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mariadb
Commit 5985904e authored by unknown's avatar unknown
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Many fixes

parent f8b75e07
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Showing with 940 additions and 334 deletions
include/my_bitmap.h
View file @ 5985904e
......@@ -21,10 +21,13 @@
#define MY_BIT_NONE (~(uint) 0)
typedef struct st_bitmap
{
uchar *bitmap;
uint bitmap_size; /* number of bytes occupied by the above */
uint bitmap_size; /* number of bits occupied by the above */
uint32 last_word_mask;
uint32 *last_word_ptr;
/*
mutex will be acquired for the duration of each bitmap operation if
thread_safe flag in bitmap_init was set. Otherwise, we optimize by not
......@@ -38,30 +41,60 @@ typedef struct st_bitmap
#ifdef __cplusplus
extern "C" {
#endif
extern my_bool bitmap_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2);
extern my_bool bitmap_init(MY_BITMAP *map, uchar *buf, uint bitmap_size, my_bool thread_safe);
extern my_bool bitmap_is_clear_all(const MY_BITMAP *map);
extern my_bool bitmap_is_prefix(const MY_BITMAP *map, uint prefix_size);
extern my_bool bitmap_is_set(const MY_BITMAP *map, uint bitmap_bit);
extern my_bool bitmap_is_set_all(const MY_BITMAP *map);
extern my_bool bitmap_is_subset(const MY_BITMAP *map1, const MY_BITMAP *map2);
extern uint bitmap_set_next(MY_BITMAP *map);
extern uint bitmap_get_first(const MY_BITMAP *map);
extern uint bitmap_get_first_set(const MY_BITMAP *map);
extern uint bitmap_bits_set(const MY_BITMAP *map);
extern void bitmap_clear_all(MY_BITMAP *map);
extern void bitmap_clear_bit(MY_BITMAP *map, uint bitmap_bit);
extern void bitmap_free(MY_BITMAP *map);
extern void bitmap_intersect(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_set_all(MY_BITMAP *map);
extern void bitmap_set_bit(MY_BITMAP *map, uint bitmap_bit);
extern void bitmap_set_prefix(MY_BITMAP *map, uint prefix_size);
extern void bitmap_intersect(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_subtract(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_union(MY_BITMAP *map, const MY_BITMAP *map2);
extern uint bitmap_lock_set_next(MY_BITMAP *map);
extern void bitmap_lock_clear_bit(MY_BITMAP *map, uint bitmap_bit);
#ifdef NOT_USED
extern uint bitmap_lock_bits_set(const MY_BITMAP *map);
extern my_bool bitmap_lock_is_set_all(const MY_BITMAP *map);
extern uint bitmap_lock_get_first(const MY_BITMAP *map);
extern uint bitmap_lock_get_first_set(const MY_BITMAP *map);
extern my_bool bitmap_lock_is_subset(const MY_BITMAP *map1,
const MY_BITMAP *map2);
extern my_bool bitmap_lock_is_prefix(const MY_BITMAP *map, uint prefix_size);
extern my_bool bitmap_lock_is_set(const MY_BITMAP *map, uint bitmap_bit);
extern my_bool bitmap_lock_is_clear_all(const MY_BITMAP *map);
extern my_bool bitmap_lock_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2);
extern void bitmap_lock_set_all(MY_BITMAP *map);
extern void bitmap_lock_clear_all(MY_BITMAP *map);
extern void bitmap_lock_set_bit(MY_BITMAP *map, uint bitmap_bit);
extern void bitmap_lock_flip_bit(MY_BITMAP *map, uint bitmap_bit);
extern void bitmap_lock_set_prefix(MY_BITMAP *map, uint prefix_size);
extern void bitmap_lock_intersect(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_lock_subtract(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_lock_union(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_lock_xor(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_lock_invert(MY_BITMAP *map);
#endif
/* Fast, not thread safe, bitmap functions */
#define bitmap_fast_set_bit(MAP, BIT) (MAP)->bitmap[(BIT) / 8] |= (1 << ((BIT) & 7))
#define bitmap_fast_clear_bit(MAP, BIT) (MAP)->bitmap[(BIT) / 8] &= ~ (1 << ((BIT) & 7))
#define bitmap_fast_is_set(MAP, BIT) (MAP)->bitmap[(BIT) / 8] & (1 << ((BIT) & 7))
#define no_bytes_in_map(map) ((map->bitmap_size + 7)/8)
#define no_words_in_map(map) ((map->bitmap_size + 31)/32)
#define bytes_word_aligned(bytes) (4*((bytes + 3)/4))
#define bitmap_set_bit(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] |= (1 << ((BIT) & 7)))
#define bitmap_flip_bit(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] ^= (1 << ((BIT) & 7)))
#define bitmap_clear_bit(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] &= ~ (1 << ((BIT) & 7)))
#define bitmap_is_set(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] & (1 << ((BIT) & 7)))
#define bitmap_cmp(MAP1, MAP2) \
(memcmp((MAP1)->bitmap, (MAP2)->bitmap, 4*no_words_in_map((MAP1)))==0)
#define bitmap_clear_all(MAP) \
memset((MAP)->bitmap, 0, 4*no_words_in_map((MAP))); \
*(MAP)->last_word_ptr|= (MAP)->last_word_mask
#define bitmap_set_all(MAP) \
(memset((MAP)->bitmap, 0xFF, 4*no_words_in_map((MAP))))
#ifdef __cplusplus
}
......
mysys/my_bitmap.c
View file @ 5985904e
......@@ -40,6 +40,50 @@
#include <my_bitmap.h>
#include <m_string.h>
void create_last_word_mask(MY_BITMAP *map)
{
/* Get the number of used bits (1..8) in the last byte */
unsigned int const used= 1U + ((map->bitmap_size-1U) & 0x7U);
/*
* Create a mask with the upper 'unused' bits set and the lower 'used'
* bits clear. The bits within each byte is stored in big-endian order.
*/
unsigned char const mask= (~((1 << used) - 1)) & 255;
unsigned int byte_no= ((no_bytes_in_map(map)-1)) & ~3U;
map->last_word_ptr= (uint32*)&map->bitmap[byte_no];
/*
The first bytes are to be set to zero since they represent real bits
in the bitvector. The last bytes are set to 0xFF since they represent
bytes not used by the bitvector. Finally the last byte contains bits
as set by the mask above.
