const PolyphaseFilter *MakePolyphaseFilter( int iUpFactor, float fCutoffFrequency )
{
PolyphaseFiltersLock.Lock();
pair<int,float> params( make_pair(iUpFactor, fCutoffFrequency) );
FilterMap::const_iterator it = g_mapPolyphaseFilters.find(params);
if( it != g_mapPolyphaseFilters.end() )
{
/* We already have a filter for this upsampling factor and cutoff; use it. */
PolyphaseFilter *pPolyphase = it->second;
PolyphaseFiltersLock.Unlock();
return pPolyphase;
}
int iWinSize = L*iUpFactor;
float *pFIR = new float[iWinSize];
GenerateSincLowPassFilter( pFIR, iWinSize, fCutoffFrequency );
ApplyKaiserWindow( pFIR, iWinSize, 8 );
NormalizeVector( pFIR, iWinSize );
MultiplyVector( &pFIR[0], &pFIR[iWinSize], (float) iUpFactor );
PolyphaseFilter *pPolyphase = new PolyphaseFilter( iUpFactor );
pPolyphase->Generate( pFIR );
delete [] pFIR;
g_mapPolyphaseFilters[params] = pPolyphase;
PolyphaseFiltersLock.Unlock();
return pPolyphase;
}
static void InitThreads()
{
/* We don't have to worry about two threads calling this at once, since it's
* called when we create a thread. */
static bool bInitialized = false;
if( bInitialized )
return;
g_ThreadSlotsLock.Lock();
/* Libraries might start threads on their own, which might call user callbacks,
* which could come back here. Make sure we don't accidentally initialize twice. */
if( bInitialized )
{
g_ThreadSlotsLock.Unlock();
return;
}
bInitialized = true;
/* Register the "unknown thread" slot. */
int slot = FindEmptyThreadSlot();
strcpy( g_ThreadSlots[slot].name, "Unknown thread" );
g_ThreadSlots[slot].id = GetInvalidThreadId();
sprintf( g_ThreadSlots[slot].ThreadFormattedOutput, "Unknown thread" );
g_pUnknownThreadSlot = &g_ThreadSlots[slot];
g_ThreadSlotsLock.Unlock();
}
/* Wait for the specified network event to occur, or cancellation, whichever
* happens first. On cancellation, return -1; on error, return the error
* code; on success, return 0. */
int NetworkStream_Win32::WaitForCompletionOrCancellation( int iEvent )
{
while(1)
{
int iRet = WaitForSingleObject( m_hCompletionEvent, INFINITE );
if( iRet != WAIT_OBJECT_0 )
continue;
m_Mutex.Lock();
// This will reset the event. Do this while we hold the lock.
WSANETWORKEVENTS events;
WSAEnumNetworkEvents( m_Socket, m_hCompletionEvent, &events );
// Was the event signalled due to cancellation?
if( m_State == STATE_CANCELLED )
{
m_Mutex.Unlock();
return -1;
}
m_Mutex.Unlock();
// If the event didn't actually occur, keep waiting.
