public virtual int sceKernelCreateLwMutex(TPointer workAreaAddr, string name, int attr, int count, TPointer option)
{
SceKernelLwMutexInfo info = new SceKernelLwMutexInfo(workAreaAddr, name, count, attr);
lwMutexMap[info.uid] = info;
// Return 0 in case of no error, do not return the UID of the created mutex
return(0);
}
private bool removeWaitingThread(SceKernelThreadInfo thread)
{
SceKernelLwMutexInfo info = lwMutexMap[thread.wait.LwMutex_id];
if (info == null)
{
return(false);
}
info.threadWaitingList.removeWaitingThread(thread);
return(true);
}
public virtual int sceKernelReferLwMutexStatusByID(int uid, TPointer addr)
{
SceKernelLwMutexInfo info = lwMutexMap[uid];
if (info == null)
{
Console.WriteLine("sceKernelReferLwMutexStatus unknown UID " + uid.ToString("x"));
return(ERROR_KERNEL_LWMUTEX_NOT_FOUND);
}
info.write(addr);
return(0);
}
public virtual int sceKernelDeleteLwMutex(TPointer workAreaAddr)
{
int uid = workAreaAddr.getValue32();
SceKernelLwMutexInfo info = lwMutexMap.Remove(uid);
if (info == null)
{
Console.WriteLine("sceKernelDeleteLwMutex unknown UID " + uid.ToString("x"));
return(ERROR_KERNEL_LWMUTEX_NOT_FOUND);
}
workAreaAddr.setValue32(0); // Clear uid.
onLwMutexDeleted(uid);
return(0);
}
public virtual int sceKernelUnlockLwMutex(TPointer workAreaAddr, int count)
{
int uid = workAreaAddr.getValue32();
SceKernelLwMutexInfo info = lwMutexMap[uid];
if (info == null)
{
if (uid == 0)
{
// Avoid spamming messages for uid==0
//if (log.DebugEnabled)
{
Console.WriteLine(string.Format("sceKernelUnlockLwMutex unknown uid=0x{0:X}", uid));
}
}
else
{
Console.WriteLine(string.Format("sceKernelUnlockLwMutex unknown uid=0x{0:X}", uid));
}
return(ERROR_KERNEL_LWMUTEX_NOT_FOUND);
}
if (info.lockedCount == 0)
{
Console.WriteLine("sceKernelUnlockLwMutex not locked");
return(ERROR_KERNEL_LWMUTEX_UNLOCKED);
}
if (info.lockedCount < 0)
{
Console.WriteLine("sceKernelUnlockLwMutex underflow");
return(ERROR_KERNEL_LWMUTEX_UNLOCK_UNDERFLOW);
}
info.lockedCount -= count;
if (info.lockedCount == 0)
{
info.threadid = -1;
onLwMutexModified(info);
}
return(0);
}
public virtual bool continueWaitState(SceKernelThreadInfo thread, ThreadWaitInfo wait)
{
// Check if the thread has to continue its wait state or if the lwmutex
// has been unlocked during the callback execution.
SceKernelLwMutexInfo info = outerInstance.lwMutexMap[wait.LwMutex_id];
if (info == null)
{
thread.cpuContext._v0 = ERROR_KERNEL_LWMUTEX_NOT_FOUND;
return(false);
}
// Check the lwmutex.
if (outerInstance.tryLockLwMutex(info, wait.LwMutex_count, thread))
{
info.threadWaitingList.removeWaitingThread(thread);
thread.cpuContext._v0 = 0;
return(false);
}
return(true);
}
private bool tryLockLwMutex(SceKernelLwMutexInfo info, int count, SceKernelThreadInfo thread)
{
if (info.lockedCount == 0)
{
// If the lwmutex is not locked, allow this thread to lock it.
info.threadid = thread.uid;
info.lockedCount += count;
return(true);
}
else if (info.threadid == thread.uid)
{
// If the lwmutex is already locked, but it's trying to be locked by the same thread
// that acquired it initially, check if recursive locking is allowed.
// If not, return an error.
if (((info.attr & PSP_LWMUTEX_ATTR_ALLOW_RECURSIVE) == PSP_LWMUTEX_ATTR_ALLOW_RECURSIVE))
{
info.lockedCount += count;
return(true);
}
}
return(false);
}
private void onLwMutexModified(SceKernelLwMutexInfo info)
{
ThreadManForUser threadMan = Modules.ThreadManForUserModule;
bool reschedule = false;
SceKernelThreadInfo checkedThread = null;
while (true)
{
SceKernelThreadInfo thread = info.threadWaitingList.getNextWaitingThread(checkedThread);
if (thread == null)
{
break;
}
if (tryLockLwMutex(info, thread.wait.LwMutex_count, thread))
{
//if (log.DebugEnabled)
{
Console.WriteLine(string.Format("onLwMutexModified waking thread {0}", thread));
}
// New thread is taking control of LwMutex.
