Mirrors/bx
1
0
Fork 0
mirror of https://github.com/bkaradzic/bx.git synced 2026-02-17 20:52:37 +01:00
Code Issues Packages Projects Releases Wiki Activity

Added 64-bit atomics.

Browse Source
This commit is contained in:
Branimir Karadžić
2015-09-19 16:58:07 -07:00
parent f800dfbd2d
commit 1f7887bdab
1 changed files with 115 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

124
include/bx/cpu.h
View File

@@ -76,7 +76,11 @@ namespace bx
#endif // BX_COMPILER
}
inline int32_t atomicFetchAndAdd(volatile int32_t* _ptr, int32_t _add)
template<typename Ty>
inline Ty atomicFetchAndAdd(volatile Ty* _ptr, Ty _value);
template<>
inline int32_t atomicFetchAndAdd<int32_t>(volatile int32_t* _ptr, int32_t _add)
{
#if BX_COMPILER_MSVC
return _InterlockedExchangeAdd( (volatile long*)_ptr, _add);
@@ -85,7 +89,33 @@ namespace bx
#endif // BX_COMPILER_
}
inline int32_t atomicAddAndFetch(volatile int32_t* _ptr, int32_t _add)
template<>
inline int64_t atomicFetchAndAdd<int64_t>(volatile int64_t* _ptr, int64_t _add)
{
#if BX_COMPILER_MSVC
return _InterlockedExchangeAdd64( (volatile int64_t*)_ptr, _add);
#else
return __sync_fetch_and_add(_ptr, _add);
#endif // BX_COMPILER_
}
template<>
inline uint32_t atomicFetchAndAdd<uint32_t>(volatile uint32_t* _ptr, uint32_t _add)
{
return uint32_t(atomicFetchAndAdd<int32_t>( (volatile int32_t*)_ptr, int32_t(_add) ) );
}
template<>
inline uint64_t atomicFetchAndAdd<uint64_t>(volatile uint64_t* _ptr, uint64_t _add)
{
return uint64_t(atomicFetchAndAdd<int64_t>( (volatile int64_t*)_ptr, int64_t(_add) ) );
}
template<typename Ty>
inline Ty atomicAddAndFetch(volatile Ty* _ptr, Ty _value);
template<>
inline int32_t atomicAddAndFetch<int32_t>(volatile int32_t* _ptr, int32_t _add)
{
#if BX_COMPILER_MSVC
return atomicFetchAndAdd(_ptr, _add) + _add;
@@ -94,7 +124,33 @@ namespace bx
#endif // BX_COMPILER_
}
inline int32_t atomicFetchAndSub(volatile int32_t* _ptr, int32_t _sub)
template<>
inline int64_t atomicAddAndFetch<int64_t>(volatile int64_t* _ptr, int64_t _add)
{
#if BX_COMPILER_MSVC
return atomicFetchAndAdd(_ptr, _add) + _add;
#else
return __sync_add_and_fetch(_ptr, _add);
#endif // BX_COMPILER_
}
template<>
inline uint32_t atomicAddAndFetch<uint32_t>(volatile uint32_t* _ptr, uint32_t _add)
{
return uint32_t(atomicAddAndFetch<int32_t>( (volatile int32_t*)_ptr, int32_t(_add) ) );
}
template<>
inline uint64_t atomicAddAndFetch<uint64_t>(volatile uint64_t* _ptr, uint64_t _add)
{
return uint64_t(atomicAddAndFetch<int64_t>( (volatile int64_t*)_ptr, int64_t(_add) ) );
}
template<typename Ty>
inline Ty atomicFetchAndSub(volatile Ty* _ptr, Ty _value);
template<>
inline int32_t atomicFetchAndSub<int32_t>(volatile int32_t* _ptr, int32_t _sub)
{
#if BX_COMPILER_MSVC
return atomicFetchAndAdd(_ptr, -_sub);
@@ -103,7 +159,33 @@ namespace bx
#endif // BX_COMPILER_
}
inline int32_t atomicSubAndFetch(volatile int32_t* _ptr, int32_t _sub)
template<>
inline int64_t atomicFetchAndSub<int64_t>(volatile int64_t* _ptr, int64_t _sub)
{
#if BX_COMPILER_MSVC
return atomicFetchAndAdd(_ptr, -_sub);
#else
return __sync_fetch_and_sub(_ptr, _sub);
#endif // BX_COMPILER_
}
template<>
inline uint32_t atomicFetchAndSub<uint32_t>(volatile uint32_t* _ptr, uint32_t _add)
{
return uint32_t(atomicFetchAndSub<int32_t>( (volatile int32_t*)_ptr, int32_t(_add) ) );
}
template<>
inline uint64_t atomicFetchAndSub<uint64_t>(volatile uint64_t* _ptr, uint64_t _add)
{
return uint64_t(atomicFetchAndSub<int64_t>( (volatile int64_t*)_ptr, int64_t(_add) ) );
}
template<typename Ty>
inline Ty atomicSubAndFetch(volatile Ty* _ptr, Ty _value);
template<>
inline int32_t atomicSubAndFetch<int32_t>(volatile int32_t* _ptr, int32_t _sub)
{
#if BX_COMPILER_MSVC
return atomicFetchAndAdd(_ptr, -_sub) - _sub;
@@ -112,16 +194,40 @@ namespace bx
#endif // BX_COMPILER_
}
/// Returns the resulting incremented value.
inline int32_t atomicInc(volatile int32_t* _ptr)
template<>
inline int64_t atomicSubAndFetch<int64_t>(volatile int64_t* _ptr, int64_t _sub)
{
return atomicAddAndFetch(_ptr, 1);
#if BX_COMPILER_MSVC
return atomicFetchAndAdd(_ptr, -_sub) - _sub;
#else
return __sync_sub_and_fetch(_ptr, _sub);
#endif // BX_COMPILER_
}
template<>
inline uint32_t atomicSubAndFetch<uint32_t>(volatile uint32_t* _ptr, uint32_t _add)
{
return uint32_t(atomicSubAndFetch<int32_t>( (volatile int32_t*)_ptr, int32_t(_add) ) );
}
template<>
inline uint64_t atomicSubAndFetch<uint64_t>(volatile uint64_t* _ptr, uint64_t _add)
{
return uint64_t(atomicSubAndFetch<int64_t>( (volatile int64_t*)_ptr, int64_t(_add) ) );
}
/// Returns the resulting incremented value.
template<typename Ty>
inline Ty atomicInc(volatile Ty* _ptr)
{
return atomicAddAndFetch(_ptr, Ty(1) );
}
/// Returns the resulting decremented value.
inline int32_t atomicDec(volatile int32_t* _ptr)
template<typename Ty>
inline Ty atomicDec(volatile Ty* _ptr)
{
return atomicSubAndFetch(_ptr, 1);
return atomicSubAndFetch(_ptr, Ty(1) );
}
///