*/
unsigned char *ptr= (unsigned char*)&map->last_word_mask;
switch (no_bytes_in_map(map)&3)
{
case 1:
map->last_word_mask= ~0U;
ptr[0]= mask;
return;
case 2:
map->last_word_mask= ~0U;
ptr[0]= 0;
ptr[1]= mask;
return;
case 3:
map->last_word_mask= 0U;
ptr[2]= mask;
ptr[3]= 0xFFU;
return;
case 0:
map->last_word_mask= 0U;
ptr[3]= mask;
return;
}
}
static inline void bitmap_lock(MY_BITMAP *map)
{
#ifdef THREAD
......@@ -61,16 +105,15 @@ my_bool bitmap_init(MY_BITMAP *map, uchar *buf, uint bitmap_size,
my_bool thread_safe)
{
DBUG_ENTER("bitmap_init");
DBUG_ASSERT((bitmap_size & 7) == 0);
bitmap_size/=8;
DBUG_ASSERT(bitmap_size > 0);
if (!(map->bitmap=buf) &&
!(map->bitmap= (uchar*) my_malloc(bitmap_size +
(thread_safe ?
sizeof(pthread_mutex_t) : 0),
MYF(MY_WME | MY_ZEROFILL))))
MYF(MY_WME))))
return 1;
map->bitmap_size=bitmap_size;
create_last_word_mask(map);
#ifdef THREAD
if (thread_safe)
{
......@@ -80,6 +123,7 @@ my_bool bitmap_init(MY_BITMAP *map, uchar *buf, uint bitmap_size,
else
map->mutex=0;
#endif
bitmap_clear_all(map);
DBUG_RETURN(0);
}
......@@ -100,184 +144,113 @@ void bitmap_free(MY_BITMAP *map)
}
void bitmap_set_bit(MY_BITMAP *map, uint bitmap_bit)
{
DBUG_ASSERT(map->bitmap && bitmap_bit < map->bitmap_size*8);
bitmap_lock(map);
bitmap_fast_set_bit(map, bitmap_bit);
bitmap_unlock(map);
}
uint bitmap_set_next(MY_BITMAP *map)
{
uchar *bitmap=map->bitmap;
uint bit_found = MY_BIT_NONE;
uint bitmap_size=map->bitmap_size*8;
uint i;
uint bit_found;
DBUG_ASSERT(map->bitmap);
bitmap_lock(map);
for (i=0; i < bitmap_size ; i++, bitmap++)
{
if (*bitmap != 0xff)
{ /* Found slot with free bit */
uint b;
for (b=0; ; b++)
{
if (!(*bitmap & (1 << b)))
{
*bitmap |= 1<<b;
bit_found = (i*8)+b;
break;
}
}
break; /* Found bit */
}
}
bitmap_unlock(map);
if ((bit_found= bitmap_get_first(map)) != MY_BIT_NONE)
bitmap_set_bit(map, bit_found);
return bit_found;
}
void bitmap_clear_bit(MY_BITMAP *map, uint bitmap_bit)
{
DBUG_ASSERT(map->bitmap && bitmap_bit < map->bitmap_size*8);
bitmap_lock(map);
bitmap_fast_clear_bit(map, bitmap_bit);
bitmap_unlock(map);
}
void bitmap_set_prefix(MY_BITMAP *map, uint prefix_size)
{
uint prefix_bytes, prefix_bits;
DBUG_ASSERT(map->bitmap &&
(prefix_size <= map->bitmap_size*8 || prefix_size == (uint) ~0));
bitmap_lock(map);
set_if_smaller(prefix_size, map->bitmap_size*8);
(prefix_size <= map->bitmap_size || prefix_size == (uint) ~0));
set_if_smaller(prefix_size, map->bitmap_size);
if ((prefix_bytes= prefix_size / 8))
memset(map->bitmap, 0xff, prefix_bytes);
if ((prefix_bits= prefix_size & 7))
map->bitmap[prefix_bytes++]= (1 << prefix_bits)-1;
if (prefix_bytes < map->bitmap_size)
bzero(map->bitmap+prefix_bytes, map->bitmap_size-prefix_bytes);
bitmap_unlock(map);
}
void bitmap_clear_all(MY_BITMAP *map)
{
bitmap_set_prefix(map, 0);
}
void bitmap_set_all(MY_BITMAP *map)
{
bitmap_set_prefix(map, ~0);
if (prefix_bytes < no_bytes_in_map(map))
bzero(map->bitmap+prefix_bytes, no_bytes_in_map(map)-prefix_bytes);
*map->last_word_ptr|= map->last_word_mask; //Set last bits
}
my_bool bitmap_is_prefix(const MY_BITMAP *map, uint prefix_size)
{
uint prefix_bits= prefix_size & 7, res= 0;
uchar *m= map->bitmap, *end_prefix= map->bitmap+prefix_size/8,
*end= map->bitmap+map->bitmap_size;
DBUG_ASSERT(map->bitmap && prefix_size <= map->bitmap_size*8);
uint prefix_bits= prefix_size & 0x7, res;
uchar *m= map->bitmap;
uchar *end_prefix= map->bitmap+prefix_size/8;
uchar *end;
DBUG_ASSERT(map->bitmap && prefix_size <= map->bitmap_size);
end= map->bitmap+no_bytes_in_map(map);
bitmap_lock((MY_BITMAP *)map);
while (m < end_prefix)
if (*m++ != 0xff)
goto ret;
return 0;
*map->last_word_ptr^= map->last_word_mask; //Clear bits
res= 0;
if (prefix_bits && *m++ != (1 << prefix_bits)-1)
goto ret;
while (m < end)
if (*m++ != 0)
goto ret;
res=1;
res= 1;
ret:
bitmap_unlock((MY_BITMAP *)map);
return res;
*map->last_word_ptr|= map->last_word_mask; //Set bits again
return res;
}
my_bool bitmap_is_clear_all(const MY_BITMAP *map)
{
return bitmap_is_prefix(map, 0);
}
my_bool bitmap_is_set_all(const MY_BITMAP *map)
{
return bitmap_is_prefix(map, map->bitmap_size*8);
uint32 *data_ptr= (uint32*)map->bitmap;
uint32 *end= map->last_word_ptr;
for (; data_ptr <= end; data_ptr++)
if (*data_ptr != 0xFFFFFFFF)
return FALSE;
return TRUE;
}
my_bool bitmap_is_set(const MY_BITMAP *map, uint bitmap_bit)
my_bool bitmap_is_clear_all(const MY_BITMAP *map)
{
DBUG_ASSERT(map->bitmap && bitmap_bit < map->bitmap_size*8);
return bitmap_fast_is_set(map, bitmap_bit);
uint32 *data_ptr= (uint32*)map->bitmap;
uint32 *end;
if (*map->last_word_ptr != map->last_word_mask)
return FALSE;
end= map->last_word_ptr;
for (; data_ptr < end; data_ptr++)
if (*data_ptr)
return FALSE;
return TRUE;
}
my_bool bitmap_is_subset(const MY_BITMAP *map1, const MY_BITMAP *map2)
{
uint res=0;
uchar *m1=map1->bitmap, *m2=map2->bitmap, *end;
uint32 *m1= (uint32*)map1->bitmap, *m2= (uint32*)map2->bitmap, *end;
DBUG_ASSERT(map1->bitmap && map2->bitmap &&
map1->bitmap_size==map2->bitmap_size);
bitmap_lock((MY_BITMAP *)map1);
bitmap_lock((MY_BITMAP *)map2);
end= m1+map1->bitmap_size;
end= map1->last_word_ptr;
while (m1 < end)
while (m1 <= end)
{
if ((*m1++) & ~(*m2++))
goto ret;
return 0;
}
res=1;
ret:
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock((MY_BITMAP *)map1);
return res;
}
my_bool bitmap_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2)
