23 #include <drizzled/internal/my_sys.h>
27 #include <plugin/myisam/myisampack.h>
32 static int ptr_compare(
size_t *compare_length,
unsigned char **a,
unsigned char **b);
33 static int ptr_compare_0(
size_t *compare_length,
unsigned char **a,
unsigned char **b);
34 static int ptr_compare_1(
size_t *compare_length,
unsigned char **a,
unsigned char **b);
35 static int ptr_compare_2(
size_t *compare_length,
unsigned char **a,
unsigned char **b);
36 static int ptr_compare_3(
size_t *compare_length,
unsigned char **a,
unsigned char **b);
40 qsort2_cmp get_ptr_compare (
size_t size)
43 return (qsort2_cmp) ptr_compare;
45 case 0:
return (qsort2_cmp) ptr_compare_0;
46 case 1:
return (qsort2_cmp) ptr_compare_1;
47 case 2:
return (qsort2_cmp) ptr_compare_2;
48 case 3:
return (qsort2_cmp) ptr_compare_3;
59 #define cmp(N) if (first[N] != last[N]) return (int) first[N] - (int) last[N]
61 static int ptr_compare(
size_t *compare_length,
unsigned char **a,
unsigned char **b)
63 int length= *compare_length;
64 unsigned char *first,*last;
69 if (*first++ != *last++)
70 return (
int) first[-1] - (int) last[-1];
72 return (
int) first[0] - (int) last[0];
76 static int ptr_compare_0(
size_t *compare_length,
unsigned char **a,
unsigned char **b)
78 int length= *compare_length;
79 unsigned char *first,*last;
97 static int ptr_compare_1(
size_t *compare_length,
unsigned char **a,
unsigned char **b)
99 int length= *compare_length-1;
100 unsigned char *first,*last;
102 first= *a+1; last= *b+1;
118 static int ptr_compare_2(
size_t *compare_length,
unsigned char **a,
unsigned char **b)
120 int length= *compare_length-2;
121 unsigned char *first,*last;
123 first= *a +2 ; last= *b +2;
140 static int ptr_compare_3(
size_t *compare_length,
unsigned char **a,
unsigned char **b)
142 int length= *compare_length-3;
143 unsigned char *first,*last;
145 first= *a +3 ; last= *b +3;
163 void my_store_ptr(
unsigned char *buff,
size_t pack_length, my_off_t pos)
165 switch (pack_length) {
167 case 8: mi_int8store(buff,pos);
break;
168 case 7: mi_int7store(buff,pos);
break;
169 case 6: mi_int6store(buff,pos);
break;
170 case 5: mi_int5store(buff,pos);
break;
172 case 4: mi_int4store(buff,pos);
break;
173 case 3: mi_int3store(buff,pos);
break;
174 case 2: mi_int2store(buff,pos);
break;
175 case 1: buff[0]= (
unsigned char) pos;
break;
181 my_off_t my_get_ptr(
unsigned char *ptr,
size_t pack_length)
184 switch (pack_length) {
186 case 8: pos= (my_off_t) mi_uint8korr(ptr);
break;
187 case 7: pos= (my_off_t) mi_uint7korr(ptr);
break;
188 case 6: pos= (my_off_t) mi_uint6korr(ptr);
break;
189 case 5: pos= (my_off_t) mi_uint5korr(ptr);
break;
191 case 4: pos= (my_off_t) mi_uint4korr(ptr);
break;
192 case 3: pos= (my_off_t) mi_uint3korr(ptr);
break;
193 case 2: pos= (my_off_t) mi_uint2korr(ptr);
break;
194 case 1: pos= (my_off_t) *(
unsigned char*) ptr;
break;
195 default: assert(0);
return 0;
TODO: Rename this file - func.h is stupid.