[Kernel & APT] Mutexes v0.1

include/kernel/kernel.hpp

@@ -46,6 +46,10 @@ class Kernel {
 	Handle makeSession(Handle port);
 	Handle makeThread(u32 entrypoint, u32 initialSP, u32 priority, s32 id, u32 arg,ThreadStatus status = ThreadStatus::Dormant);
 
+public:
+	Handle makeMutex(bool locked = false); // Needs to be public to be accessible to the APT/DSP services
+
+private:
 	void signalArbiter(u32 waitingAddress, s32 threadCount);
 	void sleepThread(s64 ns);
 	void sleepThreadOnArbiter(u32 waitingAddress);

include/kernel/kernel_types.hpp

@@ -150,6 +150,13 @@ static const char* kernelObjectTypeToString(KernelObjectType t) {
     }
 }
 
+struct Mutex {
+    Handle ownerThread = 0; // Index of the thread that holds the mutex if it's locked
+    bool locked;
+
+    Mutex(bool lock = false) : locked(lock) {}
+};
+
 // Generic kernel object class
 struct KernelObject {
     Handle handle = 0; // A u32 the OS will use to identify objects
@@ -166,4 +173,8 @@ struct KernelObject {
     T* getData() {
         return static_cast<T*>(data);
     }
+
+    const char* getTypeName() {
+        return kernelObjectTypeToString(type);
+    }
 };