Split networking code into its own target (#2091)

src/net/PacketDispatcher.h

@@ -0,0 +1,48 @@
+/*
+    Copyright 2016-2024 melonDS team
+
+    This file is part of melonDS.
+
+    melonDS is free software: you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
+    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+    FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with melonDS. If not, see http://www.gnu.org/licenses/.
+*/
+
+#ifndef PACKETDISPATCHER_H
+#define PACKETDISPATCHER_H
+
+#include "Platform.h"
+#include "types.h"
+#include "FIFO.h"
+
+using PacketQueue = melonDS::RingBuffer<0x8000>;
+
+class PacketDispatcher
+{
+public:
+    PacketDispatcher();
+    ~PacketDispatcher();
+
+    void registerInstance(int inst);
+    void unregisterInstance(int inst);
+
+    void clear();
+
+    void sendPacket(const void* header, int headerlen, const void* data, int datalen, int sender, melonDS::u16 recv_mask);
+    bool recvPacket(void* header, int* headerlen, void* data, int* datalen, int receiver);
+
+private:
+    melonDS::Platform::Mutex* mutex;
+    melonDS::u16 instanceMask;
+    PacketQueue* packetQueues[16];
+};
+
+#endif // PACKETDISPATCHER_H