{
uint res;
DBUG_ASSERT(map1->bitmap && map2->bitmap &&
map1->bitmap_size==map2->bitmap_size);
bitmap_lock((MY_BITMAP *)map1);
bitmap_lock((MY_BITMAP *)map2);
res= memcmp(map1->bitmap, map2->bitmap, map1->bitmap_size)==0;
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock((MY_BITMAP *)map1);
return res;
return 1;
}
void bitmap_intersect(MY_BITMAP *map, const MY_BITMAP *map2)
{
uchar *to=map->bitmap, *from=map2->bitmap, *end;
uint len=map->bitmap_size, len2=map2->bitmap_size;
uint32 *to= (uint32*)map->bitmap, *from= (uint32*)map2->bitmap, *end;
uint len= no_words_in_map(map), len2 = no_words_in_map(map2);
DBUG_ASSERT(map->bitmap && map2->bitmap);
bitmap_lock(map);
bitmap_lock((MY_BITMAP *)map2);
end= to+min(len,len2);
*map2->last_word_ptr^= map2->last_word_mask; //Clear last bits in map2
while (to < end)
*to++ &= *from++;
......@@ -287,45 +260,291 @@ void bitmap_intersect(MY_BITMAP *map, const MY_BITMAP *map2)
while (to < end)
*to++=0;
}
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock(map);
*map2->last_word_ptr|= map2->last_word_mask; //Set last bits in map
*map->last_word_ptr|= map->last_word_mask; //Set last bits in map2
}
void bitmap_subtract(MY_BITMAP *map, const MY_BITMAP *map2)
{
uchar *to=map->bitmap, *from=map2->bitmap, *end;
uint32 *to= (uint32*)map->bitmap, *from= (uint32*)map2->bitmap, *end;
DBUG_ASSERT(map->bitmap && map2->bitmap &&
map->bitmap_size==map2->bitmap_size);
bitmap_lock(map);
bitmap_lock((MY_BITMAP *)map2);
end= to+map->bitmap_size;
end= map->last_word_ptr;
while (to < end)
while (to <= end)
*to++ &= ~(*from++);
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock(map);
*map->last_word_ptr|= map->last_word_mask; //Set last bits again
}
void bitmap_union(MY_BITMAP *map, const MY_BITMAP *map2)
{
uchar *to=map->bitmap, *from=map2->bitmap, *end;
uint32 *to= (uint32*)map->bitmap, *from= (uint32*)map2->bitmap, *end;
DBUG_ASSERT(map->bitmap && map2->bitmap &&
map->bitmap_size==map2->bitmap_size);
end= map->last_word_ptr;
while (to <= end)
*to++ |= *from++;
}
void bitmap_xor(MY_BITMAP *map, const MY_BITMAP *map2)
{
uint32 *to= (uint32*)map->bitmap, *from= (uint32*)map2->bitmap, *end;
DBUG_ASSERT(map->bitmap && map2->bitmap &&
map->bitmap_size==map2->bitmap_size);
end= map->last_word_ptr;
while (to <= end)
*to++ ^= *from++;
*map->last_word_ptr|= map->last_word_mask; //Set last bits again
}
void bitmap_invert(MY_BITMAP *map)
{
uint32 *to= (uint32*)map->bitmap, *end;
DBUG_ASSERT(map->bitmap);
end= map->last_word_ptr;
while (to <= end)
*to++ ^= 0xFFFFFFFF;
*map->last_word_ptr|= map->last_word_mask; //Set last bits again
}
uint bitmap_bits_set(const MY_BITMAP *map)
{
uchar *m= map->bitmap;
uchar *end= m + no_bytes_in_map(map);
uint res= 0;
DBUG_ASSERT(map->bitmap);
*map->last_word_ptr^=map->last_word_mask; //Reset last bits to zero
while (m < end)
res+= my_count_bits_ushort(*m++);
*map->last_word_ptr^=map->last_word_mask; //Set last bits to one again
return res;
}
uint bitmap_get_first_set(const MY_BITMAP *map)
{
uchar *byte_ptr;
uint bit_found,i,j,k;
uint32 *data_ptr, *end= map->last_word_ptr;
DBUG_ASSERT(map->bitmap);
data_ptr= (uint32*)map->bitmap;
for (i=0; data_ptr <= end; data_ptr++, i++)
{
if (*data_ptr)
{
byte_ptr= (uchar*)data_ptr;
for (j=0; ; j++, byte_ptr++)
{
if (*byte_ptr)
{
for (k=0; ; k++)
{
if (*byte_ptr & (1 << k))
{
bit_found= (i*32) + (j*8) + k;
if (bit_found == map->bitmap_size)
return MY_BIT_NONE;
return bit_found;
}
}
DBUG_ASSERT(1);
}
}
DBUG_ASSERT(1);
}
}
return MY_BIT_NONE;
}
uint bitmap_get_first(const MY_BITMAP *map)
{
uchar *byte_ptr;
uint bit_found= MY_BIT_NONE, i,j,k;
uint32 *data_ptr, *end= map->last_word_ptr;
DBUG_ASSERT(map->bitmap);
data_ptr= (uint32*)map->bitmap;
for (i=0; data_ptr <= end; data_ptr++, i++)
{
if (*data_ptr != 0xFFFFFFFF)
{
byte_ptr= (uchar*)data_ptr;
for (j=0; ; j++, byte_ptr++)
{
if (*byte_ptr != 0xFF)
{
for (k=0; ; k++)
{
if (!(*byte_ptr & (1 << k)))
{
bit_found= (i*32) + (j*8) + k;
if (bit_found == map->bitmap_size)
return MY_BIT_NONE;
return bit_found;
}
}
DBUG_ASSERT(1);
}
}
DBUG_ASSERT(1);
}
}
return MY_BIT_NONE;
}
uint bitmap_lock_set_next(MY_BITMAP *map)
{
uint bit_found;
bitmap_lock(map);
bit_found= bitmap_set_next(map);
bitmap_unlock(map);
return bit_found;
}
void bitmap_lock_clear_bit(MY_BITMAP *map, uint bitmap_bit)
{
bitmap_lock(map);
DBUG_ASSERT(map->bitmap && bitmap_bit < map->bitmap_size);
bitmap_clear_bit(map, bitmap_bit);
bitmap_unlock(map);
}
#ifdef NOT_USED
my_bool bitmap_lock_is_prefix(const MY_BITMAP *map, uint prefix_size)
{
my_bool res;
bitmap_lock((MY_BITMAP *)map);
res= bitmap_is_prefix(map, prefix_size);
bitmap_unlock((MY_BITMAP *)map);
return res;
}
void bitmap_lock_set_all(MY_BITMAP *map)
{
bitmap_lock(map);
bitmap_set_all(map);
bitmap_unlock(map);
}
void bitmap_lock_clear_all(MY_BITMAP *map)
{
bitmap_lock(map);
bitmap_clear_all(map);
bitmap_unlock(map);
}
void bitmap_lock_set_prefix(MY_BITMAP *map, uint prefix_size)
{
bitmap_lock(map);
bitmap_set_prefix(map, prefix_size);
bitmap_unlock(map);
}
my_bool bitmap_lock_is_clear_all(const MY_BITMAP *map)
{
uint res;
bitmap_lock((MY_BITMAP *)map);
res= bitmap_is_clear_all(map);
bitmap_unlock((MY_BITMAP *)map);
return res;
}
my_bool bitmap_lock_is_set_all(const MY_BITMAP *map)
{
uint res;
bitmap_lock((MY_BITMAP *)map);
res= bitmap_is_set_all(map);
bitmap_unlock((MY_BITMAP *)map);
