include/xdk/interlocked.h

   1 /******************************************************************************
   2  *                           INTERLOCKED Functions                            *
   3  ******************************************************************************/
   4 //
   5 // Intrinsics (note: taken from our winnt.h)
   6 // FIXME: 64-bit
   7 //
   8 #if defined(__GNUC__)
   9
  10 static __inline__ BOOLEAN
  11 InterlockedBitTestAndSet(
  12   IN LONG volatile *Base,
  13   IN LONG Bit)
  14 {
  15 #if defined(_M_IX86)
  16   LONG OldBit;
  17   __asm__ __volatile__("lock "
  18                        "btsl %2,%1\n\t"
  19                        "sbbl %0,%0\n\t"
  20                        :"=r" (OldBit),"+m" (*Base)
  21                        :"Ir" (Bit)
  22                        : "memory");
  23   return OldBit;
  24 #else
  25   return (_InterlockedOr(Base, 1 << Bit) >> Bit) & 1;
  26 #endif
  27 }
  28
  29 static __inline__ BOOLEAN
  30 InterlockedBitTestAndReset(
  31   IN LONG volatile *Base,
  32   IN LONG Bit)
  33 {
  34 #if defined(_M_IX86)
  35   LONG OldBit;
  36   __asm__ __volatile__("lock "
  37                        "btrl %2,%1\n\t"
  38                        "sbbl %0,%0\n\t"
  39                        :"=r" (OldBit),"+m" (*Base)
  40                        :"Ir" (Bit)
  41                        : "memory");
  42   return OldBit;
  43 #else
  44   return (_InterlockedAnd(Base, ~(1 << Bit)) >> Bit) & 1;
  45 #endif
  46 }
  47
  48 #endif /* defined(__GNUC__) */
  49
  50 #define BitScanForward _BitScanForward
  51 #define BitScanReverse _BitScanReverse
  52 #define BitTest _bittest
  53 #define BitTestAndComplement _bittestandcomplement
  54 #define BitTestAndSet _bittestandset
  55 #define BitTestAndReset _bittestandreset
  56 #define InterlockedBitTestAndSet _interlockedbittestandset
  57 #define InterlockedBitTestAndReset _interlockedbittestandreset
  58
  59 #ifdef _M_AMD64
  60 #define BitTest64 _bittest64
  61 #define BitTestAndComplement64 _bittestandcomplement64
  62 #define BitTestAndSet64 _bittestandset64
  63 #define BitTestAndReset64 _bittestandreset64
  64 #define InterlockedBitTestAndSet64 _interlockedbittestandset64
  65 #define InterlockedBitTestAndReset64 _interlockedbittestandreset64
  66 #endif
  67
  68 #if !defined(__INTERLOCKED_DECLARED)
  69 #define __INTERLOCKED_DECLARED
  70
  71 #if defined (_X86_)
  72 #if defined(NO_INTERLOCKED_INTRINSICS)
  73 NTKERNELAPI
  74 LONG
  75 FASTCALL
  76 InterlockedIncrement(
  77   IN OUT LONG volatile *Addend);
  78
  79 NTKERNELAPI
  80 LONG
  81 FASTCALL
  82 InterlockedDecrement(
  83   IN OUT LONG volatile *Addend);
  84
  85 NTKERNELAPI
  86 LONG
  87 FASTCALL
  88 InterlockedCompareExchange(
  89   IN OUT LONG volatile *Destination,
  90   IN LONG Exchange,
  91   IN LONG Comparand);
  92
  93 NTKERNELAPI
  94 LONG
  95 FASTCALL
  96 InterlockedExchange(
  97   IN OUT LONG volatile *Destination,
  98   IN LONG Value);
  99
 100 NTKERNELAPI
 101 LONG
 102 FASTCALL
 103 InterlockedExchangeAdd(
 104   IN OUT LONG volatile *Addend,
 105   IN LONG  Value);
 106
 107 #else /* !defined(NO_INTERLOCKED_INTRINSICS) */
 108
 109 #define InterlockedExchange _InterlockedExchange
 110 #define InterlockedIncrement _InterlockedIncrement
 111 #define InterlockedDecrement _InterlockedDecrement