info.threadid = thread.uid;
info.threadWaitingList.removeWaitingThread(thread);
thread.cpuContext._v0 = 0;
threadMan.hleChangeThreadState(thread, PSP_THREAD_READY);
reschedule = true;
}
else
{
checkedThread = thread;
}
}
// Reschedule only if threads waked up.
if (reschedule)
{
Modules.ThreadManForUserModule.hleRescheduleCurrentThread();
}
}
private int hleKernelLockLwMutex(int uid, int count, TPointer32 timeoutAddr, bool wait, bool doCallbacks)
{
SceKernelLwMutexInfo info = lwMutexMap[uid];
if (info == null)
{
if (uid == 0)
{
// Avoid spamming messages for uid==0
//if (log.DebugEnabled)
{
//JAVA TO C# CONVERTER TODO TASK: The following line has a Java format specifier which cannot be directly translated to .NET:
//ORIGINAL LINE: Console.WriteLine(String.format("hleKernelLockLwMutex uid=%d, count=%d, timeout_addr=%s, wait=%b, doCallbacks=%b - - unknown UID", uid, count, timeoutAddr, wait, doCallbacks));
Console.WriteLine(string.Format("hleKernelLockLwMutex uid=%d, count=%d, timeout_addr=%s, wait=%b, doCallbacks=%b - - unknown UID", uid, count, timeoutAddr, wait, doCallbacks));
}
}
else
{
//JAVA TO C# CONVERTER TODO TASK: The following line has a Java format specifier which cannot be directly translated to .NET:
//ORIGINAL LINE: Console.WriteLine(String.format("hleKernelLockLwMutex uid=%d, count=%d, timeout_addr=%s, wait=%b, doCallbacks=%b - - unknown UID", uid, count, timeoutAddr, wait, doCallbacks));
Console.WriteLine(string.Format("hleKernelLockLwMutex uid=%d, count=%d, timeout_addr=%s, wait=%b, doCallbacks=%b - - unknown UID", uid, count, timeoutAddr, wait, doCallbacks));
}
return(ERROR_KERNEL_LWMUTEX_NOT_FOUND);
}
ThreadManForUser threadMan = Modules.ThreadManForUserModule;
SceKernelThreadInfo currentThread = threadMan.CurrentThread;
if (!tryLockLwMutex(info, count, currentThread))
{
//if (log.DebugEnabled)
{
//JAVA TO C# CONVERTER TODO TASK: The following line has a Java format specifier which cannot be directly translated to .NET:
//ORIGINAL LINE: Console.WriteLine(String.format("hleKernelLockLwMutex %s, count=%d, timeout_addr=%s, wait=%b, doCallbacks=%b - fast check failed", info.toString(), count, timeoutAddr, wait, doCallbacks));
Console.WriteLine(string.Format("hleKernelLockLwMutex %s, count=%d, timeout_addr=%s, wait=%b, doCallbacks=%b - fast check failed", info.ToString(), count, timeoutAddr, wait, doCallbacks));
}
if (wait && info.threadid != currentThread.uid)
{
// Failed, but it's ok, just wait a little
info.threadWaitingList.addWaitingThread(currentThread);
// Wait on a specific lwmutex
currentThread.wait.LwMutex_id = uid;
currentThread.wait.LwMutex_count = count;
threadMan.hleKernelThreadEnterWaitState(PSP_WAIT_LWMUTEX, uid, lwMutexWaitStateChecker, timeoutAddr.Address, doCallbacks);
}
else
{
if ((info.attr & PSP_LWMUTEX_ATTR_ALLOW_RECURSIVE) != PSP_LWMUTEX_ATTR_ALLOW_RECURSIVE)
{
return(ERROR_KERNEL_LWMUTEX_RECURSIVE_NOT_ALLOWED);
}
return(ERROR_KERNEL_LWMUTEX_LOCKED);
}
}
else
{
// Success, do not reschedule the current thread.
//if (log.DebugEnabled)
{
//JAVA TO C# CONVERTER TODO TASK: The following line has a Java format specifier which cannot be directly translated to .NET:
//ORIGINAL LINE: Console.WriteLine(String.format("hleKernelLockLwMutex %s, count=%d, timeout_addr=%s, wait=%b, doCallbacks=%b - fast check succeeded", info.toString(), count, timeoutAddr, wait, doCallbacks));
Console.WriteLine(string.Format("hleKernelLockLwMutex %s, count=%d, timeout_addr=%s, wait=%b, doCallbacks=%b - fast check succeeded", info.ToString(), count, timeoutAddr, wait, doCallbacks));
}
}
return(0);
}
