static void *rpc_func(int fid, void *buf, int bufsize)
{
int *res = &rpc_result;
int thid = -1;
switch (fid) {
case RPCF_GetBufAddr:
*res = (u32)dma_buffer;
break;
case RPCF_DmaRead:
thid = read_thid;
WakeupThread(thid);
break;
case RPCF_DmaWrite:
thid = write_thid;
WakeupThread(thid);
break;
default:
*res = -1;
}
if (thid >= 0) {
cur_thid = thid;
*res = 0;
}
return res;
}
int NetManRpcNetIFSendPacket(const void *packet, unsigned int length){
struct PacketTag *PacketTag;
WaitSema(NetManTxSemaID);
NetmanTxWaitingThread=GetThreadId();
WaitSema(TxBankAccessSema);
//Check is there is space in the current Tx FIFO. If not, wait for the Tx thread to empty out the other FIFO. */
while(CurrentTxFIFOData->PacketReqs.NumPackets>=NETMAN_RPC_BLOCK_SIZE){
SignalSema(TxBankAccessSema);
WakeupThread(TxThreadID);
SleepThread();
WaitSema(TxBankAccessSema);
}
memcpy(&CurrentTxFIFOData->FrameBuffer[CurrentTxFIFOData->PacketReqs.TotalLength], packet, length);
PacketTag=&CurrentTxFIFOData->PacketReqs.tags[CurrentTxFIFOData->PacketReqs.NumPackets];
PacketTag->offset=CurrentTxFIFOData->PacketReqs.TotalLength;
PacketTag->length=length;
CurrentTxFIFOData->PacketReqs.TotalLength+=(length+3)&~3;
CurrentTxFIFOData->PacketReqs.NumPackets++;
WakeupThread(TxThreadID);
SignalSema(TxBankAccessSema);
NetmanTxWaitingThread=-1;
SignalSema(NetManTxSemaID);
return 0;
}
void ioEnd(void) {
// termination requested flag
gIOTerminate = 1;
// wake up and wait for end
WakeupThread(gIOThreadId);
WakeupThread(gDispatcherThreadID);
// Cancel the thread dispatcher alarm (TODO: Is this correct?)
ReleaseAlarm(alarmID);
}
bool Connection::IsActive()
{
// Good opportunity to check g_ServerShutdown
if (g_ServerShutdown) WakeupThread();
return m_ConnectionActive;
}
static void topThread(void *arg)
{
int index;
while(1)
{
WaitSema(topSema);
index = topArg.requestOut & 0x1FF;
topArg.requestOut = index + 1;
switch(topArg.request[index].mode)
{
case TOP_REQ_WAKEUP:
WakeupThread(topArg.request[index].data);
break;
case TOP_REQ_ROTATE:
RotateThreadReadyQueue(topArg.request[index].data);
break;
case TOP_REQ_SUSPEND:
SuspendThread(topArg.request[index].data);
break;
/* default:
Kprintf("## internal error in libkernel!\n"); */
}
}
}
static void TxThread(void *arg)
{
int ThreadToWakeUp;
while(1)
{
SleepThread();
if(PacketReqs.count > 0)
{
while(PacketReqs.count > 0)
{
WaitSema(NetManIOSemaID);
while(SifCallRpc(&NETMAN_rpc_cd, NETMAN_IOP_RPC_FUNC_SEND_PACKETS, 0, &PacketReqs, sizeof(PacketReqs), &ReceiveBuffer, sizeof(ReceiveBuffer.result), &TxEndCallback, NULL) < 0){};
SignalSema(NetManIOSemaID);
}
}
else
{
if(NetmanTxWaitingThread >= 0)
{
DI();
ThreadToWakeUp=NetmanTxWaitingThread;
NetmanTxWaitingThread=-1;
EI();
WakeupThread(ThreadToWakeUp);
}
}
}
}
void ioEnd(void) {
// termination requested flag
gIOTerminate = 1;
// wake up and wait for end
WakeupThread(gIOThreadId);
}
int ioPutRequest(int type, void* data) {
if (isIOBlocked)
return IO_ERR_IO_BLOCKED;
// check the type before queueing
if (!ioGetHandler(type))
return IO_ERR_INVALID_HANDLER;
WaitSema(gEndSemaId);
// We don't have to lock the tip of the queue...
// If it exists, it won't be touched, if it does not exist, it is not being processed
struct io_request_t* req = gReqEnd;
if (!req) {
gReqList = (struct io_request_t*)malloc(sizeof(struct io_request_t));
req = gReqList;
gReqEnd = gReqList;
} else {
req->next = (struct io_request_t*)malloc(sizeof(struct io_request_t));
req = req->next;
gReqEnd = req;
}
req->next = NULL;
req->type = type;
req->data = data;
SignalSema(gEndSemaId);
WakeupThread(gIOThreadId);
return IO_OK;
}
//Only one thread can enter this critical section!
static void EnQFrame(const void *frame, unsigned int length)
{
SifDmaTransfer_t dmat;
int dmat_id;
//Write back D-cache, before performing a DMA transfer.
