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