36 lines
1.6 KiB
C
36 lines
1.6 KiB
C
#ifndef _WDL_ATOMIC_H_
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#define _WDL_ATOMIC_H_
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#include "wdltypes.h"
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#ifdef _WIN32
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static int wdl_atomic_incr(int *v) { return (int) InterlockedIncrement((LONG *)v); }
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static int wdl_atomic_decr(int *v) { return (int) InterlockedDecrement((LONG *)v); }
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static int wdl_atomic_incr(volatile int *v) { return (int) InterlockedIncrement((LONG *)v); }
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static int wdl_atomic_decr(volatile int *v) { return (int) InterlockedDecrement((LONG *)v); }
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#elif (!defined(__APPLE__) || !defined(__ppc__)) && (defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))))
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static WDL_STATICFUNC_UNUSED int wdl_atomic_incr(int *v) { return __sync_add_and_fetch(v,1); }
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static WDL_STATICFUNC_UNUSED int wdl_atomic_decr(int *v) { return __sync_add_and_fetch(v,~0); }
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static WDL_STATICFUNC_UNUSED int wdl_atomic_incr(volatile int *v) { return __sync_add_and_fetch(v,1); }
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static WDL_STATICFUNC_UNUSED int wdl_atomic_decr(volatile int *v) { return __sync_add_and_fetch(v,~0); }
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#elif defined(__APPLE__)
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// used by GCC < 4.2 on OSX
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#include <libkern/OSAtomic.h>
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static WDL_STATICFUNC_UNUSED int wdl_atomic_incr(int *v) { return (int) OSAtomicIncrement32Barrier((int32_t*)v); }
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static WDL_STATICFUNC_UNUSED int wdl_atomic_decr(int *v) { return (int) OSAtomicDecrement32Barrier((int32_t*)v); }
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static WDL_STATICFUNC_UNUSED int wdl_atomic_incr(volatile int *v) { return (int) OSAtomicIncrement32Barrier((int32_t*)v); }
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static WDL_STATICFUNC_UNUSED int wdl_atomic_decr(volatile int *v) { return (int) OSAtomicDecrement32Barrier((int32_t*)v); }
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#else
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// unsupported!
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#pragma message("Need win32 or apple or gcc 4.2+ for wdlatomic.h, doh")
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#endif
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#endif
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