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ewah: use less generic macro name 

The ewah/ewok.h header pollutes the global namespace with
"BITS_IN_WORD", without any specific notion that we are
talking about the bits in an eword_t. We can give this the
more specific name "BITS_IN_EWORD".

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2015-06-03 02:39:37 -04:00 committed by Junio C Hamano
parent 414382fb00
commit 34b935c01f
4 changed files with 23 additions and 23 deletions
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12
ewah/bitmap.c
View File

@ -20,8 +20,8 @@
#include "git-compat-util.h"
#include "ewok.h"
#define EWAH_MASK(x) ((eword_t)1 << (x % BITS_IN_WORD))
#define EWAH_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)
{
@ -127,7 +127,7 @@ 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;
@ -155,17 +155,17 @@ 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;
}
}
}

22
ewah/ewah_bitmap.c
View File

@ -102,7 +102,7 @@ size_t ewah_add_empty_words(struct ewah_bitmap *self, int v, size_t number)
if (number == 0)
return 0;
self->bit_size += number * BITS_IN_WORD;
self->bit_size += number * BITS_IN_EWORD;
return add_empty_words(self, v, number);
}
@ -152,7 +152,7 @@ void ewah_add_dirty_words(
self->buffer_size += can_add;
}
self->bit_size += can_add * BITS_IN_WORD;
self->bit_size += can_add * BITS_IN_EWORD;
if (number - can_add == 0)
break;
@ -197,7 +197,7 @@ static size_t add_empty_word(struct ewah_bitmap *self, int v)
size_t ewah_add(struct ewah_bitmap *self, eword_t word)
{
self->bit_size += BITS_IN_WORD;
self->bit_size += BITS_IN_EWORD;
if (word == 0)
return add_empty_word(self, 0);
@ -211,8 +211,8 @@ size_t ewah_add(struct ewah_bitmap *self, eword_t word)
void ewah_set(struct ewah_bitmap *self, size_t i)
{
const size_t dist =
(i + BITS_IN_WORD) / BITS_IN_WORD -
(self->bit_size + BITS_IN_WORD - 1) / BITS_IN_WORD;
(i + BITS_IN_EWORD) / BITS_IN_EWORD -
(self->bit_size + BITS_IN_EWORD - 1) / BITS_IN_EWORD;
assert(i >= self->bit_size);
@ -222,19 +222,19 @@ void ewah_set(struct ewah_bitmap *self, size_t i)
if (dist > 1)
add_empty_words(self, 0, dist - 1);
add_literal(self, (eword_t)1 << (i % BITS_IN_WORD));
add_literal(self, (eword_t)1 << (i % BITS_IN_EWORD));
return;
}
if (rlw_get_literal_words(self->rlw) == 0) {
rlw_set_running_len(self->rlw,
rlw_get_running_len(self->rlw) - 1);
add_literal(self, (eword_t)1 << (i % BITS_IN_WORD));
add_literal(self, (eword_t)1 << (i % BITS_IN_EWORD));
return;
}
self->buffer[self->buffer_size - 1] |=
((eword_t)1 << (i % BITS_IN_WORD));
((eword_t)1 << (i % BITS_IN_EWORD));
/* check if we just completed a stream of 1s */
if (self->buffer[self->buffer_size - 1] == (eword_t)(~0)) {
@ -255,11 +255,11 @@ void ewah_each_bit(struct ewah_bitmap *self, void (*callback)(size_t, void*), vo
eword_t *word = &self->buffer[pointer];
if (rlw_get_run_bit(word)) {
size_t len = rlw_get_running_len(word) * BITS_IN_WORD;
size_t len = rlw_get_running_len(word) * BITS_IN_EWORD;
for (k = 0; k < len; ++k, ++pos)
callback(pos, payload);
} else {
pos += rlw_get_running_len(word) * BITS_IN_WORD;
pos += rlw_get_running_len(word) * BITS_IN_EWORD;
}
++pointer;
@ -268,7 +268,7 @@ void ewah_each_bit(struct ewah_bitmap *self, void (*callback)(size_t, void*), vo
int c;
/* todo: zero count optimization */
for (c = 0; c < BITS_IN_WORD; ++c, ++pos) {
for (c = 0; c < BITS_IN_EWORD; ++c, ++pos) {
if ((self->buffer[pointer] & ((eword_t)1 << c)) != 0)
callback(pos, payload);
}

2
ewah/ewok.h
View File

@ -31,7 +31,7 @@
#endif
typedef uint64_t eword_t;
#define BITS_IN_WORD (sizeof(eword_t) * 8)
#define BITS_IN_EWORD (sizeof(eword_t) * 8)
/**
* Do not use __builtin_popcountll. The GCC implementation

10
pack-bitmap.c
View File

@ -618,7 +618,7 @@ static void show_objects_for_type(
while (i < objects->word_alloc && ewah_iterator_next(&filter, &it)) {
eword_t word = objects->words[i] & filter;
for (offset = 0; offset < BITS_IN_WORD; ++offset) {
for (offset = 0; offset < BITS_IN_EWORD; ++offset) {
const unsigned char *sha1;
struct revindex_entry *entry;
uint32_t hash = 0;
@ -640,7 +640,7 @@ static void show_objects_for_type(
show_reach(sha1, object_type, 0, hash, bitmap_git.pack, entry->offset);
}
pos += BITS_IN_WORD;
pos += BITS_IN_EWORD;
i++;
}
}
@ -772,7 +772,7 @@ int reuse_partial_packfile_from_bitmap(struct packed_git **packfile,
break;
}
reuse_objects += BITS_IN_WORD;
reuse_objects += BITS_IN_EWORD;
}
#ifdef GIT_BITMAP_DEBUG
@ -995,7 +995,7 @@ static int rebuild_bitmap(uint32_t *reposition,
while (ewah_iterator_next(&word, &it)) {
uint32_t offset, bit_pos;
for (offset = 0; offset < BITS_IN_WORD; ++offset) {
for (offset = 0; offset < BITS_IN_EWORD; ++offset) {
if ((word >> offset) == 0)
break;
@ -1008,7 +1008,7 @@ static int rebuild_bitmap(uint32_t *reposition,
return -1;
}
pos += BITS_IN_WORD;
pos += BITS_IN_EWORD;
}
return 0;
}