if( (events.lNetworkEvents & (1<<iEvent)) )
return events.iErrorCode[iEvent];
/* If the socket was closed while we were waiting, stop. Note that when the
* connection closes immediately after sending data, we'll receive both this
* message and FD_READ at the same time. Only do this if the event we really
* want hasn't happened yet. */
if( (events.lNetworkEvents & (1<<FD_CLOSE_BIT)) )
return WSAECONNRESET;
}
}
bool ThreadedMemoryCardWorker::StorageDevicesChanged( vector<UsbStorageDevice> &aOut )
{
UsbStorageDevicesMutex.Lock();
if( !m_bUsbStorageDevicesChanged )
{
UsbStorageDevicesMutex.Unlock();
return false;
}
aOut = m_aUsbStorageDevices;
m_aUsbStorageDevices.clear();
m_bUsbStorageDevicesChanged = false;
UsbStorageDevicesMutex.Unlock();
return true;
}
void RageSoundManager::Update(float delta)
{
FlushPosMapQueue();
/* Scan the owned_sounds list for sounds that are no longer playing, and delete them. */
g_SoundManMutex.Lock(); /* lock for access to owned_sounds */
set<RageSound *> ToDelete;
for( set<RageSound *>::iterator it = owned_sounds.begin(); it != owned_sounds.end(); ++it )
{
RageSound *pSound = *it;
if( pSound->IsPlaying() )
continue;
LOG->Trace("XXX: deleting '%s'", pSound->GetLoadedFilePath().c_str());
ToDelete.insert( pSound );
}
for( set<RageSound *>::iterator it = ToDelete.begin(); it != ToDelete.end(); ++it )
owned_sounds.erase( *it );
g_SoundManMutex.Unlock(); /* finished with owned_sounds */
/* Be sure to release g_SoundManMutex before deleting sounds. */
for( set<RageSound *>::iterator it = ToDelete.begin(); it != ToDelete.end(); ++it )
delete *it;
if( driver != NULL )
driver->Update(delta);
}
/* Set the timeout length, and reset the timer. */
void RageFileDriverTimeout::SetTimeout( float fSeconds )
{
g_apWorkersMutex.Lock();
for( unsigned i = 0; i < g_apWorkers.size(); ++i )
g_apWorkers[i]->SetTimeout( fSeconds );
g_apWorkersMutex.Unlock();
}
RageSoundManager::~RageSoundManager()
{
g_SoundManMutex.Lock(); /* lock for access to owned_sounds */
set<RageSound *> sounds = owned_sounds;
g_SoundManMutex.Unlock(); /* finished with owned_sounds */
/* Clear any sounds that we own and havn't freed yet. */
set<RageSound *>::iterator j = sounds.begin();
while(j != sounds.end())
delete *(j++);
/* Don't lock while deleting the driver (the decoder thread might deadlock). */
delete driver;
}
const PolyphaseFilter *FindNearestPolyphaseFilter( int iUpFactor, float fCutoffFrequency )
{
/* Find a cached filter with the same iUpFactor and a nearby cutoff frequency.
* Round the cutoff down, if possible; it's better to filter out too much than
* too little. */
PolyphaseFiltersLock.Lock();
pair<int,float> params( make_pair(iUpFactor, fCutoffFrequency + 0.0001f) );
FilterMap::const_iterator it = g_mapPolyphaseFilters.upper_bound( params );
if( it != g_mapPolyphaseFilters.begin() )
--it;
ASSERT( it->first.first == iUpFactor );
PolyphaseFilter *pPolyphase = it->second;
PolyphaseFiltersLock.Unlock();
return pPolyphase;
}
void NetworkStream_Win32::SetError( const RString &sError )
{
m_Mutex.Lock();
if( m_State != STATE_CANCELLED )
{
m_sError = sError;
m_State = STATE_ERROR;
}
if( m_Socket != INVALID_SOCKET )
{
closesocket( m_Socket );
m_Socket = INVALID_SOCKET;
}
m_Mutex.Unlock();
}
void ThreadedMemoryCardWorker::DoHeartbeat()
{
if( m_MountThreadState == paused )
return;
// If true, detect and mount. If false, only detect.
