1 #include "lfds611_abstraction_internal_body.h"
7 /****************************************************************************/
8 #if (defined _WIN32 && defined _MSC_VER)
10 /* TRD : 64 bit and 32 bit Windows (user-mode or kernel) on any CPU with the Microsoft C compiler
12 _WIN32 indicates 64-bit or 32-bit Windows
13 _MSC_VER indicates Microsoft C compiler
16 static LFDS611_INLINE lfds611_atom_t lfds611_abstraction_cas( volatile lfds611_atom_t *destination, lfds611_atom_t exchange, lfds611_atom_t compare )
21 assert( destination != NULL );
22 // TRD : exchange can be any value in its range
23 // TRD : compare can be any value in its range
25 LFDS611_BARRIER_COMPILER_FULL;
27 rv = (lfds611_atom_t) _InterlockedCompareExchangePointer( (void * volatile *) destination, (void *) exchange, (void *) compare );
29 LFDS611_BARRIER_COMPILER_FULL;
40 /****************************************************************************/
41 #if (__GNUC__ >= 4 && __GNUC_MINOR__ >= 1 && __GNUC_PATCHLEVEL__ >= 0)
43 /* TRD : any OS on any CPU with GCC 4.1.0 or better
45 GCC 4.1.0 introduced the __sync_*() atomic intrinsics
47 __GNUC__ / __GNUC_MINOR__ / __GNUC_PATCHLEVEL__ indicates GCC and which version
50 static LFDS611_INLINE lfds611_atom_t lfds611_abstraction_cas( volatile lfds611_atom_t *destination, lfds611_atom_t exchange, lfds611_atom_t compare )
55 assert( destination != NULL );
56 // TRD : exchange can be any value in its range
57 // TRD : compare can be any value in its range
59 // TRD : note the different argument order for the GCC instrinsic to the MSVC instrinsic
61 LFDS611_BARRIER_COMPILER_FULL;
63 rv = (lfds611_atom_t) __sync_val_compare_and_swap( destination, compare, exchange );
65 LFDS611_BARRIER_COMPILER_FULL;