HLH_Mutex.h

   1 /*******************************************************************************
   2  *         File : HLH_Mutex.h
   3  *
   4  *       Author : Henry He
   5  *      Created : 2009-10-8 11:08:38
   6  *  Description :
   7  ******************************************************************************/
   8
   9 #ifndef __HLH_MUTEX_INC_20091008_110838_HENRY__
  10 #define __HLH_MUTEX_INC_20091008_110838_HENRY__
  11
  12
  13 /*******************************************************************************
  14  * Desc : Includes Files
  15  ******************************************************************************/
  16 #include        <pthread.h>
  17
  18
  19 /*******************************************************************************
  20  * Desc : Macro Definations
  21  ******************************************************************************/
  22 #define HLH_MUTEX_ERR_FAILED                  (-1)
  23 #define HLH_MUTEX_ERR_ALREADY_INITED          (-2)
  24 #define HLH_MUTEX_ERR_NOT_INIT                (-3)
  25 #define HLH_MUTEX_ERR_CANT_INIT               (-4)
  26
  27
  28
  29 /*******************************************************************************
  30  * Desc : Type Definations
  31  ******************************************************************************/
  32
  33
  34 /*******************************************************************************
  35  * Desc : Global Variables
  36  ******************************************************************************/
  37
  38
  39 /*******************************************************************************
  40  * Desc : Classes
  41  ******************************************************************************/
  42 class HLH_Mutex
  43 {
  44
  45   friend class HLH_Cond;
  46
  47 public:
  48   /******************************************************************************
  49    * Desc : Constructor / Deconstructor of HLH_Mutex
  50    ******************************************************************************/
  51
  52   // Constructor of HLH_Mutex
  53   HLH_Mutex();
  54
  55   // Deconstructor of HLH_Mutex
  56   ~HLH_Mutex();
  57
  58 public:
  59   /******************************************************************************
  60    * Desc : Operations
  61    ******************************************************************************/
  62
  63   // Init this mutex
  64   int Init ();
  65
  66   // Destroy this mutex
  67   void Destroy ();
  68
  69   // Lock this mutex
  70   int Lock ();
  71
  72   // Unlock this mutex
  73   int Unlock ();
  74
  75   // Whether this mutex initialized
  76   bool IsInited () { return m_bInited; }
  77
  78         bool IsLocked () { return m_bLocked; }
  79
  80 private:
  81   /******************************************************************************
  82    * Desc : Private Data
  83    ******************************************************************************/
  84   // Whether this mutex created
  85   bool                m_bInited;
  86
  87         // Whether this mutex locked;
  88         bool                                                            m_bLocked;
  89
  90   // Internal mutex of HLH_Mutex
  91   pthread_mutex_t     m_mMutex;
  92
  93 };
  94
  95
  96
  97 /******************************************************************************
  98  * Desc : Auto initialized HLH_Mutex
  99  ******************************************************************************/
 100 class HLH_AutoMutex : public HLH_Mutex
 101 {
 102   public:
 103     HLH_AutoMutex () { HLH_Mutex::Init (); }
 104
 105 };
 106
 107
 108
 109
 110
 111
 112 #endif /* __HLH_MUTEX_INC_20091008_110838_HENRY__ */