Tools/nativelib/include/threads_int.h

   1 /*
   2  * Acess2 libnative (Kernel Simulation Library)
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * threads_int.h
   6  * - Threads handling definitions
   7  */
   8 #ifndef _THREADS_INT_H_
   9 #define _THREADS_INT_H_
  10
  11 #include <shortlock.h>
  12
  13 #ifndef _THREADS_H_
  14 typedef struct sThread  tThread;
  15 #endif
  16
  17 #define THREAD_EVENT_RWLOCK     (1 << 8)
  18
  19 typedef struct sThreadIntMutex  tThreadIntMutex;        // actually pthreads
  20 typedef struct sThreadIntSem    tThreadIntSem;
  21
  22 struct sProcess
  23 {
  24         struct sProcess *Next;
  25         struct sThread  *Threads;
  26
  27          int    PID;
  28          int    UID, GID;
  29
  30         char    *CWD;
  31         char    *Chroot;
  32
  33          int    MaxFDs;
  34         void    *Handles;
  35 };
  36
  37 struct sThread
  38 {
  39         struct sThread  *Next;
  40         struct sThread  *ListNext;
  41
  42         struct sProcess *Process;
  43         struct sThread  *ProcNext;
  44
  45         void    *ThreadHandle;
  46          int    TID;
  47
  48          int    Status;
  49
  50         tShortSpinlock  IsLocked;
  51
  52         uint32_t        EventState;
  53         uint32_t        WaitingEvents;
  54         tThreadIntSem   *WaitSemaphore; // pthreads
  55
  56         char    *ThreadName;
  57
  58          int    bInstrTrace;    // Used for semaphore tracing
  59
  60          int    RetStatus;
  61         void    *WaitPointer;
  62
  63         // Init Only
  64         void    (*SpawnFcn)(void*);
  65         void    *SpawnData;
  66 };
  67
  68 enum eThreadStatus {
  69         THREAD_STAT_NULL,       // Invalid process
  70         THREAD_STAT_ACTIVE,     // Running and schedulable process
  71         THREAD_STAT_SLEEPING,   // Message Sleep
  72         THREAD_STAT_MUTEXSLEEP, // Mutex Sleep
  73         THREAD_STAT_RWLOCKSLEEP,        // Read-Writer lock Sleep
  74         THREAD_STAT_SEMAPHORESLEEP,     // Semaphore Sleep
  75         THREAD_STAT_QUEUESLEEP, // Queue
  76         THREAD_STAT_EVENTSLEEP, // Event sleep
  77         THREAD_STAT_WAITING,    // ??? (Waiting for a thread)
  78         THREAD_STAT_PREINIT,    // Being created
  79         THREAD_STAT_ZOMBIE,     // Died/Killed, but parent not informed
  80         THREAD_STAT_DEAD,       // Awaiting burial (free)
  81         THREAD_STAT_BURIED      // If it's still on the list here, something's wrong
  82 };
  83 static const char * const casTHREAD_STAT[] = {
  84         "THREAD_STAT_NULL",
  85         "THREAD_STAT_ACTIVE",
  86         "THREAD_STAT_SLEEPING",
  87         "THREAD_STAT_MUTEXSLEEP",
  88         "THREAD_STAT_RWLOCKSLEEP",
  89         "THREAD_STAT_SEMAPHORESLEEP",
  90         "THREAD_STAT_QUEUESLEEP",
  91         "THREAD_STAT_EVENTSLEEP",
  92         "THREAD_STAT_WAITING",
  93         "THREAD_STAT_PREINIT",
  94         "THREAD_STAT_ZOMBIE",
  95         "THREAD_STAT_DEAD",
  96         "THREAD_STAT_BURIED"
  97 };
  98
  99 extern struct sThread __thread  *lpThreads_This;
 100 extern tShortSpinlock   glThreadListLock;
 101
 102 extern int      Threads_int_CreateThread(struct sThread *Thread);
 103 extern int      Threads_int_ThreadingEnabled(void);
 104
 105
 106 extern struct sThread   *Proc_GetCurThread(void);
 107 extern struct sThread   *Threads_RemActive(void);
 108 extern void     Threads_AddActive(struct sThread *Thread);
 109 extern void     Threads_int_WaitForStatusEnd(enum eThreadStatus Status);
 110 extern int      Threads_int_Sleep(enum eThreadStatus Status, void *Ptr, int Num, struct sThread **ListHead, struct sThread **ListTail, tShortSpinlock *Lock);
 111 extern void     Semaphore_ForceWake(struct sThread *Thread);
 112
 113 extern tThreadIntMutex  *Threads_int_MutexCreate(void);
 114 extern void     Threads_int_MutexDestroy(tThreadIntMutex *Mutex);
 115 extern void     Threads_int_MutexLock(tThreadIntMutex *Mutex);
 116 extern void     Threads_int_MutexRelease(tThreadIntMutex *Mutex);
 117
 118 extern tThreadIntSem    *Threads_int_SemCreate(void);
 119 extern void     Threads_int_SemDestroy(tThreadIntSem *Sem);
 120 extern void     Threads_int_SemSignal(tThreadIntSem *Sem);
 121 extern void     Threads_int_SemWait(tThreadIntSem *Sem);
 122 extern void     Threads_int_SemWaitAll(tThreadIntSem *Sem);
 123
 124 #endif
 125