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libport: Implemented the interlocked_cmpxchg128 function for ARM64.
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@ -313,6 +313,28 @@ __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare )
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return compare;
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}
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#ifdef __aarch64__
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int interlocked_cmpxchg128( __int64 *dest, __int64 xchg_high, __int64 xchg_low, __int64 *compare )
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{
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int retv;
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pthread_mutex_lock( &interlocked_mutex );
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if (dest[0] == compare[0] && dest[1] == compare[1])
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{
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dest[0] = xchg_low;
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dest[1] = xchg_high;
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retv = 1;
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}
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else
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{
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compare[0] = dest[0];
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compare[1] = dest[1];
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retv = 0;
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}
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pthread_mutex_unlock( &interlocked_mutex );
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return retv;
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}
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#endif
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int interlocked_xchg( int *dest, int val )
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{
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int retv;
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