return res;
}
my_bool bitmap_lock_is_set(const MY_BITMAP *map, uint bitmap_bit)
{
my_bool res;
DBUG_ASSERT(map->bitmap && bitmap_bit < map->bitmap_size);
bitmap_lock((MY_BITMAP *)map);
res= bitmap_is_set(map, bitmap_bit);
bitmap_unlock((MY_BITMAP *)map);
return res;
}
my_bool bitmap_lock_is_subset(const MY_BITMAP *map1, const MY_BITMAP *map2)
{
uint res;
bitmap_lock((MY_BITMAP *)map1);
bitmap_lock((MY_BITMAP *)map2);
res= bitmap_is_subset(map1, map2);
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock((MY_BITMAP *)map1);
return res;
}
end= to+map->bitmap_size;
while (to < end)
*to++ |= *from++;
my_bool bitmap_lock_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2)
{
uint res;
DBUG_ASSERT(map1->bitmap && map2->bitmap &&
map1->bitmap_size==map2->bitmap_size);
bitmap_lock((MY_BITMAP *)map1);
bitmap_lock((MY_BITMAP *)map2);
res= bitmap_cmp(map1, map2);
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock((MY_BITMAP *)map1);
return res;
}
void bitmap_lock_intersect(MY_BITMAP *map, const MY_BITMAP *map2)
{
bitmap_lock(map);
bitmap_lock((MY_BITMAP *)map2);
bitmap_intersect(map, map2);
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock(map);
}
void bitmap_lock_subtract(MY_BITMAP *map, const MY_BITMAP *map2)
{
bitmap_lock(map);
bitmap_lock((MY_BITMAP *)map2);
bitmap_subtract(map, map2);
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock(map);
}
void bitmap_lock_union(MY_BITMAP *map, const MY_BITMAP *map2)
{
bitmap_lock(map);
bitmap_lock((MY_BITMAP *)map2);
bitmap_union(map, map2);
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock(map);
}
......@@ -338,19 +557,12 @@ void bitmap_union(MY_BITMAP *map, const MY_BITMAP *map2)
RETURN
Number of set bits in the bitmap.
*/
uint bitmap_bits_set(const MY_BITMAP *map)
{
uchar *m= map->bitmap;
uchar *end= m + map->bitmap_size;
uint res= 0;
DBUG_ASSERT(map->bitmap);
uint bitmap_lock_bits_set(const MY_BITMAP *map)
{
uint res;
bitmap_lock((MY_BITMAP *)map);
while (m < end)
{
res+= my_count_bits_ushort(*m++);
}
DBUG_ASSERT(map->bitmap);
res= bitmap_bits_set(map);
bitmap_unlock((MY_BITMAP *)map);
return res;
}
......@@ -363,33 +575,418 @@ uint bitmap_bits_set(const MY_BITMAP *map)
RETURN
Number of first unset bit in the bitmap or MY_BIT_NONE if all bits are set.
*/
uint bitmap_lock_get_first(const MY_BITMAP *map)
{
uint res;
bitmap_lock((MY_BITMAP*)map);
res= bitmap_get_first(map);
bitmap_unlock((MY_BITMAP*)map);
return res;
}
uint bitmap_get_first(const MY_BITMAP *map)
uint bitmap_lock_get_first_set(const MY_BITMAP *map)
{
uint res;
bitmap_lock((MY_BITMAP*)map);
res= bitmap_get_first_set(map);
bitmap_unlock((MY_BITMAP*)map);
return res;
}
void bitmap_lock_set_bit(MY_BITMAP *map, uint bitmap_bit)
{
DBUG_ASSERT(map->bitmap && bitmap_bit < map->bitmap_size);
bitmap_lock(map);
bitmap_set_bit(map, bitmap_bit);
bitmap_unlock(map);
}
void bitmap_lock_flip_bit(MY_BITMAP *map, uint bitmap_bit)
{
DBUG_ASSERT(map->bitmap && bitmap_bit < map->bitmap_size);
bitmap_lock(map);
bitmap_flip_bit(map, bitmap_bit);
bitmap_unlock(map);
}
#endif
#ifdef TEST_BITMAP
uint get_rand_bit(uint bitsize)
{
return (rand() % bitsize);
}
bool test_set_get_clear_bit(MY_BITMAP *map, uint bitsize)
{
uint i, test_bit;
uint no_loops= bitsize > 128 ? 128 : bitsize;
for (i=0; i < no_loops; i++)
{
test_bit= get_rand_bit(bitsize);
bitmap_set_bit(map, test_bit);
if (!bitmap_is_set(map, test_bit))
goto error1;
bitmap_clear_bit(map, test_bit);
if (bitmap_is_set(map, test_bit))
goto error2;
}
return FALSE;
error1:
printf("Error in set bit, bit %u, bitsize = %u", test_bit, bitsize);
return TRUE;
error2:
printf("Error in clear bit, bit %u, bitsize = %u", test_bit, bitsize);
return TRUE;
}
bool test_flip_bit(MY_BITMAP *map, uint bitsize)
{
uint i, test_bit;
uint no_loops= bitsize > 128 ? 128 : bitsize;
for (i=0; i < no_loops; i++)
{
test_bit= get_rand_bit(bitsize);
bitmap_flip_bit(map, test_bit);
if (!bitmap_is_set(map, test_bit))
goto error1;
bitmap_flip_bit(map, test_bit);
if (bitmap_is_set(map, test_bit))
goto error2;
}
return FALSE;
error1:
printf("Error in flip bit 1, bit %u, bitsize = %u", test_bit, bitsize);
return TRUE;
error2:
printf("Error in flip bit 2, bit %u, bitsize = %u", test_bit, bitsize);
return TRUE;
}
bool test_operators(MY_BITMAP *map, uint bitsize)
{
return FALSE;
}
bool test_get_all_bits(MY_BITMAP *map, uint bitsize)
{
uchar *bitmap=map->bitmap;
uint bit_found = MY_BIT_NONE;
uint bitmap_size=map->bitmap_size*8;
uint i;
bitmap_set_all(map);
if (!bitmap_is_set_all(map))
goto error1;
if (!bitmap_is_prefix(map, bitsize))
goto error5;
bitmap_clear_all(map);
if (!bitmap_is_clear_all(map))
goto error2;
if (!bitmap_is_prefix(map, 0))
goto error6;
for (i=0; i<bitsize;i++)
bitmap_set_bit(map, i);
if (!bitmap_is_set_all(map))
goto error3;
for (i=0; i<bitsize;i++)
bitmap_clear_bit(map, i);
if (!bitmap_is_clear_all(map))
goto error4;
return FALSE;
error1:
printf("Error in set_all, bitsize = %u", bitsize);
return TRUE;
error2:
printf("Error in clear_all, bitsize = %u", bitsize);
return TRUE;
error3:
printf("Error in bitwise set all, bitsize = %u", bitsize);
return TRUE;
error4:
printf("Error in bitwise clear all, bitsize = %u", bitsize);
return TRUE;
error5:
printf("Error in set_all through set_prefix, bitsize = %u", bitsize);
return TRUE;
error6:
printf("Error in clear_all through set_prefix, bitsize = %u", bitsize);
return TRUE;
