public virtual bool continueWaitState(SceKernelThreadInfo thread, ThreadWaitInfo wait)
{
// Check if the thread has to continue its wait state or if the mbx
// has received a new message during the callback execution.
SceKernelMbxInfo info = outerInstance.mbxMap[wait.Mbx_id];
if (info == null)
{
thread.cpuContext._v0 = ERROR_KERNEL_NOT_FOUND_MESSAGE_BOX;
return(false);
}
// Check the mbx for a new message.
if (info.hasMessage())
{
Memory mem = Memory.Instance;
int msgAddr = info.removeMsg(mem);
wait.Mbx_resultAddr.setValue(msgAddr);
info.threadWaitingList.removeWaitingThread(thread);
thread.cpuContext._v0 = 0;
return(false);
}
return(true);
}
public virtual int sceKernelSendMbx(int uid, TPointer msgAddr)
{
SceKernelMbxInfo info = mbxMap[uid];
bool msgConsumed = false;
// If the Mbx is empty, check if some thread is already waiting.
// If a thread is already waiting, do not update the msg "nextMsgPacketAddr" FieldInfo.
if (!info.hasMessage())
{
SceKernelThreadInfo thread = info.threadWaitingList.FirstWaitingThread;
if (thread != null)
{
//if (log.DebugEnabled)
{
Console.WriteLine(string.Format("sceKernelSendMbx waking thread {0}", thread));
}
thread.wait.Mbx_resultAddr.setValue(msgAddr.Address);
info.threadWaitingList.removeWaitingThread(thread);
thread.cpuContext._v0 = 0;
ThreadManForUser threadMan = Modules.ThreadManForUserModule;
threadMan.hleChangeThreadState(thread, PSP_THREAD_READY);
threadMan.hleRescheduleCurrentThread();
msgConsumed = true;
}
}
// Add the message if it has not yet been consumed by a waiting thread
if (!msgConsumed)
{
if ((info.attr & PSP_MBX_ATTR_MSG_PRIORITY) == PSP_MBX_ATTR_MSG_FIFO)
{
info.addMsg(msgAddr.Memory, msgAddr.Address);
}
else if ((info.attr & PSP_MBX_ATTR_MSG_PRIORITY) == PSP_MBX_ATTR_MSG_PRIORITY)
{
info.addMsgByPriority(msgAddr.Memory, msgAddr.Address);
}
}
return(0);
}
private int hleKernelReceiveMbx(int uid, TPointer32 addrMsgAddr, TPointer32 timeoutAddr, bool doCallbacks, bool poll)
{
SceKernelMbxInfo info = mbxMap[uid];
ThreadManForUser threadMan = Modules.ThreadManForUserModule;
if (!info.hasMessage())
{
if (!poll)
{
//if (log.DebugEnabled)
{
Console.WriteLine(string.Format("hleKernelReceiveMbx - {0} (waiting)", info));
}
SceKernelThreadInfo currentThread = threadMan.CurrentThread;
info.threadWaitingList.addWaitingThread(currentThread);
currentThread.wait.Mbx_id = uid;
currentThread.wait.Mbx_resultAddr = addrMsgAddr;
threadMan.hleKernelThreadEnterWaitState(PSP_WAIT_MBX, uid, mbxWaitStateChecker, timeoutAddr.Address, doCallbacks);
}
else
{
//if (log.DebugEnabled)
{
Console.WriteLine("hleKernelReceiveMbx has no messages.");
}
return(ERROR_KERNEL_MESSAGEBOX_NO_MESSAGE);
}
}
else
{
// Success, do not reschedule the current thread.
//if (log.DebugEnabled)
{
Console.WriteLine(string.Format("hleKernelReceiveMbx - {0} fast check succeeded", info));
}
int msgAddr = info.removeMsg(Memory.Instance);
addrMsgAddr.setValue(msgAddr);
}
return(0);
}