修复digest scan时，hitcnt计数访存bug。

src/inc_internal/alignment_int64.h

@@ -0,0 +1,52 @@
+#ifndef H_ALIGNMENT_INT64_H_INCLUDE
+#define H_ALIGNMENT_INT64_H_INCLUDE
+
+#include <stdlib.h>
+
+#define	CPU_CACHE_ALIGMENT	64
+typedef	long long*	mcore_long_t;
+
+inline mcore_long_t alignment_int64_array_alloc(int size)
+{
+	long long *ret=NULL;
+	ret=(long long*)calloc(CPU_CACHE_ALIGMENT,size);
+	return ret;
+}
+inline long long alignment_int64_array_sum(mcore_long_t array,int size)
+{	
+	long long sum=0;
+	int offset=0,i=0;
+	for(i=0;i<size;i++)
+	{
+		offset=(CPU_CACHE_ALIGMENT/sizeof(long long))*i;
+		sum+=array[offset];
+	}
+	return sum;
+}
+inline long long alignment_int64_array_add(mcore_long_t array,int offset,long long op_val)
+{
+	int idx=(CPU_CACHE_ALIGMENT/sizeof(long long))*offset;
+	array[idx]+=op_val;
+	return array[idx];
+}
+inline long long alignment_int64_array_cnt(mcore_long_t array,int size)
+{
+	int offset=0,i=0;
+	int cnt=0;
+	for(i=0;i<size;i++)
+	{
+		offset=(CPU_CACHE_ALIGMENT/sizeof(long long))*i;
+		if(array[offset]>0)
+		{
+			cnt++;
+		}
+	}
+	return cnt;
+}
+inline void alignment_int64_array_free(mcore_long_t array)
+{
+	free(array);
+}
+
+#endif
+