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Backport LAN (#2131)

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backport the old LAN feature to the modern melonDS codebase.
This commit is contained in:
Arisotura
2024-08-10 23:20:50 +02:00
committed by GitHub
parent ec71b15505
commit 8d31875902
34 changed files with 4163 additions and 87 deletions
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19
src/net/LocalMP.h
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@ -21,6 +21,7 @@
#include "types.h"
#include "Platform.h"
#include "MPInterface.h"
namespace melonDS
{
@ -33,20 +34,11 @@ struct MPStatusData
u16 MPReplyBitmask; // bitmask of which clients replied in time
};
struct MPPacketHeader
{
u32 Magic;
u32 SenderID;
u32 Type; // 0=regular 1=CMD 2=reply 3=ack
u32 Length;
u64 Timestamp;
};
constexpr u32 kPacketQueueSize = 0x10000;
constexpr u32 kReplyQueueSize = 0x10000;
constexpr u32 kMaxFrameSize = 0x948;
class LocalMP
class LocalMP : public MPInterface
{
public:
LocalMP() noexcept;
@ -56,8 +48,7 @@ public:
LocalMP& operator=(LocalMP&& other) = delete;
~LocalMP() noexcept;
[[nodiscard]] int GetRecvTimeout() const noexcept { return RecvTimeout; }
void SetRecvTimeout(int timeout) noexcept { RecvTimeout = timeout; }
void Process() {}
void Begin(int inst);
void End(int inst);
@ -69,11 +60,13 @@ public:
int SendAck(int inst, u8* data, int len, u64 timestamp);
int RecvHostPacket(int inst, u8* data, u64* timestamp);
u16 RecvReplies(int inst, u8* data, u64 timestamp, u16 aidmask);
private:
void FIFORead(int inst, int fifo, void* buf, int len) noexcept;
void FIFOWrite(int inst, int fifo, void* buf, int len) noexcept;
int SendPacketGeneric(int inst, u32 type, u8* packet, int len, u64 timestamp) noexcept;
int RecvPacketGeneric(int inst, u8* packet, bool block, u64* timestamp) noexcept;
Platform::Mutex* MPQueueLock;
MPStatusData MPStatus {};
u8 MPPacketQueue[kPacketQueueSize] {};
@ -81,8 +74,6 @@ private:
u32 PacketReadOffset[16] {};
u32 ReplyReadOffset[16] {};
int RecvTimeout = 25;
int LastHostID = -1;
Platform::Semaphore* SemPool[32] {};
};