format-patch: introduce format.useAutoBase configuration
[gitweb.git] / ewah / bitmap.c
index 710e58c1bfc652d5f01b47cba5016d2e2f91f590..7103ceefbff6768042161345565bb773ab6b8d30 100644 (file)
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
-#include "git-compat-util.h"
+#include "cache.h"
 #include "ewok.h"
 
-#define MASK(x) ((eword_t)1 << (x % BITS_IN_WORD))
-#define BLOCK(x) (x / BITS_IN_WORD)
+#define EWAH_MASK(x) ((eword_t)1 << (x % BITS_IN_EWORD))
+#define EWAH_BLOCK(x) (x / BITS_IN_EWORD)
 
 struct bitmap *bitmap_new(void)
 {
-       struct bitmap *bitmap = ewah_malloc(sizeof(struct bitmap));
-       bitmap->words = ewah_calloc(32, sizeof(eword_t));
+       struct bitmap *bitmap = xmalloc(sizeof(struct bitmap));
+       bitmap->words = xcalloc(32, sizeof(eword_t));
        bitmap->word_alloc = 32;
        return bitmap;
 }
 
 void bitmap_set(struct bitmap *self, size_t pos)
 {
-       size_t block = BLOCK(pos);
+       size_t block = EWAH_BLOCK(pos);
 
        if (block >= self->word_alloc) {
                size_t old_size = self->word_alloc;
                self->word_alloc = block * 2;
-               self->words = ewah_realloc(self->words,
-                       self->word_alloc * sizeof(eword_t));
-
+               REALLOC_ARRAY(self->words, self->word_alloc);
                memset(self->words + old_size, 0x0,
                        (self->word_alloc - old_size) * sizeof(eword_t));
        }
 
-       self->words[block] |= MASK(pos);
+       self->words[block] |= EWAH_MASK(pos);
 }
 
 void bitmap_clear(struct bitmap *self, size_t pos)
 {
-       size_t block = BLOCK(pos);
+       size_t block = EWAH_BLOCK(pos);
 
        if (block < self->word_alloc)
-               self->words[block] &= ~MASK(pos);
+               self->words[block] &= ~EWAH_MASK(pos);
 }
 
 int bitmap_get(struct bitmap *self, size_t pos)
 {
-       size_t block = BLOCK(pos);
+       size_t block = EWAH_BLOCK(pos);
        return block < self->word_alloc &&
-               (self->words[block] & MASK(pos)) != 0;
+               (self->words[block] & EWAH_MASK(pos)) != 0;
 }
 
 struct ewah_bitmap *bitmap_to_ewah(struct bitmap *bitmap)
@@ -100,12 +98,7 @@ struct bitmap *ewah_to_bitmap(struct ewah_bitmap *ewah)
        ewah_iterator_init(&it, ewah);
 
        while (ewah_iterator_next(&blowup, &it)) {
-               if (i >= bitmap->word_alloc) {
-                       bitmap->word_alloc *= 1.5;
-                       bitmap->words = ewah_realloc(
-                               bitmap->words, bitmap->word_alloc * sizeof(eword_t));
-               }
-
+               ALLOC_GROW(bitmap->words, i + 1, bitmap->word_alloc);
                bitmap->words[i++] = blowup;
        }
 
@@ -127,15 +120,14 @@ void bitmap_and_not(struct bitmap *self, struct bitmap *other)
 void bitmap_or_ewah(struct bitmap *self, struct ewah_bitmap *other)
 {
        size_t original_size = self->word_alloc;
-       size_t other_final = (other->bit_size / BITS_IN_WORD) + 1;
+       size_t other_final = (other->bit_size / BITS_IN_EWORD) + 1;
        size_t i = 0;
        struct ewah_iterator it;
        eword_t word;
 
        if (self->word_alloc < other_final) {
                self->word_alloc = other_final;
-               self->words = ewah_realloc(self->words,
-                       self->word_alloc * sizeof(eword_t));
+               REALLOC_ARRAY(self->words, self->word_alloc);
                memset(self->words + original_size, 0x0,
                        (self->word_alloc - original_size) * sizeof(eword_t));
        }
@@ -155,17 +147,17 @@ void bitmap_each_bit(struct bitmap *self, ewah_callback callback, void *data)
                uint32_t offset;
 
                if (word == (eword_t)~0) {
-                       for (offset = 0; offset < BITS_IN_WORD; ++offset)
+                       for (offset = 0; offset < BITS_IN_EWORD; ++offset)
                                callback(pos++, data);
                } else {
-                       for (offset = 0; offset < BITS_IN_WORD; ++offset) {
+                       for (offset = 0; offset < BITS_IN_EWORD; ++offset) {
                                if ((word >> offset) == 0)
                                        break;
 
                                offset += ewah_bit_ctz64(word >> offset);
                                callback(pos + offset, data);
                        }
-                       pos += BITS_IN_WORD;
+                       pos += BITS_IN_EWORD;
                }
        }
 }