Thread_Manager.h

Go to the documentation of this file.

//------------------------------------------------------------------------------
// Description : ConOS-Kernel / Thread manager implementation
// Filename    : ThreadManager.h
//------------------------------------------------------------------------------
 
#pragma once
 
//--- Include headers ----------------------------------------------------------
 
#include "Define.h"
#include "Circular_List.h"
#include "Thread.h"
 
//--- Define log capability ----------------------------------------------------
 
#ifdef LOGGER
//#define THREADMANAGER_CPP_LOGGING
#endif
 
//--- Define thread runtime factors --------------------------------------------
 
#define THREADMANAGER_REALTIME_FACTOR         1.00  // 100% of thread time
#define THREADMANAGER_HIGH_PRIORITY_FACTOR    0.80  // 80% of thread time  
#define THREADMANAGER_NORMAL_PRIORITY_FACTOR  0.60  // 60% of thread time
#define THREADMANAGER_LOW_PRIORITY_FACTOR     0.40  // 40% of thread time
#define THREADMANAGER_IDLE_FACTOR             0.20  // 20% of thread time
 
//--- Define interrupt method --------------------------------------------------
 
#pragma inline ( TThreadManager::GetThreadCount )
#pragma inline ( TThreadManager::EnterCriticalSection )
#pragma inline ( TThreadManager::ExitCriticalSection )
 
//--- C++ definition -----------------------------------------------------------
 
#ifdef __cplusplus
extern "C"
{
#endif
 
//--- Class TThreadManager -----------------------------------------------------
 
class TThreadManager
{
  
  public:
    TThreadManager();                          // Constructor
    ~TThreadManager();                         // Destructor
    VOID Initialize( DOUBLE ClockFrequency );  // Initialize
    BOOL SetSwitchTime( DOUBLE ThreadTime );   // Set switch time
    VOID Run();                                // Run thread manager
    VOID Stop();                               // Stop thread manager
    VOID Create( TThread *Thread );            // Create new thread
    VOID Destroy( TThread *Thread );           // Destroy thread
    I32 GetThreadCount();                      // Get thread count
    VOID EnterCriticalSection();               // Enter critical section
    VOID ExitCriticalSection();                // Exit critical section
    TCircularList *Storage;                    // Storage of threads
    TThread *ActiveThread;                     // Active thread
    VOID SwitchImmediate();                    // Switch thread immediate
    
  private:
    DOUBLE Resolution;                         // Timer resolution
    DOUBLE NormalizedResolution;               // Normalized timer resolution
    U32 RealtimeThreadTimerPrescaler;          // Prescaler value for realtime thread
    U32 HighPriorityThreadTimerPrescaler;      // Prescaler value for high priority thread
    U32 NormalPriorityThreadTimerPrescaler;    // Prescaler value for normal priority thread
    U32 LowPriorityThreadTimerPrescaler;       // Prescaler value for low priority thread
    U32 IdleThreadTimerPrescaler;              // Prescaler value for idle thread
    U32 CriticalSectionsCounter;               // Critical sections counter
    
};
 
//--- Define extern object -----------------------------------------------------
 
extern TThreadManager ThreadManager;
 
//--- End Of Class TThreadManager ----------------------------------------------
 
extern VOID *ThreadManagerStack;
extern BOOL ThreadSwitch();
extern VOID ThreadActivate();
extern VOID ThreadManagerInterrupt();
 
#ifdef __cplusplus
}
#endif
 
//--- End of C++ definition ----------------------------------------------------
 
//------------------------------------------------------------------------------
// End Of File 
//------------------------------------------------------------------------------