}
DBUG_ASSERT(map->bitmap);
bitmap_lock((MY_BITMAP *)map);
for (i=0; i < bitmap_size ; i++, bitmap++)
bool test_compare_operators(MY_BITMAP *map, uint bitsize)
{
uint i, j, test_bit1, test_bit2, test_bit3,test_bit4;
uint no_loops= bitsize > 128 ? 128 : bitsize;
MY_BITMAP map2_obj, map3_obj;
MY_BITMAP *map2= &map2_obj, *map3= &map3_obj;
uint32 map2buf[1024];
uint32 map3buf[1024];
bitmap_init(&map2_obj, (uchar*)&map2buf, bitsize, FALSE);
bitmap_init(&map3_obj, (uchar*)&map3buf, bitsize, FALSE);
bitmap_clear_all(map2);
bitmap_clear_all(map3);
for (i=0; i < no_loops; i++)
{
if (*bitmap != 0xff)
{ /* Found slot with free bit */
uint b;
for (b=0; ; b++)
{
if (!(*bitmap & (1 << b)))
{
bit_found = (i*8)+b;
break;
}
}
break; /* Found bit */
test_bit1=get_rand_bit(bitsize);
bitmap_set_prefix(map, test_bit1);
test_bit2=get_rand_bit(bitsize);
bitmap_set_prefix(map2, test_bit2);
bitmap_intersect(map, map2);
test_bit3= test_bit2 < test_bit1 ? test_bit2 : test_bit1;
bitmap_set_prefix(map3, test_bit3);
if (!bitmap_cmp(map, map3))
goto error1;
bitmap_clear_all(map);
bitmap_clear_all(map2);
bitmap_clear_all(map3);
test_bit1=get_rand_bit(bitsize);
test_bit2=get_rand_bit(bitsize);
test_bit3=get_rand_bit(bitsize);
bitmap_set_prefix(map, test_bit1);
bitmap_set_prefix(map2, test_bit2);
test_bit3= test_bit2 > test_bit1 ? test_bit2 : test_bit1;
bitmap_set_prefix(map3, test_bit3);
bitmap_union(map, map2);
if (!bitmap_cmp(map, map3))
goto error2;
bitmap_clear_all(map);
bitmap_clear_all(map2);
bitmap_clear_all(map3);
test_bit1=get_rand_bit(bitsize);
test_bit2=get_rand_bit(bitsize);
test_bit3=get_rand_bit(bitsize);
bitmap_set_prefix(map, test_bit1);
bitmap_set_prefix(map2, test_bit2);
bitmap_xor(map, map2);
test_bit3= test_bit2 > test_bit1 ? test_bit2 : test_bit1;
test_bit4= test_bit2 < test_bit1 ? test_bit2 : test_bit1;
bitmap_set_prefix(map3, test_bit3);
for (j=0; j < test_bit4; j++)
bitmap_clear_bit(map3, j);
if (!bitmap_cmp(map, map3))
goto error3;
bitmap_clear_all(map);
bitmap_clear_all(map2);
bitmap_clear_all(map3);
test_bit1=get_rand_bit(bitsize);
test_bit2=get_rand_bit(bitsize);
test_bit3=get_rand_bit(bitsize);
bitmap_set_prefix(map, test_bit1);
bitmap_set_prefix(map2, test_bit2);
bitmap_subtract(map, map2);
if (test_bit2 < test_bit1)
{
bitmap_set_prefix(map3, test_bit1);
for (j=0; j < test_bit2; j++)
bitmap_clear_bit(map3, j);
}
if (!bitmap_cmp(map, map3))
goto error4;
bitmap_clear_all(map);
bitmap_clear_all(map2);
bitmap_clear_all(map3);
test_bit1=get_rand_bit(bitsize);
bitmap_set_prefix(map, test_bit1);
bitmap_invert(map);
bitmap_set_all(map3);
for (j=0; j < test_bit1; j++)
bitmap_clear_bit(map3, j);
if (!bitmap_cmp(map, map3))
goto error5;
bitmap_clear_all(map);
bitmap_clear_all(map3);
}
bitmap_unlock((MY_BITMAP *)map);
return bit_found;
return FALSE;
error1:
printf("intersect error bitsize=%u,size1=%u,size2=%u", bitsize,
test_bit1,test_bit2);
return TRUE;
error2:
printf("union error bitsize=%u,size1=%u,size2=%u", bitsize,
test_bit1,test_bit2);
return TRUE;
error3:
printf("xor error bitsize=%u,size1=%u,size2=%u", bitsize,
test_bit1,test_bit2);
return TRUE;
error4:
printf("subtract error bitsize=%u,size1=%u,size2=%u", bitsize,
test_bit1,test_bit2);
return TRUE;
error5:
printf("invert error bitsize=%u,size=%u", bitsize,
test_bit1);
return TRUE;
}
bool test_count_bits_set(MY_BITMAP *map, uint bitsize)
{
uint i, bit_count=0, test_bit;
uint no_loops= bitsize > 128 ? 128 : bitsize;
for (i=0; i < no_loops; i++)
{
test_bit=get_rand_bit(bitsize);
if (!bitmap_is_set(map, test_bit))
{
bitmap_set_bit(map, test_bit);
bit_count++;
}
}
if (bit_count==0 && bitsize > 0)
goto error1;
if (bitmap_bits_set(map) != bit_count)
goto error2;
return FALSE;
error1:
printf("No bits set bitsize = %u", bitsize);
return TRUE;
error2:
printf("Wrong count of bits set, bitsize = %u", bitsize);
return TRUE;
}
bool test_get_first_bit(MY_BITMAP *map, uint bitsize)
{
uint i, j, test_bit;
uint no_loops= bitsize > 128 ? 128 : bitsize;
for (i=0; i < no_loops; i++)
{
test_bit=get_rand_bit(bitsize);
bitmap_set_bit(map, test_bit);
if (bitmap_get_first_set(map) != test_bit)
goto error1;
bitmap_set_all(map);
bitmap_clear_bit(map, test_bit);
if (bitmap_get_first(map) != test_bit)
goto error2;
bitmap_clear_all(map);
}
return FALSE;
error1:
printf("get_first_set error bitsize=%u,prefix_size=%u",bitsize,test_bit);
return TRUE;
error2:
printf("get_first error bitsize= %u, prefix_size= %u",bitsize,test_bit);
return TRUE;
}
bool test_get_next_bit(MY_BITMAP *map, uint bitsize)
{
uint i, j, test_bit;
uint no_loops= bitsize > 128 ? 128 : bitsize;
for (i=0; i < no_loops; i++)
{
test_bit=get_rand_bit(bitsize);
for (j=0; j < test_bit; j++)
bitmap_set_next(map);
if (!bitmap_is_prefix(map, test_bit))
goto error1;
bitmap_clear_all(map);
}
return FALSE;
error1:
printf("get_next error bitsize= %u, prefix_size= %u", bitsize,test_bit);
return TRUE;
}
bool test_prefix(MY_BITMAP *map, uint bitsize)
{
uint i, j, test_bit;
uint no_loops= bitsize > 128 ? 128 : bitsize;
for (i=0; i < no_loops; i++)
{
test_bit=get_rand_bit(bitsize);
bitmap_set_prefix(map, test_bit);
if (!bitmap_is_prefix(map, test_bit))
goto error1;
bitmap_clear_all(map);
for (j=0; j < test_bit; j++)
bitmap_set_bit(map, j);
if (!bitmap_is_prefix(map, test_bit))
goto error2;
bitmap_set_all(map);
for (j=bitsize - 1; ~(j-test_bit); j--)
bitmap_clear_bit(map, j);
