INTERRUPTS_ENABLED_STATE())
{
Events_WaitForEvents(SYSTEM_EVENT_FLAG_NETWORK, EVENTS_TIMEOUT_INFINITE);
Events_Clear(SYSTEM_EVENT_FLAG_NETWORK);
}
else
{
break;
}
}
}
return *semaphore;
}
void sys_sem_signal(sys_sem_t sem)
{
volatile UINT32* semaphore = (volatile UINT32*)sem;
ReleaseSemaphore(semaphore);
if(IsSemaphoreGreen(semaphore))
{
Events_Set(SYSTEM_EVENT_FLAG_NETWORK);
}
}