bool bMount = (m_MountThreadState == detect_and_mount);
vector<UsbStorageDevice> aStorageDevices;
//LOG->Trace("update");
if( !m_pDriver->DoOneUpdate( bMount, aStorageDevices ) )
return;
UsbStorageDevicesMutex.Lock();
m_aUsbStorageDevices = aStorageDevices;
m_bUsbStorageDevicesChanged = true;
UsbStorageDevicesMutex.Unlock();
}
ThreadedFileWorker::~ThreadedFileWorker()
{
StopThread();
if( m_pChildDriver != NULL )
FILEMAN->ReleaseFileDriver( m_pChildDriver );
/* Unregister ourself. */
g_apWorkersMutex.Lock();
for( unsigned i = 0; i < g_apWorkers.size(); ++i )
{
if( g_apWorkers[i] == this )
{
g_apWorkers.erase( g_apWorkers.begin()+i );
break;
}
}
g_apWorkersMutex.Unlock();
}
ThreadedFileWorker::ThreadedFileWorker( CString sPath ):
RageWorkerThread( sPath ),
m_DeletedFilesLock( sPath + "DeletedFilesLock" )
{
/* Grab a reference to the child driver. We'll operate on it directly. */
m_pChildDriver = FILEMAN->GetFileDriver( sPath );
if( m_pChildDriver == NULL )
WARN( ssprintf("ThreadedFileWorker: Mountpoint \"%s\" not found", sPath.c_str()) );
m_pResultFile = NULL;
m_pRequestFile = NULL;
m_pResultBuffer = NULL;
m_pRequestBuffer = NULL;
g_apWorkersMutex.Lock();
g_apWorkers.push_back( this );
g_apWorkersMutex.Unlock();
StartThread();
}
void NetworkStream_Win32::Close()
{
if( m_State == STATE_IDLE )
return;
/* If we have an active, stable connection, make sure we flush any data
* completely before closing. If you don't want to do this, call Cancel()
* first. */
Shutdown();
m_Mutex.Lock();
if( m_State == STATE_CANCELLED )
return;
if( m_Socket != INVALID_SOCKET )
closesocket( m_Socket );
m_Socket = INVALID_SOCKET;
m_State = STATE_IDLE;
m_Mutex.Unlock();
}
void RageMutex::Lock()
{
if( m_LockedBy == (uint64_t) GetThisThreadId() )
{
++m_LockCnt;
return;
}
if( !m_pMutex->Lock() )
{
const ThreadSlot *ThisSlot = GetThreadSlotFromID( GetThisThreadId() );
const ThreadSlot *OtherSlot = GetThreadSlotFromID( m_LockedBy );
CString ThisSlotName = "(???" ")"; // stupid trigraph warnings
CString OtherSlotName = "(???" ")"; // stupid trigraph warnings
if( ThisSlot )
ThisSlotName = ssprintf( "%s (%i)", ThisSlot->GetThreadName(), (int) ThisSlot->id );
if( OtherSlot )
OtherSlotName = ssprintf( "%s (%i)", OtherSlot->GetThreadName(), (int) OtherSlot->id );
const CString sReason = ssprintf( "Thread deadlock on mutex %s between %s and %s",
GetName().c_str(), ThisSlotName.c_str(), OtherSlotName.c_str() );
#if defined(CRASH_HANDLER)
/* Don't leave g_ThreadSlotsLock when we call ForceCrashHandlerDeadlock. */
g_ThreadSlotsLock.Lock();
uint64_t CrashHandle = OtherSlot? OtherSlot->id:0;
g_ThreadSlotsLock.Unlock();
/* Pass the crash handle of the other thread, so it can backtrace that thread. */
ForceCrashHandlerDeadlock( sReason, CrashHandle );
#else
FAIL_M( sReason );
#endif
}
m_LockedBy = GetThisThreadId();
/* This has internal thread safety issues itself (eg. one thread may delete
* a mutex while another locks one); disable for now. */
// MarkLockedMutex();
}
void NetworkStream_Win32::Cancel()
{
m_Mutex.Lock();
// Mark cancellation.
m_State = STATE_CANCELLED;
// If resolving, abort the resolve.
if( m_hResolve != NULL )
{
/* When we cancel the request, no message at all will be sent to the window,
* so we need to do it ourself to inform it that it was cancelled. Be sure
* to only do this on successful cancel. */
if( WSACancelAsyncRequest(m_hResolve) == 0 )
PostMessage( m_hResolveHwnd, WM_USER+1, 0, 0 );
}
// Break out if we're waiting in WaitForCompletionOrCancellation().