if (!bitmap_is_prefix(map, test_bit))
goto error3;
bitmap_clear_all(map);
}
return FALSE;
error1:
printf("prefix1 error bitsize = %u, prefix_size = %u", bitsize,test_bit);
return TRUE;
error2:
printf("prefix2 error bitsize = %u, prefix_size = %u", bitsize,test_bit);
return TRUE;
error3:
printf("prefix3 error bitsize = %u, prefix_size = %u", bitsize,test_bit);
return TRUE;
}
bool do_test(uint bitsize)
{
MY_BITMAP map;
uint32 buf[1024];
if (bitmap_init(&map, (uchar*)buf, bitsize, FALSE))
{
printf("init error for bitsize %d", bitsize);
goto error;
}
if (test_set_get_clear_bit(&map,bitsize))
goto error;
bitmap_clear_all(&map);
if (test_flip_bit(&map,bitsize))
goto error;
bitmap_clear_all(&map);
if (test_operators(&map,bitsize))
goto error;
bitmap_clear_all(&map);
if (test_get_all_bits(&map, bitsize))
goto error;
bitmap_clear_all(&map);
if (test_compare_operators(&map,bitsize))
goto error;
bitmap_clear_all(&map);
if (test_count_bits_set(&map,bitsize))
goto error;
bitmap_clear_all(&map);
if (test_get_first_bit(&map,bitsize))
goto error;
bitmap_clear_all(&map);
if (test_get_next_bit(&map,bitsize))
goto error;
if (test_prefix(&map,bitsize))
goto error;
return FALSE;
error:
printf("\n");
return TRUE;
}
int main()
{
int i;
for (i= 1; i < 4096; i++)
{
printf("Start test for bitsize=%u\n",i);
if (do_test(i))
return -1;
}
printf("OK\n");
return 0;
}
/*
This is the way the test part was compiled after a complete tree build with
debug.
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../include -I. -g -O -DDBUG_ON
-DSAFE_MUTEX -fno-omit-frame-pointer -DHAVE_DARWIN_THREADS
-D_P1003_1B_VISIBLE -DSIGNAL_WITH_VIO_CLOSE -DTEST_BITMAP
-DSIGNALS_DONT_BREAK_READ -DIGNORE_SIGHUP_SIGQUIT -MT
my_bitmap.o -MD -MP -MF ".deps/my_bitmap.Tpo" -c -o my_bitmap.o my_bitmap.c
gcc -o my_bitmap my_bitmap.o -L../mysys -lmysys -L../strings -lmystrings
-L../dbug -ldbug
*/
#endif
sql/handler.cc
View file @ 5985904e
......@@ -1357,16 +1357,17 @@ int handler::ha_initialise()
int handler::ha_allocate_read_write_set(ulong no_fields)
{
uint bitmap_size= 4*(((no_fields+1)+31)/32);
uchar *read_buf, *write_buf;
DBUG_ENTER("ha_allocate_read_write_set");
DBUG_PRINT("info", ("no_fields = %d", no_fields));
read_set= new bitvector;
write_set= new bitvector;
if (!read_set || !write_set)
{
ha_deallocate_read_write_set();
DBUG_RETURN(TRUE);
}
if (read_set->init(no_fields+1) || write_set->init(no_fields+1))
read_set= (MY_BITMAP*)sql_alloc(sizeof(MY_BITMAP));
write_set= (MY_BITMAP*)sql_alloc(sizeof(MY_BITMAP));
read_buf= (uchar*)sql_alloc(bitmap_size);
write_buf= (uchar*)sql_alloc(bitmap_size);
DBUG_ASSERT(!bitmap_init(read_set, read_buf, (no_fields+1), FALSE));
DBUG_ASSERT(!bitmap_init(write_set, write_buf, (no_fields+1), FALSE));
if (!read_set || !write_set || !read_buf || !write_buf)
{
ha_deallocate_read_write_set();
DBUG_RETURN(TRUE);
......@@ -1378,8 +1379,6 @@ int handler::ha_allocate_read_write_set(ulong no_fields)
void handler::ha_deallocate_read_write_set()
{
DBUG_ENTER("ha_deallocate_read_write_set");
delete read_set;
delete write_set;
read_set=write_set=0;
DBUG_VOID_RETURN;
}
......@@ -1387,127 +1386,17 @@ void handler::ha_deallocate_read_write_set()
void handler::ha_clear_all_set()
{
DBUG_ENTER("ha_clear_all_set");
read_set->clear_all();
write_set->clear_all();
read_set->set_bit((uint)0);
write_set->set_bit((uint)0);
DBUG_VOID_RETURN;
}
void handler::ha_set_all_bits_in_read_set()
{
DBUG_ENTER("ha_set_all_bits_in_read_set");
read_set->set_all();
DBUG_VOID_RETURN;
}
void handler::ha_set_all_bits_in_write_set()
{
DBUG_ENTER("ha_set_all_bits_in_write_set");
write_set->set_all();
DBUG_VOID_RETURN;
}
void handler::ha_set_bit_in_read_set(uint fieldnr)
{
DBUG_ENTER("ha_set_bit_in_read_set");
DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
read_set->set_bit((size_t)fieldnr);
DBUG_VOID_RETURN;
}
void handler::ha_clear_bit_in_read_set(uint fieldnr)
{
DBUG_ENTER("ha_clear_bit_in_read_set");
DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
read_set->clear_bit((size_t)fieldnr);
DBUG_VOID_RETURN;
}
void handler::ha_set_bit_in_write_set(uint fieldnr)
{
DBUG_ENTER("ha_set_bit_in_write_set");
DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
write_set->set_bit((size_t)fieldnr);
DBUG_VOID_RETURN;
}
void handler::ha_clear_bit_in_write_set(uint fieldnr)
{
DBUG_ENTER("ha_clear_bit_in_write_set");
DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
write_set->clear_bit((size_t)fieldnr);
DBUG_VOID_RETURN;
}
void handler::ha_set_bit_in_rw_set(uint fieldnr, bool write_op)
{
DBUG_ENTER("ha_set_bit_in_rw_set");
if (!write_op) {
DBUG_PRINT("info", ("Set bit %u in read set", fieldnr));
read_set->set_bit((size_t)fieldnr);
}
else
{
DBUG_PRINT("info", ("Set bit %u in read and write set", fieldnr));
read_set->set_bit((size_t)fieldnr);
write_set->set_bit((size_t)fieldnr);
}
bitmap_clear_all(read_set);
bitmap_clear_all(write_set);
bitmap_set_bit(read_set, 0);
bitmap_set_bit(write_set, 0);
DBUG_VOID_RETURN;
}
bool handler::ha_get_bit_in_read_set(uint fieldnr)
{
bool bit_set=read_set->get_bit((size_t)fieldnr);
DBUG_ENTER("ha_get_bit_in_read_set");
DBUG_PRINT("info", ("bit %u = %u", fieldnr, bit_set));
DBUG_RETURN(bit_set);
}
bool handler::ha_get_bit_in_write_set(uint fieldnr)
{
bool bit_set=write_set->get_bit((size_t)fieldnr);
DBUG_ENTER("ha_get_bit_in_write_set");
DBUG_PRINT("info", ("bit %u = %u", fieldnr, bit_set));
