typedef struct sThread
{
// --- threads.c's
- // 0
- struct sThread *Next; //!< Next thread in list
- tSpinlock IsLocked; //!< Thread's spinlock
+ /**
+ * \brief Next thread in current list
+ * \note Required to be first for linked list hacks to work
+ */
+ struct sThread *Next;
+ struct sThread *GlobalNext; //!< Next thread in global list
+ struct sThread *GlobalPrev; //!< Previous thread in global list
+ tShortSpinlock IsLocked; //!< Thread's spinlock
volatile int Status; //!< Thread Status
int RetStatus; //!< Return Status
- // 16
Uint TID; //!< Thread ID
Uint TGID; //!< Thread Group (Process)
- Uint PTID; //!< Parent Thread ID
+ struct sThread *Parent; //!< Parent Thread
Uint UID, GID; //!< User and Group
char *ThreadName; //!< Name of thread
// --- arch/proc.c's responsibility
- // 40
//! Kernel Stack Base
tVAddr KernelStack;
- // 44 (x86)
//! Memory Manager State
tMemoryState MemState;
- // 48 (x86)
//! State on task switch
tTaskState SavedState;
// --- threads.c's
- // 60
int CurFaultNum; //!< Current fault number, 0: none
tVAddr FaultHandler; //!< Fault Handler
int NumTickets; //!< Priority - Chance of gaining CPU
Uint Config[NUM_CFG_ENTRIES]; //!< Per-process configuration
+
+ volatile int CurCPU;
} tThread;
enum {
- THREAD_STAT_NULL,
- THREAD_STAT_ACTIVE,
- THREAD_STAT_SLEEPING,
- THREAD_STAT_WAITING,
- THREAD_STAT_ZOMBIE,
- THREAD_STAT_DEAD
+ THREAD_STAT_NULL, // Invalid process
+ THREAD_STAT_ACTIVE, // Running and schedulable process
+ THREAD_STAT_SLEEPING, // Message Sleep
+ THREAD_STAT_OFFSLEEP, // Mutex Sleep (or waiting on a thread)
+ THREAD_STAT_WAITING, // ???
+ THREAD_STAT_ZOMBIE, // Died, just not removed
+ THREAD_STAT_DEAD // Why do we care about these???
};
enum eFaultNumbers
// === FUNCTIONS ===
extern tThread *Proc_GetCurThread(void);
extern tThread *Threads_GetThread(Uint TID);
-extern void Threads_Wake(tThread *Thread);
+extern void Threads_SetTickets(tThread *Thread, int Num);
+extern int Threads_Wake(tThread *Thread);
extern void Threads_AddActive(tThread *Thread);
+extern tThread *Threads_GetNextToRun(int CPU, tThread *Last);
#endif