SetEvent( m_hCompletionEvent );
m_Mutex.Unlock();
}
void ThreadedFileWorker::Close( RageFileBasic *pFile )
{
ASSERT( m_pChildDriver != NULL ); /* how did you get a file to begin with? */
if( pFile == NULL )
return;
if( !IsTimedOut() )
{
/* If we're not in a timed-out state, try to wait for the deletion to complete
* before continuing. */
m_pRequestFile = pFile;
if( !DoRequest(REQ_CLOSE) )
return;
m_pRequestFile = NULL;
}
else
{
/* Delete the file when the timeout completes. */
m_DeletedFilesLock.Lock();
m_apDeletedFiles.push_back( pFile );
m_DeletedFilesLock.Unlock();
}
}
/* Register the given sound, and return a unique ID. */
void RageSoundManager::RegisterSound( RageSound *p )
{
g_SoundManMutex.Lock(); /* lock for access to all_sounds */
all_sounds[p->GetID()] = p;
g_SoundManMutex.Unlock(); /* finished with all_sounds */
}
void ThreadedFileWorker::HandleRequest( int iRequest )
{
{
m_DeletedFilesLock.Lock();
vector<RageFileBasic *> apDeletedFiles = m_apDeletedFiles;
m_apDeletedFiles.clear();
m_DeletedFilesLock.Unlock();
for( unsigned i = 0; i < apDeletedFiles.size(); ++i )
delete apDeletedFiles[i];
}
/* We have a request. */
switch( iRequest )
{
case REQ_OPEN:
ASSERT( m_pResultFile == NULL );
ASSERT( !m_sRequestPath.empty() );
m_iResultRequest = 0;
m_pResultFile = m_pChildDriver->Open( m_sRequestPath, m_iRequestMode, m_iResultRequest );
break;
case REQ_CLOSE:
ASSERT( m_pRequestFile != NULL );
delete m_pRequestFile;
/* Clear m_pRequestFile, so RequestTimedOut doesn't double-delete. */
m_pRequestFile = NULL;
break;
case REQ_GET_FILE_SIZE:
ASSERT( m_pRequestFile != NULL );
m_iResultRequest = m_pRequestFile->GetFileSize();
break;
case REQ_SEEK:
ASSERT( m_pRequestFile != NULL );
m_iResultRequest = m_pRequestFile->Seek( m_iRequestPos );
m_sResultError = m_pRequestFile->GetError();
break;
case REQ_READ:
ASSERT( m_pRequestFile != NULL );
ASSERT( m_pResultBuffer != NULL );
m_iResultRequest = m_pRequestFile->Read( m_pResultBuffer, m_iRequestSize );
m_sResultError = m_pRequestFile->GetError();
break;
case REQ_WRITE:
ASSERT( m_pRequestFile != NULL );
ASSERT( m_pRequestBuffer != NULL );
m_iResultRequest = m_pRequestFile->Write( m_pRequestBuffer, m_iRequestSize );
m_sResultError = m_pRequestFile->GetError();
break;
case REQ_FLUSH:
ASSERT( m_pRequestFile != NULL );
m_iResultRequest = m_pRequestFile->Flush();
m_sResultError = m_pRequestFile->GetError();
break;
case REQ_COPY:
ASSERT( m_pRequestFile != NULL );
m_pResultFile = m_pRequestFile->Copy();
break;
case REQ_POPULATE_FILE_SET:
ASSERT( !m_sRequestPath.empty() );
m_ResultFileSet = FileSet();
m_pChildDriver->FDB->GetFileSetCopy( m_sRequestPath, m_ResultFileSet );
break;
case REQ_FLUSH_DIR_CACHE:
m_pChildDriver->FlushDirCache( m_sRequestPath );
break;
case REQ_REMOVE:
ASSERT( !m_sRequestPath.empty() );
m_iResultRequest = m_pChildDriver->Remove( m_sRequestPath )? 0:-1;
break;
case REQ_MOVE:
ASSERT( !m_sRequestPath.empty() );