 112 #define InterlockedExchangeAdd _InterlockedExchangeAdd
 113 #define InterlockedCompareExchange _InterlockedCompareExchange
 114 #define InterlockedOr _InterlockedOr
 115 #define InterlockedAnd _InterlockedAnd
 116 #define InterlockedXor _InterlockedXor
 117
 118 #endif /* !defined(NO_INTERLOCKED_INTRINSICS) */
 119
 120 #endif /* defined (_X86_) */
 121
 122 #if !defined (_WIN64)
 123 /*
 124  * PVOID
 125  * InterlockedExchangePointer(
 126  *   IN OUT PVOID volatile  *Target,
 127  *   IN PVOID  Value)
 128  */
 129 #define InterlockedExchangePointer(Target, Value) \
 130   ((PVOID) InterlockedExchange((PLONG) Target, (LONG) Value))
 131
 132 /*
 133  * PVOID
 134  * InterlockedCompareExchangePointer(
 135  *   IN OUT PVOID  *Destination,
 136  *   IN PVOID  Exchange,
 137  *   IN PVOID  Comparand)
 138  */
 139 #define InterlockedCompareExchangePointer(Destination, Exchange, Comparand) \
 140   ((PVOID) InterlockedCompareExchange((PLONG) Destination, (LONG) Exchange, (LONG) Comparand))
 141
 142 #define InterlockedExchangeAddSizeT(a, b) InterlockedExchangeAdd((LONG *)a, b)
 143 #define InterlockedIncrementSizeT(a) InterlockedIncrement((LONG *)a)
 144 #define InterlockedDecrementSizeT(a) InterlockedDecrement((LONG *)a)
 145
 146 #endif // !defined (_WIN64)
 147
 148 #if defined (_M_AMD64)
 149
 150 #define InterlockedExchangeAddSizeT(a, b) InterlockedExchangeAdd64((LONGLONG *)a, (LONGLONG)b)
 151 #define InterlockedIncrementSizeT(a) InterlockedIncrement64((LONGLONG *)a)
 152 #define InterlockedDecrementSizeT(a) InterlockedDecrement64((LONGLONG *)a)
 153 #define InterlockedAnd _InterlockedAnd
 154 #define InterlockedOr _InterlockedOr
 155 #define InterlockedXor _InterlockedXor
 156 #define InterlockedIncrement _InterlockedIncrement
 157 #define InterlockedDecrement _InterlockedDecrement
 158 #define InterlockedAdd _InterlockedAdd
 159 #define InterlockedExchange _InterlockedExchange
 160 #define InterlockedExchangeAdd _InterlockedExchangeAdd
 161 #define InterlockedCompareExchange _InterlockedCompareExchange
 162 #define InterlockedAnd64 _InterlockedAnd64
 163 #define InterlockedOr64 _InterlockedOr64
 164 #define InterlockedXor64 _InterlockedXor64
 165 #define InterlockedIncrement64 _InterlockedIncrement64
 166 #define InterlockedDecrement64 _InterlockedDecrement64
 167 #define InterlockedAdd64 _InterlockedAdd64
 168 #define InterlockedExchange64 _InterlockedExchange64
 169 #define InterlockedExchangeAdd64 _InterlockedExchangeAdd64
 170 #define InterlockedCompareExchange64 _InterlockedCompareExchange64
 171 #define InterlockedCompareExchangePointer _InterlockedCompareExchangePointer
 172 #define InterlockedExchangePointer _InterlockedExchangePointer
 173 #define InterlockedBitTestAndSet64 _interlockedbittestandset64
 174 #define InterlockedBitTestAndReset64 _interlockedbittestandreset64
 175
 176 #endif // _M_AMD64
 177
 178 #if defined(_M_AMD64) && !defined(RC_INVOKED) && !defined(MIDL_PASS)
 179 //#if !defined(_X86AMD64_) // FIXME: what's _X86AMD64_ used for?
 180 FORCEINLINE
 181 LONG64
 182 InterlockedAdd64(
 183   IN OUT LONG64 volatile *Addend,
 184   IN LONG64 Value)
 185 {
 186   return InterlockedExchangeAdd64(Addend, Value) + Value;
 187 }
 188 //#endif
 189 #endif
 190
 191 #endif /* !__INTERLOCKED_DECLARED */
 192
 193