DBUG_RETURN(bit_set);
}
bool handler::ha_get_all_bit_in_read_set()
{
bool bit_set=read_set->get_all_bits_set();
DBUG_ENTER("ha_get_all_bit_in_read_set");
DBUG_PRINT("info", ("all bits set = %u", bit_set));
DBUG_RETURN(bit_set);
}
bool handler::ha_get_all_bit_in_read_clear()
{
bool bit_set=read_set->get_all_bits_clear();
DBUG_ENTER("ha_get_all_bit_in_read_clear");
DBUG_PRINT("info", ("all bits clear = %u", bit_set));
DBUG_RETURN(bit_set);
}
bool handler::ha_get_all_bit_in_write_set()
{
bool bit_set=write_set->get_all_bits_set();
DBUG_ENTER("ha_get_all_bit_in_write_set");
DBUG_PRINT("info", ("all bits set = %u", bit_set));
DBUG_RETURN(bit_set);
}
bool handler::ha_get_all_bit_in_write_clear()
{
bool bit_set=write_set->get_all_bits_clear();
DBUG_ENTER("ha_get_all_bit_in_write_clear");
DBUG_PRINT("info", ("all bits clear = %u", bit_set));
DBUG_RETURN(bit_set);
}
int handler::ha_retrieve_all_cols()
{
DBUG_ENTER("handler::ha_retrieve_all_cols");
read_set->set_all();
bitmap_set_all(read_set);
DBUG_RETURN(0);
}
......
sql/handler.h
View file @ 5985904e
......@@ -486,8 +486,8 @@ public:
bool auto_increment_column_changed;
bool implicit_emptied; /* Can be !=0 only if HEAP */
const COND *pushed_cond;
bitvector *read_set;
bitvector *write_set;
MY_BITMAP *read_set;
MY_BITMAP *write_set;
handler(TABLE *table_arg) :table(table_arg),
ref(0), data_file_length(0), max_data_file_length(0), index_file_length(0),
......@@ -497,7 +497,7 @@ public:
key_used_on_scan(MAX_KEY), active_index(MAX_KEY),
ref_length(sizeof(my_off_t)), block_size(0),
raid_type(0), ft_handler(0), inited(NONE), implicit_emptied(0),
pushed_cond(NULL), read_set(0), write_set(0)
pushed_cond(NULL)
{}
virtual ~handler(void)
{
......@@ -597,24 +597,107 @@ public:
*/
virtual int ha_retrieve_all_cols();
virtual int ha_retrieve_all_pk();
void ha_set_all_bits_in_read_set();
void ha_set_all_bits_in_write_set();
void ha_set_bit_in_read_set(uint fieldnr);
void ha_clear_bit_in_read_set(uint fieldnr);
void ha_set_bit_in_write_set(uint fieldnr);
void ha_clear_bit_in_write_set(uint fieldnr);
void ha_set_bit_in_rw_set(uint fieldnr, bool write_set);
bool ha_get_bit_in_read_set(uint fieldnr);
bool ha_get_bit_in_write_set(uint fieldnr);
bool ha_get_all_bit_in_read_set();
bool ha_get_all_bit_in_read_clear();
bool ha_get_all_bit_in_write_set();
bool ha_get_all_bit_in_write_clear();
void ha_set_all_bits_in_read_set()
{
DBUG_ENTER("ha_set_all_bits_in_read_set");
bitmap_set_all(read_set);
DBUG_VOID_RETURN;
}
void ha_set_all_bits_in_write_set()
{
DBUG_ENTER("ha_set_all_bits_in_write_set");
bitmap_set_all(write_set);
DBUG_VOID_RETURN;
}
void ha_set_bit_in_read_set(uint fieldnr)
{
DBUG_ENTER("ha_set_bit_in_read_set");
DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
bitmap_set_bit(read_set, fieldnr);
DBUG_VOID_RETURN;
}
void ha_clear_bit_in_read_set(uint fieldnr)
{
DBUG_ENTER("ha_clear_bit_in_read_set");
DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
bitmap_clear_bit(read_set, fieldnr);
DBUG_VOID_RETURN;
}
void ha_set_bit_in_write_set(uint fieldnr)
{
DBUG_ENTER("ha_set_bit_in_write_set");
DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
bitmap_set_bit(write_set, fieldnr);
DBUG_VOID_RETURN;
}
void ha_clear_bit_in_write_set(uint fieldnr)
{
DBUG_ENTER("ha_clear_bit_in_write_set");
DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
bitmap_clear_bit(write_set, fieldnr);
DBUG_VOID_RETURN;
}
void ha_set_bit_in_rw_set(uint fieldnr, bool write_op)
{
DBUG_ENTER("ha_set_bit_in_rw_set");
DBUG_PRINT("info", ("Set bit %u in read set", fieldnr));
bitmap_set_bit(read_set, fieldnr);
if (!write_op) {
DBUG_VOID_RETURN;
}
else
{
DBUG_PRINT("info", ("Set bit %u in read and write set", fieldnr));
bitmap_set_bit(write_set, fieldnr);
}
DBUG_VOID_RETURN;
}
bool ha_get_bit_in_read_set(uint fieldnr)
{
bool bit_set=bitmap_is_set(read_set,fieldnr);
DBUG_ENTER("ha_get_bit_in_read_set");
DBUG_PRINT("info", ("bit %u = %u", fieldnr, bit_set));
DBUG_RETURN(bit_set);
}
bool ha_get_bit_in_write_set(uint fieldnr)
{
bool bit_set=bitmap_is_set(write_set,fieldnr);
DBUG_ENTER("ha_get_bit_in_write_set");
DBUG_PRINT("info", ("bit %u = %u", fieldnr, bit_set));
DBUG_RETURN(bit_set);
}
bool ha_get_all_bit_in_read_set()
{
bool all_bits_set= bitmap_is_set_all(read_set);
DBUG_ENTER("ha_get_all_bit_in_read_set");
DBUG_PRINT("info", ("all bits set = %u", all_bits_set));
DBUG_RETURN(all_bits_set);
}
bool ha_get_all_bit_in_read_clear()
{
bool all_bits_set= bitmap_is_clear_all(read_set);
DBUG_ENTER("ha_get_all_bit_in_read_clear");
DBUG_PRINT("info", ("all bits clear = %u", all_bits_set));
DBUG_RETURN(all_bits_set);
}
bool ha_get_all_bit_in_write_set()
{
bool all_bits_set= bitmap_is_set_all(write_set);
DBUG_ENTER("ha_get_all_bit_in_write_set");
DBUG_PRINT("info", ("all bits set = %u", all_bits_set));
DBUG_RETURN(all_bits_set);
}
bool ha_get_all_bit_in_write_clear()
{
bool all_bits_set= bitmap_is_clear_all(write_set);
DBUG_ENTER("ha_get_all_bit_in_write_clear");
DBUG_PRINT("info", ("all bits clear = %u", all_bits_set));
DBUG_RETURN(all_bits_set);
}
void ha_set_primary_key_in_read_set();
int ha_allocate_read_write_set(ulong no_fields);
void ha_deallocate_read_write_set();
void ha_clear_all_set();
uint get_index(void) const { return active_index; }
virtual int open(const char *name, int mode, uint test_if_locked)=0;
virtual int close(void)=0;
......