ASSERT( !m_sRequestPath2.empty() );
m_iResultRequest = m_pChildDriver->Move( m_sRequestPath, m_sRequestPath2 ) ? 0 : -1;
break;
default:
FAIL_M( ssprintf("%i", iRequest) );
}
}
void RageSoundManager::UnregisterSound( RageSound *p )
{
g_SoundManMutex.Lock(); /* lock for access to all_sounds */
all_sounds.erase( p->GetID() );
g_SoundManMutex.Unlock(); /* finished with all_sounds */
}
void RageSoundManager::DeleteSoundWhenFinished( RageSound *pSound )
{
g_SoundManMutex.Lock(); /* lock for access to owned_sounds */
owned_sounds.insert( pSound );
g_SoundManMutex.Unlock(); /* finished with owned_sounds */
}
void RageSoundManager::SetPrefs(float MixVol)
{
g_SoundManMutex.Lock(); /* lock for access to MixVolume */
MixVolume = MixVol;
g_SoundManMutex.Unlock(); /* finished with MixVolume */
}
void NetworkStream_Win32::Open( const RString &sHost, int iPort, ConnectionType ct )
{
m_Mutex.Lock();
if( m_State == STATE_CANCELLED )
{
m_Mutex.Unlock();
return;
}
// Always shut down a stream completely before reusing it.
ASSERT_M( m_State == STATE_IDLE, ssprintf("%s:%i: %i", sHost.c_str(), iPort, m_State) );
m_sHost = sHost;
m_iPort = iPort;
// Look up the hostname.
hostent *pHost = NULL;
char pBuf[MAXGETHOSTSTRUCT];
{
pHost = (hostent *) pBuf;
ResolveMessageWindow mw;
m_hResolve = WSAAsyncGetHostByName(
mw.GetHwnd(),
WM_USER,
m_sHost,
(char *) pHost,
MAXGETHOSTSTRUCT
);
m_hResolveHwnd = mw.GetHwnd();
m_Mutex.Unlock();
mw.Run();
m_Mutex.Lock();
m_hResolve = NULL;
m_hResolveHwnd = NULL;
if( m_State == STATE_CANCELLED )
{
m_Mutex.Unlock();
return;
}
int iError = mw.GetResult();
if( iError )
{
SetError( ssprintf("DNS error: %s", WinSockErrorToString(iError).c_str() ) );
m_Mutex.Unlock();
return;
}
m_Mutex.Unlock();
}
{
sockaddr_in addr;
addr.sin_addr.s_addr = *(DWORD *)pHost->h_addr_list[0];
addr.sin_family = PF_INET;
addr.sin_port = htons( (uint16_t) iPort );
m_Mutex.Lock();
m_Socket = socket( PF_INET, SOCK_STREAM, IPPROTO_TCP );
if( m_Socket == INVALID_SOCKET )
{
int iError = WSAGetLastError();
SetError( ssprintf("Error creating socket: %s", WinSockErrorToString(iError).c_str() ) );
return;
}
/* Set up the completion event to be signalled when these events occur.
* This also sets the socket to nonblocking. */
WSAEventSelect( m_Socket, m_hCompletionEvent, FD_CONNECT|FD_READ|FD_WRITE|FD_CLOSE );
//fcntl( m_Socket, O_NONBLOCK, 1 );
// Start opening the connection.
int iResult = connect(m_Socket, (SOCKADDR *) &addr, sizeof(addr));
m_Mutex.Unlock();
// We expect EINPROGRESS/WSAEWOULDBLOCK.
if( iResult == SOCKET_ERROR )
{
// Block until the connection attempt completes.
int iError = WSAGetLastError();
if( iError == WSAEWOULDBLOCK )
iError = WaitForCompletionOrCancellation( FD_CONNECT_BIT );
if( iError )
{
SetError( ssprintf("Couldn't connect: %s", WinSockErrorToString(iError).c_str() ) );
return;
}
}
}
m_State = STATE_CONNECTED;
}
void CachedObjectHelpers::Unlock()
{
m_Mutex.Unlock();
}