AcessNative/acesskernel_src/include/threads_int.h

   1 #ifndef _THREADS_INT_H_
   2 #define _THREADS_INT_H_
   3
   4 /**
   5  * \brief IPC Message
   6  */
   7 typedef struct sMessage
   8 {
   9         struct sMessage *Next;  //!< Next message in thread's inbox
  10         tTID    Source; //!< Source thread ID
  11         Uint    Length; //!< Length of message data in bytes
  12         Uint8   Data[]; //!< Message data
  13 } tMsg;
  14
  15 typedef struct sProcess
  16 {
  17          int    nThreads;
  18          int    NativePID;
  19         char    *CWD;
  20         char    *Chroot;
  21          int    MaxFD;
  22 } tProcess;
  23
  24 struct sThread
  25 {
  26         struct sThread  *GlobalNext;
  27         struct sThread  *Next;
  28
  29          int    KernelTID;
  30
  31         tTID    TID, PID;
  32         tUID    UID, GID;
  33
  34         struct sThread  *Parent;
  35
  36         char    *ThreadName;
  37
  38          int    Status; // 0: Dead, 1: Active, 2: Paused, 3: Asleep
  39          int    ExitStatus;
  40          int    _errno;
  41
  42         // Threads waiting for this thread to exit.
  43         // Quit logic:
  44         // - Wait for `WaitingThreads` to be non-null (maybe?)
  45         // - Wake first in the queue, wait for it to be removed
  46         // - Repeat
  47         // - Free thread and quit kernel thread
  48         struct sThread  *WaitingThreads;
  49         struct sThread  *WaitingThreadsEnd;
  50
  51         tProcess        *Process;
  52
  53         Uint32  Events, WaitMask;
  54         void    *EventSem;      // Should be SDL_sem, but I don't want SDL in this header
  55
  56         // Message queue
  57         tMsg * volatile Messages;       //!< Message Queue
  58         tMsg    *LastMessage;   //!< Last Message (speeds up insertion)
  59 };
  60
  61 enum {
  62         THREAD_STAT_NULL,       // Invalid process
  63         THREAD_STAT_ACTIVE,     // Running and schedulable process
  64         THREAD_STAT_SLEEPING,   // Message Sleep
  65         THREAD_STAT_MUTEXSLEEP, // Mutex Sleep
  66         THREAD_STAT_SEMAPHORESLEEP,     // Semaphore Sleep
  67         THREAD_STAT_QUEUESLEEP, // Queue
  68         THREAD_STAT_EVENTSLEEP, // Event sleep
  69         THREAD_STAT_WAITING,    // ??? (Waiting for a thread)
  70         THREAD_STAT_PREINIT,    // Being created
  71         THREAD_STAT_ZOMBIE,     // Died/Killed, but parent not informed
  72         THREAD_STAT_DEAD,       // Awaiting burial (free)
  73         THREAD_STAT_BURIED      // If it's still on the list here, something's wrong
  74 };
  75 extern tThread  *Threads_GetThread(Uint TID);
  76
  77 #endif
  78