SifWriteBackDCache((void*)frame, length);
//Wait for a spot to be freed up.
while(PacketReqs.count + 1 >= NETMAN_RPC_BLOCK_SIZE)
{
NetmanTxWaitingThread = GetThreadId();
WakeupThread(TxThreadID);
SleepThread();
}
//Transfer to IOP RAM
dmat.src = (void*)frame;
dmat.dest = &IOPFrameBuffer[IOPFrameBufferWrPtr * NETMAN_MAX_FRAME_SIZE];
dmat.size = length;
dmat.attr = 0;
while((dmat_id = SifSetDma(&dmat, 1))==0){};
//Record the frame length.
PacketReqs.length[IOPFrameBufferWrPtr] = length;
DI();
//Update the frame count.
PacketReqs.count++;
EI();
//Increase write pointer by one position.
IOPFrameBufferWrPtr = (IOPFrameBufferWrPtr + 1) % NETMAN_RPC_BLOCK_SIZE;
//Signal the transmission thread that there are more frames to transmit.
WakeupThread(TxThreadID);
//Ensure that the frame is copied over before returning (so that the buffer can be freed).
while(SifDmaStat(dmat_id) >= 0){};
}
static void TxThread(void *arg){
struct TxFIFOData *TxFIFODataToTransmit;
SifDmaTransfer_t dmat;
int dmat_id, ThreadToWakeUp;
while(1){
SleepThread();
WaitSema(TxBankAccessSema);
if(CurrentTxFIFOData->PacketReqs.NumPackets>0){
// Switch banks
TxFIFODataToTransmit=CurrentTxFIFOData;
if(TxActiveBankID==0){
CurrentTxFIFOData=&TxFIFOData2;
TxActiveBankID=1;
}
else{
CurrentTxFIFOData=&TxFIFOData1;
TxActiveBankID=0;
}
SignalSema(TxBankAccessSema);
SifWriteBackDCache(&TxFIFODataToTransmit->PacketReqs, sizeof(TxFIFODataToTransmit->PacketReqs));
dmat.src=&TxFIFODataToTransmit->PacketReqs;
dmat.dest=TxFrameTagBuffer;
dmat.size=8+sizeof(struct PacketTag)*TxFIFODataToTransmit->PacketReqs.NumPackets;
dmat.attr=0;
while((dmat_id=SifSetDma(&dmat, 1))==0){};
WaitSema(NetManIOSemaID);
SifCallRpc(&NETMAN_rpc_cd, NETMAN_IOP_RPC_FUNC_SEND_PACKETS, 0, TxFIFODataToTransmit->FrameBuffer, TxFIFODataToTransmit->PacketReqs.TotalLength, NULL, 0, NULL, NULL);
SignalSema(NetManIOSemaID);
TxFIFODataToTransmit->PacketReqs.NumPackets=0;
TxFIFODataToTransmit->PacketReqs.TotalLength=0;
}
else SignalSema(TxBankAccessSema);
if(NetmanTxWaitingThread>=0){
ThreadToWakeUp=NetmanTxWaitingThread;
NetmanTxWaitingThread=-1; //To prevent a race condition from occurring, invalidate NetmanTxWaitingThread before invoking WakeupThread.
WakeupThread(ThreadToWakeUp);
}
}
}
Connection::~Connection()
{
LogMessage("[%d] Connection Destroyed\n", m_RecvThreadHandle);
KillConnection();
// Let thread know it is terminated.
if (!m_TcpThreadTerminated)
{
m_TcpThreadTerminated = true;
WakeupThread();
m_Mutex.Lock();
Sleep(1);
m_Mutex.Unlock();
}
delete m_SendQueue;
}
Connection * Connection::ReSetConnection(SOCKET s, ServerManager &server_mgr, short port, int server_type, unsigned long* ip_addr)
{
if (!m_RecvThreadHandle) // This should never be needed, but it's in here just in case.
{
LogMessage("!Restarting TCP Connection receive thread\n");
#ifdef WIN32
UINT uiThreadId = 0;
m_RecvThreadHandle = (HANDLE)_beginthreadex(NULL, 1024, SocketRecvThread, this, 0, &uiThreadId);
#else
pthread_mutex_init(&m_RecvThreadMtx, NULL);
pthread_cond_init(&m_RecvThreadCond, NULL);
pthread_create(&m_RecvThreadHandle, NULL, SocketRecvThread, this);
#endif
}
m_Mutex.Lock();
m_ConnectionActive = true; // Mark this as an active connection
m_PacketLoggingEnabled = false; // Disable packet logging
m_KeysExchanged = false;
m_LoginHandoff = false;
m_InactivityTimer = 0;
// Temporarily set the AvatarID to 1, otherwise it might get killed off
// too soon with a heavy load (lots of connections)
m_AvatarID = 1;
m_Socket = s;
m_TcpPort = port;
m_ServerType = server_type;
if (ip_addr) m_IPaddr = *ip_addr;
m_Mutex.Unlock();
m_SendQueue->ResetQueue();
LogMessage("[%d] Reanimating TCP Connection receive thread\n", m_RecvThreadHandle);
WakeupThread();
return this;
}
