1 files changed, 56 insertions, 0 deletions
diff --git a/Source/Kernel/TaskManager/Thread.class.h b/Source/Kernel/TaskManager/Thread.class.h
new file mode 100644
index 0000000..62557db
--- /dev/null
+++ b/Source/Kernel/TaskManager/Thread.class.h
@@ -0,0 +1,56 @@
+#ifndef DEF_THREAD_CLASS_H
+#define DEF_THREAD_CLASS_H
+
+#include <TaskManager/Process.class.h>
+
+#define T_ZOMBIE 0
+#define T_RUNNING 1
+#define T_SLEEPING 2
+#define T_IRQWAIT 3		//This can only happen if process->uid == 0 (root)
+
+class Thread {
+	friend class Process;	//This might be useful
+
+	private:
+	Thread();	//Creates a thread without initializing anything. Used by Process::createKernel();
+
+	Process *m_process;	//Associated process
+	u32int m_esp, m_ebp, m_eip;
+	u8int m_state;	//Is one of T_* defined above
+
+	union {		//What the thread might be waiting for
+		u32int m_time;
+		u8int m_irq;		//An IRQ number
+	} waitfor;
+	
+	bool m_isKernel;	//Says if stack is in kernel pagedir, and if thread should run in ring 0
+	u32int m_kernelStackFrame;	//Used for allocating and freeing a frame used as a stack
+
+	void setup(u32int (*entry_point)(), u32int esp);	//Sets up stack, called by both constructors
+
+	public:
+	Thread(u32int (*entry_point)(), bool iskernel = false);	//Assumes process is current process, or is kprocess if isk
+	Thread(Process* process, u32int (*entry_point)());
+	~Thread();
+	void finish(u32int errcode);	//Called by run() when thread returns, and by exception handler. Can also be called by the thread itself
+	void run(u32int (*entry_point)());
+
+	void setState(u32int esp, u32int ebp, u32int eip);
+	u32int getEsp();
+	u32int getEbp();
+	u32int getEip();
+	Process* getProcess();
+
+	void sleep(u32int msecs);
+	void waitIRQ(u8int irq);
+	bool runnable();	//Called by scheduler
+	inline bool irqHappens(u8int irq) {	//Inline for speed
+		if (m_state == T_IRQWAIT and waitfor.m_irq == irq) {
+			m_state = T_RUNNING;
+			return true;
+		}
+		return false;
+	}
+};
+
+#endif