Source/Base/Threading/OSGLockPolicies.inl

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  37 \*---------------------------------------------------------------------------*/
  38
  39 OSG_BEGIN_NAMESPACE
  40
  41
  42 /*-------------------------------------------------------------------------*/
  43 /*                             Destructor                                  */
  44
  45 inline
  46 NoLockPolicy::NoLockPolicy(void)
  47 {
  48 }
  49
  50
  51 inline
  52 NoLockPolicy::~NoLockPolicy(void)
  53 {
  54 }
  55
  56 /*-------------------------------------------------------------------------*/
  57 /*                        Reference Counting                               */
  58
  59 inline
  60 void NoLockPolicy::acquire(void)
  61 {
  62 }
  63
  64 inline
  65 void NoLockPolicy::release(void)
  66 {
  67 }
  68
  69 inline
  70 bool NoLockPolicy::request(void)
  71 {
  72     return true;
  73 }
  74
  75
  76
  77 /*-------------------------------------------------------------------------*/
  78 /*                            Constructors                                 */
  79
  80
  81 inline
  82 SingleLockPolicy::SingleLockPolicy(void) :
  83     _pLock(NULL)
  84 {
  85     _pLock = Lock::create();
  86 }
  87
  88
  89 inline
  90 SingleLockPolicy::~SingleLockPolicy(void)
  91 {
  92     _pLock = NULL;
  93 }
  94
  95 inline
  96 void SingleLockPolicy::acquire(void)
  97 {
  98     _pLock->acquire();
  99 }
 100
 101 inline
 102 void SingleLockPolicy::release(void)
 103 {
 104     _pLock->release();
 105 }
 106
 107 inline
 108 bool SingleLockPolicy::request(void)
 109 {
 110     return _pLock->request();
 111 }
 112
 113
 114
 115 /*-------------------------------------------------------------------------*/
 116 /*                            Constructors                                 */
 117
 118
 119 inline
 120 SingleStaticInitLockPolicy::SingleStaticInitLockPolicy(void) :
 121     _pLock(NULL)
 122 {
 123     addPreFactoryInitFunction(
 124         boost::bind(&SingleStaticInitLockPolicy::init, this));
 125
 126     addPreMPExitFunction(
 127         boost::bind(&SingleStaticInitLockPolicy::shutdown, this));
 128 }
 129
 130
 131 inline
 132 SingleStaticInitLockPolicy::~SingleStaticInitLockPolicy(void)
 133 {
 134 }
 135
 136 inline
 137 bool SingleStaticInitLockPolicy::init(void)
 138 {
 139     _pLock = Lock::create();
 140
 141     return true;
 142 }
 143
 144 inline
 145 bool SingleStaticInitLockPolicy::shutdown(void)
 146 {
 147     _pLock = NULL;
 148
 149     return true;
 150 }
 151
 152 inline
 153 void SingleStaticInitLockPolicy::acquire(void)
 154 {
 155     _pLock->acquire();
 156 }
 157
 158 inline
 159 void SingleStaticInitLockPolicy::release(void)
 160 {
 161     _pLock->release();
 162 }
 163
 164 inline
 165 bool SingleStaticInitLockPolicy::request(void)
 166 {
 167     return _pLock->request();
 168 }
 169
 170 OSG_END_NAMESPACE
 171
 172