Changed spinlock mechananisim

[tpg/acess2.git] / Kernel / include / acess.h

diff --git a/Kernel/include/acess.h b/Kernel/include/acess.h
index f6f87f7..b8ba67a 100644 (file)
--- a/Kernel/include/acess.h
+++ b/Kernel/include/acess.h
@@ -21,6 +21,15 @@ typedef  int tTID;
 typedef Uint   tUID;
 typedef Uint   tGID;
 typedef Sint64 tTimestamp;
+typedef struct sShortSpinlock  tShortSpinlock;
+typedef struct sMutex  tMutex;
+
+struct sMutex {
+       tShortSpinlock  Protector;      //!< Protector for the lock strucure
+       struct sThread  *volatile Owner;        //!< Owner of the lock (set upon getting the lock)
+       struct sThread  *Waiting;       //!< Waiting threads
+       struct sThread  *LastWaiting;   //!< Waiting threads
+};
 
 // --- Helper Macros ---
 /**
@@ -403,6 +412,9 @@ extern tGID Threads_GetGID(void);
 extern int     SpawnTask(tThreadFunction Function, void *Arg);
 extern Uint    *Threads_GetCfgPtr(int Id);
 extern int     Threads_SetName(char *NewName);
+extern void    Mutex_Acquire(tMutex *Mutex);
+extern void    Mutex_Release(tMutex *Mutex);
+extern int     Mutex_IsLocked(tMutex *Mutex);
 /**
  * \}
  */