sql/opt_range.cc
View file @ 5985904e
......@@ -1566,7 +1566,8 @@ static int fill_used_fields_bitmap(PARAM *param)
param->fields_bitmap_size= (table->s->fields/8 + 1);
uchar *tmp;
uint pk;
if (!(tmp= (uchar*)alloc_root(param->mem_root,param->fields_bitmap_size)) ||
if (!(tmp= (uchar*)alloc_root(param->mem_root,
bytes_word_aligned(param->fields_bitmap_size))) ||
bitmap_init(&param->needed_fields, tmp, param->fields_bitmap_size*8,
FALSE))
return 1;
......@@ -2321,7 +2322,7 @@ ROR_SCAN_INFO *make_ror_scan(const PARAM *param, int idx, SEL_ARG *sel_arg)
ror_scan->records= param->table->quick_rows[keynr];
if (!(bitmap_buf= (uchar*)alloc_root(param->mem_root,
param->fields_bitmap_size)))
bytes_word_aligned(param->fields_bitmap_size))))
DBUG_RETURN(NULL);
if (bitmap_init(&ror_scan->covered_fields, bitmap_buf,
......@@ -2441,7 +2442,8 @@ ROR_INTERSECT_INFO* ror_intersect_init(const PARAM *param)
sizeof(ROR_INTERSECT_INFO))))
return NULL;
info->param= param;
if (!(buf= (uchar*)alloc_root(param->mem_root, param->fields_bitmap_size)))
if (!(buf= (uchar*)alloc_root(param->mem_root,
bytes_word_aligned(param->fields_bitmap_size))))
return NULL;
if (bitmap_init(&info->covered_fields, buf, param->fields_bitmap_size*8,
FALSE))
......@@ -2998,7 +3000,8 @@ TRP_ROR_INTERSECT *get_best_covering_ror_intersect(PARAM *param,
/*I=set of all covering indexes */
ror_scan_mark= tree->ror_scans;
uchar buf[MAX_KEY/8+1];
uint32 int_buf[MAX_KEY/32+1];
uchar *buf= (uchar*)&int_buf;
MY_BITMAP covered_fields;
if (bitmap_init(&covered_fields, buf, nbits, FALSE))
DBUG_RETURN(0);
......
sql/sql_bitmap.h
View file @ 5985904e
......@@ -25,7 +25,7 @@
template <uint default_width> class Bitmap
{
MY_BITMAP map;
uchar buffer[(default_width+7)/8];
uint32 buffer[(default_width+31)/32];
public:
Bitmap() { init(); }
Bitmap(Bitmap& from) { *this=from; }
......@@ -62,17 +62,18 @@ public:
char *print(char *buf) const
{
char *s=buf; int i;
uchar *uchar_buffer= (uchar*)&buffer;
for (i=sizeof(buffer)-1; i>=0 ; i--)
{
if ((*s=_dig_vec_upper[buffer[i] >> 4]) != '0')
if ((*s=_dig_vec_upper[uchar_buffer[i] >> 4]) != '0')
break;
if ((*s=_dig_vec_upper[buffer[i] & 15]) != '0')
if ((*s=_dig_vec_upper[uchar_buffer[i] & 15]) != '0')
break;
}
for (s++, i-- ; i>=0 ; i--)
{
*s++=_dig_vec_upper[buffer[i] >> 4];
*s++=_dig_vec_upper[buffer[i] & 15];
*s++=_dig_vec_upper[uchar_buffer[i] >> 4];
*s++=_dig_vec_upper[uchar_buffer[i] & 15];
}
*s=0;
return buf;
......
sql/sql_select.cc
View file @ 5985904e
......@@ -7946,7 +7946,7 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
statistic_increment(thd->status_var.created_tmp_tables, &LOCK_status);
if (use_temp_pool)
temp_pool_slot = bitmap_set_next(&temp_pool);
temp_pool_slot = bitmap_lock_set_next(&temp_pool);
if (temp_pool_slot != MY_BIT_NONE) // we got a slot
sprintf(filename, "%s_%lx_%i", tmp_file_prefix,
......@@ -7998,12 +7998,12 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
param->group_length : 0,
NullS))
{
bitmap_clear_bit(&temp_pool, temp_pool_slot);
bitmap_lock_clear_bit(&temp_pool, temp_pool_slot);
DBUG_RETURN(NULL); /* purecov: inspected */
}
if (!(param->copy_field=copy=new Copy_field[field_count]))
{
bitmap_clear_bit(&temp_pool, temp_pool_slot);
bitmap_lock_clear_bit(&temp_pool, temp_pool_slot);
my_free((gptr) table,MYF(0)); /* purecov: inspected */
DBUG_RETURN(NULL); /* purecov: inspected */
}
......@@ -8449,7 +8449,7 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
err:
free_tmp_table(thd,table); /* purecov: inspected */
bitmap_clear_bit(&temp_pool, temp_pool_slot);
bitmap_lock_clear_bit(&temp_pool, temp_pool_slot);
DBUG_RETURN(NULL); /* purecov: inspected */
}
......@@ -8723,7 +8723,7 @@ free_tmp_table(THD *thd, TABLE *entry)
my_free((gptr) entry->record[0],MYF(0));
free_io_cache(entry);
bitmap_clear_bit(&temp_pool, entry->temp_pool_slot);
bitmap_lock_clear_bit(&temp_pool, entry->temp_pool_slot);
my_free((gptr) entry,MYF(0));
thd->proc_info=save_proc_info;
......
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